Experimental Study on Propane/Air Flame Propagation Characteristics in a Disc-Like Gap Chamber

doi:10.1080/00102202.2018.1516647

	Experimental Study on Propane/Air Flame Propagation Characteristics in a Disc-Like Gap Chamber
	Jiang, Liqiao 1,2,3; Su, Hang 1; Huo, Jiepeng 1; Li, Xing 1; Yang, Haolin 1; Zhao, Daiqing 1,2,3
刊名	COMBUSTION SCIENCE AND TECHNOLOGY
	2019-07-03
卷号	191 期号:7 页码:1168-1183
关键词	Microscale effects Disc-Like gap chamber Flame speed Flame wrinkles
ISSN号	0010-2202
DOI	10.1080/00102202.2018.1516647
通讯作者	Jiang, Liqiao(jianglq@ms.giec.ac.cn)
英文摘要	A disc-like gap chamber was developed to investigate the microscale effects on flame propagation characteristics in closed chamber, which is very important to understand the combustion process in micro internal combustion engines. Under initially normal pressure and temperature, the morphology and evolution of outwardly propagating flame, the flammable limit, flame speed and flame instability of propane-air flames influenced by gap width and equivalence ratio were experimentally studied. The results show that, as the gap width nearly equals to the quenching distance, the sustained propagation was possible only with rich flames. The smooth flames and wrinkled flames were observed. It clearly shows that the flame wrinkles developed gradually instead of instantaneously. The flame speed was slower in the 2.0 mm gap chamber than in a conventional combustion bomb, and the flame speed decreased with the increase of flame radius. As a result, the flame acceleration was not observed in present experiments. With the smaller gap width, the wrinkled flame occurred early, and the flame speed was slower. Due to the geometry of disc-like gap chamber, simple theoretical analysis indicates that the heat loss and elevated pressure play important roles in reducing flame speed.
资助项目	National Key Basic Research Program of China[2014CB239600] ; National Natural Science Foundation of China[51336010,50806079] ; Science and Technology Project of Guangdong Province[2016A040403095]
WOS关键词	MARKSTEIN NUMBERS ; COMBUSTION ; ACCELERATION ; CHANNELS ; NONSLIP ; TUBES ; AIR
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000472544400006
资助机构	National Key Basic Research Program of China ; National Natural Science Foundation of China ; Science and Technology Project of Guangdong Province
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25181]
专题	中国科学院广州能源研究所
通讯作者	Jiang, Liqiao
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China 3.Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Liqiao,Su, Hang,Huo, Jiepeng,et al. Experimental Study on Propane/Air Flame Propagation Characteristics in a Disc-Like Gap Chamber[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2019,191(7):1168-1183.
APA	Jiang, Liqiao,Su, Hang,Huo, Jiepeng,Li, Xing,Yang, Haolin,&Zhao, Daiqing.(2019).Experimental Study on Propane/Air Flame Propagation Characteristics in a Disc-Like Gap Chamber.COMBUSTION SCIENCE AND TECHNOLOGY,191(7),1168-1183.
MLA	Jiang, Liqiao,et al."Experimental Study on Propane/Air Flame Propagation Characteristics in a Disc-Like Gap Chamber".COMBUSTION SCIENCE AND TECHNOLOGY 191.7(2019):1168-1183.