文献类型：期刊文献

英文题名：A particle-to-particle heat transfer model for dense gas-solid fluidized bed of binary mixture

作者：Chang, Jian[1,2];Yang, Shuqing[3];Zhang, Kai[1]

机构：[1]N China Elect Power Univ, Renewable Energy Sch, Beijing 102206, Peoples R China;[2]E China Univ Sci & Technol, Petr Proc Res Ctr, Shanghai 200237, Peoples R China;[3]Zhejiang Ocean Univ, Sch Petr & Chem Engn, Zhoushan 316000, Zhejiang, Peoples R China

年份：2011

卷号：89

期号：7A

起止页码：894

外文期刊名：CHEMICAL ENGINEERING RESEARCH & DESIGN

收录：;EI(收录号：20112114010020);WOS:【SCI-EXPANDED(收录号:WOS:000291919700004)】；

语种：英文

外文关键词：Collision; Heat transfer model; Fluidized bed; Binary mixture; Eulerian simulation; CFD

摘要：A particle-to-particle collisional heat transfer model in the frame of Eulerian-Eulerian approach was proposed in this paper. By incorporating it into the multi-fluid model to close the enthalpy equations, the heat transfer between different particle classes in a gas bubbling fluidized bed of binary mixture was investigated, based on the CFD simulations of particle mixing in literature (Cooper and Coronella, 2005). The results showed that the particle-to-particle heat exchange coefficient between different particle classes increases with increasing the size of large particle class and the superficial gas velocity. The ratios of the particle-to-particle heat transfer to the gas-to-particle heat transfer range from 8.04% to 15.0% for various calculating conditions. In order to better understand the heat transfer behavior in a dense gas-solid fluidized of binary mixture, it is important to take the particle-to-particle heat transfer into account. (C) 2010 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.