Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| General modeling and numerical simulation of the burning characteristics of porous chars | |
Wang, Xiaohan1 ; Zeng, Xiaojun; Yang, Haolin; Zhao, Daiqing
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| 2012-07-01 | |
| Source Publication | COMBUSTION AND FLAME
 |
| Volume | 159Issue:7Pages:2457-2465 |
| Abstract | 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. |
| Subtype | Article |
| Keyword | Char Burning Modeling Numerical Simulation Coal Biomass |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1016/j.combustflame.2012.02.025 |
| WOS Subject Extended | Thermodynamics ; Energy & Fuels ; Engineering |
| WOS Keyword | COAL CHARS ; CARBON PARTICLE ; KINETIC-PARAMETERS ; PULVERIZED COAL ; COMBUSTION ; GASIFICATION ; OXIDATION ; ACTIVATION ; IGNITION ; BIOMASS |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical ; Engineering, Mechanical |
| WOS ID | WOS:000304213700020 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10564 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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