Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Experimental and Numerical Study on the Combustion Characteristics of a Laminar Non-Premixed Methane Jet Flame in Oxygen/Carbon Dioxide Coflow | |
Zhang, Fan1; Li, Xing2,3,4; Xie, Shengrong2,5; Wang, Junxiong2; Wang, Xiaohan2 | |
2022-02-17 | |
发表期刊 | FRONTIERS IN ENERGY RESEARCH |
ISSN | 2296-598X |
卷号 | 10页码:11 |
通讯作者 | Li, Xing(lixing@ms.giec.ac.cn) |
摘要 | The combustion characteristics of laminar non-premixed CH4 jet flame in an O-2/CO2 coflows with different oxygen mole fractions were studied experimentally. The flame heights at different oxygen concentrations and fuel jet velocity were obtained. The experimental observation shows that the luminosity of the CH4 jet flame in O-2/CO2 coflow is different from that of the flame in air stream. A two-dimensional numerical study of a laminar non-premixed CH4 jet flame in the O-2/CO2 coflow with the O-2 mole fraction of 0.35 was conducted to analyze the effects of CO2 dilution on the flame. The distribution of OH radicals in the flame was measured experimentally using planar laser-induced fluorescence (PLIF) to validate the computational method adopted in this work, and the computational and experimental results of the OH distributions showed good consistency at various fuel flow velocities. Three artificial species were created in the numerical experiment to analyze the effects of the chemical reactions, third-body collisions, and transport properties of CO2 on the height, width, and temperature distribution of the flame. The results showed that CO2 participation in chemical reactions exerts significant effects on the flame. However, the influences of the third-body effects and transport properties of CO2 on the jet flame are unremarkable. The global reaction pathways and distributions of important species in the laminar non-premixed CH4 jet flame were analyzed in detail to investigate the influence mechanisms of CO2 on the flame height and temperature. The entire flame can be divided into two oxidation parts, which separated by the boundary of the HCCO. The H, O, and OH concentrations and distributions in different parts of the flame were influenced by CO2 dilution, resulting in different flame heights and temperature distributions. |
关键词 | non-premixed laminar jet flame O-2 CO2 coflow chemical effect third-body effect transport property |
DOI | 10.3389/fenrg.2022.847947 |
关键词[WOS] | OXY-FUEL COMBUSTION ; DIFFUSION FLAME ; HIGH-PRESSURE ; EXTINCTION CHARACTERISTICS ; BURNING VELOCITY ; PULVERIZED COAL ; CO2 ; AIR ; BEHAVIOR ; DILUTION |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[52176139] ; DNL Cooperation Fund, CAS[DNL202006] |
WOS研究方向 | Energy & Fuels |
项目资助者 | National Natural Science Foundation of China ; DNL Cooperation Fund, CAS |
WOS类目 | Energy & Fuels |
WOS记录号 | WOS:000765073900001 |
出版者 | FRONTIERS MEDIA SA |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/35944 |
专题 | 中国科学院广州能源研究所 |
通讯作者 | Li, Xing |
作者单位 | 1.Guangzhou Univ, Sch Mech & Elect Engn, Guangzhou, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Peoples R China 3.Dalian Natl Lab Clean Energy, Dalian, Peoples R China 4.Hunan Inst Humanities Sci & Technol, Dept Energy & Mech Engn, Loudi, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Fan,Li, Xing,Xie, Shengrong,et al. Experimental and Numerical Study on the Combustion Characteristics of a Laminar Non-Premixed Methane Jet Flame in Oxygen/Carbon Dioxide Coflow[J]. FRONTIERS IN ENERGY RESEARCH,2022,10:11. |
APA | Zhang, Fan,Li, Xing,Xie, Shengrong,Wang, Junxiong,&Wang, Xiaohan.(2022).Experimental and Numerical Study on the Combustion Characteristics of a Laminar Non-Premixed Methane Jet Flame in Oxygen/Carbon Dioxide Coflow.FRONTIERS IN ENERGY RESEARCH,10,11. |
MLA | Zhang, Fan,et al."Experimental and Numerical Study on the Combustion Characteristics of a Laminar Non-Premixed Methane Jet Flame in Oxygen/Carbon Dioxide Coflow".FRONTIERS IN ENERGY RESEARCH 10(2022):11. |
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