Computational fluid dynamics simulation and parametric study of coal gasification in a circulating fluidized bed reactor

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）

	Computational fluid dynamics simulation and parametric study of coal gasification in a circulating fluidized bed reactor
	Zhang, Yawen 1,2,3; Lei, Fulin 1,2; Xiao, Yunhan 1,2
刊名	ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
	2015-03-01
卷号	10 期号:2 页码:307-317
关键词	CFD gasification circulating fluidized bed two-fluid model
英文摘要	A computational fluid dynamics model based on the Eulerian-Eulerian multiphase framework was implemented to simulate the coal gasification processes in a circulating fluidized bed gasifier. The standard k-epsilon turbulence model is used for gas phase, and the solid phases are modeled with kinetic theory of granular flow. A lumped chemical reaction model was compiled based on the chemical percolation devolatilization model and the METC Gasifier Advanced Simulation gasification model. The user-defined functions are developed to calculate rates of chemical reactions and to recirculate solids from the riser exit to the solid recycle inlet. Sensitivity analysis was performed on char-steam gasification reaction to choose an appropriate kinetic rate in this study. The calculated gas composition out of the riser was first compared with experimental data; then, the flow fields such as solid volume fraction, solid velocity, and species profiles were analyzed, indicating that the model gave reasonable predictions. Furthermore, the effects of the operating temperature, the steam/coal ratio, and the air/coal ratio on the exiting gas composition were numerically studied, and the predicted trends vs these parameters are reasonable and consistent with the findings in the literature, which shows the applicability of the Eulerian multiphase model to simulate coal gasification processes in circulating fluidized bed gasifiers. (c) 2015 Curtin University of Technology and John Wiley & Sons, Ltd.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	ENTRAINED FLOW GASIFICATION ; NUMERICAL-SIMULATION ; KINETIC-THEORY ; RISER SECTION ; GAS-FLOW ; COMBUSTION ; PARTICLES ; PYROLYSIS ; PRESSURE ; GASIFIER
收录类别	SCI
语种	英语
WOS记录号	WOS:000353887600016
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/98917]
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, Key Lab Adv Energy & Power, Inst Engn Thermophys, 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	Zhang, Yawen,Lei, Fulin,Xiao, Yunhan. Computational fluid dynamics simulation and parametric study of coal gasification in a circulating fluidized bed reactor[J]. ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,2015,10(2):307-317.
APA	Zhang, Yawen,Lei, Fulin,&Xiao, Yunhan.(2015).Computational fluid dynamics simulation and parametric study of coal gasification in a circulating fluidized bed reactor.ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,10(2),307-317.
MLA	Zhang, Yawen,et al."Computational fluid dynamics simulation and parametric study of coal gasification in a circulating fluidized bed reactor".ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING 10.2(2015):307-317.