Experimental Clarification on Detonation Phenomena of Liquid Ethanol Rotating Detonation Combustor

Kentaro Yoneyama, Kazuki Ishihara, Shiro Ito, Hiroaki Watanabe, Noboru Itouyama, Akira Kawasaki, Ken Matsuoka, Jiro Kasahara, Akiko Matsuo, Ikkoh Funaki

研究成果: Conference contribution

抄録

Rotating detonation combustion was successfully tested for liquid ethanol and gaseous oxygen heterogeneous mixture in a cylindrical combustor for the first time. The rotating detonation combustor (RDC) we operated has a diameter of 20 mm and variable lengths of 60, 210 mm. Pure ethanol and industrial ethanol were selected as liquid fuels. Under the conditions of ethanol and oxygen mass flow rate of 26-40 g/s, equivalence ratio of 0.4-1.7, and backpressure of 10-17 kPa, we confirmed detonation combustion and deflagration combustion. In detonation combustion, as the ethanol manifold supply temperature increases, the detonation propagation speeds, and luminance of combustion were enhanced. It is possible to say enhanced evaporation behavior resulted in stable detonation and showed high peaks in luminance value. Utilizing the control surface method to evaluate experimental thrust, estimated thrust showed good agreement with experimental thrust. For liquid-fueled cylindrical RDCs, the control surface methods can also be used to evaluate thrust.

本文言語English
ホスト出版物のタイトルAIAA SciTech Forum 2022
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624106316
DOI
出版ステータスPublished - 2022
イベントAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022 - San Diego, United States
継続期間: 2022 1月 32022 1月 7

出版物シリーズ

名前AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022
国/地域United States
CitySan Diego
Period22/1/322/1/7

ASJC Scopus subject areas

  • 航空宇宙工学

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