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Numerical study on supersonic combustion of hydrogen and its mixture with Ethylene and methane with strut injection
Ma SG(马素刚); Zhong FQ(仲峰泉); Zhang XY(张新宇)
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2018-04-12
Volume43Issue:15Pages:7591-7599
ISSN0360-3199
Abstract

In this paper, supersonic combustion and flow field of hydrogen and its mixture with ethylene and methane from strut injections in a Mach 2 supersonic flow are studied numerically. The fuel mixture of hydrogen, methane and ethylene represents the major products of pyrolysis of hydrocarbon fuels with large molecules such as kerosene as it acts as coolant and flows through cooling channels and absorbs heat. Detached Eddy Simulation with a reduced kinetic mechanism and steady flamelet model are applied to simulate turbulent combustion. The calculated temperature profiles of hydrogen are compared to the experimental results of DLR supersonic combustor for validation of the present numerical method. The supersonic combustion flows associated with shock waves, turbulent vortices and flame structures are studied. With addition of methane and ethylene, the flame zone moves further downstream of the strut and the maximum flow temperature at chamber exit decreases by 200 K. With analysis of total temperature ratios, it is found that combustion efficiency for hydrogen combustion is 0.91 and it decreases to 0.78 for the fuel mixture. The calculation of ignition delay time and flame speed reveals that fuel mixture of hydrogen and hydrocarbons has considerably larger delay time and smaller flame speed, that contributes to the weakened flame zone and lower combustion efficiency. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

KeywordDetached Eddy Simulation Reduced Kinetic Mechanism Supersonic Combustion Hydrogen Hydrocarbon
DOI10.1016/j.ijhydene.2018.03.007
Indexed BySCI ; EI
Language英语
WOS IDWOS:000430519600041
WOS KeywordTurbulent Combustion ; Scramjet Combustor ; Model ; Mechanisms ; Simulation ; Efficient ; Kerosene
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
Funding OrganizationNational Natural Science Foundation of China(91441102 ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; 11672307)
Classification二类/q1
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77470
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Ma SG,Zhong FQ,Zhang XY. Numerical study on supersonic combustion of hydrogen and its mixture with Ethylene and methane with strut injection[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(15):7591-7599.
APA 马素刚,仲峰泉,&张新宇.(2018).Numerical study on supersonic combustion of hydrogen and its mixture with Ethylene and methane with strut injection.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(15),7591-7599.
MLA 马素刚,et al."Numerical study on supersonic combustion of hydrogen and its mixture with Ethylene and methane with strut injection".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.15(2018):7591-7599.
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