Fundamental study on pulse detonation engine with liquid fuel for aerospace propulsion system

Ryuji Nakawatase, Yoichiro Nishimura, Shigeru Aso, Yasuhiro Tani

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Pulse Detonation Engines (PDEs) have the potential to revolutionize aerospace propulsion system for aerospace vehicles. The PDE will require the use of liquid fuels for many practical applications because liquid fuels axe denser compared with gaseous fuels. It is widely recognized that the propagation velocity of liquid fueled detonation with large droplets is significantly lower than the equivalent gas-phase Chapman-Jouguet detonation velocity. Therefore it is important to generate fine droplets. Generally liquid fuels are atomized by fuel injection nozzles which used for diesel engines of automobile and the diameters of the droplets are relatively large. In the present study the ultrasonic atomizer is applied in order to generate finer droplets for the first time. To evaluate the application to PDEs of the ultrasonic atomizer a new PDE facility has been built. Jet A-l is used as a liquid fuel and oxygen as an oxidant. The dimensions of the detonation tube axe 50 mm diameter by 2348 mm long. The hydrogen/oxygen pre-detonator is used to ignite. Experiments are performed initially at atmospheric pressure. Through the present experiments the present authors have succeeded in the initiation of detonation in atomized Jet A-l droplets which axe generated by ultrasonic atomizers.

本文言語英語
ホスト出版物のタイトルInternational Astronautical Federation - 59th International Astronautical Congress 2008, IAC 2008
ページ6576-6581
ページ数6
出版ステータス出版済み - 12 1 2008
イベント59th International Astronautical Congress 2008, IAC 2008 - Glasgow, 英国
継続期間: 9 29 200810 3 2008

出版物シリーズ

名前International Astronautical Federation - 59th International Astronautical Congress 2008, IAC 2008
10

その他

その他59th International Astronautical Congress 2008, IAC 2008
国/地域英国
CityGlasgow
Period9/29/0810/3/08

All Science Journal Classification (ASJC) codes

  • 宇宙惑星科学
  • 航空宇宙工学
  • 天文学と天体物理学

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