Researcher basic information

• Ph.D., Hokkaido University, Sep. 2021

• https://researchmap.jp/Yu.XIA?lang=en

• https://orcid.org/0000-0002-7872-7205
• https://jglobal.jst.go.jp/detail?JGLOBAL_ID=202101017868267490

• https://orcid.org/0000-0002-7872-7205

• 202101017868267490

• Combustion

• Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention), Safety engineering
• Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering), Thermal engineering

Research activity information

• Feb. 2025, The Combustion Institute, Distinguished Paper Award
  Distinguished Paper Award in the Low Carbon Technology colloquium for The Combustion Institute’s 40 th International Symposium – Emphasizing Energy Transition, Emission characteristics of confined non-premixed ammonia–oxygen–nitrogen turbulent jet flames under oxygen-enriched conditions
  Yu Xia;Yuxuan Shen;Kodai Sakai;Daichi Matsumoto;Sophie Colson;Taku Kudo;Akihiro Hayakawa;Hideaki Kobayashi

• Investigation of turbulence effects on flame propagation in micron-sized iron particle clouds
  Xin Liu; Yu Xia; Nozomu Hashimoto; Qiang Wang; Yusuke Konno; Osamu Fujita
  Combustion and Flame, 292, 115214, 115214, Elsevier BV, Oct. 2026, [Peer-reviewed]
  English, Scientific journal
• Spherical turbulent flame propagation limits of ammonia–hydrogen–oxygen–nitrogen pre-mixtures by intense near-isotropic turbulence in a constant volume vessel
  Yu Xia; Xin Liu; Nozomu Hashimoto; Hirofumi Yamashita; Hiromi Kondo; Wei Gao
  International Journal of Hydrogen Energy, 223, 154130, 154130, Elsevier BV, Apr. 2026, [Peer-reviewed], [Lead author, Corresponding author]
  English, Scientific journal
• Displacement Risk Assessment of Substation Frameworks Under Fire Conditions
  Hui Zhu; Yu Xia; Mingqiang Yan; Jun Ji
  Electrical Materials and Applications, 3, 1, Institution of Engineering and Technology (IET), 22 Jan. 2026, [Peer-reviewed]
  English, Scientific journal, ABSTRACT
  
  The substation framework exhibits a relatively large thermal expansion coefficient and undergoes considerable deformation under elevated temperatures; this deformation may result in localised structural failures, potentially triggering the collapse of the entire system. In this study, ABAQUS software was employed to simulate three distinct fire conditions based on the standard heating curve; the displacement characteristics, deformation curves and deflection changes of the steel pipe herringbone column substation frameworks were analysed and the performance characteristics of the substation framework with and without fire‐resistant coating were compared. The research results indicate that: Under the static force, the location of the maximum displacement occurs at the connection points between the two central web elements and the chord, measuring 0.01033 m. The bare steel truss components subjected to high temperatures experience significant deformation, with displacement surpassing 100 mm, potentially leading to brittle failure of the steel. In contrast, when fire‐resistant coating is applied, structural deformation is considerably mitigated, limiting displacement to within 20 mm. The maximum deflection observed in bare steel structures exceeds the regulatory threshold of 70 mm. However, with the application of fire‐resistant coating, the entire steel structure remains in an upward expansion stage and the resulting deflection remains under 20 mm.
• Gas radiation characteristics of non-premixed ammonia–oxygen–nitrogen turbulent jet flames and comparison with methane jet flames under oxygen-enriched conditions
  Yu Xia; Daichi Matsumoto; Sophie Colson; Taku Kudo; Kai Tanji; Marina Kovaleva; Akihiro Hayakawa; Hideaki Kobayashi
  Fuel, 396, 135274, 135274, Elsevier BV, Sep. 2025, [Peer-reviewed]
  English, Scientific journal
• Experimental investigation of oxygen concentration effects on spherical laminar flame propagation of micron-sized iron particle clouds
  Xin Liu; Nozomu Hashimoto; Yu Xia; Qiang Wang; Yusuke Konno; Osamu Fujita
  Combustion and Flame, 277, 114234, 114234, Elsevier BV, Jul. 2025, [Peer-reviewed]
  Scientific journal
• Experimental study on temperature control of cable tunnel fire under the combined effect of fine water mist and mechanical ventilation
  Hui Zhu; Jun Ji; Jingkai Nie; Yu Xia
  Electrical Materials and Applications, 1, 3-4, Institution of Engineering and Technology (IET), Sep. 2024, [Peer-reviewed]
  English, Scientific journal, Abstract
  
  Electricity is an important energy supply for industry, and long‐distance transmission in China mainly relies on cable tunnels, while cable tunnel fires occur frequently. A 1:1 scale tunnel model with a length of 20 m, a width of 2.5 m, and a height of 2.5 m was used to conduct experimental research on the temperature field of the ceiling of a high‐voltage fine water mist suppression cable tunnel. The article conducted experimental research on parameters, such as nozzle pressure, nozzle position, and longitudinal ventilation speed in high‐pressure water mist systems using n‐hexane as the ignition source. The results indicate that the high‐pressure water mist system can effectively reduce the ceiling temperature during cable tunnel fires. When the mechanical smoke evacuation system is activated, it leads to a reduction in the overall temperature within the tunnel. When the mechanical smoke extraction system is integrated with the high‐pressure water mist system, therefore, it is feasible to integrate the high‐pressure water mist system with the mechanical smoke exhaust system in engineering applications.
• Emission characteristics of confined non-premixed ammonia–oxygen–nitrogen turbulent jet flames under oxygen-enriched conditions
  Yu Xia; Yuxuan Shen; Kodai Sakai; Daichi Matsumoto; Sophie Colson; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi
  Proceedings of the Combustion Institute, 40, 1-4, 105704, 105704, Elsevier BV, Aug. 2024, [Peer-reviewed], [Lead author]
  English, Scientific journal
• Turbulent flame propagation limits in polymethylmethacrylate particle cloud combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  Proceedings of the Combustion Institute, 40, 1-4, Jan. 2024
  Scientific journal, 41572102;42329374
• Turbulent flame propagation mechanism of polymethylmethacrylate particle cloud–ammonia co-combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  Combustion and Flame, 241, 112077, 112077, Elsevier BV, Jul. 2023, [Peer-reviewed], [Lead author], [International Magazine]
  English, Scientific journal, 41572102;42329374
• Turbulent flame propagation limits of polymethylmethacrylate particle cloud-ammonia-air co-combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  Proceedings of the Combustion Institute, 39, 2022, [Peer-reviewed], [International Magazine]
  Scientific journal
• Turbulent flame propagation of polymethylmethacrylate particle clouds in an O2/N2 atmosphere
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  Combustion and Flame, 234, Dec. 2021, [Peer-reviewed], [Lead author]
  English, Scientific journal, 41572102
• Effect of ammonia/oxygen/nitrogen equivalence ratio on spherical turbulent flame propagation of pulverized coal/ammonia co-combustion
  Yu Xia; Khalid Hadi; Genya Hashimoto; Nozomu Hashimoto; Osamu Fujita
  Proceedings of the Combustion Institute, 38, 3, 4043, 4052, Elsevier {BV}, 2021, [Peer-reviewed], [Lead author], ［Internationally co-authored］, [International Magazine]
  English, Scientific journal
• Effect of fuel ratio of coal on the turbulent flame speed of ammonia/coal particle cloud co-combustion at atmospheric pressure
  Khalid Hadi; Ryo Ichimura; Genya Hashimoto; Yu Xia; Nozomu Hashimoto; Osamu Fujita
  Proceedings of the Combustion Institute, 38, 3, 4131, 4139, Elsevier {BV}, 2021, [Peer-reviewed], ［Internationally co-authored］, [International Magazine]
  English, Scientific journal
• Turbulent flame propagation limits of ammonia/methane/air premixed mixture in a constant volume vessel
  Genya Hashimoto; Khalid Hadi; Yu Xia; Aainaa Hamid; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  Proceedings of the Combustion Institute, 38, 4, 5171, 5180, Elsevier {BV}, 2021, [Peer-reviewed], ［Internationally co-authored］, [International Magazine]
  English, Scientific journal
• Turbulent burning velocity of ammonia/oxygen/nitrogen premixed flame in O2-enriched air condition
  Yu Xia; Genya Hashimoto; Khalid Hadi; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  Fuel, 268, May 2020, [Peer-reviewed], [Lead author], ［Internationally co-authored］, [International Magazine]
  English, Scientific journal
• Experimental Analysis of Critical Acceleration Condition for Two-Sided Upward Flame Spread Over Inclined Thin Fuel Surfaces
  Yunji Gao; Guoqing Zhu; Hui Zhu; Weiguang An; Mengwei Yu; Jinlei Huang; Yu Xia
  Fire Technology, 55, May 2019, [Peer-reviewed], [Last author]
  English, Scientific journal
• Experimental study of the non-monotonous moisture effect on upward flame spread over cotton fabric
  Yunji Gao; Guoqing Zhu; Hui Zhu; Yu Xia
  Textile Research Journal, 88, 20, 2379, 2394, SAGE Publications, Oct. 2018, [Peer-reviewed], [International Magazine]
  English, Scientific journal, The present paper studies the moisture effect on upward flame spread over cotton fabric by performing experiments using 0.245 mm thick, 180 cm tall and 10 cm wide sample sheets with moisture content ranging from 0% to 18%. As the moisture content increases, the flame height, pyrolysis height, burnout height, pyrolysis length and spread rate show the same trend, first increasing and then decreasing. The maximum value is observed in the case of the 2% moisture content samples. Furthermore, at an infinite length of fabric fuel, the upward flame propagation would reach an asymptotic steady state with constant pyrolysis length and spread rate. Finally, a higher moisture content corresponds to a lower flame temperature. For upward flame spread, the moisture content has the negative effects of increasing the thermal inertia parameters and reducing the flame temperature and heat feedback; simultaneously, the positive effect is that the moisture can enlarge the flame size and the effective preheating length. The combined effects of positive and negative effects result in the non-monotonous trend in the pyrolysis spread rate.
• Influence of mechanical smoke exhaust on smoke spread in underground tunnel
  Hai jun Tao; Guoqing Zhu; Yu Xia; Yongchang Zhao
  Case Studies in Thermal Engineering, 12, 47, 54, Elsevier BV, Sep. 2018, [Peer-reviewed]
  Scientific journal
• Experimental Study on Upward Flame Spread Behaviors over Thin Fabric Fuels
  Yun-ji Gao; Guo-qing Zhu; Meng-wei Yu; Zhi-chao Yu; Yu Xia
  Procedia Engineering, 211, 183, 191, Elsevier BV, 2018
  Scientific journal
• Use of Cone Calorimeter for Estimating Fire Behavior of PVC Membranes
  Yu Xia; Guo-qing Zhu; Yun-ji Gao; Feng Guo
  Procedia Engineering, 211, 810, 817, Elsevier BV, 2018, [Peer-reviewed], [Lead author]
  English, Scientific journal
• Effect of DPK flame retardant on combustion characteristics and fire safety of PVC membrane
  Yu Xia; Guo qing Zhu; Feng Guo; Yun ji Gao; Hai jun Tao
  Case Studies in Thermal Engineering, 10, 656, 663, Elsevier {BV}, Sep. 2017, [Peer-reviewed], [Lead author]
  English, Scientific journal

• Experimental Study of Turbulent Flame Propagation Limits of NH3/CH4/air Premixed Gas in A Constant Volume Combustion Chamber
  Hashimoto Genya; Hadi Khalid; Xia Yu; Hamid Aainaa; Hashimoto Nozomu; Hayakawa Akihiro; Kobayashi Hideaki; Fujita Osamu, The Proceedings of the Thermal Engineering Conference, 2020, 80, 80, 2020
  

  In this study, the flame propagation experiments of ammonia/methane/air were conducted using a fan-stirred constant volume vessel in order to clarify the effect of turbulence on the propagation limits of the ammonia/methane/air. Results show that the ammonia/methane/air mixture with a 0.9 equivalence ratio can propagate at the highest turbulence intensity and flames can propagate in larger turbulence Karlovitz number at smaller Markstein number. These tendencies are considered to be due to the diffusional-thermal instability of the flame surface.

  , The Japan Society of Mechanical Engineers, Japanese
• Experimental study of the turbulent flame propagation behavior of pulverized coal/ammonia co-combustion in an O2/N2 atmosphere within a fan-stirred closed vessel
  Xia Yu; Hadi Khalid; Hashimoto Genya; Hashimoto Nozomu; Fujita Osamu, The Proceedings of the Thermal Engineering Conference, 2020, 87, 87, 2020
  

  This work aims to clarify the spherical turbulent flame propagation behavior of the pulverized coal particle clouds/ammonia co-combustion under different ammonia/oxygen/nitrogen equivalence ratios. Experiments were conducted under various turbulence intensities (u ^'=0, 0.32, 0.65, 0.97, 1.29 m/s) and in ammonia-lean conditions (ϕ = 0.4, 0.6, 0.8) with a common bituminous coal by using a constant volume spherical chamber. The result indicated propagation velocities of the luminous flame front and the reaction front in co-combustion increased with increasing turbulence intensity. The turbulent flame propagation velocity of the pulverized coal/ammonia co-combustion was higher than that of the pure pulverized coal combustion and that of the pure ammonia combustion under all conditions.

  , The Japan Society of Mechanical Engineers, Japanese
• Flame propagation limit of premixed gas of ammonia and methane in turbulent fields in a constant volume vessel
  Genya Hashimoto; Ryo Ichimura; Khalid Hadi; Yu Xia; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita, The Proceedings of the National Symposium on Power and Energy Systems, 2019.24, D124, D124, 2019, ［Internationally co-authored］
  Japan Society of Mechanical Engineers, Japanese
• 2-7 Study on the flame propagation velocity of the ammonia/pulverized coal mixing combustion in a turbulent field of a constant volume vessel
  HASHIMOTO Nozomu; XIA Yu; HADI Khalid; HASHIMOTO Genya; FUJITA Osamu, Proceedings of Conference on Coal Science, 56, 60, 61, 2019
  

  Ammonia is considered as one of promising energy careers in the future. One of applications using ammonia as fuel is introducing ammonia in coal fired boilers. To realize the utilization of ammonia in coal fired boilers as a fuel, it is necessary to clarify the mixing combustion characteristics of ammonia and coal. In this study, the turbulent spherical flame propagation characteristics of ammonia / coal particle cloud mixture were investigated. Under the various turbulence intensity and the types of coal, the spherical flame propagation experiments were conducted. Experimental results revealed that in some conditions, the flame propagation velocity of the mixture of ammonia / coal particle cloud / oxidizer is higher than that of the mixture of ammonia / oxidizer or that of the mixture of coal particle cloud / oxidizer. This means that there is an interaction mechanism between the ammonia / oxidizer flame and the coal particle cloud / oxidizer flame. The findings from this study can be utilized for establishment of the mixing combustion model of ammonia and coal particle cloud.

  , The Japan Institute of Energy, Japanese

• Turbulent flame propagation limit of micron-sized iron particle clouds
  Xin Liu; Yu Xia; Nozomu Hashimoto; Osamu Fujita
  41st International Symposium on Combustion, 29 Jul. 2026, English, Oral presentation
  26 Jul. 2026 - 31 Jul. 2026
• Spherical turbulent flame propagation limits in ammonia, hydrogen, methane, Dimethyl Ether premixed flames with oxidizer of oxygen–nitrogen
  Yu Xia; Xin Liu; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi
  41st International Symposium on Combustion, 28 Jul. 2026, English, Oral presentation
  26 Jul. 2026 - 31 Jul. 2026, 54788036
• Formation of dual heat release zones in ammonia oxygen-enriched turbulent jet diffusion flames
  Marina Kovaleva; Yu Xia; Daichi Matsumoto; Kai Tanji; K. D. Kunkuma; A. Somarathne; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi
  41st International Symposium on Combustion, 27 Jul. 2026, English, Poster presentation
  26 Jul. 2026 - 31 Jul. 2026
• Understanding radiation characteristics of ammonia–hydrogen flames towards carbon neutral industrial furnaces
  Yu Xia; AkihiroHayakawa; Hideaki Kobayashi
  4th Symposium on Ammonia Energy, 28 Sep. 2025, English, Poster presentation
  51056048;42329374;41572102
• Experimental investigation of oxygen concentration effect on spherical turbulent flame propagation limits of ammonia–oxygen–nitrogen premixed flames
  Yu Xia; Xin Liu; Nozomu Hashimoto; Osamu Fujita
  30th International Colloquium on the Dynamics of Explosions and Reactive Systems, 31 Jul. 2025, English, Oral presentation
  27 Jul. 2025 - 01 Aug. 2025, 42329374;51056048;41572102
• Spherical turbulent flame propagation limits of ammonia–hydrogen–oxygen–nitrogen pre-mixtures by intense near-isotropic turbulence in a constant volume vessel
  Yu Xia; Xin Liu; Nozomu Hashimoto; Osamu Fujita
  15th Asia-Pacific Conference on Combustion, 21 May 2025, English, Oral presentation
  18 May 2025 - 22 May 2025, 42329374
• Calculation of radiation in turbulent oxygen-enriched ammonia combustion
  Marina Kovaleva; Yu Xia; Akihiro Hayakawa; Hideaki Kobayashi
  12th European Combustion Meeting, 08 Apr. 2025, English, Oral presentation
  07 Apr. 2025 - 10 Apr. 2025
• Radiation spectrum characteristics of ammonia nonpremixed jet diffusion flames under oxygen enriched conditions
  Daichi Matsumoto; Yu Xia; Kai Tanji; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi
  The 62nd Symposium (Japanese) on Combustion, Nov. 2024, Japanese, Oral presentation
• Turbulent flame propagation and extinction behaviors and mechanisms in solid particle cloud combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  8th International Symposium on Energetic Materials and their Applications (ISEM2024), Nov. 2024, English, Oral presentation
• Turbulent flame propagation and extinction in solid particle cloud combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  The 62nd Symposium (Japanese) on Combustion, Nov. 2024, English, Oral presentation
• Experimental study on the effect of oxygen concentration on the spherical flame propagation of micron-sized iron particle cloud in laminar environment
  Xin Liu; Nozomu Hashimoto; Yu Xia; Yusuke Konno; Osamu Fujita
  The 62nd Symposium (Japanese) on Combustion, Nov. 2024, English, Oral presentation
• Emission characteristics of confined non-premixed ammonia–oxygen–nitrogen turbulent jet flames under oxygen-enriched conditions
  Yu Xia, Yuxuan Shen, Kodai Sakai, Daichi Matsumoto, Sophie Colson, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi
  40th International Symposium - Emphasizing Energy Transition, Jul. 2024, English, Oral presentation
  21 Jul. 2024 - 26 Jul. 2024, 42329374
• Study of laminar flame propagation of ammonia/air premixture under microgravity conditions using numerical simulation
  Masaya Muto; Xia Yu; Nozomu Hashimoto; Hisashi Nakamura; Ryoichi Kurose
  40th International Symposium - Emphasizing Energy Transition, Jul. 2024, English, Poster presentation
• Turbulent flame propagation limits in polymethylmethacrylate particle cloud combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  40th International Symposium - Emphasizing Energy Transition, Jul. 2024, English, Oral presentation
  42329374;41572102
• Radiative characteristics of non-premixed ammonia/oxygen/nitrogen turbulent jet flames under oxygen-enriched conditions
  Yu Xia; Daichi Matsumoto; Yuxuan Shen; Sophie Colson; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi
  Third Asian Conference on Thermal Sciences, 3rd ACTS, 25 Jun. 2024, English, Oral presentation
• Numerical simulation of laminar flame propagation of ammonia/air premixture under microgravity conditions
  Masaya Muto; Xia Yu; Nozomu Hashimoto; Hisashi Nakamura; Ryoichi Kurose
  19th International Conference on Numerical Combustion, May 2024, English, Oral presentation
• Experimental study on product gas characteristics of confined ammonia jet diffusion flames under oxygen enrichment condition
  Yuxuan Shen; Yu Xia; Kodai Sakai; Daichi Matsumoto; Sophie Colson; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi
  The 61st Symposium (Japanese) on Combustion, 15 Nov. 2023, English, Oral presentation
• Experimental Study on Emission Characteristics of Ammonia Jet Diffusion Flames under Oxygen Enrichment Condition
  Yu Xia; Yuxuan Shen; Sophie Colson; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi
  20th International Conference on Flow Dynamics, 08 Nov. 2023, English, Oral presentation
• Experimental research on emission characteristics of confined non-premixed ammonia–oxygen–nitrogen jet diffusion flames under oxygen enrichment condition
  Yu Xia; Yuxuan Shen; Kodai Sakai; Sophie Colson; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi
  2nd Symposium on Ammonia Energy, 12 Jul. 2023, English, Oral presentation
  42329374
• Experimental research on turbulent flame propagation of solid particle cloud–gaseous fuel two-phase hybrid mixture co-combustion
  Yu Xia; Seung Min Song; Nozomu Hashimoto; Osamu Fujita
  14th Asia-Pacific Conference on Combustion, 17 May 2023, English, Oral presentation
  42329374;41572102
• Turbulent flame propagation limits of polymethylmethacrylate particle cloud–ammonia–air co-combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  39th International Symposium on Combustion, 28 Jul. 2022, English, Oral presentation
  24 Jul. 2022 - 29 Jul. 2022, 41572102, [International presentation]
• Turbulent flame extinction behavior in solid particle cloud/ammonia/air co-combustion within a fan-stirred closed vessel
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  The 26th National Symposium on Power and Energy Systems, 14 Jul. 2022, English, Oral presentation
  13 Jul. 2022 - 14 Jul. 2022, 41572102, [Domestic Conference]
• Turbulent flame propagation behavior and mechanism of solid particle cloud/ammonia co-combustion
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  The 13th Asia-Pacific Conference on Combustion, Dec. 2021, English, Oral presentation
  [International presentation]
• Experimental study on small-large particle interaction effect on flame propagation behavior in turbulent clouds of polymethylmethacrylate particles in a constant volume chamber
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  8th Asian Particle Technology Symposium, 11 Oct. 2021, English, Oral presentation
• Experimental study of particle size effect on turbulent flame propagation of solid particle cloud/ammonia co-combustion using a fan-stirred constant-volume chamber
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  The 59th Symposium (Japanese) on Combustion, Oct. 2021, English, Oral presentation
  [Domestic Conference]
• Experimental study of the turbulent flame propagation behavior of solid particle fuel/ammonia/oxygen/nitrogen co-combustion within a fan-stirred vessel
  Yu Xia; Nozomu Hashimoto; Osamu Fujita
  The 25th National Symposium on Power and Energy System, Jul. 2021, English, Oral presentation
• Effect of fuel ratio of coal on the turbulent flame speed of ammonia/coal particle cloud co-combustion at atmospheric pressure
  Khalid Hadi; Ryo Ichimura; Genya Hashimoto; Yu Xia; Nozomu Hashimoto; Osamu Fujita
  38th international symposium on combustion, Jan. 2021, English, Oral presentation
  [International presentation], ［Internationally co-authored］
• Turbulent flame propagation limits of ammonia/methane/air premixed mixture in a constant volume vessel
  Genya Hashimoto; Khalid Hadi; Yu Xia; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  The 38th International Symposium on Combustion, Jan. 2021, English, Oral presentation
• Effect of ammonia/oxygen/nitrogen equivalence ratio on spherical turbulent flame propagation of pulverized coal/ammonia co-combustion
  Yu Xia; Khalid Hadi; Genya Hashimoto; Nozomu Hashimoto; Osamu Fujita
  The 38th International Symposium on Combustion, Jan. 2021, English, Oral presentation
• Effect of the diffusive-thermal instability on the turbulent flame propagation limits of NH3/CH4/air premixed gas
  Genya Hashimoto; Khalid Hadi; Yu Xia; Aainaa Hamid; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  The 58th Symposium (Japanese) on Combustion, Dec. 2020, English, Oral presentation
  [Domestic Conference], ［Internationally co-authored］
• Spherical turbulent flame propagation behavior of the polymethylmethacrylate particle clouds combustion in an O2/N2 atmosphere within a fan-stirred closed vessel
  Yu Xia, Genya Hashimoto, Nozomu Hashimoto, Osamu Fujita
  The 58th Symposium (Japanese) on Combustion, Dec. 2020, English, Oral presentation
• Experimental study of the turbulent flame propagation behavior of pulverized coal/ammonia co-combustion in an O2/N2 atmosphere within a fan-stirred closed vessel
  Yu Xia; Khalid Hadi; Genya Hashimoto; Nozomu Hashimoto; Osamu Fujita
  2020 Japan thermal engineering conference, Oct. 2020, English, Oral presentation
  [Domestic Conference], ［Internationally co-authored］
• Experimental study of turbulent flame propagation limits of NH3/CH4/air premixed gas in a constant volume combustion chamber
  Genya Hashimoto; Khalid Hadi; Yu Xia; Aainaa Hamid; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  2020 Japan thermal engineering conference, Oct. 2020, English, Oral presentation
  [Domestic Conference], ［Internationally co-authored］
• Turbulent burning velocity of ammonia/oxygen/nitrogen premixed flame in oxygen-enriched environment
  Yu Xia; Genya Hashimoto; Khalid Hadi; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  16th International Conference on Flow Dynamics (ICFD2019), Nov. 2019, English
  [International presentation], ［Internationally co-authored］
• Experimental study of flame propagation limits of ammonia/methane/air mixture in turbulent fields
  Genya Hashimoto; Khalid Hadi; Yu Xia; Aainaa Hamid; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  16th International Conference on Flow Dynamics (ICFD2019), Nov. 2019, English, Oral presentation
  [International presentation], ［Internationally co-authored］
• Spherical turbulent flame propagation behaviors of pulverized coal/ammonia co-combustion in an O2/N2 atmosphere
  Yu Xia; Nozomu Hashimoto; Genya Hashimoto; Khalid Hadi; Aainaa Hamid; Osamu Fujita
  The 57th Symposium (Japanese) on Combustion, Nov. 2019, English, Oral presentation
  [Domestic Conference], ［Internationally co-authored］
• Flame propagation limit of premixed gas of ammonia and methane in turbulent fields in a constant volume vessel
  Genya Hashimoto; Khalid Hadi; Yu Xia; Aainaa Hamid; Nozomu Hashimoto; Akihiro Hayakawa; Hideaki Kobayashi; Osamu Fujita
  The 24th National symposium on power and energy system, Jun. 2019, Japanese, Oral presentation
  ［Internationally co-authored］

• Sep. 2020 - Present
  The Japan Society of Mechanical Engineers
• 2019 - Present
  The Combustion Institute
• 2019 - Present
  Combustion Society of Japan

• Clarification and optimization of radiation heat transfer from ammonia flames for carbon-neutral industrial furnaces
  Grants-in-Aid for Scientific Research
  01 Apr. 2026 - 31 Mar. 2030
  Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B), Hokkaido University, 26K00880
• カーボンニュートラル工業炉の実現に向けた高温環境下におけるアンモニア乱流燃焼特性の解明
  Aug. 2025 - Mar. 2026
  北海道大学グリーントランスフォーメーション先導研究センター, Principal investigator
• Turbulent flame extinction behaviours and mechanisms of ammonia flames under high-temperature and high-pressure environments
  科学研究費助成事業 若手研究
  Apr. 2023 - Mar. 2026
  Xia Yu
  日本学術振興会, 若手研究, 東北大学, 23K13259
• Turbulent flame propagation and extinction behaviors and mechanisms of solid particle fuel/ammonia co-combustion
  Grants-in-Aid for Scientific Research
  Aug. 2022 - Mar. 2024
  Japan Society for the Promotion of Science, Grant-in-Aid for Research Activity Start-up, Tohoku University, 22K20395