Modeling bubble heat transfer in gas-solid fluidized beds using DEM

被引：42

作者：

Patil, Amit V. ^{[1
]}

Peters, E. A. J. F. ^{[1
]}

Kolkman, T. ^{[1
]}

Kuipers, J. A. M. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Chem & Chem Engn, Multiphase Reactors Grp, NL-5600 MB Eindhoven, Netherlands

来源：

CHEMICAL ENGINEERING SCIENCE | 2014年 / 105卷

基金：

欧洲研究理事会;

关键词：

Fluidized beds; Discrete Element Method; Heat transfer coefficient; Davidson and Harrison bubble model; DIRECT NUMERICAL-SIMULATION; SINGLE ORIFICE; FLOW; WALL; HYDRODYNAMICS; PARTICLES; BEHAVIOR; MASS;

D O I：

10.1016/j.ces.2013.11.001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Discrete element method (DEM) simulations of a pseudo 2-D fluidized bed at non-isothermal conditions are presented. First implementation details are discussed. This is followed by a validation study where heating of a packed column by a flow of heated fluid is considered. Next hot gas injected into a colder bed that is slightly above minimum fluidization conditions is modeled. In this study bubbles formed in monodisperse beds of different glass particle sizes (1 mm, 2 mm and 3 mm) and with a range of injection temperatures (300-900 K) are analyzed. Bubble heat transfer coefficients in fluidized beds are reported and compared with values produced by the Davidson and Harrison model. (C) 2013 Elsevier Ltd. All rights reserved,

引用

页码：121 / 131

页数：11

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