Experimental study of a hydrogen-air rotating detonation combustor

被引：42

作者：

Zhou, Shengbing ^{[1
]}

Ma, Hu ^{[1
]}

Liu, Daokun ^{[2
]}

Yan, Yu ^{[3
]}

Li, Shuai ^{[1
]}

Zhou, Changsheng ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Shanghai Space Prop Technol Res Inst, Shanghai 201109, Peoples R China

[3] Xian Aerosp Prop Inst, Lab Sci & Technol Liquid Rocket Engine, Xian 710100, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Rotating detonation combustor; Rotating detonation wave; Compressor; Air-injection area; Stability; ENGINE; MIXTURES;

D O I：

10.1016/j.ijhydene.2017.04.214

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The rotating detonation engine can generate continuous thrust via one or more detonation waves. In this study, rotating detonation experiments were performed on a combined structure which included a rotating detonation combustor (RDC) and a centrifugal compressor. Air, which functioned as an oxidiser, was obtained from the environment by the compressor, and hydrogen, which was used as fuel, was provided by the supply system. The propagation velocity of the rotating detonation wave (RDW) reached 81% of the Chapman-Jouguet value in experiments. With the increase of the air-injection area, the detonation-wave pressure increased, but the stability decreased. An air-injection area of 495 mm(2) was selected for long-duration experiments, and the frequency of the RDW ranged from 3 to 3.5 kHz. Through the self-adjustment of the combined structure, the air pressure ultimately reached a stable state after a certain period of time, and a stable detonation wave was formed in the RDC. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：14741 / 14749

页数：9

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