General modeling and numerical simulation of the burning characteristics of porous chars

doi:10.1016/j.combustflame.2012.02.025

GIEC OpenIR > 中国科学院广州能源研究所

	General modeling and numerical simulation of the burning characteristics of porous chars
	Wang, Xiaohan1 ; Zeng, Xiaojun ; Yang, Haolin; Zhao, Daiqing
	2012-07-01
发表期刊	COMBUSTION AND FLAME
卷号	159 期号:7 页码:2457-2465
摘要	The modeling and numerical simulation of char burning rate within the temperature range of 1273-1700 K, which is the normal range in most boilers and furnaces, were carried out in this paper. Considering the differences in pore structure between char and non-porous carbon, several key issues were studied and discussed, including fresh char reactivity and its change during the burning process, and the effects of internal oxygen diffusion on the char burning rate. In the section of modeling, dozens of model equations were given and then implanted into the computational code. In the section of numerical simulation, the predicted values were compared with the experimental data gained from the entrained flow reactor including carbon conversion and apparent diameter change of coal char along the tube length, and good agreement was obtained. Additionally, the numerical simulation for biomass char burning was also done and the applicability of the developed model was discussed. The developed char burning model needs few empirical parameters, which can be used conveniently in the numerical simulation of actual combustion process. (C) 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
文章类型	Article
关键词	Char Burning Modeling Numerical Simulation Coal Biomass
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.combustflame.2012.02.025
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Engineering
关键词[WOS]	COAL CHARS ; CARBON PARTICLE ; KINETIC-PARAMETERS ; PULVERIZED COAL ; COMBUSTION ; GASIFICATION ; OXIDATION ; ACTIVATION ; IGNITION ; BIOMASS
收录类别	SCI
语种	英语
WOS类目	Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical ; Engineering, Mechanical
WOS记录号	WOS:000304213700020
引用统计	被引频次：23[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/344007/10564
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, 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	Wang, Xiaohan,Zeng, Xiaojun,Yang, Haolin,et al. General modeling and numerical simulation of the burning characteristics of porous chars[J]. COMBUSTION AND FLAME,2012,159(7):2457-2465.
APA	Wang, Xiaohan,Zeng, Xiaojun,Yang, Haolin,&Zhao, Daiqing.(2012).General modeling and numerical simulation of the burning characteristics of porous chars.COMBUSTION AND FLAME,159(7),2457-2465.
MLA	Wang, Xiaohan,et al."General modeling and numerical simulation of the burning characteristics of porous chars".COMBUSTION AND FLAME 159.7(2012):2457-2465.