Experimental and numerical studies of pressure effects on syngas combustor emissions

CORC > 工程热物理研究所 > 中国科学院工程热物理研究所 > 中国科学院工程热物理所（论文库） > 期刊论文（SCI）

	Experimental and numerical studies of pressure effects on syngas combustor emissions
	Wang, Hanlin 1,2,3; Lei, Fulin 1,2; Shao, Weiwei 1,2; Zhang, Zhedian 1,2; Liu, Yan 1,2; Xiao, Yunhan 1,2
刊名	APPLIED THERMAL ENGINEERING
	2016-06-05
卷号	102 页码:318-328
关键词	Syngas combustor Pollutant emissions Pressure effects NOx formation pathways
英文摘要	Pressure effects on NOx and CO emissions of a model syngas combustor were experimentally and numerically studied. The validated numerical method was employed to analyze pressure effects on the combustor emissions such as different mixing levels and extra reactant addition. The model combustor, fueled with 10 MJ/N m(3) coal-derived syngas, was installed in a pressurized test-rig, and emissions were measured within 0.1-0.35 MPa. Based on the flow, temperature and species fields calculated by the CFD method, a chemical reactor network (CRN) model was established. With a detailed chemical scheme, the emissions calculated by the CRN model agreed well with experimental results. The model was then employed to calculate emissions within pressure range from 0.1 to 2.0 MPa, with the adiabatic flame temperature in the primary zone varied from 1477 to 2317 K. The calculated NOx and CO emissions generally showed exponential relationship with the operating pressure, except that the NOx emission decreased at higher pressure when the primary adiabatic flame temperature was lower than 1800 K. Through the analyses of the NOx formation pathways, it was found that the higher pressure would generally enhance the N2O pathway, which dominated NOx formation at low temperature, but NOx emission concentration through N2O pathway decreased with pressure above 1.0 MPa at low temperature, which could explain the NOx emission behavior. The CRN modeling method was applied to analyze the effects of pressure on emission behaviors under the different mixing modes and with the extra reactant such as H2O and NH3 in fuel. Premixed and steam dilution burning modes showed better performance on reducing emissions at elevated pressures. NH3 could obviously increase the emission levels, especially at low pressure. Comprehensive understanding of the relationship between the emissions and the operating pressure in full pressure range was obtained, which could be valuable for the predicting and analyzing the syngas combustor pollutant emissions. (C) 2016 ElSevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
关键词[WOS]	CARBON MONOXIDE/HYDROGEN MIXTURES ; GAS-TURBINE COMBUSTOR ; HIGH-TEMPERATURE ; FLAME STRUCTURE ; NOX EMISSIONS ; NATURAL-GAS ; HYDROCARBONS ; DILUTION ; IGNITION ; REACTOR
收录类别	SCI
语种	英语
WOS记录号	WOS:000379270300035
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/112493]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Res Ctr Clean Energy & Power, Lianyungang 222069, Jiangsu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hanlin,Lei, Fulin,Shao, Weiwei,et al. Experimental and numerical studies of pressure effects on syngas combustor emissions[J]. APPLIED THERMAL ENGINEERING,2016,102:318-328.
APA	Wang, Hanlin,Lei, Fulin,Shao, Weiwei,Zhang, Zhedian,Liu, Yan,&Xiao, Yunhan.(2016).Experimental and numerical studies of pressure effects on syngas combustor emissions.APPLIED THERMAL ENGINEERING,102,318-328.
MLA	Wang, Hanlin,et al."Experimental and numerical studies of pressure effects on syngas combustor emissions".APPLIED THERMAL ENGINEERING 102(2016):318-328.