The Deposition and Burning Characteristics During Slagging Co-Firing Coal and Wood: Modeling and Numerical Simulation
文献类型：期刊论文
| 作者 | Wang, Xiaohan; Zhao, Daiqing; Jiang, Liqiao; Yang, Weibin |
| 刊名 | combustion science and technology
 |
| 出版日期 | 2009 |
| 卷号 | 181期号:5页码:710-728 |
| 关键词 | Biomass Co-combustion Numerical simulation Pulverized coal Slagging combustion |
| 通讯作者 | wangxh@ms.giec.ac.cn |
| 中文摘要 | numerical analysis was used to study the deposition and burning characteristics of combining co-combustion with slagging combustion technologies in this paper. the pyrolysis and burning kinetic models of different fuels were implanted into the wbsf-pcc2 (wall burning and slag flow in pulverized co-combustion) computation code, and then the slagging and co-combustion characteristicsespecially the wall burning mechanism of different solid fuels and their effects on the whole burning behavior in the cylindrical combustor at different mixing ratios under the condition of keeping the heat input samewere simulated numerically. the results showed that adding wood powder at 25% mass fraction can increase the temperature at the initial stage of combustion, which is helpful to utilize the front space of the combustor. adding wood powder at a 25% mass fraction can increase the reaction rate at the initial combustion stage; also, the coal ignitability is improved, and the burnout efficiency is enhanced by about 5% of suspension and deposition particles, which is helpful for coal particles to burn entirely and for combustion devices to minimize their dimensions or sizes. the results also showed that adding wood powder at a proper ratio is helpful to keep the combustion stability, not only because of the enhancement for the burning characteristics, but also because the running slag layer structure can be changed more continuously, which is very important for avoiding the abnormal slag accumulation in the slagging combustor. the theoretic analysis in this paper proves that unification of co-combustion and slagging combustion technologies is feasible, though more comprehensive and rigorous research is needed. |
| 英文摘要 | numerical analysis was used to study the deposition and burning characteristics of combining co-combustion with slagging combustion technologies in this paper. the pyrolysis and burning kinetic models of different fuels were implanted into the wbsf-pcc2 (wall burning and slag flow in pulverized co-combustion) computation code, and then the slagging and co-combustion characteristicsespecially the wall burning mechanism of different solid fuels and their effects on the whole burning behavior in the cylindrical combustor at different mixing ratios under the condition of keeping the heat input samewere simulated numerically. the results showed that adding wood powder at 25% mass fraction can increase the temperature at the initial stage of combustion, which is helpful to utilize the front space of the combustor. adding wood powder at a 25% mass fraction can increase the reaction rate at the initial combustion stage; also, the coal ignitability is improved, and the burnout efficiency is enhanced by about 5% of suspension and deposition particles, which is helpful for coal particles to burn entirely and for combustion devices to minimize their dimensions or sizes. the results also showed that adding wood powder at a proper ratio is helpful to keep the combustion stability, not only because of the enhancement for the burning characteristics, but also because the running slag layer structure can be changed more continuously, which is very important for avoiding the abnormal slag accumulation in the slagging combustor. the theoretic analysis in this paper proves that unification of co-combustion and slagging combustion technologies is feasible, though more comprehensive and rigorous research is needed. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | thermodynamics ; energy & fuels ; engineering, multidisciplinary ; engineering, chemical |
| 研究领域[WOS] | thermodynamics ; energy & fuels ; engineering |
| 关键词[WOS] | combustion |
| 资助信息 | national natural science foundation of china [50806080] |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000265634200002 |
| 公开日期 | 2010-09-15 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/3290]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiaohan,Zhao, Daiqing,Jiang, Liqiao,et al. The Deposition and Burning Characteristics During Slagging Co-Firing Coal and Wood: Modeling and Numerical Simulation[J]. combustion science and technology,2009,181(5):710-728. |
| APA | Wang, Xiaohan,Zhao, Daiqing,Jiang, Liqiao,&Yang, Weibin.(2009).The Deposition and Burning Characteristics During Slagging Co-Firing Coal and Wood: Modeling and Numerical Simulation.combustion science and technology,181(5),710-728. |
| MLA | Wang, Xiaohan,et al."The Deposition and Burning Characteristics During Slagging Co-Firing Coal and Wood: Modeling and Numerical Simulation".combustion science and technology 181.5(2009):710-728. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。