Experimental and Numerical Study on the Combustion Characteristics of a Laminar Non-Premixed Methane Jet Flame in Oxygen/Carbon Dioxide Coflow

doi:10.3389/fenrg.2022.847947

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	Experimental and Numerical Study on the Combustion Characteristics of a Laminar Non-Premixed Methane Jet Flame in Oxygen/Carbon Dioxide Coflow
	Zhang, Fan 1; Li, Xing 2,3,4; Xie, Shengrong 2,5; Wang, Junxiong 2; 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	被引频次：2[WOS] [WOS记录] [WOS相关记录]
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.