One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction

doi:10.1016/j.energy.2020.118659

GIEC OpenIR

	One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction
	Ren, Shoujun 1,2,3,4; Yang, Haolin1,3,4 ; Jiang, Liqiao1,3,4 ; Zhao, Daiqing1,2,3,4 ; Wang, Xiaohan1,3,4
	2020-11-15
发表期刊	ENERGY
ISSN	0360-5442
卷号	211 页码:12
通讯作者	Ren, Shoujun(rensj@ms.giec.ac.cn)
摘要	A novel vortex-tube combustor with axial fuel injection for NOx reduction was proposed to overcome the instability of ultra-lean combustion. The stability limit, flame configuration, NOx and CO emissions, and flame structure were investigated experimentally under various global equivalence ratios and fuel flow rates. The mechanisms of NOx emission reduction were analyzed by numerical simulation. Results show that the limit of global equivalence ratio can be as low as 0.01 and the amplitude of pressure fluctuation is always less than 1300 Pa, indicating fairly good performance in combustion stabilization of the combustor. In the operation range, there is a trade-off region with low NOx and CO simultaneously. The diffusion-like flame structure in this combustor can enhance the local equivalence ratio, whilst the flow field structure can also promote the transport of chemical enthalpy to the flame front, thus facilitating the stabilization. The enhanced stabilization enables the ultra-lean combustion and the ensued small area of the high-temperature zone to conduct, as well as the low NOx formation through reducing thermal NO. The local fuel-rich region and the flow field structure can promote the NOx to be reduced further via the Fenimore mechanism. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	Vortex-tube combustor Axial fuel injection Diffusion-like flame NOx emissions Stability limit
DOI	10.1016/j.energy.2020.118659
关键词[WOS]	FLAME PROPAGATION ; FLOW ; MECHANISMS ; EMISSIONS
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Plan of China[2016YFE0127500]
WOS研究方向	Thermodynamics ; Energy & Fuels
项目资助者	National Key Research and Development Plan of China
WOS类目	Thermodynamics ; Energy & Fuels
WOS记录号	WOS:000591603900003
出版者	PERGAMON-ELSEVIER SCIENCE LTD
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/344007/34899
专题	中国科学院广州能源研究所
通讯作者	Ren, Shoujun
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Jiangsu Prov Key Lab Aerosp Power Syst, Nanjing 210016, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, 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. One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction[J]. ENERGY,2020,211:12.
APA	Ren, Shoujun,Yang, Haolin,Jiang, Liqiao,Zhao, Daiqing,&Wang, Xiaohan.(2020).One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction.ENERGY,211,12.
MLA	Ren, Shoujun,et al."One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction".ENERGY 211(2020):12.