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Combustion characteristics of non-premixed methane micro-jet flame in coflow air and thermal interaction between flame and micro tube
Li, Xing1; Zhang, Jing; Yang, Haolin; Jiang, Liqiao; Wang, Xiaohan; Zhao, Daiqing1
2017-02-05
发表期刊APPLIED THERMAL ENGINEERING
卷号112页码:296-303
摘要The combustion characteristics of non-premixed methane micro-jet flame in coflow air were investigated experimentally and numerically. A detailed reaction mechanism was employed in the two-dimension numerical computation. The thermal interaction between the flame and solid tube was considered by using fluid-solid coupled thermal boundaries in the numerical computation. Four typical flames, lifted flame, attached flame, hemisphere flame and umbrella flame, were observed in different fuel flow velocity ranges in experiments. The flame heights, blow off and extinction limits in coflow airs at different velocities were measured. The OH and CH distributions of non-premixed micro-jet flames were obtained by experiments, and the computational results agree well with those from the experiments. The computational temperature distributions show that there are thermal interactions between flames and solid tube. The heat exchanges through surfaces of the solid tube were analyzed in detail. The fresh fuel gas in the solid tube is preheated by the thermal recirculation. Consequently, the combustion intensity of the micro-jet flame is enhanced. The thermal interaction is essentially affected by the flame shape, and it is significant for the hemisphere flame. (C) 2016 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Non-premixed Methane Micro-jet Flame Coflow Air Combustion Characteristics Thermal Interaction
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者National Natural Science Foundation of China(51336010) ; National Basic Research Program of China(2014CB239601) ; Science and Technology Project of Guangdong Province(2016A040403095) ; National Natural Science Foundation of China(51336010) ; National Basic Research Program of China(2014CB239601) ; Science and Technology Project of Guangdong Province(2016A040403095)
DOI10.1016/j.applthermaleng.2016.10.082
研究领域[WOS]Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
关键词[WOS]DIFFUSION FLAMES ; TEMPERATURE-GRADIENT ; RADIAL MICROCHANNEL ; H-2/AIR MIXTURE ; SPLITTING LIMIT ; NARROW CHANNEL ; HEATED CHANNEL ; WALL CAVITIES ; STABILIZATION ; EXTINCTION
收录类别SCI
语种英语
资助者National Natural Science Foundation of China(51336010) ; National Basic Research Program of China(2014CB239601) ; Science and Technology Project of Guangdong Province(2016A040403095) ; National Natural Science Foundation of China(51336010) ; National Basic Research Program of China(2014CB239601) ; Science and Technology Project of Guangdong Province(2016A040403095)
WOS类目Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
WOS记录号WOS:000394831500030
引用统计
被引频次:11[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/344007/14053
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
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Li, Xing,Zhang, Jing,Yang, Haolin,et al. Combustion characteristics of non-premixed methane micro-jet flame in coflow air and thermal interaction between flame and micro tube[J]. APPLIED THERMAL ENGINEERING,2017,112:296-303.
APA Li, Xing,Zhang, Jing,Yang, Haolin,Jiang, Liqiao,Wang, Xiaohan,&Zhao, Daiqing.(2017).Combustion characteristics of non-premixed methane micro-jet flame in coflow air and thermal interaction between flame and micro tube.APPLIED THERMAL ENGINEERING,112,296-303.
MLA Li, Xing,et al."Combustion characteristics of non-premixed methane micro-jet flame in coflow air and thermal interaction between flame and micro tube".APPLIED THERMAL ENGINEERING 112(2017):296-303.
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