Flow Field and Combustion Characteristics in Localized Stratified Swirling Tubular Flame Burner: Numerical Investigation

doi:10.1080/00102202.2019.1602614

GIEC OpenIR

	Flow Field and Combustion Characteristics in Localized Stratified Swirling Tubular Flame Burner: Numerical Investigation
	Ren, Shoujun 1,2,3; Yang, Haolin2,3 ; Jiang, Liqiao2,3 ; Zhao, Daiqing1,2,3 ; Wang, Xiaohan2,3
	2019-04-13
发表期刊	COMBUSTION SCIENCE AND TECHNOLOGY
ISSN	0010-2202
页码	18
通讯作者	Yang, Haolin(yanghl@ms.giec.ac.cn) ; Zhao, Daiqing(zhaodq@ms.giec.ac.cn)
摘要	A three-dimensional numerical simulation of a localized stratified tubular flame burner is carried out by using propane as fuel. The characteristics of the flow field, species distribution, flame structure, and stability limit are investigated. Results show that in the cold flow field, a specific distribution of species is formed due to the unique inlet structure and the effects of vortex breakdown, in which propane is mainly distributed near the wall, while oxygen is uniformly distributed in the burner. At the burning state, propane and oxygen are mixed at the inlet section of the burner and produce a stratified mixture from fuel lean to fuel rich, thus forming a flame that is similar to a triple flame, which plays an important role in promoting the combustion stability. Based on the localized stratification property and the effect of precessing vortex core, the main reaction takes place in the fuel-rich region (Lewis number <1 for C3H8 as fuel). Hence, the tubular flame easily forms and is hardly extinguished. In addition, the flow field promotes the chemical enthalpy supply to the reaction zone, thereby enhancing combustion. Essentially, this type of burner does not require a uniform premixed gas to establish the tubular flame which differs from the typical tubular flame burner. The stability limit of the localized stratified tubular flame is greatly improved compared with that of the rapidly mixed tubular flame, especially under lean conditions.
关键词	Tubular flame localized stratification combustion characteristics flow field structure stability limit
DOI	10.1080/00102202.2019.1602614
关键词[WOS]	METHANE/OXYGEN COMBUSTION ; LAMINARIZATION ; PROPAGATION
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFE0127500]
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering
项目资助者	National Key Research and Development Program of China
WOS类目	Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical
WOS记录号	WOS:000466684200001
出版者	TAYLOR & FRANCIS INC
引用统计	被引频次：12[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/344007/24859
专题	中国科学院广州能源研究所
通讯作者	Yang, Haolin; Zhao, Daiqing
作者单位	1.Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Jiangsu Prov Key Lab Aerosp Power Syst, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Ren, Shoujun,Yang, Haolin,Jiang, Liqiao,et al. Flow Field and Combustion Characteristics in Localized Stratified Swirling Tubular Flame Burner: Numerical Investigation[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2019:18.
APA	Ren, Shoujun,Yang, Haolin,Jiang, Liqiao,Zhao, Daiqing,&Wang, Xiaohan.(2019).Flow Field and Combustion Characteristics in Localized Stratified Swirling Tubular Flame Burner: Numerical Investigation.COMBUSTION SCIENCE AND TECHNOLOGY,18.
MLA	Ren, Shoujun,et al."Flow Field and Combustion Characteristics in Localized Stratified Swirling Tubular Flame Burner: Numerical Investigation".COMBUSTION SCIENCE AND TECHNOLOGY (2019):18.