Large-scale hydrogen-air continuous detonation combustor
Large-scale hydrogen-air continuous detonation combustor
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DOI：
10.1016/j.ijhydene.2014.11.112
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发表时间：
2015-01-21
影响因子：
7.2
通讯作者：
Shamshin, I. O.
中科院分区：
文献类型：
--
作者：
Frolov, S. M.;Aksenov, V. S.;Shamshin, I. O.
为研究不同设计因素对连续爆震燃烧室工作过程和连续爆震推进性能的影响，设计、制造和试验了大型连续爆震燃烧室。实验表明，将环形燃烧室的进气狭缝从2 mm加宽到15 mm，可使燃烧室内同时循环的爆震波数从4个减少到1个，并最终过渡到具有类似脉冲爆轰的间歇（脉冲）纵向反应波的工作模式。通过在CDC出口喷嘴处安装一个形状障碍，提供燃烧室横截面的阻塞，可以增加dw的数量和CDC产生的推力。在燃料组件的总质量流量为7.5 kg/s时，CDC产生的最大净推力达到6 kN，而基于燃料的最大比冲达到类似于3000 s。Copyright (C) 2014, Hydrogen Energy Publications， LLC.由Elsevier Ltd.出版。版权所有。
A large-scale continuous detonation combustor (CDC) has been designed, fabricated and tested to study the effect of different design elements on the operation process and CDC propulsion performance. It has been shown experimentally that widening of the air-inlet slit in the annular combustion chamber from 2 to 15 mm leads to a decrease in the number of detonation waves (DWs) simultaneously circulating in the combustor from four to one and, finally, to transition to the operation mode with intermittent (pulse) longitudinal reaction waves resembling pulse detonations. The number of DWs and the thrust produced by the CDC can be increased by installing a shaped obstacle at the CDC exit nozzle providing the blockage of the combustor cross section. The maximum net thrust produced by the CDC attained 6 kN at the total mass flow rate of fuel components of 7.5 kg/s, whereas the maximum fuel-based specific impulse attained similar to 3000 s. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.