TED-AJ03-291 A PRELIMINARY STUDY FOR DEVELOPMENT FOR HYDROGEN : FUELED PULSE DETONATION ENGINES
スポンサーリンク
概要
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A Pulse detonation engine (PDE) holds promise to increase performance of air breathing propulsion systems by taking advantage of high cycle efficiency due to the constant volume heat addition characteristics of detonative combustion. Currently, the PDE is an active research topic with experimental developments reported by Hinkey et al. [2-3], Schauer et al. [4] and Wintenberger et al. [5]. In addition, Hinkey et al. presented a review of past pulse detonation experiments. Several of these investigations attempted multiple cycle experiments, however, it is uncertain as to whether detonations were produced on a regular basis in those tests. The experimental results for development of hydrogen-fueled pulse detonation engine are discussed in this paper. Although characteristics of premixed detonation of hydrogen-air mixture is well investigated, characteristic of detonation in a non-premixed or partially premixed gases has not been studied yet. As the first step, a single cycle test was conducted to research of the deflagration to detonation transition (DDT) of hydrogen / air directly injected to the combustion chamber. A schematic of the apparatus is shown in Fig. A-1. As the second step, a multiple cycle test up to 10 Hz was conducted to demonstrate the feasibility of multiple cycle operation of PDE. The thrust wall Pressure, tube wall pressure along the tube, and ionization current were measured. Figure A-2 shows a typical pressure record on the thrust wall of the multiple cycle test. A sharp pressure spike is observed. It shows that the overdriven detonation wave was formed at the thrust wall. The injection systems were also studied for single injection and double injection. It should be noted that, although the detonation waves could not initiated instantaneously at the igniter, the resulted impulse on the thrust wall could be improved by the double injection system as compared with the single injection system.[figure]
- 一般社団法人日本機械学会の論文
著者
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Minagawa Takashi
Graduate School Of Mechanical Engineering Saitama University
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Ohyagi S
Department Of Mechanical Engineering Saitama University
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Ohyagi Shigeharu
Department Of Mechanical Engineering Faculty Of Engineering Saitma University
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Sakurai Takashi
Graduate School Of Mechanical Engineering Saitama University
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Sakurai T
Kanagawa Dental Coll. Yokosuka Jpn
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Obara Tetsuro
Department Of Mechanical Engineering Saitama University
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YOSHIHASHI Teruo
Department of Mechanical Engineering, Faculty of Engineering, Saitma University
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Yoshihashi Teruo
Department Of Mechanical Engineering Saitama University
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Yoshihashi Teruo
Department Of Mechanical Engineering Faculty Of Engineering Saitma University
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Obara Tetsuro
Department Of Mechanical Engineering Faculty Of Engineering Saitama University
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