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LIU Hongzhi

Faculty of Engineering Environmental Engineering Division of Environmental EngineeringAssistant Professor

Researcher basic information

■ Degree
  • Doctor, Hokkaido University, Sep. 2014
■ URL
researchmap URLホームページURL■ Various IDs
ORCID ID■ Research Keywords and Fields
Research Keyword
  • エネルギー管理システム
  • PCM
  • 蓄熱密度
  • sorption chiller
  • heat pump
  • Thermochemical energy storage
Research Field
  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention), Architectural environment and building equipment
  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering), Thermal engineering
■ Educational Organization

Career

■ Career
Career
  • Aug. 2022 - Present
    Hokkaido University, Graduate School of Engineering
  • Aug. 2017 - Jul. 2022
    University of Shanghai for Science and Technology
  • Nov. 2014 - Sep. 2016
    Hokkaido University, Graduate School of Engineering
Educational Background
  • Oct. 2011 - Sep. 2014, Hokkaido University, Graduate School of Engineering, 博士, Japan
  • Apr. 2011 - Sep. 2011, Hokkaido University, Graduate School of Engineering
  • Sep. 2008 - Jul. 2010, Harbin Institute of Technology, School of Energy Science and Technolgoy, China
Committee Memberships
  • Apr. 2023 - Present
    日本冷凍空調学会デシカント・吸着・吸収・化学系技術委員会, 委員, Society

Research activity information

■ Awards
  • May 2015, The 13th International Conference on Energy Storage, Best Paper Award
    Hongzhi LIU;Kento Kubo;Takao Katsura;Katsunori Nagano;Koukan Kubota;Atsushi Okamoto
  • Jun. 2013, The 2nd International Energy Storage Conference Sustainable Energy Storage in Buildings, Best Paper Award
    Hongzhi Liu;Katsunori Nagano;Dichi Sugiyama
■ Papers
■ Other Activities and Achievements
■ Books and other publications
  • Principles and Applications of Building-Integrated Solar Energy Systems
    YU GuoqingLI HeLIU; HongzhiLI Rui
    China Machine Press, Oct. 2025, 9787111791775, [Joint editor]
■ Lectures, oral presentations, etc.
  • Achieving Both Energy Efficiency and Thermal Comfort with Cold-Climate Air Conditioners (Report 3) Space heating performance of air conditioners considering frosting and defrosting operation
    萬崎朋也; LIU Hongzhi; 若林斉; LEE Sangil; 長野克則; 長野克則; LEE Sangmu
    2025 JSRAE Annual Conference, 12 Sep. 2025
    10 Sep. 2025 - 12 Sep. 2025
  • Development and Performance Evaluation of a K2CO3 Based Composite Thermochemical Material with Low Regeneration Temperature Using Expanded Graphite and LiCl
    LIU Hongzhi; 荒井美幸; 長野克則
    2025 JSRAE Annual Conference, 10 Sep. 2025, Oral presentation
    10 Sep. 2025 - 12 Sep. 2025
  • Achieving Both Energy Efficiency and Thermal Comfort with Cold-Climate Air Conditioners (Report 1) Optimization of Space Heating Operation and Indoor Unit Installation of Room Air Conditioners in Cold Regions
    Bozhou DANG; Hongzhi LIU; Hitoshi WAKABAYASHI; Sangil LEE; Katsunori NAGANO; Sangmu LEE
    The 2025 Annual Meeting of The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (SHASE), 04 Sep. 2025, Japanese, Oral presentation
    03 Sep. 2025 - 05 Sep. 2025
  • Achieving Both Energy Efficiency and Thermal Comfort with Cold-Climate Air Conditioners (Report 2) Influence of Air Conditioner Wind Outlet Height on Physiological and Psychological Responses of Occupants
    Masaki TOKIWA; Ryuki KUDO; Hitoshi WAKABAYASHI; Sang-il LEE; Hongzhi LIU; Katsunori NAGANO; Sangmu LEE
    The 2025 Annual Meeting of The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (SHASE), 04 Sep. 2025, Japanese, Oral presentation
    03 Sep. 2025 - 05 Sep. 2025
  • Thermal Output of Packed Bed and Moving Bed Reactors in Thermochemical Energy Storage System
    Hongzhi LIU; Katsunori NAGANO
    11th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, 16 Aug. 2025, English, Oral presentation
    15 Aug. 2025 - 18 Aug. 2025
  • Enhancing the Reaction Kinetics of K2CO3 for Low-Temperature Thermochemical Energy Storage
    Hongzhi LIU; Miyuki ARAI; Katsunori NAGANO
    12th International Conference on Cold Climate HVAC & Energy, 06 Aug. 2025, English, Invited oral presentation
    06 Aug. 2025 - 08 Aug. 2025, [Invited]
  • Model development and analysis of heat pump cycle using Simulink
    萬崎朋也; 松本大智; XIANG Qin; 長野克則; LIU Hongzhi
    空気調和・衛生工学会北海道支部第59回学術講演会, 13 Mar. 2025
    13 Mar. 2025 - 13 Mar. 2025
  • The evaluation of thermal comfort and performance evaluation of room air conditioner for space heating in cold regions
    五十嵐梨紗; 田邊匠; DANG Bozhou; 長野克則; LIU Hongzhi
    空気調和・衛生工学会北海道支部第59回学術講演会, 13 Mar. 2025
    13 Mar. 2025 - 13 Mar. 2025
  • Experimental and numerical study on high-temperature heat pumps using natural refrigerant
    松本大智; 萬崎朋也; 長野克則; LIU Hongzhi; QIN Xiang
    空気調和・衛生工学会北海道支部第59回学術講演会, 13 Mar. 2025
    13 Mar. 2025 - 13 Mar. 2025
  • Study on smart communities with heat pump (18th Report) The Optimization of the Storage Battery Charge/Discharge for Energy Self-Sufficiency
    田邊匠; 五十嵐梨紗; DANG Bozhou; 長野克則; 葛隆生; LIU Hongzhi
    空気調和・衛生工学会北海道支部第59回学術講演会, 13 Mar. 2025
    13 Mar. 2025 - 13 Mar. 2025
  • Enhancing Hourly Solar Irradiance Prediction with a Hybrid Deep Learning Model Incorporating Clustering
    DANG Bozhou; TANABE Takumi; IGARASHI Risa; NAGANO Katsunori; LIU Hongzhi; KATSURA Takao
    空気調和・衛生工学会北海道支部第59回学術講演会, 13 Mar. 2025
    13 Mar. 2025 - 13 Mar. 2025
  • Study on the development and performance evaluation of thermochemical energy storage materials using potassium carbonate with low regeneration temperature
    荒井美幸; LIU Hongzhi; 長野克則
    空気調和・衛生工学会北海道支部第59回学術講演会, 13 Mar. 2025
    13 Mar. 2025 - 13 Mar. 2025
  • PCMおよびTCM蓄熱システムのシミュレーションに関する研究紹介
    劉 洪芝
    一般財団法人ヒートポンプ・蓄熱センター 主催「ヒートポンプ・蓄エネ 特別セミナー」, 11 Dec. 2024, Japanese
    11 Dec. 2024 - 11 Dec. 2024, [Invited]
  • HEMSにおける蓄電池充放電の最適化に関する研究
    田邊匠; 長野克則; 劉洪芝; 党柏舟
    日本太陽エネルギー学会2024年研究発表会, 03 Nov. 2024, Japanese, Oral presentation
    02 Nov. 2024 - 03 Nov. 2024
  • Enhancing the accuracy of deep learning models for solar irradiation prediction
    党柏舟; 劉洪芝; 田邉匠; 長野克則; 葛隆生
    日本太陽エネルギー学会2024年研究発表会, 02 Nov. 2024, English, Poster presentation
    02 Nov. 2024 - 03 Nov. 2024
  • Modeling and Case Study of a Community Energy Management System for Renewable Thermal Energy Utilization
    ZHENG Xiaoyang; LIU Hongzhi; NAGANO Katsunori
    2024年度日本冷凍空調学会年次大会, 06 Sep. 2024
    04 Sep. 2024 - 06 Sep. 2024
  • A Study on the Performance of a Carnot Battery System with a Transitional CO2 Heat Pump
    萬崎朋也; LIU Hongzhi; 長野克則
    2024年度日本冷凍空調学会年次大会, 06 Sep. 2024
    04 Sep. 2024 - 06 Sep. 2024
  • Study on the optimal operation control system for a radiant floor heating system in a nZEH using Grey Box Model
    LIU Gumo; NAGANO Katsunori; LIU Hongzhi
    2024年度日本冷凍空調学会年次大会, 06 Sep. 2024
    04 Sep. 2024 - 06 Sep. 2024
  • The stable thermal output of a moving bed reactor based on composite binary salt hydrates
    LIU Hongzhi; HE Fang; NAGANO Katsunori
    2024年度日本冷凍空調学会年次大会, 04 Sep. 2024
    04 Sep. 2024 - 06 Sep. 2024
  • Heating Application of the Adsorption Heat Pump based on The Natural mesoporous Material
    Fang HE; Sho YOSHIDA; Hongzhi LIU; Katsunori NAGANO; Junya TOGAWA
    International Sorption Heat Pump Conference (ISHPC) 2024, 03 Sep. 2024, English, Poster presentation
    01 Sep. 2024 - 04 Sep. 2024
  • Annual Performance Prediction and Analysis of an Adsorption Chiller based Cooling System
    Fang HE; Hongzhi LIU; Katsunori NAGANO; Junya TOGAWA
    International Sorption Heat Pump Conference (ISHPC) 2024, 02 Sep. 2024, English, Oral presentation
    01 Sep. 2024 - 04 Sep. 2024
  • Performance comparison of different porous composite binary salt hydrates
    Hongzhi LIU; Fang HE; Katsunori NAGANO
    International Sorption Heat Pump Conference (ISHPC) 2024, 02 Sep. 2024, English, Oral presentation
    01 Sep. 2024 - 04 Sep. 2024, 46277565
  • Evaluation of thermal energy storage performance of composite binary salt hydrates with MgCl2/2CaCl2 in a packed bed reactor
    Hongzhi Liu; Fang He; Katsunori Nagano
    ENERSTOCK 2024 (The 16th IAE EST CP International Conference on Energy Storage), 05 Jun. 2024, English, Oral presentation
    05 Jun. 2024 - 07 Jun. 2024, 46277565
  • Experimental verification of a home energy management system based on the predictions of PV’s output and thermal load
    ZHENG Xiaoyang; LIU Hongzhi; NAGANO Katsunori
    空気調和・衛生工学会北海道支部第58回学術講演会, 14 Mar. 2024
    14 Mar. 2024 - 14 Mar. 2024
  • Performance enhancement of high-temperature heat pump based on natural refrigerant of CO2
    萬崎朋也; 長野克則; LIU Hongzhi
    空気調和・衛生工学会北海道支部第58回学術講演会, 14 Mar. 2024
    14 Mar. 2024 - 14 Mar. 2024
  • Research and Development of Low-Cost Adsorption Heat Pump using Natural Mesoporous Material: 28th Report: Regional Performance Prediction of the Adsorption Heat Pump
    HE Fang; 北岡敏幸; 五十嵐梨紗; LIU Hongzhi; 長野克則; 外川純也
    空気調和・衛生工学会北海道支部第58回学術講演会, 14 Mar. 2024
    14 Mar. 2024 - 14 Mar. 2024
  • Thermal energy storage performance of composite binary salt hydrates with different porous matrices
    LIU Hongzhi; HE Fang; NAGANO Katsunori
    空気調和・衛生工学会北海道支部第58回学術講演会, 14 Mar. 2024
    14 Mar. 2024 - 2024
  • Performance Enhancement of Adsorption Chiller using Natural Meso-porous Material Adsorbent
    Fang He; Katsunori Nagano; Hongzhi Liu; Junya Togawa
    IAQVEC (Indoor Air Quality Ventilation and Energy Conservation) 2023, 22 May 2023, English, Oral presentation
    20 May 2023 - 23 May 2023
  • Study on Performance Enhancement of Natural Meso-porous Material based Adsorption Chiller
    Fang He; Katsunori Nagano; Hongzhi Liu; Junya Togawa
    Grand Renewable Energy 2022 International Conference, 19 Dec. 2022, English, Oral presentation
    13 Dec. 2022 - 20 Dec. 2022
  • Numerical Simulation of an Open Thermochemical Energy Storage Unit based on Composite Salt Hydrates
    Hongzhi LIU; Wantong Wang; Siqi Liu; Zhendong Ye; Beijia Huang
    6th International Workshop on Heat/Mass Transfer Advances for Energy Conservation and Pollution Control, Harbin, China, Aug. 2021, English, Oral presentation
    13 Aug. 2021 - 16 Aug. 2021
  • Influence of refrigerant gas injection on the performance of a Ground Source Heat Pump
    Hongzhi LIU; Katsunori NAGANO
    The 6th International Conference on Cryogenics and Refrigeration, Shanghai, China., Apr. 2018, English, Oral presentation
    12 Apr. 2018 - 14 Apr. 2018
  • 地中熱ヒートポンプシステムの低コスト・高効率化と設計・評価手法の開発に関する研究 その11 給湯用地中熱源ヒートポンプの性能向上に関する実験的検討
    久保憲人; ZHENG Yu; LIU Hongzhi; 葛隆生; 長野克則; 久保田康幹; 岡本淳
    空気調和・衛生工学会北海道支部第50回学術講演会, 22 Mar. 2016
    22 Mar. 2016 - 22 Mar. 2016
  • 天然メソポーラス材料を用いた吸着式ヒートポンプに関する研究 その2:真空下における塩化物担持吸着材の水蒸気吸脱着特性の評価
    森田敦; 外川純也; LIU Hongzhi; 中村真人; 長野克則
    2015年度日本冷凍空調学会年次大会, 23 Oct. 2015
    21 Oct. 2015 - 23 Oct. 2015
  • 天然メソポーラス材料を用いた吸着式ヒートポンプに関する研究 第1報:研究概要とラボスケールの吸着材充填熱交換器を用いた冷熱取り出し評価
    外川純也; 森田敦; LIU Hongzhi; 中村真人; 長野克則; 黒石広明; 原田克彦
    2015年度日本冷凍空調学会年次大会, 23 Oct. 2015
    21 Oct. 2015 - 23 Oct. 2015
  • Study on High-efficiency Ground Source Heat Pump (GSHP)
    LIU Hongzhi; NAGANO Katsunori; KATSURA Takao; ZHENG Yu; KUBO Kento
    2015年度日本冷凍空調学会年次大会, 21 Oct. 2015
    21 Oct. 2015 - 23 Oct. 2015
  • Discussion on Methods of Achieving a High-efficiency Ground Source Heat Pump (GSHP) for Space Heating
    Hongzhi LIU; Kento Kubo; Takao Katsura; Katsunori Nagano; Koukan Kubota; Atsushi Okamoto
    The 13th International Conference on Energy Storage, Beijing, China, May 2015, English, Oral presentation
    19 May 2015 - 21 May 2015
  • Development of a Small Air Cooler Using Lithium Chloride.
    Hongzhi LIU; Kasunori Nagano; Atsushi Morita; Junya Togawa
    The 13th International Conference on Energy Storage, Beijing, China, May 2015, English, Oral presentation
    19 May 2015 - 21 May 2015
  • 天然メソポーラス材料を用いた低コスト吸着式ヒートポンプの研究開発
    森田敦; LIU Hongzhi; 中村真人; 長野克則; 外川純也; 黒石広明
    空気調和・衛生工学会北海道支部第49回学術講演会, 10 Mar. 2015
    10 Mar. 2015 - 10 Mar. 2015
  • 地中熱ヒートポンプシステムの低コスト・高効率化と設計・評価手法の開発に関する研究 その6 多熱源・多機能ヒートポンプのサイクルシミュレーションツールの開発とその応用
    森祐輝; LIU Hongzhi; 久保憲人; 葛隆生; 長野克則; 久保田康幹; 岡本淳
    空気調和・衛生工学会北海道支部第49回学術講演会, 10 Mar. 2015
    10 Mar. 2015 - 10 Mar. 2015
  • 地中熱ヒートポンプシステムの低コスト・高効率化と設計・評価手法の開発に関する研究 その4 業務用空調・給湯用地中熱源ヒートポンプのサイクルシミュレーションの開発
    久保憲人; LIU Hongzhi; 森祐輝; 葛隆生; 長野克則; 久保田康幹; 岡本淳
    空気調和・衛生工学会北海道支部第49回学術講演会, 10 Mar. 2015
    10 Mar. 2015 - 10 Mar. 2015
  • Study on the design and development of evaluation method of low cost & high-efficiency GSHP system: Part 5: Discussion on methods of achieving high-efficiency GSHP for space heating
    LIU Hongzhi; KUBO Kento; MORI Yuki; KATSURA Takao; NAGANO Katsunori; KUBOTA Koukan; OKAMOTO Atsushi
    空気調和・衛生工学会北海道支部第49回学術講演会, 10 Mar. 2015
    10 Mar. 2015 - 10 Mar. 2015
  • A Composite Mesoporous Material for an Open Sorption Thermal Energy Storage System
    Hongzhi LIU; Katsunori Nagano; Daichi Sugiyama; Junya Togawa; Makoto Nakamura
    The 15th International Heat Transfer Conference, Kyoto, Japan, Aug. 2014, English
    10 Aug. 2014 - 15 Aug. 2014
  • Solar thermal energy storage using sorption/desorption of a composite honeycomb filter
    Hongzhi LIU; Katsunori Nagano; Atsushi Morita; Junya Togawa; Makoto Nakamura
    Grand Renewable Energy 2014 International Conference and Exhibition, Tokyo, Japan, Jul. 2014, English, Oral presentation
    27 Jul. 2014 - 01 Aug. 2014
  • 太陽熱給湯冷房システムに関する研究 その1 高性能集熱器による中温集熱性能の実験とシステムシミュレーション
    森田敦; 長野克則; 中村真人; LIU Hongzhi; 井上行雄; 原田克彦
    空気調和・衛生工学会北海道支部第48回学術講演会, 11 Mar. 2014
    11 Mar. 2014 - 11 Mar. 2014
  • Study on Solar Energy Driving Domestic Hot Water Supply and Cooling System Part 2 Development of the Sorption Air Cooling Device
    LIU Hongzhi; MORITA Atsushi; NAKAMURA Makoto; NAGANO Katsunori
    空気調和・衛生工学会北海道支部第48回学術講演会, 11 Mar. 2014
    11 Mar. 2014 - 11 Mar. 2014
  • Experiment and numerical simulation of open chemical thermal energy storage system using developed mesoporous composite filter.
    Hongzhi LIU; Katsunori Nagano; Daichi Sugiyama
    The 2nd International Energy Storage Conference Sustainable Energy Storage in Buildings, Dublin, Ireland, Jun. 2013, English, Oral presentation
    19 Jun. 2013 - 21 Jun. 2013
  • An Open Chemical Thermal Energy Storage (TES) System Used Honeycomb Filters Made from Mesoporous Material Supported by CaCl2
    LIU Hongzhi; NAKAMURA Makoto; SUGIYAMA Daichi; NAGANO Katsunori
    空気調和・衛生工学会北海道支部第47回学術講演会, 13 Mar. 2013
    13 Mar. 2013 - 13 Mar. 2013
  • 太陽熱給湯システムに適用できる化学蓄熱材に関する検討
    杉山大地; 長野克則; 外川純也; 坂本啓典; LIU Hongzhi; 宮本将大
    空気調和・衛生工学会北海道支部第46回学術講演会, 13 Mar. 2012
    13 Mar. 2012 - 13 Mar. 2012
■ Syllabus
  • 環境工学実験Ⅲ, 2024年, 学士課程, 工学部
  • 都市エネルギーシステム工学, 2024年, 学士課程, 工学部
■ Affiliated academic society
  • Jul. 2025 - Present
    Japan Solar Energy Society
  • Apr. 2024 - Present
    空気調和・衛生工学会
  • Nov. 2023 - Present
    日本冷凍空調学会
■ Research Themes