Analysis on detonation pressurized combustion characteristic of reformed gas

被引：0
|
作者：
Wu S. [1 ]
Liu Q. [2 ]
Zheng H.-T. [2 ]
机构：
[1] Naval Consumer Representative Office of Engine in Shenyang, the Chinese People's Liberation Army, Shenyang
[2] College of Power and Energy Engineering, Harbin Engineering University, Harbin
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2016年 / 31卷 / 07期
关键词：
Combustor performance; Continuously rotating detonation pressurized combustor; Pressurized ratio; Reformed gas; Steam reforming;
D O I：
10.13224/j.cnki.jasp.2016.07.002
中图分类号：
学科分类号：
摘要：
In order to improve the thermal efficiency of gas turbine, an idea of effective combination of chemically recuperation (CR) with continuously rotating detonation pressurized combustion (CRDPC) was put forward. The effects of different forms of methane steam reforming on the heat recovery, the characteristics of pressurized combustion flow field and combustion performance of reformed gas were separately investigated through experimental and numerical researches. Results show that synergistic catalytic reforming has the best performance, with methane conversion rate of 46.51% and total enthalpy increase rate of 25.28%; the difference of reformed gas components has little effect on the detonation wave flow structure, but the increase of H2 mass fraction can improve the detonation wave propagation speed, and will intensify the precombustion in the contact discontinuity between fresh mixed gas and detonation products from the previous wave; under the premise of the same total pressure and stoichiometric ratio, when H2 mass fraction increases by about 1.1%, the inlet mass flow rate of premixed gasdecreases by about 4.5%, but the pressurized ratio of CRDPC decreases by about 6.0%, mainly due to the precombustion at the contact discontinuity. © 2016, Editorial Department of Journal of Aerospace Power. All right reserved.
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页码：1552 / 1561
页数：9
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