Hayakawa Akihiro

ハヤカワアキヒロ | Hayakawa Akihiro

Affiliation and department：
Homepage URL (1)： http://www.ifs.tohoku.ac.jp/kobayashi/

Research field (1)： Thermal engineering

Research keywords (2)： Combustion , Reactive Gas Dynamics

Research theme for competitive and other funds (12)：

2021 - 2024 Laminar flame structures and turbulent flame characteristics of ammonia flames at high temperature and high pressure conditions
2020 - 2023 高温高圧下における液体アンモニアおよびアンモニア水溶液の噴霧燃焼実現と現象解明
2020 - 2022 Laser-induced fluorescence measurement of gas-liquid multiphase diffusion flames in high-pressure rocket combustion
2018 - 2022 Development of an innovative laser velocimetry without tracer particles and its application for various flow fields
2017 - 2020 Advancement and application of LITGS for quantitative temperature measurement of combustion in an extreme condition

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Papers (123)：

Hirofumi Yamashita, Akihiro Hayakawa, Kohei Oku, Sophie Colson, Gauthier Reibel, Yi-rong Chen, K. D. Kunkuma A. Somarathne, Ekenechukwu C. Okafor, Taku Tsujimura, Shintaro Ito, et al. Visualization of liquid ammonia spray using 2p-SLIPI and comparison of liquid ammonia spray and gaseous ammonia combustion in a swirl combustor at atmospheric pressure. Fuel. 2024. 371. 131833
Osamu Kurata, Okafor Ekenechukwu Chijioke, Hirofumi Yamashita, Takahiro Inoue, Taku Tsujimura, Norihiko Iki, Akihiro Hayakawa, Hideaki Kobayashi. Enhancement of liquid ammonia combustion by a twin fluid atomizer. International Journal of Gas Turbine, Propulsion and Power Systems. 2024
Hirofumi Yamashita, Akihiro Hayakawa, Ekenechukwu C. Okafor, Sophie Colson, K. D. Kunkuma A. Somarathne, Taku Tsujimura, Shintaro Ito, Masahiro Uchida, Taku Kudo, Hideaki Kobayashi. Optimum primary equivalence ratio for rich-lean two-stage combustion of non-premixed ammonia/methane/air and ammonia/hydrogen/air flames in a swirling flow. Fuel. 2024. 368. 131598-131598
Yu Xia, Yuxuan Shen, Kodai Sakai, Daichi Matsumoto, Sophie Colson, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi. Emission characteristics of confined non-premixed ammonia-oxygen-nitrogen turbulent jet flames under oxygen-enriched conditions. Proceedings of the Combustion Institute. 2024. 40. 1-4. 105704-105704
Kapuruge Don Kunkuma Amila Somarathne, Hirofumi Yamashita, Sophie Colson, Kohei Oku, Keito Honda, Ekenechukwu Chijioke Okafor, Akihiro Hayakawa, Taku Kudo, Hideaki Kobayashi. Towards the development of liquid ammonia/air spray combustion in a gas turbine-like combustor at moderately high pressure. Applications in Energy and Combustion Science. 2023. 16. 100215-100215

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MISC (36)：

SOMARATHNE Kapuruge Don Kunkuma Amila, YAMASHITA Hirofumi, COLSON Sophie, HAYAKAWA Akihiro, KUDO Taku, KOBAYASHI Hideaki. Emission Characteristics of Liquid Ammonia and Gaseous Ammonia Flames Co-fired with Gaseous Hydrogen in a Gas Turbine-like Combustor at Moderately High Pressure. Proceedings. International Conference on Flow Dynamics (CD-ROM). 2022. 19th
COLSON Sophie, SOMARATHNE Kapuruge Don Kunkuma Amila, SUGAWARA Daiki, HAYAKAWA Akihiro, KOBAYASHI Hideaki. Study on the role of excess enthalpy in the stabilization of ammonia/air premixed flames in a swirling flow. 燃焼シンポジウム講演論文集(CD-ROM). 2021. 59th
SOMARATHNE Kapuruge Don Kunkuma Amila, COLSON Sophie, HAYAKAWA Akihiro, KOBAYASHI Hideaki. Numerical Study on Effects of Ammonia Fuel Fraction in Liquid Ammonia/Hydrogen/air Co-combustion at High Pressure. 燃焼シンポジウム講演論文集(CD-ROM). 2021. 59th
SOMARATHNE Kapuruge Don Kunkuma Amila, YAMASHITA Hirofumi, YAMASHITA Hirofumi, COLSON Sophie, HAYAKAWA Akihiro, KOBAYASHI Hideaki. Liquid Ammonia Spray Characteristics Using a Hollow Cone Nozzle at Various Ambient Pressures. Proceedings. International Conference on Flow Dynamics (CD-ROM). 2021. 18th
SOMARATHNE Kapuruge Don Kunkuma Amila, HAYAKAWA Akihiro, KOBAYASHI Hideaki. Numerical Investigation on Possibilities of Liquid Ammonia Spray Combustion in the Gas Turbine-like Combustors. 燃焼シンポジウム講演論文集(CD-ROM). 2020. 58th

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Patents (2)：

低燃焼性燃料燃焼装置
スクラムジェットエンジン用燃焼装置及びスクラムジェットエンジン

Lectures and oral presentations (101)：

アンモニア燃焼用低NOxRich-leanガスタービン燃焼器の研究開発
(第56回燃焼シンポジウム 2018)
Efficient Low NOx Combustion Strategies for Ammonia-methane Fuel a Micro Gas Turbine Combustor
(第56回燃焼シンポジウム 2018)
Effect of Wall Quenching of a Gas Turbine- Like Combustor on Emission Characteristics of Ammonia/air Non-Premixed Swirling Flames
(第56回燃焼シンポジウム 2018)
A Study of Premixed Flames interacted with Turbulent Shear Flows
(第56回燃焼シンポジウム 2018)
Effects of CO2 Concentration on Flame Propagation Characteristics of CH4/CO2/air Laminar Premixed Flames under Various Equivalence Ratios and Pressures
(Proceedings of the Fifteenth International Conference on Flow Dynamics (ICFD2018) 2018)

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Professional career (1)：

Dr. Eng. (Kyushu University)

Awards (10)：

2020/12 - 日本燃焼学会日本燃焼学会論文賞 Development of a wide range-operable, rich-lean low-NOx combustor for NH3 fuel gas-turbine power generation
2019/12 - 日本燃焼学会論文賞 Science and Technology of Ammonia Combustion
2019/11 - Best Presentation Award for Young Researcher Product Gas Characteristics of Strain and Swirl Stabilized Ammonia/air Flames
2018/10 - JSME Thermal Engineering Division Certificate of Merit for Thermal Engineering Best Paper Effects of pressure on combustion characteristics of ammonia/air premixed turbulent flames in swirling flows
2018/04 - 日本機械学会日本機械学会奨励賞(研究)

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Association Membership(s) (4)：

日本航空宇宙学会 , 自動車技術会 , 日本機械学会 , 日本燃焼学会

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