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Last Updated :2024/09/25

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Master

Affiliation (Master)

  • Faculty of Engineering　Division of Architecture　Research Group of Architectural and Environmental Design

Affiliation (Master)

  • Faculty of Engineering　Division of Architecture　Research Group of Architectural and Environmental Design

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Profile and Settings

Profile and Settings

  • Contact Point

    Motoya.Hayashieng.hokudai.ac.jp

  • Name (Japanese)

    Motoya

  • Name (Kana)

    Hayashi

  • Name

    201701005486180385

Achievement

Research Interests

  • 建築設備感染症対策   住居衛生   シックハウス対策   サステナブル建築デザイン   建築物衛生法   

Research Areas

  • Social infrastructure (civil Engineering, architecture, disaster prevention) / Construction environment and equipment

Research Experience

  • 2020/04 - Today Hokkaido University Division of Architecture Professor
  • 2014/10 - 2020/03 National Institute of Public Health Research managing director
  • 2009/04 - 2014/09 Miyagi Gakuin Women's University Faculty of Liberal Arts, Department of Lifestyle and Space Design
  • 2004/04 - 2009/03 Miyagi Gakuin Women's University Graduate Studies for Humanities and Cultural Sciences
  • 2002/04 - 2004/03 Miyagi Gakuin Women's University Faculty of Liberal Arts
  • 2000/04 - 2002/03 Miyagi Gakuin Women's University Faculty of Liberal Arts
  • 1999/04 - 2000/03 宮城学院女子短期大学 助教授
  • 1988/04 - 1999/03 積水ハウス株式会社

Education

  • 1983/04 - 1988/03  Hokkaido University  Graduate School of Engineering
  • 1979/04 - 1983/03  Hokkaido University  School of Engineering

Awards

  • 2019/05 Architectural Institute of Japan AIJ Prize Research Paper Division
     Studies on Characteristics of Air leakage and Continuous Ventilation Design in Detached Houses
  • 2019/01 建築物衛生管理全国大会 Special presentation award of conference on building environment and health in 2019
     事務所建築における室内PM2.5の特性評価 
    受賞者: 小松礼奈、鍵直樹、柳宇、東賢一、金勲、林基哉、開原典子
  • 2018/08 空気清浄とコンタミネーションコントロール研究大会 Incentive award of JACA conference in 2018
     事務所建築物室内における室内PM2.5の粒径別評価 
    受賞者: 小松礼奈、鍵直樹、柳宇、東賢一、金勲、林基哉、開原典子、大澤元毅
  • 2016/12 室内環境学会 平成28年度室内環境学会・論文賞
     高齢者施設における冬期の温度，湿度，CO2濃度の実測調査及び湿度管理に関する分析 
    受賞者: 金勲,林基哉;阪東美智子;開原典子;大澤元毅
  • 2014/12 室内環境学会 平成26年室内環境学会学術大会・ポスター賞
     東日本大震災の省エネルギー型復興住宅の設計支援ツール 
    受賞者: 林基哉;吉野博
  • 2012/09 10th international CIB Conference Healthy Building 2012 Best Poster Award
     Numerical Experiments on Indoor Air Quality Considering Infiltration of Mould from Crawl Space
  • 2005/02 積水ハウス株式会社 Excellent Invention Award
     特許第2998743号「戸建住宅用自然換気建物の構造及び自然換気システム」 
    受賞者: 林基哉、他4
  • 2004/12 発明協会大阪支部 Osaka Branch Manager award of Institute of Invention and Innovation
     ハイブリット換気システム 
    受賞者: 林基哉、他4
  • 2000/04 Architectural Institute of Japan Encouragement Prize of AIJ
     The Characteristics of Ventilation in Houses with a Central Ventilation System Using Stack Effect in Cold Regions - A Feasibility Study on Air Supply System using Beam Space Chamber -
  • 1999/09 Building Simulation 99 Best Poster Award Third Prize
     SIMULATION OF VENTILATION AND INDOOR AIR QUALITY IN HOUSES USING AVERAGE JAPANESE DAILY SCHEDULE
  • 1998/11 積水ハウス株式会社 Sekisui House Science Award（First Class)
     ハイブリット換気システムの開発 
    受賞者: 開発チーム(代表 林基哉・他多数)
  • 1996/06 INDOOR AIR 96 Poster Award
     PERFORMANCE OF A PASSIVE VENTILATION SYSTEM USING BEAM SPACE AS A FRESH AIR SUPPLY CHAMBER
  • 1990/09 積水ハウス株式会社 Sekisui House Technical Achievement Award
     寒冷地住宅技術改良プロジェクト 
    受賞者: プロジェクトチーム(林基哉・他多数)
  • 1988/09 The first international CIB Conference“Healthy Buildings 88” Poster Award Silver Prize
     ON THE AIRTIGHTNESS OF THE JAPANESE WOODEN HOUSE

Published Papers

  • Ryo ASAOKA, Wataru UMISHIO, Naoki KAGI, Motoya HAYASHI, Takao SAWACHI, Takahiro UENO
    Journal of Environmental Engineering (Transactions of AIJ) 89 (817) 135 - 140 1348-0685 2024/03/01
  • Motoya Hayashi, Yoshinori Honma, Koki Kikuta, Asako Hasegawa, Sayaka Murata, Hiromi Yamada, Masayuki Ogata, Naoki Kagi, U Yanagi, Toshio Yamanaka, Hoon Kim, Kenichi Kobayashi, Noriko Kaihara, Akira Ito, Fumihiko Shinohara, Shoichi Morimoto
    JAPAN ARCHITECTURAL REVIEW 7 (1) 2475-8876 2024/01 
    Abstract COVID‐19 outbreaks occurred in several hospitals, and the National Institute of Infectious Diseases, local authorities, and universities carried out investigations into ventilation in hospitals. The results indicated that ventilation performance was insufficient to prevent aerosol infection due to poor air conditioning, equipment maintenance, and existing ventilation design guidelines. The authors investigated guidelines for ventilation measures for general patient wards with the cooperation of The Society of Air‐Conditioning and Sanitary Engineers of Japan and the Japanese Society for Infection Prevention and Control. Based on a survey of COVID‐19 outbreaks in hospitals, ventilation countermeasure plans for 3 stages (a. normal conditions, b. increased risk of outbreaks, and c. infected patients treated) were compiled.
  • Junichiro Matsunaga, Koki Kikuta, Hideki Hirakawa, Motoya Hayashi, Akira Fukushima
    Energies 2023/07/21
  • Han Yang, Koki Kikuta, Motoya Hayashi
    Energies 2023/07/10
  • Ryo ASAOKA, Wataru UMISHIO, Naoki KAGI, Motoya HAYASHI, Takao SAWACHI, Takahiro UENO
    Journal of Environmental Engineering (Transactions of AIJ) 88 (808) 547 - 555 1348-0685 2023/06/01
  • Hoon KIM, Michiko BANDO, Kenichi KOBAYASHI, Kei SHIMONOSONO, Naoki KAGI, U YANAGI, Koki KIKUTA, Motoya HAYASHI
    Journal of Environmental Engineering (Transactions of AIJ) 88 (806) 300 - 306 1348-0685 2023/04/01
  • Motoya Hayashi, U Yanagi, Yoshinori Honma, Yoshihide Yamamoto, Masayuki Ogata, Koki Kikuta, Naoki Kagi, Shin-ichi Tanabe
    Atmosphere 14 (1) 150 - 150 2023/01/10 
    The importance of effective ventilation as one of the measures against COVID-19 is widely recognized worldwide. In Japan, at the early stage of the pandemic, in March 2020, an official announcement was made about basic ventilation measures against COVID-19. WHO also used the term “long-range aerosol or long-range airborne transmission” for the first time in December 2021. Based on the aerosol infection control measures before 2021 by the Japanese government, we conducted experiments on methods related to partition placement as an element of effective ventilation methods. In July 2022, the governmental subcommittee on Novel Coronavirus Disease Control provided an emergent proposal about effective ventilation methods to prevent two types of aerosol infection; infection by large aerosol on the air current and infection by small floating aerosol diffusion in a room. They also showed the way of setting droplet prevention partitions, which do not block off ventilation based on this investigation’s results.
  • Taisei AKAMATSU, Taro MORI, Motoya HAYASHI, Hirofumi HAYAMA
    Journal of Environmental Engineering (Transactions of AIJ) 88 (803) 43 - 49 1348-0685 2023/01/01
  • Takashi Kawasaki, Koki Kikuta, Motoya Hayashi, Michiko Bando, Kenichi Hasegawa, Takao Sawachi
    Indoor air 32 (10) e13136  2022/10 
    Appropriate knowledge and actions of residents in housing are expected to reduce health effects, defined as "living literacy." With the spread of COVID-19 and the diversification of lifestyles, a quantitative evaluation of a comprehensive model that includes living literacy in the housing environment is required. In this study, the author conducted two web-based surveys of approximately 2000 different households in Japan during the summer of 2020 and winter of 2021, and a statistical analysis based on the survey results. As a result, ventilation by opening windows was observed as a new resident behavior trend under COVID-19. In addition, structural equation modeling using the survey samples confirmed the certain relationship between living literacy and subjective evaluation of the indoor environment and health effects in both periods.
  • Han Yang, Koki Kikuta, Motoya Hayashi
    Energies 15 (5) 1873  2022/03/03 [Refereed][Not invited]
  • Taro Mori, Taisei Akamatsu, Kouhei Kuwabara, Motoya Hayashi
    Energies 15 (5) 2022/03/01 
    A report released by the WHO indicates that aerosols from infected people are one of the major sources of the spread of COVID-19. Therefore, as the COVID-19 infection caused by the SARS-CoV-2 virus spreads, it has become necessary to reconsider the design and operation of buildings. Inside school buildings in cold regions, not only is it not easy to increase ventilation during the winter, but it may also be difficult for students to attend classes while wearing masks during the summer because such buildings are not equipped with air-conditioning systems. In short, school buildings in cold climates have more problems than those in warm climates. We report on the results of indoor environmental measurement using our developed CO2-concentration meters, a questionnaire survey on students’ feeling of being hot or cold (i.e., ‘thermal sensation’), and a comparison of energy consumption before and after the spread of COVID-19 infection in schools in Sapporo, Japan, a cold-climate area. The results indicate that (1) more than 70% of the students participated in window ventilation by the CO2 meter, and (2) a relatively good indoor environment was maintained through the efforts of teachers and students. However, we also found that (1) 90% of the students felt hot in summer and (2) 40% felt cold in winter, (3) energy efficiency worsened by 7% due to increased ventilation, and (4) air quality was not as clean as desired during the coldest months of the year. Therefore, investment in insulation and air conditioning systems for school buildings is needed.
  • Wataru Umishio, Naoki Kagi, Ryo Asaoka, Motoya Hayashi, Takao Sawachi, Takahiro Ueno
    Indoor Air 32 (1) 0905-6947 2022/01 
    The coronavirus disease 2019 (COVID-19) pandemic has drastically changed work styles and environments. Given the coexistence of work in the office and work from home (WFH) in the future, studies are needed to identify ways to increase productivity when working in both places. We conducted a questionnaire survey and environment measurements of 916 workers in 22 offices across 2 weeks in November–December 2020 in Japan. While average workdays at the offices decreased from 4.9 to 3.9 days/week, those at homes increased from 0.1 to 1.1 days/week due to COVID-19, indicating an increase in the relative importance of WFH. Compared to the office, the satisfaction rate was lower for lighting, spatial, and information technology (IT) environments, but higher for thermal, air, and sound environments at home. Although it was easier to concentrate on work and to refresh at home, workers experienced challenges associated with business communication from home. Meanwhile, in the office, satisfaction with COVID-19 countermeasures was significantly associated with work productivity. Furthermore, lower PM2.5 concentration was associated with greater satisfaction with COVID-19 countermeasures, indicating that reducing PM2.5 may increase satisfaction with COVID-19 countermeasures and work productivity. We expect these findings will help improve work productivity in the New Normal era.
  • 室内空気中SVOC(準揮発性有機化合物)濃度の実態調査
    金 勲, 稲葉 洋平, 戸次 加奈江, 東 賢一, 林 基哉, 荒木 敦子, アイツバマイ ゆふ, 篠原 直秀, 欅田 尚樹
    室内環境学会学術大会講演要旨集 (一社)室内環境学会 2021年 104 - 105 2021/12
  • Junichiro Matsunaga, Koki Kikuta, Hideki Hirakawa, Keita Mizuno, Masaki Tajima, Motoya Hayashi, Akira Fukushima
    Energies 14 (22) 7651 - 7651 2021/11/16 [Refereed][Not invited]
     
    In this paper, the authors examined the technology to maximize the use of renewable energy. Passive ventilation systems are expected to reduce the energy consumption of the fan and the maintenance burden. In addition, the wall-mounted solar air heater can supply thermal energy without using any energy at all. Therefore, this paper presents a “passive ventilation system with a solar air heater” that combines a passive ventilation system with the solar air heater to preheat the air. This system can reduce the ventilation load. To evaluate the solar air heater performance in a real environment, we developed a simulation for calculating the heat collection capacity of the solar air heater, and then the system was implemented in a real building for verification. The simulation performs hourly unsteady calculations, allowing for accurate evaluation of the annual simulation. Based on the measurement results, the effects of heating load reduction and prediction methods are presented. The solar air heater reduced the monthly ventilation load by up to 50% or more, and by at least 15%. It was also confirmed that there was a high correlation between the actual measurements and the simulation results.
  • Takashi Kurabuchi, U. Yanagi, Masayuki Ogata, Masayuki Otsuka, Naoki Kagi, Yoshihide Yamamoto, Motoya Hayashi, Shinichi Tanabe
    JAPAN ARCHITECTURAL REVIEW 2475-8876 2021/07/02 [Refereed]
  • Mai HASEGAWA, Taro MORI, Hirofumi HAYAMA, Motoya HAYASHI
    Journal of Environmental Engineering (Transactions of AIJ) 86 (783) 557 - 566 1348-0685 2021/05/30 [Refereed]
  • Kenichi Azuma, U Yanagi, Naoki Kagi, Hoon Kim, Masayuki Ogata, Motoya Hayashi
    Environmental health and preventive medicine 25 (1) 66 - 66 2020/11/03 [Refereed]
     
    The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a new zoonotic agent that emerged in December 2019, causes coronavirus disease 2019 (COVID-19). This infection can be spread by asymptomatic, presymptomatic, and symptomatic carriers. SARS-CoV-2 spreads primarily via respiratory droplets during close person-to-person contact in a closed space, especially a building. This article summarizes the environmental factors involved in SARS-CoV-2 transmission, including a strategy to prevent SARS-CoV-2 transmission in a building environment. SARS-CoV-2 can persist on surfaces of fomites for at least 3 days depending on the conditions. If SARS-CoV-2 is aerosolized intentionally, it is stable for at least several hours. SARS-CoV-2 is inactivated rapidly on surfaces with sunlight. Close-contact aerosol transmission through smaller aerosolized particles is likely to be combined with respiratory droplets and contact transmission in a confined, crowded, and poorly ventilated indoor environment, as suggested by some cluster cases. Although evidence of the effect of aerosol transmission is limited and uncertainty remains, adequate preventive measures to control indoor environmental quality are required, based on a precautionary approach, because COVID-19 has caused serious global damages to public health, community, and the social economy. The expert panel for COVID-19 in Japan has focused on the "3 Cs," namely, "closed spaces with poor ventilation," "crowded spaces with many people," and "close contact." In addition, the Ministry of Health, Labour and Welfare of Japan has been recommending adequate ventilation in all closed spaces in accordance with the existing standards of the Law for Maintenance of Sanitation in Buildings as one of the initial political actions to prevent the spread of COVID-19. However, specific standards for indoor environmental quality control have not been recommended and many scientific uncertainties remain regarding the infection dynamics and mode of SARS-CoV-2 transmission in closed indoor spaces. Further research and evaluation are required regarding the effect and role of indoor environmental quality control, especially ventilation.
  • Motoya Hayashi, U Yanagi, Kenichi Azuma, Naoki Kagi, Masayuki Ogata, Shoichi Morimoto, Hirofumi Hayama, Taro Mori, Koki Kikuta, Shin‐ichi Tanabe, Takashi Kurabuchi, Hiromi Yamada, Kenichi Kobayashi, Hoon Kim, Noriko Kaihara
    JAPAN ARCHITECTURAL REVIEW 3 (4) 423 - 434 2475-8876 2020/08/22 [Refereed][Not invited]
     
    Information on air-conditioning and ventilation has been continuously disseminated in response to the Japanese Government's announcement of the need for appropriate ventilation measures against the new coronavirus disease (COVID-19), and the issuing of an emergency presidential discourse by the presidents of Engineering Societies. In this paper, we add to the information the latest knowledge on the behavior of SARS-CoV-2 in air, describe its diffusion characteristics in the built environment, and summarize the effects of temperature and humidity on the virus. Then we recommend varying approaches of air-conditioning control for facility type.
  • Impact of climate and ambient air pollution on the epidemic growth during COVID-19 outbreak in Japan
    Kenichi Azuma a, Naoki Kagi, Hoon Kim, Motoya Hayashi
    Environmental Research 2020/08/12 [Refereed][Not invited]
  • 林 基哉, 小林 健一, 金 勲, 開原 典子
    保健医療科学 69 (1) 63 - 72 1347-6459 2020/02 [Refereed][Invited]
     
    建築物衛生法(LEHB)の制定から50年を経て,建物の衛生が再び注目されている.1970年代には,LEHBによってシックビルディングシンドロームを予防できると考えられていたが,LEHBの基準に対する空気環境の不適合率は,この20年間増加している.最近の研究では,オフィスでのシックビルディング症候群の発生率は低くないことが示された.この不適合率の要因の1つは,1990年代以降の建物の省エネルギー対策のためであり,この傾向は,2017年に建物のエネルギー効率化が義務付けられたため,今後も続くと考えられている.建物衛生を考慮しつつ環境負荷を軽減するには,建築衛生の実態把握と課題の抽出が必要である.本稿では,LEHBと,日本の建物における環境衛生管理,室内空気環境,保健所による監視指導,建物衛生向上のための課題に関する最近の研究の結果を紹介する.(著者抄録)
  • Effects of the total floor area of an air-conditioned office building on building-related symptoms: Characteristics of winter and summer
    Kenichi Azuma, Naoki Kagi, U. Yanagi, Hoon Kim, Kenichi Hasegawa, Dai Shimazaki, Noriko Kaihara, Naoki Kunugita, Motoya Hayashi, Kenichi Kobayashi, Haruki Osawa
    16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020 2020
  • Kaihara Noriko
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2020.8 289 - 292 1880-3806 2020 
    これまで測定した事務所ビル約40件の夏期と冬期の温湿度の結果から、建築物衛生法によって管理されない建物でも、温度については夏期および冬期ともに概ね基準に近い状況で良好に管理されていることが示されている。しかしながら、相対湿度については冬期に基準を下回りその管理と運用に課題がある。本報では、さらに事務所ビル約20件の測定を追加し、その結果から、これまでと同様の温湿度の傾向と管理上の課題が依然としてあることを示した。
  • Nakano Junta
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2020.8 297 - 300 1880-3806 2020 
    全国の事務所建築物27件、測定点104点の温熱環境夏季および冬季に調査した。冬季の相対湿度を除けば、すべての測定点で概ね衛生管理基準を満たしていた。同じ環境をISO17772-1で評価したところ、IV評価および不適合が77%であり、最も高いI評価となったのは3%のみであった。個別の評価項目では、PMV低くなる傾向にあった。季節ごとに一律の着衣量を仮定したが、カテゴリ評価の閾値が比較的狭い範囲内にあるため、適切な着衣量の評価が重要であることがわかった。
  • Kim Hoon
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2020.8 293 - 296 1880-3806 2020 
    特定建築物及び中小規模建築24件を対象に、2019年度の冷暖房期に行った温度・湿度・CO2の2週間の連続測定からCO2濃度に関する結果を報告する。平均値としては1000ppmを超える建物は2割程度であったが、1回でも1000ppmを超える割合はほぼ7割あった。また、昨年度とは異なり期間中ずっと1000ppmを下回らない、3000ppmを超える高濃度を示すなど、著しく悪い環境にある物件はなかった。
  • Hayashi Motoya
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2020.8 285 - 288 1880-3806 2020 
    The indoor air environment was analyzed using the measurement data in 42 office buildings. The nonconformity rates of CO2 concentrations were high in winter and summer and those of humidity in winter. One factor in causing the nonconformity rates in semi-large and little buildings with separate air-conditioners is that ventilation and humidification are not well controlled there.
  • 【建築物衛生法制定50周年に当たって(1)】特定建築物における空気環境不適率の実態
    林 基哉, 金 勲, 開原 典子, 小林 健一, 鍵 直樹, 柳 宇, 東 賢一
    空気清浄 (公社)日本空気清浄協会 57 (5) 14 - 23 0023-5032 2020/01 [Refereed][Invited]
  • 建築物衛生法とISO基準による国内事務所建築の室内温熱環境評価の比較
    中野 淳太, 林 基哉, 小林 健一, 金 勲, 開原 典子, 柳 宇, 鍵 直樹, 東 賢一, 長谷川 兼一, 李 時桓
    室内環境学会学術大会講演要旨集 (一社)室内環境学会 2019年 394 - 395 2019/12
  • Motoya Hayashi, Hoon Kim, Yoshinori Honma, Junichiro Matsunaga
    E3S Web of Conferences 111 2267-1242 2019/08/13 
    In order to retain good indoor air quality through the year in detached houses with passive ventilation systems, the authors investigated a mechanical control air-supply method. Firstly, indoor environments in houses with passive ventilation systems with thermal dampers, were examined using a simulation program (Fresh). Secondly, a passive ventilation system with a thermal damper, an under-floor-heating system with a heat pump and were installed in an airtight house at Maebashi in Japan and measurements on its ventilation characteristics and indoor air quality were made. The simulation results showed that if the thermal damper is well tuned, this mechanically controlled air-supply opening keeps ventilation rates adequate through the year especially in airtight houses. The measurement results showed that the ventilation rates were kept above the required level through the year and the TVOC concentration decreases from 3000 to 200 μg/m3 in 5 months after the construction.
  • HAYASHI Motoya, BANDO Michiko, KOBAYASHI Kenichi, OSAWA Haruki, HONMA Yoshinori, YAN Shuang, KIKUTA Koki, HAYAMA Hirofumi, KAYO Genku, SUZUKI Nobue, KAIHARA Noriko, KIM Hoon
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 84 (761) 699 - 708 1348-0685 2019/07 [Refereed][Not invited]
     

     The aim of this study is to verify the annual characteristics of indoor environments in facilities for the elderly in cold regions. The temperatures, humidity and CO2 concentrations were measured in rooms and common spaces of 4 facilities for the elderly in Finland Espoo and 4 facilities for the elderly in Hokkaido Sapporo through a year. At first, the daily characteristics and the annual characteristics of indoor environments were analyzed. Secondly, the required humidification rate to control the indoor relative humidity to meet 40RH% (SEHMB: Standard for Environment and Health Management of a Building) were calculated using the results of the long-term measurements. The required humidification rates on condition that carbon dioxide concentrations are same as the measured concentrations and the rate on condition that the concentration controlled to 800ppm were calculated and the results of Finnish facilities and those of Hokkaido's facilities were compared. Thirdly, the energy loads for ventilation and humidification and the influenza concentrations were calculated with these conditions on ventilation. The results showed the followings.

     1. In winter, the outdoor temperatures of Finnish facilities are not so different from those of Hokkaido's facilities. However in mild or cooling seasons, the outdoor temperatures and absolute humidity are higher in Hokkaido than in Finland.

     2. Temperatures are well controlled in winter by floor heating systems in both Finnish facilities and Hokkaido's facilities.

     3. Even if the portable humidifiers were used in Hokkaido's facilities, the humidity is lower than the standard 40RH% .The indoor humidity is lower in Finnish facilities and the indoor absolute humidity is same as the outdoor in Finnish facilities where humidifiers are not used at all.

     4. In summer, the absolute humidity decreases in Hokkaido's facilities where cooling systems were used in the common spaces. However the absolute humidity did not decrease in Finnish facilities.

     5. The concentrations of carbon dioxide were enough lower than the SEHMB 1000ppm in all facilities. The concentrations change with the dwellers behaviors especially in Hokkaido's facilities where they open windows and operate ventilation fan in order to control smell and risk of influenza infection.

     6. Because the ventilation rate are kept higher in Finish facilities, the risk of influenza infection is lower in Finish facilities than in Hokkaido's facilities.

     7. Because heat recovery systems are used in Finish facilities, the energy load of humidification and ventilation is kept lower in Finish facilities.

     These results showed that it is necessary to control both ventilation and humidification considering energy loads and influenza infection risks.

  • 湿度変化における高齢者の心理反応
    開原 典子, 林 基哉
    日本臨床環境医学会総会プログラム・抄録集 日本臨床環境医学会 28回 58 - 58 2019/06
  • 建築物衛生法の特定建築物における空気環境の不適率(その1) 空気衛生環境基準の不適率の現状
    金 勲, 林 基哉, 開原 典子, 小林 健一, 鍵 直樹, 柳 宇, 東 賢一
    日本臨床環境医学会総会プログラム・抄録集 日本臨床環境医学会 28回 63 - 63 2019/06
  • 建築物衛生法の特定建築物における空気環境の不適率(その2) 室内二酸化炭素濃度の不適率の要因分析
    林 基哉, 金 勲, 開原 典子, 小林 健一, 鍵 直樹, 柳 宇, 東 賢一
    日本臨床環境医学会総会プログラム・抄録集 日本臨床環境医学会 28回 63 - 63 2019/06
  • 開原 典子, 金 勲, 林 基哉, 小林 健一, 柳 宇, 鍵 直樹, 東 賢一, 長谷川 兼一, 中野 淳太, 李 時桓
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2019.7 49 - 52 1880-3806 2019 
    我国の建築物の衛生環境は、様々な要因により変化しており、対策が急務となっている。また、建築物衛生法によって管理されない建物の室内環境も知見整備として、実態を把握する必要がある。本報では、約40件の事務所ビルの夏期と冬期の調査結果より、温度は概ね基準に近い状況にあることを示した。加えて、相対湿度は、冬期に殆どの建物で基準を下回っており、その管理と運用に課題があることを示した。
  • 中野 淳太, 林 基哉, 小林 健一, 金 勲, 開原 典子, 柳 宇, 鍵 直樹, 東 賢一, 長谷川 兼一, 李 時桓
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2019.7 61 - 64 1880-3806 2019 
    建築物衛生法の管理基準は、室内全体を均一な環境で維持することが前提となっている。省エネと快適性の両立を目指した新たな空調方式が増えていく中、従来の衛生管理基準では温熱環境を適切に評価できない可能性がある。そこで、本研究では建築物衛生法とASHRAE55の2つの手法による実測調査を行った。評価には衛生管理基準とISO7730のカテゴリ評価を用い、多様な建物規模、立地、季節、空調方式等が評価結果に与える影響を分析した。
  • 柳 宇, 鍵 直樹, 金 勲, 林 基哉, 小林 健一, 開原 典子, 東 賢一, 長谷川 兼一, 中野 淳太, 李 時桓
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2019.7 57 - 60 1880-3806 2019 
    本報では中小規模ビルの室内空気環境の実態ついて検討を行った。その結果，本研究の主な調査対象である温湿度とCO2濃度に限って言えば，中小規模ビルと特定建築物の間に大きな差が見られず，建築物を統一の基準で管理可能であること，人為的に制御可能であること，および建築物全体に及ぶことから，仮に特定建築物の延べ床面積の下限を3000m^2から2000m^2までに下げたとしても，対応が可能であることが示唆された。
  • 林 基哉, 小林 健一, 金 勲, 開原 典子, 柳 宇, 鍵 直樹, 東 賢一, 長谷川 兼一, 中野 淳太, 李 時桓
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2019.7 45 - 48 1880-3806 2019 
    事務所の衛生環境の実態を把握するため特定建築物の行政報告例の分析、事務所の空気環境の調査を行う。本報告では空気環境不適率の上昇要因を明らかにするため、行政報告例不適率の実態を把握し、不適率上昇の要因に関する統計解析を行った。特定建築物数が増加する中、湿度、温度、二酸化炭素濃度の不適率が1999年以降上昇している。また、法定検査を利用した報告徴取が増加している。湿度、温度、ＣＯ２濃度の不適率上昇の要因として報告徴取数の増加が挙げられ、これらの不適率は、北の自治体ほど高い傾向がある。
  • 金 勲, 林 基哉, 小林 健一, 開原 典子, 柳 宇, 鍵 直樹, 東 賢一, 長谷川 兼一, 中野 淳太, 李 時桓
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2019.7 53 - 56 1880-3806 2019 
    特定建築物におけるCO2濃度の不適率増加は、換気不足と空気衛生環境の悪化に繋がるリスクを内在している。特定建築物は法的根拠から環境衛生が管理されているが、中小規模建築に関しては室内環境や衛生管理に関する情報が皆無の状態であり、その実態把握が急務となっている。 本研究では、中小規模建築を中心に全国42件のオフィス用建物に対する冷暖房期におけるCO2濃度を連続測定した結果を報告する。 結果、平均濃度で1000ppmを超える建物は、夏期36%、冬期33%であり、1回でも1000ppmを超えた建物は夏期67%、冬期69%であった。
  • HAYASHI Motoya, KIM Hoon, KAIHARA Noriko, KOBAYASHI Kenichi, KAGI Naoki, YANAGI U, AZUMA Kenichi
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 84 (765) 1011 - 1018 1348-0685 2019 [Refereed][Not invited]
     

     The state of the increase in the nonconformity rates of air environment in specific buildings was investigated using local government survey reports. The factors in the increase of carbon dioxide concentration were analyzed in consideration of the increase of ambient concentration, the characteristics of indoor concentrations and the characteristics of the government reports. The results were as follows.

     1 The nonconformity rates of humidity, temperature and carbon dioxide concentration have increased with the number of specific buildings since 1999. And reports made by the owners of specific buildings are substituted for inspections by government officials in most prefectures.

     2 One of the factors in the increase of nonconformity rates of temperature, humidity and carbon dioxide concentration is the increase of reports using measurement data by building maintenance suppliers. The nonconformity rates of humidity and carbon dioxide concentration were higher in northern prefectures.

     3 The frequency of indoor carbon dioxide concentration in specific buildings in Tokyo was similar to that in Osaka. The frequency distribution of the differences between indoor concentration and outdoor concentration in Tokyo follows Weibull frequency distribution.

     4 The ambient concentration of carbon dioxide has increased especially in urban areas. The increase of ambient concentration is thought to increase the indoor concentrations in specific buildings.

     5 The nonconformity rates of carbon dioxide concentration depend on not only ambient concentration but also the rates of ventilation reduction and survey methods by governments. The nonconformity rates were calculated using an equation composed on the basis of Weibull frequency. The coefficients of these factors were calculated using the equation and the survey data on all Japan.

     6 The increase of ambient concentration made the nonconformity rate of indoor concentration 3.1% higher and ventilation reduction made it 7.2% higher and the change of survey method made it 11.6% higher in these nineteen years.

     These results showed that the increase of nonconformity rates depends on several factors. Therefore it is necessary to design integrated countermeasures in order to decrease these nonconformity rates.

  • Effects of thermal conditions and carbon dioxide concentration on building-related symptoms: a longitudinal study in air-conditioned office buildings
    Azuma K, Kagi N, Yanagi U, Kim H, Kaihara N, Hayashi M, Osawa H
    Proceedings of the 15th International Conference on Indoor Air Quality and Climate ID106 6 pages  2018/07 [Refereed][Not invited]
  • KIM Hoon, YANAGI U, KAGI Naoki, AZUMA Kenichi, HAYASHI Motoya, OSAWA Haruki
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 83 (749) 581 - 588 1348-0685 2018/07 [Refereed][Not invited]
     
     Endotoxin (ET) is the outer membrane component of gram-negative bacteria and secreted by destruction of bacterial cell. It is ubiquitous in living environment and elicits strong immune responses such as inflammation, fever, septic shock etc. when get into the blood. It also known as lipopolysaccharides (LPS) and lipoglycans, has been ascribed as allergen on the hygiene hypothesis.
     Since most of the eubacteria are gram-negative and ET is also the specific substance produced from gram-negative bacteria, it is reasonable premise that ET concentration can serve as a representative index to bacterial pollution.

     The aim of this study is to prove the benefit of measuring ET as a substitute for the traditional cultural method to investigate the bacterial pollution in indoor air.

     The followings were reported in this article.
     1) Interference tests to gelatinization of lysate reagent in order to select the air sampling filter and preservation method
     2) Field survey results on airborne ET and bacteria concentrations in indoor air at office buildings and elderly facilities
     3) Correlation analysis between ET and bacteria concentration

     As a result, it was obvious that ET concentration tended to be high in elderly facilities than in offices, and the same tendency was not observed from airborne bacterial concentrations measured with the cultural method. In elderly facilities, there were several rooms that indicated evidently higher ET concentrations and a few of them observed repeatedly in the winter seemed to be associated with domestic humidifiers and/or a drop in ventilation amount.
     I/O ratios of bacterial concentrations in offices differed significantly with those of ET as “I/O ratio≧1” was observed more frequently, while were not marked by a difference in elderly facilities. Numerical values of I/O ratios of ET concentrations had a tendency to fall behind those of bacterial concentrations.
     “Outdoor air” of elderly facilities and “indoor air” of offices revealed the moderate correlation between ET and bacterial concentrations. Meanwhile, the correlation between the two methods was derived from all data of elderly facilities. For whole values measured, however, the moderate correlation was found only in outdoor air. Though the moderate correlations could be obtained partially between ET and bacterial concentrations, the definite correlation could not be obtained as a whole in all the measurement results.
     Determination method of ET has a high performance and reliability in terms of quantitative accuracy and reproducibility. Even if there are several limitations to be resolved, determining ET might be useful to investigate the bacterial contamination from the viewpoint of practical use in field survey and analysis convenience.

     Further studies should be also performed to comprehensively understand the correlation between airborne ET and bacterial concentrations, and one example for possible consideration might be a genetic sequencing method.
  • Indoor Environment and Influenza Air-Borne Infection Risks in Facilities for the Elderly in Japan and Finland
    Motoya Hayashi, Noriko Kaihara, Hoon Kim, Shuang Yan, Yoshinori Honma, Koki Kikuta, Genku Kayo, Nobue Suzuki
    Roomvent & Ventilation 2018 2018/06 [Refereed][Not invited]
  • HAYASHI Motoya, KIM Hoon, TAKEKUMA Mikiko, OSAWA Haruki
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 83 (747) 481 - 490 1348-0685 2018/05 [Refereed][Not invited]
     
     The aim of this study is to keep indoor air quality well considering the infiltration of chemicals from concealed spaces in detached houses. The building standard law was revised to prevent sick house syndrome in 2003. The use of continuous ventilation systems, the prohibition of chlorpyrifos, the control of the emission rate of formaldehyde and the countermeasure toward the infiltration from the concealed spaces like the ceiling space have been regulated after this revision.
     In this study, the infiltration characteristics of VOCs from the concealed spaces, were investigated using the measurement data of 8 new wooden houses with exhaust ventilation systems or exhaust and supply ventilation systems in Saitama prefecture. The structurer and building materials of these houses are general in Japan. The structures of these houses were wooden post and beam structures. The floor is made with plywood and flooring. The wall is made with plasterboard and vinyl cloth/plaster finishing. The ceiling is also made with plasterboard and vinyl cloth/plaster finishing. The results showed the followings.

     1. The indoor emission rates and the infiltration rates from the concealed spaces can be calculated from airtight levels of houses, ventilation rates, VOCs concentrations when the ventilation system is used and when the air is exhausted.
     2. The equivalent leakage area of houses were 0.5～3.0 (cm2/m2). The decompression levels were -5.3～6.0 (Pa) when the ventilation systems were used and 9.7～60.3 (Pa) when the air is exhausted.
     3. The indoor VOCs concentrations when the air is exhausted were higher than the VOCs concentrations when the ventilation systems are used in most houses.
     4. The infiltration rates were significantly higher than the indoor emission rates not only in houses with the exhaust ventilation systems but also in houses with the exhaust and supply ventilation systems.
     5. The indoor VOCs concentrations increases with the indoor decompression level.

     These studies showed that the indoor VOCs concentrations depend on the infiltration rates from concealed spaces in new houses in Japan. Therefore, the countermeasure toward the infiltration from the concealed spaces and the control of air quality in the concealed spaces, are still important.
  • KIM Hoon, BANDO Michiko, HAYASHI Motoya, OSAWA Haruki
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 83 (746) 393 - 401 1348-0685 2018/04 [Refereed][Not invited]
     
     It is critical to understand the facility managing system and the actual condition of indoor environment in order to improve quality of life such as health and comfort, and to prevent infectious diseases in care welfare facilities for the elderly. Although the related facilities are in high demand, the actual situation of indoor environment has not been clear since there have not been a regulation and control law at all. Moreover, there are many residents who need a high degree of nursing care in those facilities and inevitably odours arisen out of excretion help and human body have been a persistent problem.
     The mid and long term goal of our research is to suggest the proper planning and operational management to improve the indoor air environment in those facilities. The field surveys and the questionnaire on special nursing homes all over the country have been conducted to clarify the actual condition and the maintenance of indoor environment such as temperature, humidity, air quality and ventilation situation.
     In this study to clarify the odour environment and problems, the questionnaire items related to the odour environment were extracted and analyzed statistically.

     The followings were reported in this article.
     1) Questionnaire results on odour perceptions and measures for odour control
     2) Bivariate analysis between odour perceptions and facility environmental / behavioral factors
     3) Elucidation of influential factors on odour environment by multivariate analysis

     As a result, it was obvious that the feces and body odour perceived at rooms and corridors were the major problem. Although a large majority of respondents reported the discomfort come from the feces odour, most of replies to acceptability were on neutral and acceptable side.
     The facilities taking a measure for odour were likely to declare a higher degree of discomfort. It was reasonable, however, to interpret that the odour measures such as ventilation, fragrance and deodorant did not work as factors increasing the degree of discomfort, but rather that those were desired in the facilities with poor odour environment. The same explanation could also be made for odour intensity.
     The bivariate analysis derived 19 variables as significant effect factors for hedonic tone, 18 variables for odour intensity and 11 variables for acceptability. Furthermore, the multivariate analysis derived the four factors of nursing care type, odorous bedroom, feces odour and ventilation by fan as the decisive candidates for perceived air quality. Conclusively feces odour and odorous bedroom were defined as the most decisive explanatory variables that could simultaneously explain all three objective variables of odour perceptions.
     To control the odour environment indoor can lead to not only improving the working environment for staffs but also reducing the health risk of residents since it is also closely related to ventilation and general indoor air quality.
  • KAIHARA Noriko, HAYAMA Hirofumi, HAYASHI Motoya, KIM Hoon, OSAWA Haruki, BANDO Michiko, KOBAYASHI Kenichi, HONMA Yoshinori, YAN Shuang, KIKUTA Koki
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 83 (745) 267 - 276 1348-0685 2018/03 [Refereed][Not invited]
     
     In this paper, to better understand indoor humidity in cold regions where it is more difficult to maintain indoor humidity in winter and to obtain basic information for improving indoor humidity, we evaluated thermal environments from measurement data in special nursing homes for the elderly of Miyagi and Hokkaido, and estimated the lack of humidification from an analysis of ventilation amount in these cold regions.

     Measured of indoor temperature, humidity and CO2 concentration showed the following.
     1) Although there were differences in the number of years of construction and the type of facility, it was shown that the indoor temperature was almost the same, the relative humidity was about 20 to 30%, which was a low humidity environment, and the CO2 concentration was less than 1,000 ppm in the facilities investigated. In addition, it was shown that the average value of the indoor temperature, humidity and CO2 concentration of the common space and the rooms were the same for the same building and the same floor.
     2) The indoor temperature of the common space and rooms in the facilities were controlled relatively stably, and the indoor temperature fluctuation during the three months in winter tends to be smaller in facilities in Hokkaido Prefecture than in facilities in Miyagi Prefecture.
     3) The indoor humidity ratio in the common space and rooms in the facilities was low and the indoor humidity ratio also fluctuated up and down following the change in humidity ratio of the outside air, showing that the indoor humidity ratio is strongly affected by outside air.
     4) Indoor temperature and humidity (temperature, relative humidity and humidity ratio) and CO2 concentration showed a tendency to fluctuate with the user's daily rhythm spent in the common space during the day and in the rooms at night.

     An analysis of the ventilation amount and required humidification amount showed the following.
     1) It was shown that there was diversity in ventilation patterns, and ventilation modes in each facility, such as by opening windows, or opening and shutting the living room door, were closely related to building performance. Also, it was shown that the colder the region, the more the ventilation amount tended to increase.
     2) It was shown that there was a need to introduce an industrial humidifier at an early stage in examination facility construction specifications so that indoor relative humidity could be more than 40%, because the humidification produced by portable humidifiers was insufficient.
     3) It was shown that if CO2 concentration were controlled to 1,000ppm, the lack of humidification could be reduced by more than 50%.
  • 金 勲, 柳 宇, 鍵 直樹, 東 賢一, 長谷川 兼一, 林 基哉, 大澤 元毅, 志摩 輝治
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2018.7 1 - 4 1880-3806 2018 
    普及が急速に進んでいる家庭用超音波式加湿器による室内空気の微生物汚染が懸念されることから、微生物汚染の経時変化を実験を通じて調べた。 加湿空気と加湿水中ET濃度は3日目までは緩やかな上昇を示すが、4〜5日目から指数関数的に急増し、急速な汚染が進行することが観察された。加湿器の洗浄や加湿水交換を毎日行っても細菌濃度が上昇することがあり、これはET及び浮遊細菌の測定結果から確認できた。
  • 鍵 直樹, 東 賢一, 金 勲, 柳 宇, 長谷川 兼一, 林 基哉, 開原 典子, 大澤 元毅
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2018.7 109 - 112 1880-3806 2018 
    揮発性有機化合物（VOC）の一つである2-エチル-1-ヘキサノール（2E1H）は，塩ビ建材や接着剤，塗料などの建材から発生し，健康被害をもたらすことが指摘されている。建材からの2E1H発生には，一次発生と二次発生が知られており，環境湿度との関係が中毛腐れる。本研究では，空気中や下地などから建材中に供給される水分に着目し，建材発生実験，実大空間実験によって2E1Hの発生特性を明らかにすることを目的とする。
  • YAMADA Hiromi, HAYASHI Motoya, TANABE Shin-ichi, OSAWA Haruki, HASEGAWA Ken-ichi, HONMA Yoshinori
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 82 (740) 863 - 871 1348-0685 2017/10 [Refereed][Not invited]
     
     Currently, most detached houses in Japan are airtight wooden structures that have a high risk of vapor condensation in the wall cavities. Vapor condensation in insulation material is a primary contributor to mold growth in wall cavities. Indoor mold concentrations depend not only on indoor mold sources, but also on infiltration from concealed spaces, such as beam space and crawl space. The air pollutants infiltrate houses from these spaces by indoor decompression via the ventilation system, and mold that infiltrates through the glass wool used for heat insulation may remain and grow on the material. In order to measure the mold concentrations in glass wool, a new method is required for air cavity sampling. A method using a Teflon tube inserted into thin spaces in wall cavities or crawl spaces is useful for accomplishing this task. The surface of Teflon is very smooth, but mold adheres to it because of friction or static electricity. The objectives of the present investigation were to develop a method to measure mold concentration using Teflon tubes and to characterize the movement of mold spores between heat insulators.
     The following conclusions were obtained from this study:
     (1) The mean rates of mold retention in 0.3, 0.5, and 1.0 m Teflon tubes, which were washed three times with sterilized physiological salt solution, were 5%, 21%, and 37%, respectively. This indicated that retention rates increase with increases in Teflon tube length, and it was concluded that a useful sampling method for concealed spaces must use a Teflon tube that is about 0.3 m long, given the retention rate. Data from inter-laboratory testing indicated that a Teflon tube that is 1 m long is unsuitable for this sampling method.
     (2) The amount of mold spores in the glass wool heat insulator decreased the more it was washed using sterilized physiological salt solution to clarify the movement of mold spores. After the third wash, the desorption rate of mold spores in the glass wool was about 85%, showing that three rounds of washing were required to measure the mold movement.
     (3) Measurement of the movement of mold spores inside the heat insulator showed that the quantity of mold spores adhering to the heat insulator decreases exponentially with an increase in length of the Teflon tubes.
     (4) In this range of the wind velocity, the movement of mold spores between insulators through the heat insulator is not significantly influenced by wind in the small chamber.
     (5) The experimental results indicate that the quantity of mold spores displaced from the heat insulator by air transportation was not significant.
  • Hoon Kim, Motoya Hayashi, Haruki Osawa, Noriko Kaihara, Michiko Bando, Koki Kikuta, Hirofumi Hayama, Yoshinori Honma, U Yanagi
    Healthy Building 2017 (USB) 214  2017/07 [Refereed][Not invited]
  • KIM Hoon, BANDO Michiko, OSAWA Haruki, HAYASHI Motoya
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 82 (736) 589 - 589 1348-0685 2017/06 [Refereed][Not invited]
     
     Japan has been well on the way to an aging society and entered a super-aged society at 21.5 percent aging rate in 2007, and the facility demand for the elderly is increasing rapidly. More careful control of indoor environment is needed for the elderly, since the autonomous control ability, recuperative and immunological power of them are poorer than healthy people. It is critical to understand the facility managing system and the actual condition of indoor environment in order to improve quality of life such as health and comfort and to prevent infectious diseases in care welfare facilities for the elderly.
     Although the related facilities are in high demand, the actual situation of indoor environment has not been clear because there has not been a regulation and control law at all. Cross-sectional study utilizing the questionnaire survey on special nursing homes all over the country was conducted to clarify the management, maintenance and actual condition of indoor environment and building equipment in 2013.
     Survey results found that average floor area is 3000m2 or more, mean building age is 18 years and facilities of more than 30% have experienced extension and renovation work. While the facilities of conventional type (with multiple bed room) account for more than 60%, unit care type has been popular in facilities built after the 2000s and the hybrid type combined with conventional and unit care type is not also negligible due to consistent high demand for multiple bed room.
     As might be expected, area (climate) and facility age make a difference to HVAC equipment and this study also confirmed it. As the unit care type increases associating with government guidance, the installation of individual air conditioning equipment also expanded countrywide due to the benefits of initial and operating costs, energy conservation and high control performance. While about 60% of facilities have criteria for the air temperature, criteria for humidity and ventilation are in lower proportion. It is certain that facilities are much more taking care of infectious diseases and dryness since humidity and ventilation criteria are in higher ratio in winter season than in the others. Although they have obviously interests in air quality, hygrothermal environment and energy conservation, their recognition of countermeasure and execution seems not to be sufficient. In addition, there was a problem in knowledge and recognition of facility managers for air conditioning equipment, for example since a large difference was observed in the response rate concerning a central type of ventilation and a central HVAC system.
     In order to secure and maintain the favorable indoor environment and hygiene in the elderly facilities, it seems appropriate to remark that a professional administrator should be employed as a facility manager, and they should be educated and provided with the related knowledge and techniques.
  • 冬期の室内環境改善のための建築設備設計（特集 高齢者施設の室内環境）
    林 基哉
    空気清浄 32 (2) 66 - 71 2017/05 [Not refereed][Not invited]
  • A study on effective control of influenza infection considering energy saving in buildings
    Motoya Hayashi, Kenichi Kobayashi, Michiko Bando, Hoon Kim, Noriko Kaihara, Haruki Osawa
    Healthy Buildings Europe 2017 2017 
    Influenza air-borne infection depends basically on indoor humidity and ventilation rate. The authors proposed an index of influenza infection according to these factors, using the results of the experiments on survival rates of influenza viruses in air by G.J.Harper. This index is a ratio of indoor influenza concentration toward the generation rate of influenza viruses from a carrier in a space. The estimate made using this index showed that if the indoor absolute humidity is higher than a critical point, the required ventilation rate is low and the energy consumption for ventilation and humidification is also low. The indoor air environments of specific buildings were estimated using the data of inspections by health centres in Tokyo. The results were as follows. Although humidity is very low in the buildings, the index is low and the risk of infection is low. The reason is that the ventilation rate a person is very high. A case study on the optimization of ventilation rate and humidity, showed that reducing ventilation rate and retaining higher humidity have a good effect on the control of influenza infection and on energy saving.
  • 金 勲, 林 基哉, 大澤 元毅, 阪東 美智子
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2017.7 65 - 68 1880-3806 2017 
    全国の介護老人福祉施設（特別養護老人ホーム）を対象に温湿度・換気の管理状況、におい対策など空気環境の実態を把握する目的で行ったアンケート調査結果から、におい環境に関する項目を抽出し、詳細解析した結果を報告する。 多変量分析から快不快度、臭気強度、受容度の知覚空気質を説明出来る変数として、「施設タイップ、におう場所_居室、気になるにおい_糞便臭、におい対策_居室_換気扇」の4つが挙げられ、知覚空気質3項目を同時に説明できる変数として「糞便臭」と「居室のにおい」が最終的に認められた。
  • 水野 敬太, 菊田 弘輝, 福家 智大, 林 基哉, 金 勲
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2017.6 313 - 316 1880-3806 2017 
    パッシブ換気に関する外気負荷の削減方法として、再生可能エネルギー利用での給気予熱、デマンド換気(DCV)での風量調整が挙げられる。そこで、本研究では太陽熱集熱装置での給気予熱、湿度感知型換気口でのDCVを導入した超高性能パッシブ換気住宅の実態調査を行い、それらの効果を定量的に評価することを目的とする。
  • 開原 典子, 林 基哉, 大澤 元毅, 金 勲, 柳 宇, 東 賢一, 鍵 直樹
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan 公益社団法人 空気調和・衛生工学会 2017.7 81 - 84 1880-3806 2017 
    特定建築物における空気環境の不適率の上昇傾向の機序を明らかにするために、①特定建築物に関する行政報告データを用いた分析、②特定建築物の空気環境に関する自治体担当者への質問紙調査を実施した。行政報告データの分析結果から、調査数の増える2007年以降に、基準に適合しない建築物が増えていて、それらの建物は調査数の増えた自治体に多い。質問紙調査の結果から、自治体から得られる情報に差があること、自治体の担当者の判断にも差があることが示された。
  • Hayashi Motoya
    Journal of the National Institute of Public Health 国立保健医療科学院 66 (2) 101 - 101 1347-6459 2017 [Not refereed][Not invited]
  • 林 基哉
    空気清浄 : コンタミネーションコントロール 日本空気清浄協会 55 (1) 45 - 52 0023-5032 2017 [Not refereed][Invited]
  • Hayashi Motoya
    Journal of the National Institute of Public Health 国立保健医療科学院 66 (2) 163 - 171 1347-6459 2017 [Not refereed][Not invited]
     
    Former investigations on the indoor environment of facilities for the elderly showed that the indoor relative humidity is not satisfactory for the standard of Act on Maintenance of Sanitation in Buildings (40- 70RH%). It is important to keep humidity adequate in facilities for the elderly in order to control influenza infection. However, humidifiers are not installed in the air-conditioning system in most facilities. In order to keep humidity high, many portable humidifiers are used, but the humidity is very low. The main factor of this low humidity is thought to be high ventilation rates.
    With consideration in these characteristics of indoor environments in facilities for the elderly, the index of influenza air-borne infection risk is proposed using absolute humidity and ventilation rate a person. A method is proposed to improve indoor humidity considering relationships between energy consumption and influenza air-borne infection risk. The results of estimation on these investigated facilities showed that influenza air-borne infection risks depends on ventilation rate a person, because humidity is very low and the possibility of preventing influenza infection by high humidity is also low in all facilities.
    The results of studies on the improvement of indoor humidity using above estimation, highlighted the following guidelines. 1) It is necessary to reduce ventilation rate a person with the consideration of indoor pollution such as odor, and 2) It is necessary to insulate openings to prevent vapor condensation.
  • Asada Tomohiko, Miura Yoshikatsu, Bando Michiko, Hayashi Motoya, Fukuyama Hidenao
    Journal of the National Institute of Public Health 国立保健医療科学院 66 (4) 451 - 457 1347-6459 2017 [Not refereed][Not invited]
     

    Objectives: This paper considers the importance of interdisciplinary collaboration between medicine and engineering in the construction of sidewalks based on recent literature from Japan and overseas. Methods: First, it considers the effects of promoting the use of sidewalks, which is the prerequisite for their construction, from a medical (public health) perspective. Second, we present a chronological overview of sidewalks based on universal design followed by an explanation on the resolution of medical issues in the construction of sidewalks in the future by using engineering technologies from a professional and the users' perspective. Finally, this paper raises medical (neuroscience) issues beyond users' perspective and proposes solutions based on engineering technology for the future "deepening of universal design in sidewalk construction." Citing coincidence anticipation timing (CAT) performance for example, this paper provides a medical (neuroscientific) explanation for the need to prevent falls users are unaware of, thus proposing solutions using specific engineering technologies.

    Conclusions: In the future, there is a need to further enhance this type of universal design suitable for a super-aged society.

  • Endotoxin Concentration in House Dust and Indoor Air in Japan
    Kim H, Lim E, Yanagi U, Kagi N, Azuma K, Osawa H, Hayashi M
    Proceedings of the 14th International Conference on Indoor Air Quality and Climate ID457 2 pages  2016/07 [Refereed][Not invited]
  • HAYASHI Motoya, SUGAWARA Masanori, HONMA Yoshinori, KURABUCHI Takashi
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 81 (719) 93 - 93 1348-0685 2016/01 [Refereed][Not invited]
     
     One of the factors to influence the indoor air quality is dweller's habit of operating windows. An instrument to measure the open-width of sliding window was developed and the open-widths were measured in six detached houses through a year. The results are the followings.
     1. The open-width depends on the daily dweller's schedule and the indoor temperature.
     2. The open-width increases with the indoor temperature, but the time length of wind opening is short in the room with cooler.
     3. In the room which temperature is high, the room is cooled more frequently and the open-width becomes large when the window opens.
  • HAYASHI Motoya, OSAWA Haruki, HONMA Yoshinori
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 81 (727) 819 - 826 1348-0685 2016 [Refereed][Not invited]
     
     The aim of this study is to clarify the influences of pollutants infiltration from concealed spaces upon indoor air quality in detached houses. The annual changes of pollutant concentrations were calculated using three leakage networks of wooden structures (A: a highly airtight wooden 2x4 stud structure, B: an airtight post-and-beam structure and C: a common post-and-beam structurer). The simulation program “Fresh” was used. The simulation program is based on three methods: a dynamic thermal calculation method using successive integration by Dr. Aratani, a calculation method of ventilation networks using Newmark-beta by Hayashi and Dr. Enai and a calculation method of pollutant concentrations using the ventilation networks by Hayashi. The annual changes of concentrations of pollutants which generate in the concealed spaces (beam spaces and a crawl space) in models with two ventilation systems (an exhaust ventilation system and an exhaust and supply ventilation system) are calculated using the weather data of Tokyo. These simulation results were compared with the measured infiltration ratios from concealed spaces.
     The results are the followings:
     1. The pollutants move upward by temperature difference and wind pressure and the pollutants infiltrate to the indoor spaces from the concealed spaces.
     2. The influence of leakage networks and ventilation systems upon the concentrations of pollutants which generate in the concealed spaces, is not similar to the influence upon those of CO2 and CO which generate in the indoor spaces.
     3. The indoor concentrations of pollutants from concealed spaces (beam spaces and a crawl space), are high in the case of the airtight houses (the equivalent leakage area: 2.8 cm2/m2) and the highly airtight houses (the equivalent leakage area: 0.3 cm2/m2), especially in those with exhaust ventilation systems.
     4. The similar characteristics of indoor decompression by ventilation systems and infiltration from concealed spaces are seen both in the simulation results and the measurement results.
     These results showed that it is necessary to prevent the pollutant infiltration from the concealed spaces according to the building standards on the sick house syndrome enforced in 2003. And the results showed that indoor air quality depends on the airtightness of houses and the decompression by ventilation systems. It is necessary to control air quality in the concealed spaces and to design ventilation networks in consideration of infiltration.
  • HAYASHI Motoya, HONMA Yoshinori, HASEGAWA Kenichi, KIM Hoon
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 80 (716) 1013 - 1013 1348-0685 2015/10 [Refereed][Not invited]
     
     The aim of this study is to use the building environmental performance as a base of healthy life of victims after great east japan earthquake in 2011. The equivalent leakage areas of the houses for victims were investigated and an easy measurement method was developed to the airtight levels to be high in the houses. The results showed the followings.
     1. The equivalent leakage area varied in the houses and are not enough for the latest building code for energy saving in some cases under the high housing demand for the victims.
     2. An easy examination method using a fan in kitchen is useful to check the airtight levels in houses which equivalent leakage area is less than about 2.0 cm2/m2.
  • Yoshiyuki Inoue, Hirofumi Hayama, Taro Mori, Koki Kikuta, Motoya Hayashi, Noriyuki Toyohara
    6TH INTERNATIONAL BUILDING PHYSICS CONFERENCE (IBPC 2015) 78 2052 - 2057 1876-6102 2015 [Refereed][Not invited]
     
    Cooling effectiveness is one of the most important factors in evaluating the value of a datacenter. The datacenter taken up in this paper is located in a cold district in Japan. Outdoor air cooling helps us to cut the power consumption for cooling. This paper first assesses the efficiency of Ishikari datacenter measuring the temperatures in a building where the cooling air flowing. Second, the author will point out the recirculation through vent holes on a ceiling in the server room and describe the most efficient method for the operation. (C) 2015 The Authors. Published by Elsevier Ltd.
  • Hayashi Motoya, Honma Yoshinori, Hasegawa Kenichi
    JOURNAL OF THE HOUSING RESEARCH FOUNDATION "JUSOKEN" 一般財団法人 住総研 41 (0) 49 - 60 2187-8188 2015 [Refereed][Not invited]
     
    The aim of this study is to use the building environmental performance as a base of healthy life of victims after great east Japan earthquake in 2011. The environmental performances of the houses for victims were investigated using questionnaires and measurements. The results showed that the performance varied and are not enough for the latest building code for energy saving in some cases under the high housing demand. An easy measurement method using a fan in kitchen is proposed and the performance was checked. The method was expected to be a method to expand the airtight houses for victims.
  • KIM Hoon, HAYASHI Motoya, KAIHARA Noriko, OSAWA Haruki, BANDO Michiko
    Indoor Environment 一般社団法人 室内環境学会 18 (2) 77 - 87 1882-0395 2015 [Refereed][Not invited]
     
    Japan has been well on the way to an aging society and entered a super-aged society at 21.5 percent aging rate in 2007, and the facility demand for the elderly is increasing rapidly. The elderly need suitable environmental hygiene management from a viewpoint of protection against infectious diseases, since the autonomous control ability, recuperative and immunological power of them is poorer than healthy people. However, there is not a law concerning indoor environment in those facilities and still unknown part is large in the actual situation.
    This study conducted the winter survey on five facilities for two months to clarify the actual condition and the management of indoor environment such as air temperature, relative humidity and CO2 concentration (i.e. ventilation situation).
    As a result, air temperature and CO2 concentration had been generally well managed. Meanwhile, relative humidity in all facilities was below 40%RH which is recognized as a winter lowest standard. Moreover, CO2 concentrations showed that there was a significant difference in the amount of ventilation depending on facilities. Despite efforts of facilities for humidification, it was clear that they could not meet 40%RH of commonly accepted minimum standard for relative humidity in winter. Consequently it suggested that there was a problem in knowledge and recognition of facility managers for humidity and humidification, and the low humidity might come from not poor humidification but increase of outdoor air intake for ventilation. Ventilation rates estimated from the measured data and the theoretical amount of CO2 and moisture emitted from human body showed also that the humidification amount was not sufficient with respect to ventilation amount.
  • A field study on biological pollution and its environmental factors-mould and mite on the interior surface in winter and summer
    Haruki Osawa, Motoya Hayashi
    Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate 345 - 352 2014 
    The purpose of this study is to grasp the entire image of biological pollution in houses. A questionnaire about buildings, residents and living styles was used to investigate the countermeasures. Mite and mould were sampled from the interior surfaces by residents. The results showed that the mould density in winter was higher than that in summer, and it was higher at the corner of the floor and on the low-part of the wall. The mite density on the floor in winter was lower than that in summer. As regards building equipment and environment, the number of rooms, thermal insulation and vapour condensation on the wall influences both mould and mite. Room cleaning and the operation of ventilating systems were effective in decreasing mite.
  • A field study on biological pollution and its environmental factors-annual change of mould and mite in the indoor air and on interior surface
    Motoya Hayashi, Haruki Osawa
    Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate 221 - 228 2014 
    The aim of this study is to investigate environmental factors in causing the movement of mould and mite clear. The concentration of mould in the air, the amount of allergen in the dust on the floor were measured in about thirty houses in four seasons. The measurement results showed their movement in houses changes with seasons. Mould invades rooms from outside in mild seasons. It stays and grows in a house. They stay with dust on the floor even in winter. Mites on the floor increase or decrease with temperature. Mites increase the excrement of mites and Der. 1. Mites decrease with temperature and the body of mites and Der. 2 increase from summer to autumn. Dust is a factor in increasing mould on surface and the allergens. These results show that the basic countermeasures against biological pollution in houses: insulation, ventilation and cleaning are effective.
  • Dwellers’ habit of opening windows in detached houses in cold and hot-humid climate of Japan
    Motoya Hayashi, Yoshinori Honma, Masanori Sugawara
    Journal of Environmental Protection (Vol.5) 663 - 671 2014 [Refereed][Not invited]
  • Numerical Experiments on Indoor Air Qual-ity Considering Infiltration of Mould from Crawl Space
    Motoya Hayashi, Haruki Osawa, Kenichi Hasegawa, Yoshinori Honma
    Journal of Environmental Protection (Vol.5) 916 - 923 2014 [Refereed][Not invited]
  • Infiltration of Mould from Crawl Space under the Prefabricated Bathroom
    Motoya Hayashi, Haruki Osawa, Kenichi Hasegawa, Yoshinori Honma, Hiromi Yamada
    Journal of Environmental Protection (Vol.5) 837 - 846 2014 [Refereed][Not invited]
  • Prediction of indoor air quality in houses with concentrationcontrol- Ventilation systems considering the concealed air leaks and dwellers opening behaviour
    Motoya Hayashi, Haruki Osawa
    Proceedings of BS 2013: 13th Conference of the International Building Performance Simulation Association 565 - 572 2013 
    In order to find an effective method to keep indoor air quality good through the year in real houses, a simulation program: Fresh was reformed to integrate several important factors in Japanese detached houses and named "Fresh2010". The factors are infiltration from the concealed spaces, behaviour of window openings, the kind of ventilation systems and a concentration control systems. The present dwellers' habits of opening windows may be one of the factors in causing indoor air pollution. The concentration control ventilation with proper design may keep indoor air quality good through a year. Copyright © 2011 by IPAC'11/EPS-AG.
  • YAMADA Hiromi, MATSUSHITA Kazuhiko, TANABE Shin-ichi, HAYASHI Motoya
    Indoor Environment 一般社団法人 室内環境学会 16 (1) 23 - 34 1882-0395 2013 [Refereed][Not invited]
     
    In addition to clarifying the indoor concentration when natural materials and industrial building materials are used and the indoor concentration decreasing effect due to formaldehyde adsorption, the purpose of this study is to clarify the validity of a measurement method for each construction phase as a method of identifying the cause of high chemical concentration. For this experiment, we built an experimental house from wall materials characterized by natural materials and from industrialized building materials and measured the concentration of formaldehyde (DNPH-HPLC method) and of VOC (sampling using Glass Prepacked ATD Tubes and GC-MS analysis) at each construction phase over a period of a year. As a result, we discovered an inflow of formaldehyde from inside the walls as well as indoor pollutants. In response to this, it is necessary to verify the emission rate of the materials on the outside of the airtight layer (for example, heat insulating materials and the back of the outer wall). An increase in the concentration of TVOC was apparent after construction of the wall materials and floor boards and a decrease over a relatively long period was not evident. It is necessary to consider TVOC concentration for VOCs Vaporization building materials, such as adhesives highlighted in the past, and also for constituents of the plastering material. It is also necessary to conduct measurements at each construction phase to identify the cause of emission (particularly measurements after carrying out wet construction using coating and adhesive) and to establish curing period from the measurement results.
  • Influence of crawl spaces upon indoor air quality: The measurements of the pollution by mould in the crawl spaces and the indoor spaces in Japanese houses
    Kenichi Hasegawa, Motoya Hayashi, Yoshinori Honm, Haruki Osawa
    10th International Conference on Healthy Buildings 2012 2 1508 - 1513 2012 
    Recently, dampness in buildings has been indicated to be associated with occupants' adverse health effect such as allergies. In particular mould in indoor air is considered to be a significant risk factor of health. The indoor concentration of airborne fungi becomes higher with growing mould on the surfaces of wall and so on. However, existing mould in the concealed spaces such as crawl spaces, could not be ignored as one of the emission sources. There is a possibility that mould in crawl spaces should move through the concealed spaces in walls and flow into rooms through the leakages of walls, outlets and so on. Airborne fungi in both crawl spaces and indoor rooms have been investigated for several months in twenty-two detached houses located in Japan. This paper describes the measured results of airborne fungi and the possibility of indoor air pollution by mould in the concealed spaces is assessed.
  • Influence of the crawl space upon the indoor air quality the numerical experiments on the indoor air quality considering the infiltration from crawl space
    Motoya Hayashi, Haruki Osawa, Kenichi Hasegawa, Yoshinori Honma
    10th International Conference on Healthy Buildings 2012 1 788 - 793 2012 
    How the air quality of crawl space influences the indoor air quality is investigated using a simulation program "Fresh2010", air leakage network models, and the measurement results on the mould concentrations in crawl spaces of detached houses. The annual changes of indoor mould concentrations were calculated in well airtight houses and common houses. And the relationship between the measured indoor mould concentrations and the calculated concentrations was investigated. The results show that it is necessary to control the air quality of crawl spaces and the infiltration from crawl spaces.
  • Current state of Basement layouts in Japanese houses Awareness of crawl space design on indoor air quality
    Haruki Osawa, Motoya Hayashi, Kenichi Hasegawa, Yoshinori Honma
    10th International Conference on Healthy Buildings 2012 1 106 - 107 2012
  • HAYASHI Motoya
    日本雪工学会誌 : journal of snow engineering 日本雪工学会 28 (1) 28 - 32 0913-3526 2012/01/01 [Not refereed][Not invited]
  • Prediction of indoor air quality and energy consumption considering dweller's opening behavior based on the measurements on the opening habit in houses
    Motoya Hayashi, Yoshinori Honma, Masanori Sugawara
    12th International Conference on Indoor Air Quality and Climate 2011 2 1687 - 1692 2011 
    The indoor air quality is influenced by the building performances and the dweller's living habit. A monitor instrument to measure the width of opening was devised. The width of the window opening as well as the indoor and outdoor temperature and the humility were measured constantly for almost a year houses from the temperate zone to the sub frigid zone in Japan. A simulation program "Fresh2010" was composed considering the dweller's opening habit based on these measurement results. The indoor air temperature, heating and cooling energy, ventilation rate and indoor concentrations were calculated considering the conditions on heating system, cooing system and dweller's opening behavior and the condition of the surround of the house. These results show that the indoor concentrations change hourly, daily and annually. Dweller's opening behavior influences the indoor air quality very much.
  • A study on improvement of traditional Japanese houses considering indoor comfort and energy saving using three test houses
    Mao Tanaka, Motoya Hayashi, Yoko Hirano
    12th International Conference on Indoor Air Quality and Climate 2011 3 1979 - 1984 2011 
    Three types of structure a traditional house, a new house and the hybrid house were designed and built in Kyoto. The hybrid house was built using traditional technologies and new technologies. Mud wall was covered with insulation board outside. The new house was built according to the latest building code for energy saving. Exhaust ventilation systems were installed in the three structures. The airtight levels, ventilation rates, infiltration ratios of pollutants from crawl space, concentrations of volatile organic compounds were measured in these three test houses in winter. The results show the following. The airtight level is very low in the traditional house. The equivalent leakage area of the traditional house was three times of that of the new house. But the indoor air quality of the traditional house is not so high. Because, chemical compounds infiltrated from the crawl space, this characteristic was shown in the hybrid structure.
  • Field Survey on Indoor Microorganism in Twenty-Five Residences in Japan
    Naoya Ando, Hiroshi Yoshino, Rie Takaki, Shin-ichi Tanabe, Motoya Hayashi, Kenichi Hasegawa
    Healthy Buildings 2009 2009/09 [Refereed][Not invited]
     
    ID:708
    Syracuse, USA, 13-17 Sep. 2009
  • A field study on mould, mites and environmental factors in houses
    Motoya Hayashi, Haruki Osawa
    9th International Conference and Exhibition - Healthy Buildings 2009, HB 2009 2009 
    A field study on mould and mites in houses was made in 2006. The amount of mould on the interior surfaces and in the indoor air, the number of mites on the floor and the amount of allergen were measured. These results were analyzed with the answers of occupants on the living style and the building performances. The biological pollutions depended on the living style and the building performances. For example, the number of mites depended on the frequency of cleaning. The mould depended on the vapour condensation and the age of building. And the state of biological pollution in new houses was not worse than that in old houses.
  • Field measurement of airborne fungal spores of detached houses with insulated crawl space foundation in Japan
    Yoshinori Honma, Motoya Hayashi, Kenichi Hasegawa, Haruki Osawa
    9th International Conference and Exhibition - Healthy Buildings 2009, HB 2009 2009 
    The concentration of airborne fungal spores and hygrothermal condition were measured in houses in Tohoku, northern area of JAPAN through a yearlong. From the measurement results, concentration of Penicillium in the crawl space is higher in winter than in summer in general. The concentration of Cladosporium in indoors and outdoors is relatively high in summer season and low in winter season. The statistically analysis of concentration of airborne fungal spores and the relation to hygrothermal condition in the crawl space air, were executed to clarify the mold risk of unventilated crawl space with insulated on foundation wall.
  • Development of Ventilation Measurement Method Using Human Expiration- Experimental Study for Estimation Accuracy-
    Mitsutoshi Fujikawa, Hiroshi Yoshino, Rie Takaki, Hiroyasu Okuyama, Motoya Hayashi, Masanori Sugawara
    Proceedings of The 6th International Conference on Indoor Air Quality, Ventilation & Energy Conservation in Buildings (IAQVEC) 3 177 - 184 2007/10 [Refereed][Not invited]
     
    Sendai, Japan, Oct.28-31, 2007
  • Possibility of personal storing of cereals
    Takashi Sasaki, Yoshinori Honma, Motoya Hayashi
    IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment 3 327 - 332 2007 
    Farming is very popular in Tohoku Region. Especially the yield of rice in this region is more than 10% of that in Japan. However, farmers have a problem with its storage in winter and summer. In general, rice should be harvested in autumn, and be stored until the harvest next year. To store it in summer, electric refrigerators are generally used and they cost a couple of million yen every year. This is not good in view of the promotion of Kyoto Protocol concerning global warming. In this study, the authors propose a passive storing model that makes the best use of the thermal insulation ability and the thermal capacity of the soil. Although an old tunnel has been used as a passive storehouse for several years in Iwate Prefecrture, it has not been know yet to farmers in general. The authors started the investigations of actual conditions of Tohoku Region, and examined the possibility of a personal storing by experiments and calculations. The results of this review will show the possibility of a passive and personal model for storing cereals.
  • Decline of VOC concentrations with aging of houses in Japan
    Motoya Hayashi, Haruki Osawa
    IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment 1 527 - 534 2007 
    The purpose of this investigation is to know the long term characteristics of VOC concentrations in houses built before the building code in 2003 and to know the need of the countermeasures in the houses were already built for example the improvement of the living habit, ventilation and building materials. The concentrations of VOCs were measured in these houses from 2000 to 2005. The results showed that the concentration of formaldehyde decreased in the first year. After that the decline of the concentration became invisible and the concentration changed only with the temperature. The characteristic of decline was thought to be caused by the two mechanisms of emission. One is an emission of concealed formaldehyde in the process of material production and another is an emission with the generation of formaldehyde from adhesives of urea resin and moisture. The concentration of toluene decreased rapidly in the first year. The concentrations of xylene, ethyl-benzene and styrene showed a similar change. But the concentrations of acetaldehyde which were measured from the summer of 2002 did not decrease and its concentrations in some houses were higher than the guideline even in the winter of 2005.
  • 林 基哉
    生活環境科学研究所研究報告 宮城学院女子大学生活環境科学研究所 40 15 - 27 1346-6534 2007 [Refereed][Not invited]
  • Motoya Hayashi, Haruki Osawa, Yoshinori Honma, Miyuki Matsui
    BUILDING SIMULATION 2007, VOLS 1-3, PROCEEDINGS 870 - + 2007 [Refereed][Not invited]
     
    In this study. the characteristics of the movement of chemical compounds in the concealed spaces and indoor spaces In houses were investigated using building cut models and a simulation prop-ram Fresh2006. The equivalent leakage areas in the concealed spaces were measured using cut models of wooden structures: a common wooden structure, an improved wooden structure and a wooden (2 inch x 4 inch) stud structure. The movements of chemical compounds were calculated using the measured equivalent leakage areas and the simulation program. The indoor concentrations of the chemical compounds which volatilized in concealed spaces change with the weather and the behaviors of residents. The infiltration ratios from the concealed spaces to indoor spaces were influenced by mechanical ventilation. The influence of the infiltration upon the indoor air quality was larger in the house with an exhaust ventilation system than with any other ventilation system.
  • EXPERIMENTAL STUDY ON HYBRID VENTILATION SYSTEM PERFORMANCE OF A DETACHED HOUSE IN COLD CLIMATE
    Hiroshi Yoshino, Sounghun Yun, Motoya Hayashi, Hiromi Yamada, Rie Takaki
    The 5th International Conference on Cold Climate Heating, Moscow 2006/05 [Refereed][Not invited]
  • Yoshinori HONMA, Takashi SASAKI, Shinpei UCHIDA, Motoya HAYASHI
    岩手県立大学盛岡短期大学部研究論集 = Bulletin of Morioka Junior College Iwate Prefectural University 8 (8) 29 - 32 1348-9720 2006/03/01 [Refereed][Not invited]
  • Takashi SASAKI, Motoya HAYASHI, Yoshinori HONMA, Shinpei UCHIDA
    岩手県立大学盛岡短期大学部研究論集 = Bulletin of Morioka Junior College Iwate Prefectural University 岩手県立大学盛岡短期大学部 8 (8) 25 - 28 1348-9720 2006/03/01 [Refereed][Not invited]
  • Hayashi Motoya, Sunaga Nobuyuki, Hasegawa Kenichi
    JOURNAL OF THE HOUSING RESEARCH FOUNDATION "JUSOKEN" 一般財団法人 住総研 32 (0) 307 - 318 1880-2702 2006 [Not refereed][Not invited]
     
    Recently, due to deeper interest in the problems of global environment, a sustainable design for buildings has been appreciated in many countries. It is very important to develop a design protocol of building sustainability. Firstly, this paper describes marketing analysis for sustainable design and its key factors for promoting. Secondly, a TSS methodology for sustainable housing design is shown. The TSS is defined as optimized methods in combination with low energy technologies in a climatic condition. Thirdly, this methodology developed is shown to be very effective in penetrations of sustainable housing design.
  • 林 基哉
    生活環境科学研究所研究報告 宮城学院女子大学生活環境科学研究所 39 12 - 18 1346-6534 2006 [Refereed][Not invited]
     
    日本の全国及び特徴的な地域における死亡率と気象に関するデータを用いて、気温と死亡率の関係とその変遷について考察し、住宅の冬期室内環境改善の実態把握を行った。脳血管疾患の死亡率は、気温が上がると共に低下する分布した。住宅の断熱化による室内環境改善が始まった1970年代以降について、気温が死亡率に与える直接的影響の程度には、長野県の例外を除いて、変化率の絶対値が小さく、気温影響が減少する傾向は認めなかった。脳血管疾患の死亡率が高く注意が喚起されている地域にある宮城県、福井県、長野県ばかりではなく、東京都においても気温の直接的影響が同程度あることが示された。
  • YAMADA Hiromi, TANABE Shin-ichi, HAYASHI Motoya
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 71 (604) 39 - 44 1348-0685 2006 [Refereed][Not invited]
     
    Concentrations of acetaldehyde and the ventilation rates were measured in an experimental house for three years. And the emission rates from the materials were measured using small chambers. 1) The concentrations of acetaldehyde changed with the temperature for three years. 2) The influence of the temperature and the concentration upon the emission rate of acetaldehyde was lower than the influence in the case of formaldehyde. 3) The emission rates of acetaldehyde from the materials in three years were as same as the rate from the materials in two years.
  • 林 基哉
    生活環境科学研究所研究報告 宮城学院女子大学生活環境科学研究所 38 10 - 18 1346-6534 2005 [Refereed][Not invited]
  • 林 基哉
    生活環境科学研究所研究報告 宮城学院女子大学生活環境科学研究所 38 1 - 9 1346-6534 2005 [Refereed][Not invited]
  • YUN Sounghun, YOSHINO Hiroshi, HAYASHI Motoya, YAMADA Hiromi, TAKAKI Rie
    AIJ Journal of Technology and Design 日本建築学会 11 (22) 319 - 323 1341-9463 2005 [Refereed][Not invited]
     
    The basic concept of a hybrid ventilation system is to provide an acceptable indoor air quality by alternationg the passive ventilation mode and the mechanical ventilation mode for minimizing the energy consumption. Therefore, the control strategy for the supplemental fan and the damper of hybrid ventilation system is very important for the system performance. The hybrid ventilation system using a pressure difference sensor for monitoring the exhaust airflow rate as the control strategy was installed in a detached test house. Performance of this ventilation system was evaluated through the field measurement. The results of the measurements showed that the exhaust airflow rate was relatively stable while the indoor-outdoor temperature difference varied and the wind velocity changed. But when the wind velocity was strong from the west, the airflow rate was far from the target airflow rate. Totally, the airflow rate met almost the target airflow rate in 75% of the measuring period.
  • YAMADA Hiromi, TANABE Shin-ichi, HAYASHI Motoya
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 70 (589) 23 - 29 1348-0685 2005 [Refereed][Not invited]
     
    The concentrations of formaldehyde and the ventilation rates were measured in an experimental house for two years. The emission rates from the materials were separately measured by using of a small chamber. It was found that the concentrations in the house was increased during the summer season. The total emission amount in the ventilated room was about 10 times as large as that in the non-ventilated room. The emission rates from the materials in the ventilated room were 70% of those from the materials in the non-ventilated room. Emission from particle board was lasted for two years experiment.
  • OSAWA Haruki, IKEDA Koichi, HAYASHI Motoya, KUWASAWA yasuo, MANABE Jun, NAKABAYASHI Yoshiyuki
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 68 (566) 65 - 71 1348-0685 2003 [Not refereed][Not invited]
     
    The purpose of this research is to know the present status of the indoor air chemical pollution by VOCs in Japanese houses in 2000. The concentrations of formaldehyde, toluene, xylene and ethylbenzene were measured in five thousand houses, and the following results were obtained. 1) In 27.3% of surveyed houses, the indoor concentrations of formaldehyde exceeded the guideline established by the Ministry of health, labor and welfare of Japanese Government. And those of toluene, xylene and ethylbenzene were 12.3, 0.013 and 0% respectively. 2) The formaldehyde concentrations correlated well to the indoor temperatures. 3) The averages of the formaldehyde concentrations in houses according to the age of year after construction were analyzed, and the concentration in houses built after 1997 was lower than that in 1996, which showed the highest value.
  • SATO Shigeyuki, HIROKAWA Yoshiko, BOUGAKI Kazuaki, KUWASAWA Yasuo, HAYASHI Motoya, KONDO Seiji
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 68 (571) 75 - 81 1348-0685 2003 [Not refereed][Not invited]
     
    The characteristics of VOCs emission in wooden houses were investigated using an environmental large chamber. A small-scale wooden house was built in the chamber and the concentrations of VOCs, the ventilation rate were measured. And VOCs contents in building materials were measured. On the bases of these measurements, the following mentions were obtained. 1) The indoor temperatures increased the permeability of VOCs such as ethylbenzene, 1,2,4-trimetylbenzene, n-decane from the caulking compounds on the external wall into the indoor space. 2)The indoor temperature did not influence upon the permeability of VVOCs such as methyl alcohol, acetaldehyde.
  • HAYASHI Motoya, OSAWA Haruki
    Journal of Environmental Engineering (Transactions of AIJ) 日本建築学会 68 (573) 63 - 69 1348-0685 2003 [Not refereed][Not invited]
     
    The purpose of this research is to know the influence of chemical emission from the concealed building materials upon the indoor air quality in Japanese houses with exhaust ventilation systems. From the investigations using a test house, a partial structure model and small chambers, the following results were obtained. 1. The emission rates of formaldehyde from the concealed materials were not lower than those from the interior materials. 2. The formaldehyde infiltrated into the indoor space through the leaks and the infiltration rates of formaldehyde changed with the temperatures.
  • SATO Shigeyuki, HIROKAWA Yoshiko, BOUGAKI Kazuaki, KUWASAWA Yasuo, HAYASHI Motoya, KONDO Seiji
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 68 (564) 99 - 106 1340-4210 2003 [Not refereed][Not invited]
     
    In this study, the VOCs emission was investigated during the interior finish work in two apartment houses under construction. To confirm the results of the VOCs emission, the concentrations of the VOCs were measured for a week in other apartment houses. The concentration of methyl alcohol emitted from wood-based panels was the highest of all the concentrations of the VOCs detected in the houses. The emission rates of VVOCs such as pentane, hexane became g/hr order in the process of fixing interior panels to the walls, but after construction, these compounds did not remain indoors. Compared with the guideline values of indoor air quality in Japan, the levels of toluene and xylene were higher both under and after construction.
  • 土屋 喬雄, 林 基哉
    日本建築学会技術報告集 日本建築学会 9 (18) 442 - 442 1341-9463 2003 [Not refereed][Not invited]
  • SATO Shigeyuki, HIROKAWA Yoshiko, BOUGAKI Kazuaki, HAYASHI Motoya, KONDO Seiji
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 67 (554) 93 - 100 1340-4210 2002 [Refereed][Not invited]
     
    In order to grasp the movement of styrene, which is thought to be an endocrine disruptor, its emission rate was measured at every stage of the process in which an apartment house is constructed, and the emission rate from 'tatami' mats using polystyrene boards in a large chamber was also measured. As a result, the followings are made clear. 1. The emission rate of styrene becomes high after the installation of the wall panels and after the completion of the building. The emission rate at the completion reaches55 (mg/h) and its concentration is 1.4 (mg/m3) when the air change rate is 0.5(1/h). 2. The emission rate of styrene increases with dynamic loads by walking. The increase continues for six days at the shortest. From the above-mentioned results, the risk of indoor air pollution by styrene from 'tatami' mats using polystyrene boards is suggested.
  • SATO Shigeyuki, HIROKAWA Yoshiko, HAYASHI Motoya, BOUGAKI Kazuaki, OOSAWA Haruki, KONDO Seiji
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 67 (562) 113 - 119 1340-4210 2002 [Refereed][Not invited]
     
    The aim of this study is to clarify the movement characteristics of styrene gas in houses. The emission rates from a straw mat with styrene boards were measured in a large chamber and the following results were obtained. 1) The pressurization of the installation of the straw mat and the walking on the mat makes the emission rate of styrene higher. The rate of increase was 350 μg/h by 1000 steps and is the same as the rate by 650 steps. 2) The emission rate does not increase linearly with the number of the steps. The peek of the emission rate after the pressurization with 1000 steps was 700μg/h. The rate was not over 700μg/h under the condition that 1000 steps are carried out everyday. 3) The emission characteristic of styrene is similar to those of the volatile organic compounds from the straw mat.
  • 林 基哉, 佐々木 隆, 菅原 正子
    生活環境科学研究所研究報告 宮城学院女子大学生活環境科学研究所 35 44 - 48 1346-6534 2002 [Refereed][Not invited]
  • YAMADA Hiromi, TANABE Shin-ichi, HAYASHI Motoya
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 67 (559) 21 - 27 1340-4210 2002 [Refereed][Not invited]
     
    This paper aims at clarifying the influence that the ventilation characteristics have on formaldehyde concentration in a house. The indoor formaldehyde concentration, ventilation rates and routes have been measured using an experimental house. The formaldehyde concentration has been calculated by characteristics of emission rates. It was found that the room in which polluted air flows is higher than that of an inflow of outdoor air. It is important to design ventilation routes into which polluted air doesn't flow. The calculated concentration is consistent with the measurement results excluding the period after being made airtight. After being sealed, the experiment value decreased gently as compared with the calculation value.
  • YAMADA Hiromi, HAYASHI Motoya, TANABE Shin-ichi
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 67 (553) 55 - 61 1340-4210 2002 [Refereed][Not invited]
     
    The aim of the study is to propose a prediction method of indoor Formaldehyde concentration based on the emission characteristics in small chambers for a full-scale experimental house. Concentrations of Formaldehyde, temperatures, humidity, ventilation rates and routes, and emission rates from the interior surface were compared with the predicted data. It was found that indoor concentrations calculated with the emission rates using FLEC and the ventilation rates agreed well with the measured results. Indoor concentration was influenced by temperature and ventilation rate, and it decreased gradually by time. The speed of decay was lower than that in small chambers. The predicted indoor concentrations considering the decay speed aereed well with the measured results.
  • Megumi UOZUMI, Takashi SASAKI, Masako SUGAWARA, Motoya HAYASHI, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY
    Bulletin of Morioka Junior College, Iwate Prefectural University 岩手県立大学盛岡短期大学部 3 (3) 55 - 60 1348-9720 2001/03 [Not refereed][Not invited]
     
    We, the authors, conducted a survey focused on the interior climate and food customs of homes in summer. Along with the survey, we measured indoor temperatures, and conducted detailed research on the eating habits of Iwate's residents. 1. From the questionnaire survey we guessed that the job for living, a family composition and a private farm products were related to the type of their meal. 2. It was thought that the correlation seen between the concentration of salt in soup which temperatures fluctuate in winter and the resident in the house were taking had exerted the influence on the food custom in summer. 3. The main cause of the difference of each kitchen temperature, when the kitchen in daytime of summer was used, is solar radiation. 4. In Iwate Pref., it was admitted that the indoor temperature might be higher than the outside temperature degree in daytime of summer. 5. On the kitchen of summer, it is necessary to think about the structure of the house in order that the temperature of the kitchen does not rise because of the heat generated from cooking.
  • Masako SUGAWARA, Takashi SASAKI, Megumi UOZUMI, Motoya HAYASHI, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY
    Bulletin of Morioka Junior College, Iwate Prefectural University 岩手県立大学盛岡短期大学部 3 (3) 47 - 54 1348-9720 2001/03 [Not refereed][Not invited]
     
    This is one of the studies based on the idea that the synthetic evaluation of clothing, eating and living environment is necessary in order to improve the performance of the general houses in Iwate Prefecture and to realize good energy saving. On the actual condition of the clothing life, its relation with the living environment, which is the base of the life, is a matter for much consideration. To pursue a more comfortable and safer clothing life and to study the improvement of the clothing life is important in a society with a lot of elderly people. The previous study was on the clothing, eating and living environment in winter. And this study focuses on the relationship of temperature and indoor conditions with the clothing life in summer. The results of the investigation show that the clothing life is much influenced by the living environment. In Iwate Prefecture, "to break the barrier of temperature" will make the clothing life safe and very comfortable.
  • Takashi SASAKI, Masako SUGAWARA, Megumi UOZUMI, Motoya HAYASHI, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY
    Bulletin of Morioka Junior College, Iwate Prefectural University 岩手県立大学盛岡短期大学部 3 (3) 39 - 46 1348-9720 2001/03 [Not refereed][Not invited]
     
    This report is a summary of the investigation result of the living life in summer. As for the result of the mailing questionnaire survey, it has been understood that correspondence to the indoor heat is done by an environmental adjustment by ventilation. The use of the dehumidification machine stood out remarkably in Kuji where the influence of "YAMASE" was especially large the existence of mold. The use of the dehumidification machine stood out also in Morioka in the city part. It has been understood that there is few house where air-conditioning as a result of the investigation. And, there are not necessarily a lot of regions where air-conditioning is needed. This result shows the problem in the plan with a lot of dependence on air-conditioning device at a present, and shows that the succession of the tradition does not go well. As for the indoor temperature of the shape house of the present age of insulated shortage, it has been understood to tend higher room temperature than the outdoor from the measurement result of the indoor environment. The room temperature rise by solar radiation is suppressed in the effect of the super-insulation of the roof in old traditional thatched private house .In the life by ventilation mainly done, the outdoor temperature often controls the room temperature. It is obviously that the thermal performance of house, which the insolation through the window has been covered and well insulated and high-airtightend is high, when the room temperatures are lower than the outside temperature. The author excluded, defined the value by an insolation value as the insolation room temperature rise efficiency, and arranged inside and outside temperatures fluctuate by the standard deviations a result, the value has grown in an insulated house where the insolation cover is inconsistent and the shape house of the present age of insulated shortage. The value was small in insulated and airtightend house where a thorough insolation had been covered. The authors have taken the conclusion basing on the questionnaire survey result obtained above that there was a cause in condition of life if there was a room temperature rise in an insulated house, and is no necessity of air-conditioning of the house in Iwate Pref.
  • 林 基哉
    日本建築学会技術報告集 日本建築学会 7 (14) 394 - 394 1341-9463 2001 [Not refereed][Not invited]
  • YAMADA Hiromi, UEHARA Koji, HAYASHI Motoya, TANABE Shin-ichi
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 66 (543) 57 - 63 1340-4210 2001 [Refereed][Not invited]
     
    The purpose of this paper is to investigate the influence of the environmental factors upon the concentration of formaldehyde using small chambers and to develop a prediction method of indoor air quality in houses. The results of the measured emission rates in the small chambers are asfollows. 1. The emission rate increases as temperature rises and its influence is larger than those of the other factors: the humidity, the ventilation rate, the concentration and the sink effect. 2. The emission process influences upon the emission rates and the process is influenced by these factors. 3. The characteristics of the emission rates influenced by these factors obtained from the experiments using the small chambers meet the characteristics of the calculated values using the proposed simple equations.
  • 林 基哉
    生活科学研究所研究報告 宮城学院女子大学生活科学研究所 (32) 41 - 43 0386-7536 2000/03 [Refereed][Not invited]
  • Takashi SASAKI, Motaya HAYASHI, Noboru ARATANI, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY, MORIOKA JUNIOR COLLEGE IWATE PREFECTURAL UNIVERSITY
    Bulletin of Morioka Junior College, Iwate Prefectural University 岩手県立大学盛岡短期大学部 2 (2) 41 - 47 1348-9720 2000/03 [Refereed][Not invited]
     
    In the previous reports, the authors have done natural ventilation form analysis of the multi layer window's hollow layer that considered wind pressure fluctuation and an open mouth part. These studies showed that the incoming and outgoing of the air by wind pressure fluctuation happens also in the space with one opening. The authors also showed the fundamental method of computation, the design guideline of the opening condition that is related efficacy to the prevention of vapour condensation of the multi layer window and confirm by the inspection that used the model. This report examined the method that accuracy is raised more in the wind force ventilation calculation of actual the structure. Comparing and examining the result by the method of computation that considered the fluctuation that was intended for one room of a model and also gathering residence by using the concrete fluctuating wind pressure data of the building periphery, as the examination of the precision method to solution. It is confirmed efficacy of the method with the several measurement results in this report.
  • 林 基哉, 佐々木 隆, 荒谷 登
    生活科学研究所研究報告 宮城学院女子大学生活科学研究所 (32) 13 - 25 0386-7536 2000/03 [Refereed][Not invited]
  • HAYASHI Motoya, ENAI Masamichi, YAMADA Hiromi
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 65 (529) 39 - 46 1340-4210 2000 [Refereed][Not invited]
     
    A passive stack ventilation system to control the ventilation rate was designed in an airtight test house and the ventilation rates were measured for five months in -winter. And the annual characteristics of the ventilation and the indoor air quality in houses with the passive ventilation systems were calculated by using a house model and the standard daily schedule models from NHK. The results were as follows. 1) The ventilation rates in the house with a passive ventilation system meet the ventilation requirement through the year with a fan controlled by an airflow speed sensor. 2) The ventilation rates change with the temperature differences between the inside and the outside. If the dwellers don't open windows to keep the indoor air quality, the ventilation rates were lower during the marginal season without the control system in houses 3) The energy demand levels to keep the ventilation rates using fans in the marginal season are low because the airflow ratio of the stack ventilation system is high. But the energy loss with the over ventilation rates in the coldest season are large, so the damper system is very necessary for saving energy.
  • HAYASHI Motoya, YAMADA Hiromi, ENAI Masamichi
    Journal of Architecture and Planning (Transactions of AIJ) 日本建築学会 63 (504) 47 - 54 1340-4210 1998 [Refereed][Not invited]
     
    The purpose of the study is to discuss the feasibility of a passive stack ventilation system using the beam space of a house as an air distribution chamber. The results of the calculation and the measured air flow rates in a test house are as follows 1) The proposed system requires less airtigthness than a direct air supply system using wall inlets. Designing stacks is easy in the proposed system because the height of the neutral zone is not influenced by the degree of airtightness. 2) In airtight houses, the distribution of fresh air and the ventilation routes can be well-designed using the beam space. The ventilation rate increased with the difference between the indoor temperature and the outdoor temperature. 3) In houses using a space heating system, the passive stack ventilation system fulfills the ventilation requirement during 90% of the heating season. And the ratio of the total ventilation volume to the ventilation requirement is 70%.
  • ISHIDA Ken-ichi, KAMATA Motoyasu, CHIDA Yoshitaka, HOSHIKAWA Kunihiko, HAYASHI Motoya
    Journal of Architecture, Planning and Environmental Engineering (Transactions of AIJ) 日本建築学会 438 (0) 23 - 31 0910-8017 1992 [Not refereed][Not invited]
     
    In this paper we present a simplified calculation method of the house infiltration rates with the building air tightness. The characteristic of the method is able to estimate the infiltration rates for combination of out door wind speed and indoor-outdoor temperatuer difference. The proposed calculation method was tested using the measured infiltration data of a experimental house for a year. A results of the comparison between the calculations and measurements showed that the agreement between the prediction and the measurement was also within 0.1 volume par hour.
  • SASAKI TAKASHI, HAYASHI MOTOYA, ARATANI NOBORU
    Journal of Architecture, Planning and Environmental Engineering (Transactions of AIJ) 日本建築学会 384 (0) 20 - 26 0910-8017 1988 [Not refereed][Not invited]
     
    Diese Abhandlung wird tlber die Beschlagdicht der Luftschicht zwischen den zwei Scheibenfenster bes-chrieben. Der Schllisse sind wie das Folgende; 1) Die AuBenluft flieBt in die Luftschicht gegen der Windrichtung des Gebaudes ein. 2) Das Verhaltnis des Einflusses von AuBenluft in die Luftschicht nimmt zu, wenn der Schwingungsweite groB ist und die Frequenz hoch ist. 3) Filr die Beschlagdicht der Luftschicht soil die auBeren Llicke etwa 1/50 gegen der inneren Lucke als die DurchlaBigkeit brauchen.
  • SASAKI TAKASHI, HAYASHI MOTOYA, ARATANI NOBORU
    Journal of Architecture, Planning and Environmental Engineering (Transactions of AIJ) 日本建築学会 372 (0) 67 - 73 0910-8017 1987 [Not refereed][Not invited]
     
    Diese Abhandlung wird uber dem Luftungszustand der Luftschicht beschrieben. Der Schlusse sind wie das Folgende ; 1) Die Luft in der Lucke bewegt als die Masse. 2) Die Berechnung von Bewegung der Luft in der Lucke soll mit Luftmasse in Erwagung gezogene Methode handeln. 3) Der Verfasser haben die Berechnung-Modell der Luftung von der Luftschicht mit dem Glas-Schwingung gemacht und gerechnet. 4) Das Glas-Schwingung nimmt die Luftungmenge von der Luftschicht in der Niederfrequenz zu.

MISC

Books etc

  • 住まいと人と環境 プロフェッショナルからの提言「シックハウスと隙間換気」
    林 基哉 (Contributor)
    技報堂出版 2015/11 55-58
  • 住まいと人と環境 プロフェッショナルからの提言「冬対応と夏対応の両方を考えよう」
    林 基哉 (Contributor)
    技報堂出版 2015/11 127-131

Presentations

  • 東 賢一, 稲葉 洋平, 金 勲, 戸次 加奈江, 林 基哉, 内山 巖雄, 欅田 尚樹
    日本衛生学雑誌  2020/03  (一社)日本衛生学会
  • 事務所建築における空気環境管理に関する研究(その5) 室内環境と建築物規模  [Not invited]
    長谷川 兼一, 東 賢一, 金 勲, 島崎 大, 開原 典子, 欅田 尚樹, 林 基哉, 小林 健一
    日本公衆衛生学会総会抄録集  2019/10  日本公衆衛生学会
  • 事務所建築における空気環境管理に関する研究(その4) ビル関連症状と建築物規模  [Not invited]
    東 賢一, 金 勲, 長谷川 兼一, 島崎 大, 開原 典子, 欅田 尚樹, 林 基哉, 小林 健一
    日本公衆衛生学会総会抄録集  2019/10  日本公衆衛生学会
  • 事務所建築における空気環境管理に関する研究(その3) 冷暖房期のCO2濃度の実態調査  [Not invited]
    金 勲, 林 基哉, 開原 典子, 東 賢一, 長谷川 兼一, 島崎 大, 欅田 尚樹, 小林 健一
    日本公衆衛生学会総会抄録集  2019/10  日本公衆衛生学会
  • 事務所建築における空気環境管理に関する研究(その2) 室内温湿度の実態と課題  [Not invited]
    開原 典子, 金 勲, 東 賢一, 長谷川 兼一, 島崎 大, 欅田 尚樹, 林 基哉, 小林 健一
    日本公衆衛生学会総会抄録集  2019/10  日本公衆衛生学会
  • 事務所建築における空気環境管理に関する研究(その1) 夏期室内環境の連続測定  [Not invited]
    林 基哉, 金 勲, 開原 典子, 小林 健一, 島崎 大, 東 賢一, 長谷川 兼一, 欅田 尚樹
    日本公衆衛生学会総会抄録集  2019/10  日本公衆衛生学会
  • 人口動態統計を用いた疾病発生の季節依存性に関する経時的分析  [Not invited]
    長谷川 舞, 羽山 広文, 林 基哉
    日本公衆衛生学会総会抄録集  2019/10  日本公衆衛生学会
  • 金 勲, 林 基哉
    環境工学II  2019/07  日本建築学会
  • 長谷川 舞, 羽山 広文, 森 太郎, 林 基哉
    日本建築学会北海道支部研究報告集  2019/06  日本建築学会
  • 室内空気中揮発性メチルシロキサン類の実態調査  [Not invited]
    竹熊 美貴子, 堀井 勇一, 茂木 守, 菊田 弘輝, 長谷川 兼一, 本間 義規, 厳 爽, 山田 裕巳, 林 基哉
    日本薬学会年会要旨集  2019/03  (公社)日本薬学会
  • 高齢者施設における室内環境の実態と課題(その2) 温熱環境に関する全国調査  [Not invited]
    金 勲, 阪東 美智子, 林 基哉
    室内環境学会学術大会講演要旨集  2018/12  (一社)室内環境学会
  • ハウスダストの粒径ごとのSVOCの分布実態  [Not invited]
    稲葉 洋平, 金 勲, 戸次 加奈江, 林 基哉, 欅田 尚樹
    室内環境学会学術大会講演要旨集  2018/12  (一社)室内環境学会
  • 高齢者施設の環境衛生に関する全国実態調査(第9報) 湿度管理の調査と改善  [Not invited]
    開原 典子, 林 基哉, 金 勲, 阪東 美智子
    日本公衆衛生学会総会抄録集  2018/10  日本公衆衛生学会
  • 高齢者福祉施設における温湿度環境の管理基準と実態  [Not invited]
    金 勲, 阪東 美智子, 林 基哉
    日本公衆衛生学会総会抄録集  2018/10  日本公衆衛生学会
  • 特定建築物の空気環境に関する研究(その5) 空気環境基準の不適率に関する詳細分析  [Not invited]
    林 基哉, 欅田 尚樹, 開原 典子, 金 勲
    日本公衆衛生学会総会抄録集  2018/10  日本公衆衛生学会
  • 戸建住宅居住者の居住環境と生活習慣に関するWEB調査 性別・年齢と居住リテラシー  [Not invited]
    阪東 美智子, 長谷川 兼一, 林 基哉
    日本公衆衛生学会総会抄録集  2018/10  日本公衆衛生学会
  • 厳 爽, 本間 義規, 花輪 優香, 林 基哉, 塚田 由佳里, 小林 健一
    建築計画  2018/07  日本建築学会
  • 高齢者施設の実態調査に基づく室内空気環境改善策の検討 日本とフィンランドの高齢者施設の室内環境調査と分析  [Not invited]
    林 基哉, 開原 典子, 金 勲
    日本臨床環境医学会総会プログラム・抄録集  2018/07  日本臨床環境医学会
  • 高齢者施設環境の実態とその改善策 高齢者福祉施設の環境衛生管理と課題 国立保健医療科学院の高齢者施設の環境衛生管理に関する調査研究  [Not invited]
    林 基哉
    日本臨床環境医学会総会プログラム・抄録集  2018/07  日本臨床環境医学会
  • ハウスダスト中SVOC濃度の実態と居住環境  [Not invited]
    金 勲, 稲葉 洋平, 戸次 加奈江, 東 賢一, 林 基哉, 欅田 尚樹
    日本臨床環境医学会総会プログラム・抄録集  2018/07  日本臨床環境医学会
  • 負圧環境下における住宅内化学物質濃度特性  [Not invited]
    金勲, 林基哉, 大澤元毅, 竹熊美貴子
    平成29年度室内環境学会学術大会  2017/12
  • 建築物における粒径分布を考慮した室内粒子濃度の予測  [Not invited]
    小松礼奈, 鍵直樹, 柳宇, 東賢一, 金勲, 林基哉, 開原典子, 大澤元毅
    平成29年度室内環境学会学術大会  2017/12
  • 特定建築物の空気環境に関する研究（第4報）空気環境管理の課題．  [Not invited]
    大澤元毅, 林基哉,金勲, 開原典子, 東賢一
    第76回日本公衆衛生学会総会  2017/11
  • 特定建築物の空気環境に関する研究（第3報）自治体を対象にした空気環境6項目の調査．  [Not invited]
    開原典子, 林基哉, 大澤元毅, 金勲, 東賢一
    第76回日本公衆衛生学会総会  2017/11
  • 特定建築物の空気環境に関する研究（第1報）空気環境の実態調査．  [Not invited]
    金勲,林基哉, 大澤元毅, 開原典子, 東賢一
    第76回日本公衆衛生学会総会  2017/11
  • 高齢者福祉施設における温湿度環境の管理基準と実態  [Not invited]
    金勲, 阪東美智子, 大澤元毅, 開原典子, 林基哉
    第46回日本医療福祉設備学会  2017/11
  • 特定建築物の空気環境に関する研究（第2報）空気環境基準の不適率に関する分析  [Not invited]
    林基哉, 大澤元毅, 金勲, 開原典子, 東賢一
    第76回日本公衆衛生学会総会  2017/11
  • 換気口への着雪が及ぼす湿気の異動に関する実験的研究．  [Not invited]
    松村光太郎, 林基哉, 佐藤研吾
    2017年度日本建築学会大会  2017/09
  • 室内環境中エンドトキシンに関する研究 その1 空気中エンドトキシン濃度と培養法による浮遊細菌濃度との関係．  [Not invited]
    金勲,柳宇, 鍵直樹, 東賢一, 大澤元毅, 林基哉
    2017年度日本建築学会大会  2017/09
  • デマンド換気を導入した超高性能パッシブ換気住宅の性能評価．  [Not invited]
    水野敬太, 菊田弘輝, 福家智大, 金勲, 林基哉
    空気調和・衛生工学会大会  2017/09
  • 特定建築物の室内空気環境データの分析．  [Not invited]
    開原典子, 林基哉, 大澤元毅, 金勲,柳宇, 東賢一
    空気調和・衛生工学会大会  2017/09
  • 高齢者施設における室内環境と健康性に関する調査（第11報）全国の特別養護老人ホームにおけるにおい環境の実態について．  [Not invited]
    金勲, 林基哉, 大澤元毅, 阪東美智子
    空気調和・衛生工学会大会  2017/09
  • 建築物衛生法における空気環境の報告聴取と立入検査に関する実態  [Not invited]
    開原典子, 林基哉, 大沢元毅, 金勲,柳宇, 東謙一, 鍵直樹
    2017年度日本建築学会大会  2017/09
  • 戸建住宅の簡易気密性能確認法 レンジファンを用いた1点法の検証  [Not invited]
    林基哉, 金勲, 大澤元毅, 竹熊美貴子
    2017年度日本建築学会大会  2017/09
  • デマンド換気を導入した超高性能パッシブ換気住宅の実態調査 その３ 省エネルギー評価  [Not invited]
    水野敬太, 菊田弘輝, 福家智大, 林基哉,金勲
    2017年度日本建築学会大会  2017/09
  • デマンド換気を導入した超高性能パッシブ換気住宅の実態調査 その２ 室内環境評価  [Not invited]
    福家智大, 菊田弘輝, 水野敬太, 林基哉,金勲
    2017年度日本建築学会大会  2017/09
  • デマンド換気を導入した超高性能パッシブ換気住宅の実態調査 その１ 調査概要と給気余熱評価  [Not invited]
    菊田弘輝, 福家智大, 水野敬太, 林基哉,金勲
    2017年度日本建築学会大会  2017/09
  • Annual Characteristics of a Passive Stack Ventilation System with Mechanically Controlled Air Supply Openings,  [Not invited]
    Hayashi Motoya
    Building Simulation 2017  2017/08
  • 菊田 弘輝, 福家 智大, 水野 敬太, 林 基哉, 金 勲
    環境工学II  2017/07  日本建築学会
  • 福家 智大, 菊田 弘輝, 水野 敬太, 林 基哉, 金 勲
    環境工学II  2017/07  日本建築学会
  • 林 基哉, 金 勲, 大澤 元毅, 竹熊 美貴子
    環境工学II  2017/07  日本建築学会
  • Survey on airborne chemicals and endotoxin in facilities for the elderly in Japan  [Not invited]
    Hoon Kim, Motoya Hayashi, Haruki Osawa, Noriko Kaihara, Michiko Bando, Koki Kikuta, Hirofumi Hayama, Yoshinori Honma, U Yanagi
    Healthy Building 2017 (USB)  2017/07
  • A study on effective control of influenza infection considering energy saving in buildings,  [Not invited]
    Hayashi M, Kobayashi K, Bando M, Kim H, Kaihara N, Osawa H
    Healthy Building 2017  2017/07
  • Survey on airborne chemicals and endotoxin in facilities for the elderly in Japan,  [Not invited]
    Kim H, Hayashi M, Osawa H, Kaihara N, Bando M, Kikuta K, Hayama H, Honma Y, Yanagi U
    Healthy Building 2017  2017/07
  • 水野 敬太, 菊田 弘輝, 福家 智大, 林 基哉, 金 勲
    日本建築学会北海道支部研究報告集  2017/06  日本建築学会
  • 高齢者施設の実態調査に基づく室内空気環境改善策の検討 その3 冬期のインフルエンザ感染とエネルギー消費を考慮した改善効果の推定  [Not invited]
    大澤元毅, 林基哉, 開原典子
    第26回日本臨床環境医学会学術集会  2017/06
  • 高齢者施設の実態調査に基づく室内環境改善策の検討 その2 冬期の換気性状と必要加湿量に関する分析  [Not invited]
    開原典子, 林基哉, 大沢元毅
    第26回日本臨床環境医学会学術集会  2017/06
  • 高齢者施設の実態調査に基づく室内空気環境改善策の検討 その1 環境衛生管理と冬期室内空気環境の実態  [Not invited]
    大澤元毅, 林基哉, 開原典子
    第26回日本臨床環境医学会学術集会  2017/06
  • 高齢者施設の実態調査に基づく室内空気環境改善策の検討(その3) 冬期のインフルエンザ感染とエネルギー消費を考慮した改善効果の推定  [Not invited]
    林 基哉, 大澤 元毅, 開原 典子
    日本臨床環境医学会総会プログラム・抄録集  2017/06  日本臨床環境医学会
  • 高齢者施設の実態調査に基づく室内空気環境改善策の検討(その2) 冬期の換気性状と必要加湿量に関する分析  [Not invited]
    開原 典子, 林 基哉, 大澤 元毅
    日本臨床環境医学会総会プログラム・抄録集  2017/06  日本臨床環境医学会
  • 高齢者施設の実態調査に基づく室内空気環境改善策の検討(その1) 環境衛生管理と冬期室内空気環境の実態  [Not invited]
    大澤 元毅, 林 基哉, 開原 典子
    日本臨床環境医学会総会プログラム・抄録集  2017/06  日本臨床環境医学会
  • 林 基哉
    保健医療科学  2017/04  国立保健医療科学院
     
    高齢者施設の室内環境の実態調査によって、冬期の室内湿度が建築物環境衛生管理基準(40-70%)を満たしていないことが明らかとなった。高齢者施設ではインフルエンザの空気感染予防等のために湿度維持が重要であるが、加湿設備が整備されていない場合が多い。このため、多数のポータブル加湿器を用いて湿度維持を試みているが、換気量が多いために加湿の効果が得られていないことが示された。以上の室内環境の特性を踏まえて、絶対湿度と一人当りの換気量からインフルエンザの感染リスクを示す指標を提案した。また、エネルギー消費量とインフルエンザの空気感染リスクの関係を踏まえた湿度改善の考え方を示した。以上の評価方法を用いて既存の高齢者施設に対する評価を行った結果、高齢者施設の湿度が非常に低いために一人当りの換気量が感染リスクを規定している状況であることが確認された。以上の評価結果を踏まえて、高齢者施設の湿度維持のための以下の方策が必要であることを示した。1.臭気などの室内空気汚染に配慮した上で、一人当りの換気量を抑制しつつ加湿によって湿度を維持することが必要である。2.湿度維持に伴う結露防止へのために開口部等の断熱化が必要である。(著者抄録)
  • 住宅の簡易気密測定法の開発  [Not invited]
    林 基哉
    H&ELetter人・住まい・環境  2017/04
  • 事務所建築物室内における室内PM2.5の粒径別評価  [Not invited]
    小松玲奈, 鍵直樹, 柳宇, 東賢一, 金勲, 林基哉, 開原典子, 大澤元毅
    第34回空気清浄とコンタミネーションコントロール研究大会  2017/04
  • 山田 裕巳, 田辺 新一, 林 基哉
    日本建築学会研究報告. 九州支部. 1, 構造系  2017/03  日本建築学会
  • Matsumura Kotaro, Hayashi Motoya, Sato Kengo, Kosugi Kenji
    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2017  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering
  • 高齢者施設における室内環境の実態と課題(その2) 夏期における寒冷地の室内温湿度の実態調査  [Not invited]
    大澤 元毅, 林 基哉, 開原 典子, 金 勲, 阪東 美智子, 小林 健一, 菊田 弘輝, 羽山 広文, 本間 義規, 厳 爽
    室内環境学会学術大会講演要旨集  2016/12  (一社)室内環境学会
  • 高齢者施設における室内環境の実態と課題(その1) 寒冷地域の施設における室内空気質の実態調査  [Not invited]
    金 勲, 林 基哉, 大澤 元毅, 開原 典子, 阪東 美智子, 菊田 弘輝, 羽山 広文, 本間 義規
    室内環境学会学術大会講演要旨集  2016/12  (一社)室内環境学会
  • 事務所建築物室内における室内PM2.5の特徴評価  [Not invited]
    小松 礼奈, 鍵 直樹, 柳 宇, 東 賢一, 金 勲, 林 基哉, 開原 典子, 大澤 元毅
    室内環境学会学術大会講演要旨集  2016/12  (一社)室内環境学会
  • 住生活と室内環境の時系列特性に関する研究 住宅における居住者行為と炭酸ガス濃度の測定結果  [Not invited]
    林 基哉
    室内環境学会学術大会講演要旨集  2016/12  (一社)室内環境学会
  • 高齢者施設における室内環境の実態と課題 その2 夏期における寒冷地の室内温湿度の実態調査  [Not invited]
    大澤元毅, 林基哉, 開原典子, 金勲, 小林健一, 阪東美智子, 菊田弘輝, 羽山広文, 本間義規, 厳爽
    平成28年室内環境学会学術大会  2016/12
  • 高齢者施設における室内環境の実態と課題 その1 寒冷地域の施設における室内空気質の実態調査  [Not invited]
    金勲,林基哉, 大澤元毅, 開原典子, 阪東美智子, 菊田弘輝, 羽山広文
    平成28年室内環境学会学術大会  2016/12
  • 事務所建築物における室内PM2.5の特徴評価  [Not invited]
    小松礼奈, 鍵直樹, 柳宇, 東賢一, 金勲, 林基哉, 開原典子, 大澤元毅
    平成28年室内環境学会学術大会  2016/12
  • 住生活と室内環境の時系列特性に関する研究‐住宅における居住者行為と炭酸ガス濃度の測定結果  [Not invited]
    林 基哉
    平成28年室内環境学会学術大会  2016/12
  • Estimation on Humidification and Ventilation for Infection Control in Residence for the Elderly  [Not invited]
    Motoya Hayashi
    Proceeding of the 7th international conference on energy environment of residential buildings  2016/11
  • 高齢者施設の環境衛生に関する全国実態調査(第6報) 施設内温湿度環境の地域特性  [Not invited]
    大澤 元毅, 林 基哉, 阪東 美智子, 開原 典子, 金 勲, 小林 健一
    日本公衆衛生学会総会抄録集  2016/10  日本公衆衛生学会
  • 高齢者施設の環境衛生に関する全国実態調査(第5報) におい環境及び管理状況  [Not invited]
    金 勲, 林 基哉, 阪東 美智子, 大澤 元毅, 開原 典子, 小林 健一
    日本公衆衛生学会総会抄録集  2016/10  日本公衆衛生学会
  • 高齢者施設の環境衛生に関する全国実態調査(第4報) 管理業務体制と管理実態  [Not invited]
    阪東 美智子, 金 勲, 大澤 元毅, 林 基哉, 開原 典子
    日本公衆衛生学会総会抄録集  2016/10  日本公衆衛生学会
  • 介護動作時における判断の有無と臭気が身体ストレスに及ぼす影響  [Not invited]
    山田 裕巳, 林 基哉
    病院設備  2016/10  (一社)日本医療福祉設備協会
  • Airborne Influenza Infection Control with Ventilation and Humidity - Estimation Method and Application Example for the Facilities for the Elderly  [Not invited]
    Hoon KIM, Motoya HAYASHI, Haruki OSAWA
    大韓建築学会学術大会  2016/10
  • 高齢者施設の環境衛生に関する全国実態調査（第8報）管理業務体制と管理実態  [Not invited]
    林基哉, 開原典子, 金勲, 大澤元毅, 阪東美智子, 小林健一
    第75回日本公衆衛生学会総会  2016/10
  • 高齢者施設の環境衛生に関する全国実態調査（第7報）寒冷地における換気と加湿の分析  [Not invited]
    開原典子, 林基哉, 大澤元毅, 金勲, 阪東美智子, 小林健一
    第75回日本公衆衛生学会総会  2016/10
  • 高齢者施設の環境衛生に関する全国実態調査（第6報）施設内温湿度環境及び地域特性  [Not invited]
    大澤元毅, 林基哉, 阪東美智子, 開原典子, 金勲, 小林健一
    第75回日本公衆衛生学会総会  2016/10
  • 高齢者施設の環境衛生に関する全国実態調査（第5報）におい環境及び管理状況  [Not invited]
    金勲,林基哉, 阪東美智子, 大澤元毅, 開原典子, 小林健一
    第75回日本公衆衛生学会総会  2016/10
  • 高齢者施設の環境衛生に関する全国実態調査（第4報）管理業務体制と管理実態  [Not invited]
    阪東美智子, 金勲, 大澤元毅, 林基哉, 開原典子
    第75回日本公衆衛生学会総会  2016/10
  • 高齢者施設における室内環境と健康性に関する調査（第10報）全国の特別養護老人ホームにおける施設及び設備の実態について  [Not invited]
    金勲,林基哉, 大澤元毅, 開原典子, 阪東美智子
    空気調和・衛生工学会大会  2016/09
  • 高齢者施設における室内環境と健康性に関する調査（第9報）寒冷地における二酸化炭素濃度を用いた加湿の分析  [Not invited]
    開原典子, 林基哉, 大澤元毅, 金勲, 本間義規, 菊田弘輝, 羽山広文, 阪東美智子, 小林健一, 厳爽
    空気調和・衛生工学会大会  2016/09
  • 高齢者施設における室内環境と健康性に関する調査（第8報）寒冷地における冬期室内温湿度特性  [Not invited]
    大澤元毅, 林基哉, 開原典子, 金勲, 本間義規, 菊田弘輝, 羽山広文, 阪東美智子, 小林健一, 厳爽
    空気調和・衛生工学会大会  2016/09
  • 高齢者施設における室内環境と健康性に関する調査（第7報）小型加湿器による居室の湿度改善に関する試行  [Not invited]
    林基哉, 大澤元毅, 開原典子, 金勲, 阪東美智子, 小林健一
    空気調和・衛生工学会大会  2016/09
  • A Study on the Influence of Dwellers’ Ignorance of Ventilation upon Indoor Air Quality  [Not invited]
    M.Hayashi, H.Osawa, H.Kim
    CLIMA 2016 - Proceedings of the 12th REHVA World Congress  2016/08
  • 事務所建築物に おけるPM2.5濃度の実態と室内外濃度比  [Not invited]
    鍵直樹, 柳宇, 東賢一, 金勲, 林基哉, 開原典子, 大澤元毅
    日本建築学会  2016/08
  • インフルエンザ 感染予防のための絶対湿度と換気量を考慮した空気環境評価方法の検討  [Not invited]
    林基哉, 開原典子, 金勲, 大澤元毅, 阪東美智子, 小林健一
    日本建築学会大会  2016/08
  • 高齢者施設における健康リスク低減のための室内環境衛生管理 その6 寒冷地における冬期の室内温湿度およびCO2濃度の実態  [Not invited]
    開原典子, 林基哉, 大澤元毅, 金勲, 阪東美智子, 小林健一, 本間義規, 厳爽, 菊田弘輝, 羽山広文
    日本建築学会大会  2016/08
  • 高齢者施設における健康リスク低減のための室内環境衛生管理 その5 寒冷地における冬期調査の対象と方法  [Not invited]
    大澤元毅, 林基哉, 開原典子, 金勲, 阪東美智子, 小林健一, 本間義規, 厳爽, 菊田弘輝, 羽山広文
    日本建築学会大会  2016/08
  • Improvement of the Thermal Environment at Japanese Facilities for the Elderly  [Not invited]
    Noriko Kaihara, Motoya Hayashi, Kim Hoon, Michiko Bando, Haruki Osawa
    Indoor Air 2016 Proceedings  2016/07
  • Endotoxin Concentration in House Dust and Indoor Air in Japan  [Not invited]
    Hoon KIM, Eunsu LIM, Naoki Kagi, Kenichi Azuma, Yanagi U, Haruki Osawa, Motoya Hayashi
    Indoor Air 2016 Proceedings  2016/07
  • Analysis of Humidity and Carbon Dioxide Concentration to improve the Indoor Air Quality in Japanese Buildings  [Not invited]
    Motoya Hayashi, Haruki Osawa, Kim Hoon, Yanagi U, Naoki Kagi, Noriko, Kaihara
    Indoor Air 2016 Proceedings  2016/07
  • Matsumura Kotaro, Hayashi Motoya, Kosugi Kenji, Sato Kengo, Mochizuki Shigeto
    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2016
  • 住宅の室内空気質の年特性に関する研究  [Not invited]
    林基哉, 大澤元毅, 金勲
    平成27年室内環境学会学術大会  2015/12
  • 高齢者福祉施設における出張理美容の現状と課題 その2  [Not invited]
    金勲, 阪東美智子, 大澤元毅, 開原典子, 林基哉, 森川美絵, 小林健一
    第44回日本医療福祉設備学  2015/11
  • 高齢者福祉施設における出張理美容の現状と課題 その1  [Not invited]
    阪東美智子, 大澤元毅, 開原典子, 金勲, 林基哉, 森川美絵, 小林健一
    第44回日本医療福祉設備学  2015/11
  • 高齢者施設における出張理美容の実態（第5報）利用者の施術時の体調  [Not invited]
    林基哉, 金勲, 開原典子, 大澤元毅, 阪東美智子, 森川美絵, 小林健一
    第74回日本公衆衛生学会総会  2015/11
  • 高齢者施設における出張理美容の実態（第4報）施術環境と体調  [Not invited]
    金勲, 開原典子, 大澤元毅, 阪東美智子, 林基哉, 森川美絵, 小林健一
    第74回日本公衆衛生学会総会  2015/11
  • 高齢者施設における出張理美容の実態（第3報）利用者と施術内容  [Not invited]
    開原典子, 大澤元毅, 阪東美智子, 金勲, 林基哉, 森川美絵, 小林健一
    第74回日本公衆衛生学会総会  2015/11
  • 高齢者施設における出張理美容の実態（第2報）施設の建築設備と施術空間  [Not invited]
    大澤元毅, 阪東美智子, 開原典子, 金勲, 林基哉, 森川美絵, 小林健一
    第74回 日本公衆衛生学会総会  2015/11
  • 高齢者施設における出張理美容の実態（第1報）全国の特別養護宇老人ホームの理美容 状況  [Not invited]
    阪東美智子, 大澤元毅, 開原典子, 金勲, 林基哉, 森川美絵, 小林健一
    第74回日本公衆衛生学会総会  2015/11
  • 香りの断続的体感が臭気強度と順応に及ぼす影響  [Not invited]
    山田裕己, 長岡廉, 田辺新一, 林基哉
    第39回人間―生活環境系シンポジウム  2015/11
  • 林 基哉
    生活と環境  2015/10  日本環境衛生センター
  • 環境衛生分野に求められる住宅・建築教育への視点 特集 超高齢社会の衛生対策  [Not invited]
    林 基哉
    生活と環境  2015/10
  • 高齢者施設における出張理美容の実態(第5報) 利用者の施術時の体調  [Not invited]
    林 基哉, 金 勲, 開原 典子, 阪東 美智子, 大澤 元毅, 森川 美絵, 小林 健一
    日本公衆衛生学会総会抄録集  2015/10  日本公衆衛生学会
  • 高齢者施設における出張理美容の実態(第4報) 施術環境と体調  [Not invited]
    金 勲, 阪東 美智子, 林 基哉, 開原 典子, 大澤 元毅, 森川 美絵, 小林 健一
    日本公衆衛生学会総会抄録集  2015/10  日本公衆衛生学会
  • 高齢者施設における出張理美容の実態(第3報) 利用者と施術内容  [Not invited]
    開原 典子, 阪東 美智子, 林 基哉, 金 勲, 大澤 元毅, 森川 美絵, 小林 健一
    日本公衆衛生学会総会抄録集  2015/10  日本公衆衛生学会
  • Matsumura Kotaro, Hayashi Motoya, Sato Kengo
    Summaries of technical papers of annual meeting  2015/09  Architectural Institute of Japan
  • INOUE Yoshiyuki
    Summaries of technical papers of annual meeting  2015/09  Architectural Institute of Japan
  • Hayashi Motoya, Honma Yoshinori, Hasegawa Kenichi, Kim Hoon
    Summaries of technical papers of annual meeting  2015/09  Architectural Institute of Japan
  • OSAWA Haruki
    Summaries of technical papers of annual meeting  2015/09  Architectural Institute of Japan
  • KAIHARA Noriko
    Summaries of technical papers of annual meeting  2015/09  Architectural Institute of Japan
  • KIM Hoon
    Summaries of technical papers of annual meeting  2015/09  Architectural Institute of Japan
  • BANDO Michiko
    Summaries of technical papers of annual meeting  2015/09  Architectural Institute of Japan
  • 高齢者施設における室内環境と健康性に関する調査（第6報）出張理美容の施術環境と被施術者の生理量の測定  [Not invited]
    開原典子, 林基哉, 大澤元毅, 金勲, 阪東美智子, 小林健一
    空気調和・衛生工学会大会  2015/09
  • 高齢者施設における室内環境と健康性に関する調査（第5報）出張理美容環境に関する調査概要  [Not invited]
    大澤元毅, 林基哉, 開原典子, 金勲, 阪東美智子, 小林健一
    空気調和・衛生工学会大会  2015/09
  • 高齢者施設における室内環境と健康性に関する調査（第4報）室内温湿度およびCO2濃度を用いた加湿と換気に関する分析  [Not invited]
    林基哉, 金勲, 大澤元毅, 開原典子, 阪東美智子
    空気調和・衛生工学会大会  2015/09
  • 高齢者施設における室内環境と健康性に関する調査（第3報）室内温湿度及びCO2濃度の冬期実測  [Not invited]
    金勲,林基哉, 大澤元毅, 開原典子, 阪東美智子
    空気調和・衛生工学会大会  2015/09
  • 東日本大震災復興住宅の断熱気密性能の実態調査  [Not invited]
    林基哉, 本間義規, 長谷川兼一, 金勲
    日本建築学会大会  2015/09
  • 高齢者施設における健康リスク低減のための室内環境衛生管理 その4 自治体の生活衛生担当部局における取組み  [Not invited]
    阪東美智子, 金勲, 開原典子, 大澤元毅, 林基哉
    日本建築学会大会  2015/09
  • 高齢者施設における健康リスク低減のための室内環境衛生管理 その3 冬期におけるCO2濃度測定結果  [Not invited]
    金勲, 開原典子, 大澤元毅, 阪東美智子, 林基哉
    日本建築学会大会  2015/09
  • 高齢者施設における健康リスク低減のための室内環境衛生管理 その2 冬期の室内温湿度  [Not invited]
    開原典子, 大澤元毅, 金勲, 阪東美智子, 林基哉
    日本建築学会大会  2015/09
  • 高齢者施設における健康リスク低減のための室内環境衛生管理 その1 研究方法と調査対象の概要  [Not invited]
    大澤元毅, 金勲, 阪東美智子, 開原典子, 林基哉
    日本建築学会大会  2015/09
  • サーバルーム天井部における排気再循環の把握に関する研究  [Not invited]
    井上義之, 羽山広文, 森太郎, 菊田弘輝, 豊原範之, 林基哉
    日本建築学会大会  2015/09
  • コンクリート壁の着雪と落雪に関する実験的研究  [Not invited]
    松村光太郎, 林基哉, 佐藤研吾
    日本建築学会大会  2015/09
  • Prediction of Recirculation through Vent Holes on Ceiling in Server Room  [Not invited]
    Yoshiyuki Inoue, Hirofumi Hayama, Taro Mori, Koki Kikuta, Motoya Hayashi, Noriyuki Toyohara
    6th International Building Physics Conference  2015/06
  • 林 基哉, 本間 義規, 長谷川 兼一
    学術・技術報告会論文集 = Collection of papers of the conference  2015/03  空気調和・衛生工学会東北支部
  • 林 基哉
    学術・技術報告会論文集 = Collection of papers of the conference  2015/03  空気調和・衛生工学会東北支部
  • YAMADA Hiromi, NAGAOKA Ren, TANABE Shin-ici, HAYASHI Motoya
    人間-生活環境系シンポジウム報告集  2015  人間-生活環境系会議
     
    The method of odor control has become more and more important for a resident in an airtight house. Olfactory adaptation has now been clarified from the research. However, it is necessary to consider the recovery of ability of the sense of smell based on the breathing of clean air. The purpose of this study was to investigate the effects of intermittent exposure of odor on odor intensity and olfactory adaptation. For the purpose of my work, participants were randomly assigned to two groups, and then they were placed in three odor conditions, which were clean air, constant concentration of hinoki cypress and the intermittent condition of it. In the intermittent condition, after the participants breathed the concentration of hinoki cypress for 5 minutes, they breathed clean air for 5 or 2 minutes. While those tests were carried out, the participants were put through to subjective evaluation, odor intensity and comfort. The result of the constant concentration, factory adaptation was indicated immediately. And with regards to the condition of intermittent exposure, the ability of the sense of smell recovered because of breathing clean air for only 2 minutes.
  • Matsumura Kotaro, Hayashi Motoya, Kosugi Kenji, Sato Kengo, Mochiduki Shigeto
    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2015  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering
  • 開原 典子, 林 基哉, 大澤 元毅, 金 勲, 阪東 美智子, 小林 健一
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2015  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     

    本研究では、老人福祉施設を対象に出張理容・出張美容の実態を明らかにし、より適切に実施していくために必要な留意事項を施術場所と施術内容の関係から整理することを目的としている。本報では、首都圏の6施設86名を対象に、理美容の施術空間の現状把握及び知見整備を目的とした空気温湿度と生理量（体温, 血圧, 脈拍, 唾液アミラーゼ, 酸素飽和度）調査を行ったのでその結果を報告する。

  • 金 勲, 林 基哉, 大澤 元毅, 開原 典子, 阪東 美智子
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2015  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     

    The five care welfare facilities for the elderly were surveyed on temperature, humidity and CO2 concentration. As a result, temperature and CO2 concentration had been generally well managed. Meanwhile, CO2 concentrations showed that there was a significant difference in the amount of ventilation depending on facilities. Despite efforts of facilities for humidification, they could not meet 40%RH of relative humidity in winter.

  • 大澤 元毅, 林 基哉, 金 勲, 開原 典子, 阪東 美智子, 小林 健一
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2015  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     

    施設に住む高齢者のための出張理美容は、店舗営業に比べて実施形態や施術環境が多様なため、その知見整備が遅れている。本研究は、出張理美容が導入された施設での調査により現状と課題を明らかにし、建築・設備計画およびその衛生的・効率的運用の改善に資する情報の整備を図る。調査対象施設における理容・美容機能に焦点をあて、概要と施術の建築環境・仕様に関する資料を取りまとめ、平面計画・寸法・仕上げ等について考察を加え報告する。

  • 林 基哉, 金 勲, 大澤 元毅, 開原 典子, 阪東 美智子
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2015  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     

    The ventilation characteristics were investigated using the measured indoor temperatures, humidity and concentrations of carbon dioxide in facilities for elderly in winter. In this study, the ventilation characteristics were analyzed in order to make the humidity enough high for the elderly. This study showed that both of the control of ventilation rate and humidifier are required in these facilities.

  • 高齢者施設における臭気環境及び管理状況に関する全国調査  [Not invited]
    金勲, 阪東美智子, 大澤元毅, 林基哉
    室内環境学会学術大会  2014/12
  • 東日本大震災の省エネルギー型復興住宅の設計支援ツール  [Not invited]
    林基哉, 本間義規, 吉野博, 東日本大震災の省エネルギー型復興住宅の設計支援ツール
    室内環境学会学術大会  2014/12
  • 建築物の壁における着雪と壁界面の温度状況に関する実験的研究―木造下見板とタイル張り仕上げ―  [Not invited]
    松村光太郎, 林基哉, 佐藤研吾, 小杉健二, 望月重人
    雪氷研究大会  2014/09
  • 生活科学系学科の建築教育における数学の必要性に関する一考察  [Not invited]
    松村光太郎, 林基哉, 飯淵康一
    日本建築学会大会  2014/09
  • 真菌の断熱材内透過に関する研究 断熱材内部の真菌採取法と透過率の測定  [Not invited]
    山田裕巳, 林基哉, 大澤元毅, 長谷川兼一, 本間義規
    日本建築学会大会  2014/09
  • 基礎断熱した床下空間の浮遊真菌濃度に与える構成部材含水率の影響  [Not invited]
    本間義規, 林基哉, 長谷川兼一, 大澤元毅, 山田裕巳
    日本建築学会大会  2014/09
  • パッシブ換気住宅における薪ストーブ利用時の室内環境調査  [Not invited]
    菊田弘輝, 尾身佳樹, 長谷川兼一, 林基哉
    日本建築学会大会  2014/09
  • A Field Study on Biological Pollution and Its Environmental Factors -Mould and Mite on the Interior Surface in Winter and Summer  [Not invited]
    Haruki OSAWA, Motoya HAYASHI
    THE INTERNATIONAL CONFERENCE ON INDOOR AIR QUALITY AND CLIMATE  2014/07
  • A Field Study on Biological Pollution and its Environmental Factors -Annual Change of Mould and Mite in the Indoor Air and on Interior Surface  [Not invited]
    Motoya HAYASHI, Haruki OSAWA
    THE INTERNATIONAL CONFERENCE ON INDOOR AIR QUALITY AND CLIMATE  2014/07
  • PREDICTION OF INDOOR AIR QUALITY IN HOUSES WITH CONCENTRATION- CONTROL- VENTILATION SYSTEMS CONSIDERING THE CONCEALED AIR LEAKS AND DWELLERS OPENING BEHAVIOUR  [Not invited]
    Motoya Hayashi, Haruki Osawa
    13th International Building Performance Simulation Association Conference and Exhibition “ Building Simulation 2013  2013/08
  • The Relationships Between the Indoor Air Pollution and the Air Quality in the Crawl Space Using Full-Scale Experimental House  [Not invited]
    Yoshinori HONMA, Motoya HAYASHI, Kenichi HASEGAWA, Haruki OSAWA, Hiromi YAMADA
    The 11th REHVA World Congress & 8th International Conference IAQVEC  2013/06
  • Experiments on a Method to Measure Mold Concentration in a Wall Cavity Using a Teflon Tube  [Not invited]
    Hiromi Yamada, Motoya Hayashi, Haruki Osawa, Kenichi Hasegawa, Yoshinori Honma
    11th REHVA World Congress & 8th International Conference on IAQVEC  2013/06
  • Experiments on Infiltration of Mold from Crawl Space under the Prefabricated Bathroom  [Not invited]
    Haruki Osawa, Kenichi Hasegawa, Yoshinori Honma, Hiromi Yamada
    11th REHVA World Congress & 8th International Conference on IAQVEC  2013/06
  • TAKAKI Rie
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2009/07  Architectural Institute of Japan
  • HONMA Yoshinori, HAYASHI Motoya, HASEGAWA Kenichi, OSAWA Haruki
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2009/07  Architectural Institute of Japan
  • TAKAKI Rie, YOSHINO Hiroshi, ANDO Naoya, LU Yang, TANABE Shin-ichi, HASEGAWA Kenichi, HAYASHI Motoya
    日本建築学会東北支部研究報告集. 計画系  2009/06  Architectural Institute of Japan
  • FUJIKAWA Mitsutoshi, YOSHINO Hiroshi, TAKAKI Rie, OKUYAMA Hiroyasu, HAYASHI Motoya, SUGAWARA Masanori
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2009  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    An experiment for ventilation was carried out in a full-scale test house. This series of studies aims to examine the ventilation measurement method via human expiration. The adopted method is able to measure multi-zone airflow rates. Airflow rate between rooms was controlled and outdoor airflow rate was measured with the test house. The rate of outdoor airflow entering the house and the airflow rate between the rooms were estimated by the ventilation measurement method via artificially provided CO_2 as simulated human expiration based on system identification theory. The estimated results were compared with the measurement results in order to validate its accuracy.
  • リフォーム時に発生する化学物質による室内空気汚染に関する研究  [Not invited]
    野崎 淳夫, 山下 祐希, 成田 泰章, 林 基哉, 小椋 利文, 大澤 元毅
    臨床環境医学  2008/12  日本臨床環境医学会
  • FUJIKAWA Mitsutoshi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2008/07  Architectural Institute of Japan
  • SUGAWARA Masanori, HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2008/07  Architectural Institute of Japan
  • OSAWA Haruki, HAYASHI Motoya, HASEGAWA Kenichi, HONMA Yoshinori
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2008/07  Architectural Institute of Japan
  • TAKAKI Rie
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2008/07  Architectural Institute of Japan
  • NOZAKI Atsuo, YAMASHITA Yuki, NARITA Yasunori, OGURA Toshifumi, HAYASHI Motoya, OSAWA Haruki
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2008/07  Architectural Institute of Japan
  • リフォーム時に発生する化学物質による室内空気汚染に関する研究  [Not invited]
    野崎 淳夫, 山下 祐希, 成田 泰章, 林 基哉, 小椋 利文, 大澤 元毅
    日本臨床環境医学会総会プログラム・抄録集  2008/07  日本臨床環境医学会
  • SUGAWARA Masanori, ENDO Chiyori, HAYASHI Motoya
    日本建築学会東北支部研究報告集. 計画系  2008/06  Architectural Institute of Japan
  • SUGAWARA Masanori, KOMATSUDA Ayako, HAYASHI Motoya
    日本建築学会東北支部研究報告集. 計画系  2008/06  Architectural Institute of Japan
  • Li Yang, Yoshino Hiroshi, Takaki Rie, Nakamura Aki, Tanabe Shinichi, Hasegawa Kenichi, Hayashi Motoya
    日本建築学会東北支部研究報告集. 計画系  2008/06  Architectural Institute of Japan
  • OSAWA Haruki, HAYASHI Motoya
    Journal of Japan Air Cleaning Association  2008/05  日本空気清浄協会
  • HASEGAWA Kenichi, HAYASHI Motoya, HONMA Yoshinori, OSAWA Haruki
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2008  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    The indoor concentration of airborne fungi is usually associated with mold growth on the surfaces of walls, floors and so on. Mold growing in the concealed spaces of walls cannot be ignored as a source of such emissions, however. Mold growing in crawl spaces may move through concealed spaces in walls power outlets and so on. This paper describes results of a one-year investigation of airborne fungi in a crawl space in eighteen detached houses located in a northern Japanese city.
  • NOZAKI Atsuo, YAMASHITA Yuki, OGURA Toshifumi, HAYASHI Motoya, OSAWA Haruki
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2008  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    When a building is being remodeled, the chemical substance revelation by both the builder and the resident is a problem. The emission of chemical substances from plywood and adhesive by building materials removed during remodeling rises. However, the concentration of indoor chemical substances during remodeling is presently unknown. In this study, we investigated the emission rate of chemical substances and their emission characteristics during remodeling, by using the test piece of the floor, wall and ceiling.
  • 林 基哉
    生活環境科学研究所研究報告  2008  宮城学院女子大学生活環境科学研究所
  • Development of Ventilation Measurement Method Using Human Expiration- Experimental Study for Estimation Accuracy-  [Not invited]
    Mitsutoshi Fujikawa, Hiroshi Yoshino, Rie Takaki, Hiroyasu Okuyama, Motoya Hayashi, Masanori Sugawara
    Proceedings of The 6th International Conference on Indoor Air Quality, Ventilation & Energy Conservation in Buildings (IAQVEC)  2007/10 
    Sendai, Japan, Oct.28-31, 2007
  • HAYASHI Motoya, OSAWA Haruki, KUSAKA Aya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2007/07  Architectural Institute of Japan
  • FUJIKAWA Mitsutoshi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality  2007/07  Architectural Institute of Japan
  • MATSUI Miyuki, HAYASHI Motoya, OSAWA Haruki
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2007/07  Architectural Institute of Japan
  • OSAWA Haruki, HAYASHI Motoya, KUSAKA Aya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2007/07  Architectural Institute of Japan
  • KUSAKA Aya, OSAWA Haruki, HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2007/07  Architectural Institute of Japan
  • SUGAWARA Masanori, IWAMA Satomi, HAYASHI Motoya
    日本建築学会東北支部研究報告集. 計画系  2007/06  Architectural Institute of Japan
  • SUGAWARA Masanori, HAYASHI Motoya
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2007  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    We study property of window operation in the detached houses under various climates from Hokkaido to Shikoku.A regression equation using a cumulative Gaussian distribution function, is obtained from relationship between room air temperature and window opening time rate. Its average and standard deviation show almost the same properties about living rooms and the difference depend on how many people are in a household and which region the house is placed.
  • FUJIKAWA Mitsutoshi, YOSHINO Hiroshi, TAKAKI Rie, OKUYAMA Hiroyasu, HAYASHI Motoya, SUGAWARA Masanori
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2007  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    An experiment for ventilation was carried out in a full-scale test house. The aim of this study was to examine the ventilation measurement method via human expiration. The adopted method is able to measure multi-zone airflow rates. Airflow rate between rooms was controlled and outdoor airflow rate was measured with the test house. The rate of outdoor airflow entering the house and the airflow rate between the rooms were estimated by the ventilation measurement method via human expiration based on system identification theory. The estimated results were compared with the measurement results in order to validate its accuracy.
  • Prediction of air quality considering the concealed air leaks of houses  [Not invited]
    Motoya Hayashi, Haruki Osawa, Yoshinori Honma, Miyuki Matsui
    BUILDING SIMULATION 2007, VOLS 1-3, PROCEEDINGS  2007  TSINGHUA UNIV PRESS
     
    In this study. the characteristics of the movement of chemical compounds in the concealed spaces and indoor spaces In houses were investigated using building cut models and a simulation prop-ram Fresh2006. The equivalent leakage areas in the concealed spaces were measured using cut models of wooden structures: a common wooden structure, an improved wooden structure and a wooden (2 inch x 4 inch) stud structure. The movements of chemical compounds were calculated using the measured equivalent leakage areas and the simulation program. The indoor concentrations of the chemical compounds which volatilized in concealed spaces change with the weather and the behaviors of residents. The infiltration ratios from the concealed spaces to indoor spaces were influenced by mechanical ventilation. The influence of the infiltration upon the indoor air quality was larger in the house with an exhaust ventilation system than with any other ventilation system.
  • 林 基哉
    IBEC  2007/01  建築環境・省エネルギー機構
  • OSAWA Haruki, HAYASHI Motoya, KUSAKA Aya
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2007  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    In order to know the influence of living style and building performance upon the indoor pollution with mould and mites,the number of mould on the interior surface and in the air, the numbers of mites on the floor and the amounts of allergens were measured in twelve houses during a year. The results showed the followings. The number of mould in the air and thenumber of mites on the floor changed with the temperature and the humidity. The amounts of allergen with mites changed with the number of mite. The numbers of moulds on the surface did not change with the thermal conditions. These results proved the results of the measurements which were made with about two hundred houses in summer and in winter.
  • HAYASHI Motoya, IGARASHI Makoto, OOSHIMA Mitsunari
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2007  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    In order to clear the thermal performance of a house with passive heating, the indoor climate and the flow of energy were investigated using a simulation program and a demonstration house in Yamanashi prefecture. The measurements through a year showed the following results. The equivalent leakage area was 0.5cm^2/m^2. The indoor temperature had been kept above 20 degC almost all time in winter with the use of electric power and the direct gain from sunlight. The heat loss coefficient was almost the same as the calculated coefficient :0.74W/m^2K.
  • 仙台市の住宅における環境調整行動と室内空気質の年間計測  [Not invited]
    菅原 正則, 林 基哉
    臨床環境医学  2006/12  日本臨床環境医学会
  • 天井裏等の内部空間からの汚染物質室内侵入の実態  [Not invited]
    林 基哉, 大澤 元毅
    臨床環境医学  2006/12  日本臨床環境医学会
  • 仙台市の住宅における環境調整行動と室内空気質の年間計測  [Not invited]
    菅原 正則, 林 基哉
    日本臨床環境医学会総会プログラム・抄録集  2006/07  日本臨床環境医学会
  • 天井裏等の内部空間からの汚染物質室内侵入の実態  [Not invited]
    林 基哉, 大澤 元毅
    日本臨床環境医学会総会プログラム・抄録集  2006/07  日本臨床環境医学会
  • EXPERIMENTAL STUDY ON HYBRID VENTILATION SYSTEM PERFORMANCE OF A DETACHED HOUSE IN COLD CLIMATE  [Not invited]
    Hiroshi Yoshino, Sounghun Yun, Motoya Hayashi, Hiromi Yamada, Rie Takaki
    The 5th International Conference on Cold Climate Heating, Moscow  2006/05
  • HAYASHI Motoya, OSAWA Haruki, KUSAKA Aya
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2006  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    The infiltration ratios from the concealed spaces to the indoor spaces were measured using tracer gas method in nine detached houses. When the indoor was decompressed by ventilation, the infiltration ratio was high. The infiltration ratios from the beam spaces were very high and those from the crawl spaces were not low. These results showed that it is necessary to prevent the infiltration of pollutants from the concealed spaces to the indoor spaces.
  • HAYASHI Motoya, OSAWA Haruki, MATSUI Miyuki
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2006  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    In order to estimate the influences of air pollutants from the concealed spaces upon the indoor air quality, a slice model of airtight wooden structure and slice models of an airtight 2x4 structure were constructed in a laboratory. The equivalent leakage areas were measured using fans and mass flow controllers. The equivalent leakage areas in these airtight models were smaller than those in the common wooden structures. Therefore the concealed spaces are connected well in the case of the airtight wooden structure.
  • SASAKI Takashi, HONMA Yoshinori, UCHIDA Shinpei, HAYASHI Motoya, ISHIDA Hideki
    日本雪工学会誌 : journal of snow engineering  2005/07
  • SASAKI Takashi, HONMA Yoshinori, UCHIDA Shinpei, HAYASHI Motoya, ISHIDA Hideki
    日本雪工学会誌 : journal of snow engineering  2005/07
  • SUGAWARA Masanori, MASAYA Aiko, HAYASHI Motoya
    日本建築学会東北支部研究報告集. 計画系  2005/06  Architectural Institute of Japan
  • YUN Sounghun, YOSHINO Hiroshi, HAYASHI Motoya, YAMADA Hiromi, TAKAKI Rie
    日本建築学会東北支部研究報告集. 計画系  2005/06  Architectural Institute of Japan
  • HAYASHI Motoya, OSAWA Haruki, MATSUI Miyuki
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2005  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
     
    In order to estimate the influences of air pollutants from the concealed spaces to the indoor air quality, a slice model of Japanese common wooden structure was constructed in a laboratory. The model has two rooms on the first floor and two rooms on the second floor and also has a crawl space and two beam spaces. The equivalent leakage areas were measured using a multi fan system. The equivalent leakage areas between the concealed spaces were larger than those between the indoor spaces and the concealed spaces. The concealed spaces in the structure are connected very well.
  • 田辺 新一, 林 基哉
    日本建築学会技術報告集  2005  日本建築学会
  • 林 基哉
    IBEC  2004/11  建築環境・省エネルギー機構
  • SUGAWARA Masanori, HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2004/07  Architectural Institute of Japan
  • YAMADA Hiromi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2004/07  Architectural Institute of Japan
  • TAKAKI Rie, YOSHINO Hiroshi, HAYASHI Motoya, TAMURA Kazumi, NOMURA Akihiro
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2004/07  Architectural Institute of Japan
  • HONMA Yoshinori, HAYASHI Motoya, OSAWA Haruki
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2004/07  Architectural Institute of Japan
  • HAYASHI Motoya, OSAWA Haruki, HONMA Yoshinori
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2004/07  Architectural Institute of Japan
  • SUGAWARA Masanori, TAKAHASHI Nozomi, HAYASHI Motoya
    日本建築学会東北支部研究報告集. 計画系  2004/06  Architectural Institute of Japan
  • HAYASHI Motoya
    日本建築学会東北支部研究報告集. 計画系  2004/06  Architectural Institute of Japan
  • TAKAKI Rie, YOSHINO Hiroshi, HAYASHI Motoya, TAMURA Kazumi, NOMURA Akihiro
    日本建築学会東北支部研究報告集. 計画系  2004/06  Architectural Institute of Japan
  • 林 基哉
    IBEC  2004/03  建築環境・省エネルギー機構
  • Yoshino Hiroshi, Takaki Rie, Hayashi Motoya, Tamura Kazumi, Niwa Kiyomi, Nomura Akihiro
    Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  2004  The Society of Heating, Air-Conditioning & Sanitary Engineers of Japan
     
    This paper describes a study on the performance evaluation of a hybrid ventilation system with a heat exchanger. This system has two passive stacks and a heat exchange unit, which includes a heat exchange element, a supply fan, an exhaust fan and a bypass route with a damper. In order to evaluate the system performance, the experiments using a full-scale test house and the numerical simulations have been performed in winter and mid seasons. The ventilation rate and the heat recovery rate under the various conditions of the fan and the damper operation were measured. The results of the experiments are as follows. 1) The leakage in heat exchanger is very small, but the leakage rate when only exhaust fan is used is larger than another condition. 2) In case of the passive ventilation, the ventilation airflow rate is insufficient, and the reversal flow in the supply duct occurs. 3) When the supply fan is not operated in winter, the ventilation airflow rate to the 2nd floor rooms is insufficient. 4) When either the supply fan or the exhaust fan is operated, the ventilation airflow rate is more than 0.5 times per hour.
  • OSAWA Haruki, IKEDA Koichi, HAYASHI Motoya, KOJIMA Takaya, MANABE Jun, NAkABAYASIH Yoshiyuki
    Journal of Environmental Engineering (Transactions of AIJ)  2004  Architectural Institute of Japan
     
    The purpose of this research is to know the present status of the indoor air VOC pollution in Japanese houses. From the measured indoor concentrations and the questionnaire results from five thousand householders, the following results were obtained. 1. In 12.3% of the houses, the concentrations of toluene exceeded the guideline established by the Ministry of Health, Labor and Welfare of Japanese Government. And those of xylene and ethyl-benzene were 0.13% and 0%. 2. The concentrations in houses with ventilation systems were the same as those in houses without ventilation systems. 3. The structure types, the number of floors and the regions are considered as the main factors of concentrations.
  • YAMADA Hiromi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2003/07  Architectural Institute of Japan
  • OUSAWA Haruki, HAYASHI Motoya, HONMA Yoshinori
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2003/07  Architectural Institute of Japan
  • HAYASHI Motoya, OUSAWA Haruki, HONMA Yoshinori
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2003/07  Architectural Institute of Japan
  • TAKAKI Rie, YOSHINO Hiroshi, HAYASHI Motoya, LEE Joonghoon, TAMURA Kazumi, NIWA Kiyomi, NOMURA Akihiro
    日本建築学会東北支部研究報告集. 計画系  2003/06  Architectural Institute of Japan
  • 土屋 喬雄, 林 基哉
    日本建築学会技術報告集  2003  日本建築学会
  • SATO Shigeyuki, HIROKAWA Yoshiko, BOUGAKI Kazuaki, KUWASAWA Yasuo, HAYASHI Motoya, KONDO Seiji
    Journal of Architecture and Planning (Transactions of AIJ)  2003  Architectural Institute of Japan
     
    In this study, the VOCs emission was investigated during the interior finish work in two apartment houses under construction. To confirm the results of the VOCs emission, the concentrations of the VOCs were measured for a week in other apartment houses. The concentration of methyl alcohol emitted from wood-based panels was the highest of all the concentrations of the VOCs detected in the houses. The emission rates of VVOCs such as pentane, hexane became g/hr order in the process of fixing interior panels to the walls, but after construction, these compounds did not remain indoors. Compared with the guideline values of indoor air quality in Japan, the levels of toluene and xylene were higher both under and after construction.
  • HAYASHI Motoya, OSAWA Haruki
    Journal of Environmental Engineering (Transactions of AIJ)  2003  Architectural Institute of Japan
     
    The purpose of this research is to know the influence of chemical emission from the concealed building materials upon the indoor air quality in Japanese houses with exhaust ventilation systems. From the investigations using a test house, a partial structure model and small chambers, the following results were obtained. 1. The emission rates of formaldehyde from the concealed materials were not lower than those from the interior materials. 2. The formaldehyde infiltrated into the indoor space through the leaks and the infiltration rates of formaldehyde changed with the temperatures.
  • SATO Shigeyuki, HIROKAWA Yoshiko, BOUGAKI Kazuaki, KUWASAWA Yasuo, HAYASHI Motoya, KONDO Seiji
    Journal of Environmental Engineering (Transactions of AIJ)  2003  Architectural Institute of Japan
     
    The characteristics of VOCs emission in wooden houses were investigated using an environmental large chamber. A small-scale wooden house was built in the chamber and the concentrations of VOCs, the ventilation rate were measured. And VOCs contents in building materials were measured. On the bases of these measurements, the following mentions were obtained. 1) The indoor temperatures increased the permeability of VOCs such as ethylbenzene, 1,2,4-trimetylbenzene, n-decane from the caulking compounds on the external wall into the indoor space. 2)The indoor temperature did not influence upon the permeability of VVOCs such as methyl alcohol, acetaldehyde.
  • OSAWA Haruki, IKEDA Koichi, HAYASHI Motoya, KUWASAWA yasuo, MANABE Jun, NAKABAYASHI Yoshiyuki
    Journal of Environmental Engineering (Transactions of AIJ)  2003  Architectural Institute of Japan
     
    The purpose of this research is to know the present status of the indoor air chemical pollution by VOCs in Japanese houses in 2000. The concentrations of formaldehyde, toluene, xylene and ethylbenzene were measured in five thousand houses, and the following results were obtained. 1) In 27.3% of surveyed houses, the indoor concentrations of formaldehyde exceeded the guideline established by the Ministry of health, labor and welfare of Japanese Government. And those of toluene, xylene and ethylbenzene were 12.3, 0.013 and 0% respectively. 2) The formaldehyde concentrations correlated well to the indoor temperatures. 3) The averages of the formaldehyde concentrations in houses according to the age of year after construction were analyzed, and the concentration in houses built after 1997 was lower than that in 1996, which showed the highest value.
  • HAYASHI Motoya, SASAKI Takashi, SUGAWARA Masako, UOZUMI Megumi
    日本建築学会東北支部研究報告集. 計画系  2002/06  Architectural Institute of Japan
  • SASAKI Takashi, HAYASHI Motoya, HIROKAWA Yoshiko
    日本建築学会東北支部研究報告集. 計画系  2002/06  Architectural Institute of Japan
  • TAKAKI Rie, YOSHINO Hiroshi, HAYASHI Motoya, LEE Joonghoon, TAMURA Kazumi, NIWA Kiyomi
    日本建築学会東北支部研究報告集. 計画系  2002/06  Architectural Institute of Japan
  • HASEGAWA Ken-ichi, HAYASHI Motoya, SUNAGA Nobuyuki
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2002/06  Architectural Institute of Japan
  • LEE Joonghoon, YOSHINO Hiroshi, HAYASHI Motoya, TAKAKI Rie, TAMURA Kazumi, NIWA Kiyomi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2002/06  Architectural Institute of Japan
  • TAKAKI Rie, YOSHINO Hiroshi, HAYASHI Motoya, LEE Joonghoon, TAMURA Kazumi, NIWA Kiyomi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2002/06  Architectural Institute of Japan
  • HAYASHI Motoya, HIROKAWA Yoshiko, SAITO Chie, KUBOTA Yuka
    日本建築学会近畿支部研究報告集. 環境系  2002/05  Architectural Institute of Japan
  • 日本における化学物質過敏症に関するアンケート調査  [Not invited]
    北條 祥子, 吉野 博, 西野 善一, 林 基哉, 角田 和彦, 石川 哲
    臨床環境医学  2001/12  日本臨床環境医学会
  • 林 基哉
    IBEC  2001/09  建築環境・省エネルギー機構
  • YAMADA Hiromi, HAYASHI Motoya, TANABE Shin-ichi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2001/07  Architectural Institute of Japan
  • NEMOTO Takaaki
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2001/07  Architectural Institute of Japan
  • MURAKAMI Tsuyoshi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2001/07  Architectural Institute of Japan
  • SUZUKI Takeshi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  2001/07  Architectural Institute of Japan
  • HAYASI Motoya, HOJO Sachiko, YOSINO Hiroshi
    日本建築学会東北支部研究報告集. 計画系  2001/06  Architectural Institute of Japan
  • HIROKAWA Yoshiko, BOGAKI Kazuaki, SATO Shigeyuki, HAYASHI Motoya, KONDO Seiji, SAITO Chie
    日本建築学会近畿支部研究報告集. 環境系  2001/05  Architectural Institute of Japan
  • YAMADA Hiromi, HAYASHI Motoya, TANABE Shin-ichi
    日本建築学会近畿支部研究報告集. 環境系  2001/05  Architectural Institute of Japan
  • 佐々木 隆, 菅原 正子, 魚住 恵, 林 基哉
    Bulletin of Morioka Junior College, Iwate Prefectural University  2001/03  岩手県立大学盛岡短期大学部
     
    This report is a summary of the investigation result of the living life in summer. As for the result of the mailing questionnaire survey, it has been understood that correspondence to the indoor heat is done by an environmental adjustment by ventilation. The use of the dehumidification machine stood out remarkably in Kuji where the influence of "YAMASE" was especially large the existence of mold. The use of the dehumidification machine stood out also in Morioka in the city part. It has been understood that there is few house where air-conditioning as a result of the investigation. And, there are not necessarily a lot of regions where air-conditioning is needed. This result shows the problem in the plan with a lot of dependence on air-conditioning device at a present, and shows that the succession of the tradition does not go well. As for the indoor temperature of the shape house of the present age of insulated shortage, it has been understood to tend higher room temperature than the outdoor from the measurement result of the indoor environment. The room temperature rise by solar radiation is suppressed in the effect of the super-insulation of the roof in old traditional thatched private house .In the life by ventilation mainly done, the outdoor temperature often controls the room temperature. It is obviously that the thermal performance of house, which the insolation through the window has been covered and well insulated and high-airtightend is high, when the room temperatures are lower than the outside temperature. The author excluded, defined the value by an insolation value as the insolation room temperature rise efficiency, and arranged inside and outside temperatures fluctuate by the standard deviations a result, the value has grown in an insulated house where the insolation cover is inconsistent and the shape house of the present age of insulated shortage. The value was small in insulated and airtightend house where a thorough insolation had been covered. The authors have taken the conclusion basing on the questionnaire survey result obtained above that there was a cause in condition of life if there was a room temperature rise in an insulated house, and is no necessity of air-conditioning of the house in Iwate Pref.
  • 菅原 正子, 佐々木 隆, 魚住 恵, 林 基哉
    Bulletin of Morioka Junior College, Iwate Prefectural University  2001/03  岩手県立大学盛岡短期大学部
     
    This is one of the studies based on the idea that the synthetic evaluation of clothing, eating and living environment is necessary in order to improve the performance of the general houses in Iwate Prefecture and to realize good energy saving. On the actual condition of the clothing life, its relation with the living environment, which is the base of the life, is a matter for much consideration. To pursue a more comfortable and safer clothing life and to study the improvement of the clothing life is important in a society with a lot of elderly people. The previous study was on the clothing, eating and living environment in winter. And this study focuses on the relationship of temperature and indoor conditions with the clothing life in summer. The results of the investigation show that the clothing life is much influenced by the living environment. In Iwate Prefecture, "to break the barrier of temperature" will make the clothing life safe and very comfortable.
  • 魚住 恵, 佐々木 隆, 菅原 正子, 林 基哉
    Bulletin of Morioka Junior College, Iwate Prefectural University  2001/03  岩手県立大学盛岡短期大学部
     
    We, the authors, conducted a survey focused on the interior climate and food customs of homes in summer. Along with the survey, we measured indoor temperatures, and conducted detailed research on the eating habits of Iwate's residents. 1. From the questionnaire survey we guessed that the job for living, a family composition and a private farm products were related to the type of their meal. 2. It was thought that the correlation seen between the concentration of salt in soup which temperatures fluctuate in winter and the resident in the house were taking had exerted the influence on the food custom in summer. 3. The main cause of the difference of each kitchen temperature, when the kitchen in daytime of summer was used, is solar radiation. 4. In Iwate Pref., it was admitted that the indoor temperature might be higher than the outside temperature degree in daytime of summer. 5. On the kitchen of summer, it is necessary to think about the structure of the house in order that the temperature of the kitchen does not rise because of the heat generated from cooking.
  • 岩手県における冬季住宅環境と食生活  [Not invited]
    魚住 恵, 佐々木 隆, 菅原 正子, 林 基哉
    岩手公衆衛生学会誌  2001/02  岩手公衆衛生学会
  • 林 基哉
    日本建築学会技術報告集  2001  日本建築学会
  • UOZUMI Megumi, SASAKI Takashi, SUGAWARA Masako, HAYASHI Motoya
    日本雪工学会大会論文報告集  2000/12
  • SUGAWARA Masako, SASAKI Takashi, UOZUMI Megumi, HAYASHI Motoya
    日本雪工学会大会論文報告集  2000/12
  • SASAKI Takashi, SUGAWARA Masako, UOZUMI Megumi, HAYASHI Motoya
    日本雪工学会大会論文報告集  2000/12
  • HIROKAWA Yoshiko, SHIBATA Emi, BOGAKI Kazuaki, HAYASHI Motoya, SATO Shigeyuki, KONDO Seiji
    日本建築学会近畿支部研究報告集. 環境系  2000/05  Architectural Institute of Japan
  • 佐藤 重幸, 廣川 美子, 坊垣 和明, 林 基哉, 伊藤 宏, 近藤 誠治, 柴田 江美
    東海支部研究報告集  2000/02  Architectural Institute of Japan
  • YAMADA Hiromi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality  1999/07  Architectural Institute of Japan
  • HAYASHI Motoya, HIROKAWA Yoshiko, YAMADA Hiromi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality  1999  Architectural Institute of Japan
  • SHIMIZU Tsutomu, HAYASHI Motoya, YAMADA Hiromi, NAKAO Tadashi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality  1998/07  Architectural Institute of Japan
  • YAMADA Hiromi, HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  1998/07  Architectural Institute of Japan
  • YAMADA Hiromi
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  1998  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
  • 山田 裕巳, 上原 浩二, 林 基哉
    人間-生活環境系シンポジウム報告集  1998  人間-生活環境系会議
  • HAYASHI Motoya
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  1998  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
  • HAYASHI Motoya, YAMADA Hiromi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  1997/07  Architectural Institute of Japan
  • YAMADA Hiromi, HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  1997/07  Architectural Institute of Japan
  • 林 基哉
    建築技術  1997/07  建築技術
  • YAMADA Hiromi, HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  1996/07  Architectural Institute of Japan
  • HAYASHI Motoya, YAMADA Hiromi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  1996/07  Architectural Institute of Japan
  • YAMADA Hiromi, HAYASHI Motoya, YOSHIOKA Yoshihisa
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  1995/07  Architectural Institute of Japan
  • HAYASHI Motoya, YAMADA Hiromi, YOSHIOKA Yoshihisa
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D-2, Environmental engineering II, Heat, moisture, thermal comfort, natural energy, air flow, ventilation, smoke exhaustion, computational fluid dynamics, indoor air quality heating, cooling and air-conditioning heat and cold sources, piping systems application of building services  1995/07  Architectural Institute of Japan
  • HAYASHI Motoya, ARATANI Noboru, SASAKI Takashi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1994/07  Architectural Institute of Japan
  • YOSHIDA Motoki, YAMAMOTO Soujirou, MARUTANI Youko, HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1994/07  Architectural Institute of Japan
  • HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1993/07  Architectural Institute of Japan
  • YOKOE Mitsuo
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1992/08  Architectural Institute of Japan
  • HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1992/08  Architectural Institute of Japan
  • 今西 豊, 池永 徹博, 荒谷 登, 絵内 正道, 林 基哉
    日本建築学会北海道支部研究報告集  1992/03  日本建築学会
  • 池永 徹博, 絵内 正道, 荒谷 登, 今西 豊, 林 基哉
    日本建築学会北海道支部研究報告集  1992/03  日本建築学会
  • 林 基哉, 荒谷 登
    日本建築学会北海道支部研究報告集  1992/03  日本建築学会
  • 佐々木 隆, 林 基哉
    日本建築学会北海道支部研究報告集  1992/03  日本建築学会
  • ISHIDA Ken-ichi, KAMATA Motoyasu, CHIDA Yoshitaka, HOSHIKAWA Kunihiko, HAYASHI Motoya
    Journal of Architecture, Planning and Environmental Engineering (Transactions of AIJ)  1992  Architectural Institute of Japan
     
    In this paper we present a simplified calculation method of the house infiltration rates with the building air tightness. The characteristic of the method is able to estimate the infiltration rates for combination of out door wind speed and indoor-outdoor temperatuer difference. The proposed calculation method was tested using the measured infiltration data of a experimental house for a year. A results of the comparison between the calculations and measurements showed that the agreement between the prediction and the measurement was also within 0.1 volume par hour.
  • 山本 忠司, 絵内 正道, 池永 徹博, 荒谷 登, 赤木 一郎, 林 雅也, 林 基哉
    建築雑誌. 建築年報  1991/09  日本建築学会
  • Ikenaga Tetsuhiro
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1991/08  Architectural Institute of Japan
  • 山本 忠司, 絵内 正道, 池永 徹博, 荒谷 登, 赤木 一郎, 林 雅也, 林 基哉
    日本建築学会北海道支部研究報告集  1991/03  日本建築学会
  • 赤木 一郎, 芥川 郁雄, 林 基哉, 佐々木 隆, 荒谷 登
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1990/09  Architectural Institute of Japan
  • ISHIDA Ken-ichi
    Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan  1990  The Society of Heating,Air-Conditioning&Sanitary Engineers of Japan
  • 赤木 一郎, 荒谷 登, 佐々木 隆, 林 基哉, 芥川 郁雄
    建築雑誌. 建築年報  1989/09  日本建築学会
  • HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1989/09  Architectural Institute of Japan
  • 林 基哉, 佐々木 隆, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1989/03  日本建築学会
  • 赤木 一郎, 荒谷 登, 佐々木 隆, 林 基哉, 芥川 郁雄
    日本建築学会北海道支部研究報告集. 計画系  1989/03  日本建築学会
  • 林 基哉
    建築雑誌. 建築年報  1988/09  一般社団法人日本建築学会
  • 林 基哉, 佐々木 隆, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1988/03  日本建築学会
  • 林 基哉, 佐々木 隆, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1988/03  日本建築学会
  • 芥川 郁雄, 赤木 一郎, 佐々木 隆, 林 基哉, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1988/03  日本建築学会
  • SASAKI TAKASHI, HAYASHI MOTOYA, ARATANI NOBORU
    Journal of Architecture, Planning and Environmental Engineering (Transactions of AIJ)  1988  Architectural Institute of Japan
     
    Diese Abhandlung wird tlber die Beschlagdicht der Luftschicht zwischen den zwei Scheibenfenster bes-chrieben. Der Schllisse sind wie das Folgende; 1) Die AuBenluft flieBt in die Luftschicht gegen der Windrichtung des Gebaudes ein. 2) Das Verhaltnis des Einflusses von AuBenluft in die Luftschicht nimmt zu, wenn der Schwingungsweite groB ist und die Frequenz hoch ist. 3) Filr die Beschlagdicht der Luftschicht soil die auBeren Llicke etwa 1/50 gegen der inneren Lucke als die DurchlaBigkeit brauchen.
  • AKAGI Ichiro
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1987/08  Architectural Institute of Japan
  • HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1987/08  Architectural Institute of Japan
  • AKUTAGAWA Ikuo
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1987/08  Architectural Institute of Japan
  • 赤木 一郎, 荒谷 登, 佐々木 隆, 林 基哉
    日本建築学会北海道支部研究報告集. 計画系  1987/03  日本建築学会
  • 林 基哉, 佐々木 隆, 荒谷 登, 赤木 一郎
    日本建築学会北海道支部研究報告集. 計画系  1987/03  日本建築学会
  • SASAKI TAKASHI, HAYASHI MOTOYA, ARATANI NOBORU
    Journal of Architecture, Planning and Environmental Engineering (Transactions of AIJ)  1987  Architectural Institute of Japan
     
    Diese Abhandlung wird uber dem Luftungszustand der Luftschicht beschrieben. Der Schlusse sind wie das Folgende ; 1) Die Luft in der Lucke bewegt als die Masse. 2) Die Berechnung von Bewegung der Luft in der Lucke soll mit Luftmasse in Erwagung gezogene Methode handeln. 3) Der Verfasser haben die Berechnung-Modell der Luftung von der Luftschicht mit dem Glas-Schwingung gemacht und gerechnet. 4) Das Glas-Schwingung nimmt die Luftungmenge von der Luftschicht in der Niederfrequenz zu.
  • HAYASHI MOTOYA
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1986/07  Architectural Institute of Japan
  • HASHIMOTO Naoki
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1986/07  Architectural Institute of Japan
  • KAWAGUCHI Kenichi
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1986/07  Architectural Institute of Japan
  • AKAGI Ichiro
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1986/07  Architectural Institute of Japan
  • 石田 健一, 荒谷 登, 佐々木 隆, 林 基哉, 赤木 一郎, 高井 健滋
    日本建築学会北陸支部研究報告集  1986/06  日本建築学会
  • 伊藤 尚寛, 金 甲守, 須藤 諭, 堤 純一郎, 林 基哉
    建築雑誌  1986/04  日本建築学会
  • 赤木 一郎, 荒谷 登, 佐々木 隆, 林 基哉, 高井 健滋
    日本建築学会北海道支部研究報告集. 計画系  1986/03  日本建築学会
  • 岡崎 時男, 荒谷 登, 佐々木 隆, 林 基哉, 赤木 一郎, 高井 健滋
    日本建築学会北海道支部研究報告集. 計画系  1986/03  日本建築学会
  • 高井 健滋, 荒谷 登, 佐々木 隆, 林 基哉, 赤木 一郎
    日本建築学会北海道支部研究報告集. 計画系  1986/03  日本建築学会
  • 橋本 直樹, 佐々木 隆, 林 基哉, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1986/03  日本建築学会
  • 林 基哉, 佐々木 隆, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1986/03  日本建築学会
  • HAYASHI Motoya
    Summaries of technical papers of Annual Meeting Architectural Institute of Japan. D, Environmental engineering  1985/09  Architectural Institute of Japan
  • 鈴木 尚毅, 佐々木 隆, 林 基哉, 荒谷 登
    建築雑誌. 建築年報  1985/08  日本建築学会
  • 鈴木 尚毅, 佐々木 隆, 林 基哉, 荒谷 登
    建築雑誌. 建築年報  1985/08  日本建築学会
  • 林 基哉, 佐々木 隆, 荒谷 登
    建築雑誌. 建築年報  1985/08  日本建築学会
  • 鈴木 尚毅, 佐々木 隆, 林 基哉, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1985/03  日本建築学会
  • 鈴木 尚毅, 佐々木 隆, 林 基哉, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1985/03  日本建築学会
  • 林 基哉, 佐々木 隆, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1985/03  日本建築学会
  • 林 基哉, 佐々木 隆, 荒谷 登
    建築雑誌. 建築年報  1984/10  日本建築学会
  • 佐々木 隆, 林 基哉, 荒谷 登
    建築雑誌. 建築年報  1984/10  日本建築学会
  • SASAKI Takashi
    学術講演梗概集. 計画系  1984/09  Architectural Institute of Japan
  • 林 基哉, 佐々木 隆, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1984/03  日本建築学会
  • 佐々木 隆, 林 基哉, 荒谷 登
    日本建築学会北海道支部研究報告集. 計画系  1984/03  日本建築学会
  • 佐々木 隆, 林 基哉, 荒谷 登
    学術講演梗概集. 計画系  1983/09  日本建築学会
  • 小幡 守, 勝水 幸人, 林 基哉
    日本建築学会北海道支部研究報告集. 構造系  1983/03  日本建築学会
     
    有限要素法により鉄筋コンクリート部材を弾塑性解析し,その諸性状を明らかにすることが試みられてきた。著者らもこれまで図-1に示すような,スパン中央に集中荷重を受ける単純支持梁について解析し,実験結果と比較し,種々の検討を行ってきた。前報では,圧縮部分のコンクリートを細かく分割し,また軸鉄筋が曲げモーメントを負担するとして解析し,解析で得られる耐力が実験のそれに近づくことを明らかにした。しかしなお実験に比べて多数のひびわれが生じると計算されることについての改善はみられなかった。このため本報では,これまでの図-2(a)に示す,4個の3角形要素を組み合わせて得られる4辺形を1つの要素と考え,平均応力度を求める方法を改め,図-2(b)に示したように2個の3角形要素を組み合わせて得られる平行4辺形を単位の要素と考えて平均応力度を求めて解析し,その計算結果について検討することにした。なお,前報と本報の分割方式は,基本要素である3角形要素による分割で,本質的に同じであるが,平均応力度計算用の単位要素の違いを考慮して,以下では図-2(a)を単位要素とした場合を直交分割,同図(b)を単位要素とした場合を斜交分割と呼ぶことにする。解析は,前報と同じ図-3(a)および(c)の直交分割と,これに対応する同図(b)および(d)の斜交分割の場合について行った。(a)と(b)および(c)と(d)の各要素の節点位置は同じである。図の(c)と(d)で省略した部分の分割は,それぞれ(a),(b)に同じである。なお鉄筋は軸方向力のみを負担する棒要素とした。実験資料として示されているコンクリートと鉄筋の材料の諸定数,および応力度-ひずみ度関係と鉄筋-コンクリート間の付着-すべり関係は,前報と同じである。

Association Memberships

  • The Japanese Society of Clinical Ecology   Japanese Society of Pubric Health   International Building Performance Simulation Association   SOCIETY OF INDOOR ENVIRONMENT, JAPAN   雪工学会   The Society of Heating,Air-Conditioning and Sanitary Engineers of Japan   ARCHITECTURAL INSTITUTE OF JAPAN   

Research Projects

  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
    Date (from‐to) : 2020/04 -2025/03 
    Author : 林 基哉, 金 勲, 菊田 弘輝, 山田 裕巳, 長谷川 兼一, 稲葉 洋平, 東 賢一, 田島 昌樹
     
    ①常時換気と室内空気質に関する実態調査については、住宅及び生活リテラシーに関するWebアンケート調査（北海道、秋田県、宮城県、埼玉県、東京都、神奈川県の2019年1月から2020年12月までに建てられた新築二階建住宅計約1000件の住宅を対象）を、冬期及び夏期に行った。本調査では、新型コロナウイルス感染症対策の換気習慣の影響を踏まえた内容を加えて実施した。 ②室内空気質と健康リスクに関する調査分析については、上記①の結果をもとに、常時換気設備の運転状況に関する統計分析を行った。常時換気設備の連続運転が定着していない状況(連続運転は60%程度)が改めて確認された。温暖な地域(連続運転の比率は、北海道・秋田県では約80%に対して、東京都では約50%)でこの傾向が強いことが明らかとなった。なお、新型コロナ感染症対策のための窓開け習慣が顕著であることが示された（冬期60%、夏期80%）。 ③常時換気による室内空気質改善に関する分析については、東北7件、北海道5件を含め、計15件の改善事例に関する換気性状（風量、トレーサーガス法による換気量、気流性状等）、室内化学物質（パッシブサンプラー及びアクティブ法）に関する測定、分析を行った。また、換気設備方式、構法によって生じる室内化学物質濃度等の空気環境の特性に関する分析を加えた。室内空気質に考慮して設計施工された住宅においても、TVOC濃度が基準値を大幅に超えていること、厨房換気扇の運転によって顕著に室内のVOC濃度が上昇することから、内部空間由来のVOCによって室内TVOC濃度が高くなっていることが明らかとなった。
  • 日本学術振興会：科学研究費助成事業
    Date (from‐to) : 2021/04 -2024/03 
    Author : 開原 典子, 高田 暁, 林 基哉
     
    本研究は、日常生活の中で起こる室内環境に起因する健康リスクを未然に防ぐための知見整備の一環として、人体の皮膚表面からの不感蒸泄量やその変化の大きさが人体に与える影響を定量的に解明することを目的としている。本研究の実施項目は、①詳細な生理・心理応答の調査・測定、②健康状態把握のための日常健康調査、③不感蒸泄予測の数値人体モデルの開発と適用範囲の検証である。これらの結果により、皮膚乾燥疾患予防や血管内からの水分浸潤由来による脱水・血栓等の健康リスクに与える影響を予測する手法の一助として活用することを目指している。 ①詳細な生理・心理応答の調査・測定では、高齢者と高齢者以外の比較群を対象に生理量と心理量の測定調査を行う。2021年度は、既往研究のデータを本研究の観点から再分析している。 ②健康状態把握のための日常健康調査では、季節ごとに、脈拍、血圧、活動強度等、および生活行動の調査を行う。2021年度は、予備調査として、冬期調査を行っている。 ③不感蒸泄予測の数値人体モデルの開発と適用範囲の検証では、これまでに開発している皮膚内部の水分移動に関する非定常応答の数値人体モデルを基礎として、不感蒸泄量について、人体周囲空気の変化に応じて算出できる数値人体モデルに再開発し、これまでのモデルの適用範囲を拡大する。皮膚の体液供給に供する温度決定の仕組みは、人体熱モデル（Two-node model）を基礎として、体幹部から皮膚までの熱伝導と血流による対流を再構築する。2021年度は、不感蒸泄予測の数値人体モデルの開発に着手している。
  • 建築物環境衛生管理における空気調和設備等の適切な運用管理手法の研究
    厚生労働科学研究費補助金
    Date (from‐to) : 2020/03 -2023/04 
    Author : 林 基哉
  • 日本学術振興会：科学研究費助成事業 基盤研究(B)
    Date (from‐to) : 2020/04 -2023/03 
    Author : 金 勲, 鍵 直樹, 小笠原 岳, 林 基哉, 柳 宇, Lim Eunsu
     
    調査では、空気及びハウスダストの採取と、住環境アンケートを実施している。今までの研究により空気捕集法とフィルター選定、分析法などを確立している。COVID-19の影響により、1年目は現場での空気採取が殆どできなかったが、2年目（2021年度）は住宅で96試料（26軒＋9軒）、オフィス6施設（11試料）を採取・分析した。空気試料とは別に、郵送で依頼できるハウスダスト試料を174試料（61軒）、またオフィスの空調ダクト内ダスト12試料を採取し分析を終えた。 ①26軒（78試料）の調査からは、寝室(夏期1.99 [EU/m3]，秋期1.56 [EU/m3])が居間(夏期0.25 [EU/m3]、秋期0.61 [EU/m3])より高かった。冬期の居間濃度は夏秋期より高かい傾向を示した。 ②9軒（18試料）からは、寝室0.03～0.19 EU/m3、リビングで0.06～0.33 EU/m3であった。ダスト濃度は寝室では4,365～20,651 EU/g、リビングでは2,285～48,265 EU/gであった。ダスト濃度の平均は寝室、居間、脱衣場の順に高く、3カ所平均は夏期(11,732 [EU/g])よりも秋期(17,211 [EU/g])の方が高い。 ③オフィスでは、平均濃度0.13 (S.D. 0.19)EU/m3、最大0.63 EU/m3であり、IO比は平均1.3、最大6.3と室内濃度が高い傾向を示した。 ④オフィスのダクト内ダスト濃度は600 (S.D. 1374) EU/gとハウスダストに比べると高くはないが、最大値は4,249EU/gと住宅並の汚染が観察された。 ⑤今後、換気設備の有無や掃除頻度、建物構造と空気及びダスト濃度との相関分析を行う。
  • 健康増進にむけた住宅環境整備のための研究
    厚生労働科学研究費補助金
    Date (from‐to) : 2020/04 -2023/03 
    Author : 林 基哉
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Challenging Research (Exploratory)
    Date (from‐to) : 2019/06 -2021/03 
    Author : Hayama Hirofumi
     
    Research into seasons and health is a field related to biometeorology and public health. This research used big data that included mortality tables in vital statistics data of the Ministry of Health, Labor and Welfare (1972-2016), AMeDAS meteorological data of the Japan Meteorological Agency, Ministry of Land, Infrastructure, Transport and Tourism (approximately 1300 locations throughout Japan), housing and land statistics and national census data of the Ministry of Internal Affairs and Communications, etc.. The research made progress in the following items, clarified the factors affecting health risks, and obtained indices for the formation of healthy and safe local environments and living environments. 1) Development of a technique for linking essential data from various types of big data, 2) Evaluation of how season and outside air temperature affect the risk of death, 3) Clarification of changes in housing policies over time and risk of death
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research
    Date (from‐to) : 2018/06 -2020/03 
    Author : KIM Hoon
     
    We have proposed the endotoxin (ET) measurement as a fast, highly reproducible and quantitative evaluation method for bacterial contamination. The research aim is to quantitatively evaluate microbial pollution and to explore its utility and practicality in order to contribute to the prevention of infectious diseases and indoor environmental improvement. 1) Indoor ET concentration and gene analysis : Air concentration was measured in 15 facilities (60 points) for the elderly. 2) Comparison of ET concentration and cultural procedure : The comparative experiments were carried out by preparing humidifiers with a cationic eradication agent of bacteria and a tap water only in the clean chamber. 3) ET concentration in house dust : We collected house dust at bedrooms and livings in 92 houses, determined ET in them, and had a questionnaire about the residential / indoor environment and health condition of residents.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research
    Date (from‐to) : 2017/04 -2020/03 
    Author : KAIHARA Noriko
     
    The purpose of this study was to determine the indoor humidity environment that prevents discomfort and diseases caused by dryness, in order to reduce health risks of the elderly in low humidity conditions. From the results of physiological and psychological response experiences in our laboratory, it may be difficult for the elderly to notice that skin and mucous membranes have changed due to dryness and skin moisture content has decreased, and therefore it may be some time before they feel uncomfortable even if skin moisture content decreases. From the results of continuous surveys in daily life, it was found that the elderly themselves checked the temperature, humidity and the state of the skin in the room on the display of the measuring equipment, and contributed to the prevention of dry skin by improving the state.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research
    Date (from‐to) : 2016/04 -2020/03 
    Author : Hayashi Motoya
     
    A survey on houses, indoor environment and residential literacy was conducted, and a method of estimating indoor environment in consideration of residential literacy and a model of houses for physically vulnerable persons were developed in this study. The results show that it is necessary to build houses in accordance with weather conditions and the performance of houses and to improve people's residential literacy. They also show that few people know 24-hour ventilation recommended in Building Code on Sick House, that heat shock in winter is remarkable in old houses, that the infection risk is high because of the difficulty of the stable control of humidity, and that new chemical contamination which has been not yet regulated seems to become serious. This study will lead to a basic guideline for residential literacy.
  • 建築物衛生管理基準の検証に関する研究
    厚生労働科学研究費補助金
    Date (from‐to) : 2017/04 -2020/03 
    Author : 林基哉
  • 室内湿度環境管理による皮膚乾燥疾患の予防と改善に関する基礎的検討
    鹿島学術新興財団：研究助成
    Date (from‐to) : 2017/04 -2018/03 
    Author : 開原 典子、林 基哉、他
  • 半揮発性有機化合物をはじめとした種々の化学物質曝露によるシックハウス症候群への影響に関する研究
    厚生労働科学研究費補助金
    Date (from‐to) : 2016/04 -2018/03
  • パーソナル空調を用いた空間の室内環境測定法に関する調査
    公益財団法人日本建築衛生管理教育センター：建築物環境衛生管理に関する調査研究助成金
    Date (from‐to) : 2016/04 -2017/03 
    Author : 林基哉
  • 建築物環境衛生管理に係る行政監視等に関する研究
    厚生労働科学研究費補助金
    Date (from‐to) : 2014/04 -2016/03
  • 復興住宅の断熱気密等環境性能の実態 東日本大震災復興住宅の断熱気密施工に関する調査
    一般財団法人住宅総合研究財団：助成金
    Date (from‐to) : 2014/04 -2015/03 
    Author : 林基哉
  • 東北のプラスエナジーホームの設計ガイドラインと普及
    公益財団法人 ＬＩＸＩＬ：助成金
    Date (from‐to) : 2014/04 -2015/03 
    Author : 林基哉
  • 老人福祉施設における出張理容・出張美容の実施に関する調査研究
    厚生労働科学研究費補助金
    Date (from‐to) : 2014/04 -2015/03 
    Author : 阪東美智子、大澤元毅、他
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
    Date (from‐to) : 2010/04 -2014/03 
    Author : HAYASHI Motoya, OSAWA Haruki, HASEGAWA Kenichi, HONMA Yoshinori
     
    In order to make a guide for controlling air quality in concealed spaces to keep indoor air quality better, following studies were carried out on the basis of former studies on characteristics of airflow in leakage network of detached houses and their influences upon indoor air quality. Characteristics on thermal conditions and movement of molds were investigated using sliced structure of common houses. Measurement methods of air quality in concealed spaces were investigated. Methods to control air quality in concealed spaces were investigated using simulation programs. These studies showed that not only chemical compound but also molds moves on leakage network of house by pressures of mechanical ventilation system. Basic condition of air quality in concealed spaces (crawl space, wall cavity, etc.) to keep indoor air quality was described.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2006 -2009 
    Author : HAYASHI Motoya, HONNMA Yoshinori, HASEGAWA Kennichi, OSAWA Haruki
     
    It is required to consider the interior materials and the ventilation systems in order to prevent the sick house problem caused by closing habit of windows with the change of life style, saving energy and expanding of new building materials with chemical compounds. In the studies, characteristics of infiltration of pollutants from the concealed spaces : crawl spaces and the beam spaces to the indoor spaces were studied with survey on houses, experiments and simulations. The regulation of chemical compounds induces mould. Therefore, the movements of mould from the concealed space are investigated and the influences of the mould infiltration upon indoor air quality were shown.
  • 日本学術振興会：科学研究費助成事業 萌芽研究
    Date (from‐to) : 2006 -2007 
    Author : 吉野 博, 持田 灯, 内海 康雄, 三田村 輝章, 奥山 博康, 林 基哉
     
    1.換気量測定方法の検討 居住者の呼気を用いた換気量測定法における理論的検討を行った。また、各室のCO_2ガスの時系列変化を用いて、最小二乗法を基本とするシステム同定理論の適用性について検討した。 2.測定方法の考案 室内の在室者の人数を把握できる方法を考案した。また、各種測定機器の性能(測定限界、精度など)について検証し、居住者への負担を軽くするための居室への設置方法について検討した。 3.実住宅における測定の試行 前年度に行った実験家屋における実験結果を基に、実住宅での換気量測定を行った。第一に、在室者の行動をコントロールした条件で、様々な生活行為(在室者の移動、窓・間仕切りの開閉など)が測定精度に及ぼす影響について段階的に実験した。次に、居住者が任意の生活行動をした条件での実験を行い、実住宅における居住状態での換気量測定の精度について検証した。 4.実住宅における実測データの収集 3で試行した結果を基に様々な換気システム、居住者構成、気象条件の下で実測し、データを収集した。また、測定時における問題点などを整理して、測定精度の向上について検討した。
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2005 -2007 
    Author : ENAI Masamichi, HAYAMA Hirofumi, KIKUTA Koki, MORI Taro, HAYASHI Motoya, NISHIZAWA Shigeki
     
    In this report, as the first step, transfer model of heat and moisture for horizontal running water was indicated according to balance of heat and moisture measured in the laboratory. At the second step, CFD (computer fluid dynamics) which was built with transfer model of heat and moisture was compared with actual results as a numerical verification. We need to measure actually distribution of air velocity for adjacent boundary layer on the running water surface for explaining a transfer mechanism of heat and moisture. Such distributions of air velocity on the running water surface were measured by using PIV. It is necessary to estimate by using numerical simulations before planning thermal-aero environment of indoor open spaces. At the third step, improved effects were evaluated by using numerical simulations for planning future thermal-aero environment of indoor open spaces. To design thermal-aero environment for inner open spaces, we need to know the relationship between illuminate environment and solar radiation trough the glass roofs for such spaces. It is possible to estimate thermal load for void spaces of top light type. Classification of atrium spaces was done like side-core model, center core model and linear core model. Best option was indicated from the parameter analysis of PIV. To discuss the numerical analysis by using macro-model that needs for planning of thermal-aero environment to use weak temperature distribution in inner open spaces should be continued. Also CFD analysis used cool running water surface should be continued.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2004 -2005 
    Author : ENAI Masamichi, HAYAMA Hirofumi, MORI Taro, SETOGUCHI Go, HONMA Yoshinori, HAYASHI Motoya
     
    We have common subjects in Cold Regions. One of them is development and substantiality of outdoor life in winter. In this research project, schoolchildren were asked by questionnaire method how much they like or hate winter. For comparing with adults' adaptation to winter, adults were also asked by the same questionnaire method. The field works were done in Japan (Sapporo, Morioka and Sendai), Canada (Waterloo and Gatineau), Finland (Espoo), Russia (Khabarovsk) and China (Harbin) in the winter season in 2005. Playing by schoolchildren and going out by adults such as typical outdoor lives in the winter season were observed in the above cold regions. Particularly, microclimates of schoolchildren under their overcoat were measured while going out and indoor climate in their bedrooms were also measured while sleeping. In the international forum attended by investors and research cooperators such as urban researchers, city planners, landscape architects, play ground designers and administrators in Winter Cities, how to have pleasures through outdoor activities and how to set up public open spaces for supporting active outdoor lives and how to make up networks of community for adapting to winter were discussed. Interesting facts and some proposals were found out from this investigation. Good fruits after oversea field works and international forum will be spread to citizen in winter cities through institutes and administrative announcement.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
    Date (from‐to) : 2003 -2005 
    Author : HAYASHI Motoya, HONMA Yoshinori
     
    The aim of this research is to clear the long term chemical pollution in houses considering the peoples behaviors in houses as operating windows, operating heating systems. At first, a measurement instrument to record the width of openings is made and the performances were investigated using houses. And the instrument was enough useful to use in general houses with the dwellers. The questioner survey was made to know the data of houses and their living style. The changes of opening width of windows were measured in 13 houses. The indoor and outdoor temperatures, these humilities and the concentrations of formaldehyde and carbon dioxide in rooms were also measured in three houses. These measurements showed that the people dos not open windows even in the mild seasons because of thief life style and the condition of the surroundings. These results showed that the risk of the indoor air pollution increases in the middle seasons. A simulation program : Fresh 2006 was improved to show the annual change of the indoor concentrations and the temperatures considering the habits of opening windows. And the leakage networks which were measured using structure models were used and the infiltration rates from the concealed pollution sources for example, the chemical compound to terminate termites to indoor spaces were calculated using the program. The results showed the followings. The infiltration from the concealed spaces was one of the important factors to make the indoor air quality. In the case of exhaust ventilation, this factor became more important. The concentrations of most pollutants become low in summer and become high again in autumn. But in the case formaldehyde, the concentration does not become high in autumn because the ability of the emission form building materials as plywood was reduced by opening windows in summer.

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