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
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| 2022-02-17 | |
| Source Publication | FRONTIERS IN ENERGY RESEARCH
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| ISSN | 2296-598X |
| Volume | 10Pages:11 |
| Corresponding Author | Li, Xing(lixing@ms.giec.ac.cn) |
| Abstract | 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. |
| Keyword | non-premixed laminar jet flame O-2 CO2 coflow chemical effect third-body effect transport property |
| DOI | 10.3389/fenrg.2022.847947 |
| WOS Keyword | OXY-FUEL COMBUSTION ; DIFFUSION FLAME ; HIGH-PRESSURE ; EXTINCTION CHARACTERISTICS ; BURNING VELOCITY ; PULVERIZED COAL ; CO2 ; AIR ; BEHAVIOR ; DILUTION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[52176139] ; DNL Cooperation Fund, CAS[DNL202006] |
| WOS Research Area | Energy & Fuels |
| Funding Organization | National Natural Science Foundation of China ; DNL Cooperation Fund, CAS |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:000765073900001 |
| Publisher | FRONTIERS MEDIA SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/35944 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Xing |
| Affiliation | 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 |
| Recommended Citation 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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