Numerical investigation of gas-to-particle cluster convective heat transfer in circulating fluidized beds

Wang Shuyan; Liu Guodong; Wu Yanbo; Chen Juhui; Liu Yongjian; Wei Lixin

doi:10.1016/j.ijheatmasstransfer.2010.03.017

Numerical investigation of gas-to-particle cluster convective heat transfer in circulating fluidized beds

Wang Shuyan^*
, Liu Guodong
, Wu Yanbo
, Chen Juhui
, Liu Yongjian
, Wei Lixin

^*Corresponding author for this work

Daqing Petroleum Institute
School of Energy Science and Engineering, Harbin Institute of Technology
Dalian Jiaotong University

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Convective heat transfer between gas and cluster in a circulating fluidized bed (CFB) riser is numerically studied using a three-dimensional computational fluid dynamic (CFD) model. Distributions of gas velocity and temperature as well as the gas-cluster heat flux and convective heat transfer coefficient are obtained. Variations of heat flux of each particle in the cluster are predicted. The heat flux of the individual particle inside the cluster is smaller than that of an isolated particle. The convective heat transfer coefficients increase with the increase of cluster porosity and Reynolds number. The convective heat transfer coefficients of the downward moving cluster are larger than that of upward moving cluster. Numerical results of an isolated particle are in agreement with data from previously published correlations. Crown

Original language	English
Pages (from-to)	3102-3110
Number of pages	9
Journal	International Journal of Heat and Mass Transfer
Volume	53
Issue number	15-16
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2010.03.017
State	Published - Jul 2010
Externally published	Yes

Keywords

Circulating fluidized bed
Convective heat transfer coefficient
Numerical simulation
Particle cluster

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10.1016/j.ijheatmasstransfer.2010.03.017

Cite this

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title = "Numerical investigation of gas-to-particle cluster convective heat transfer in circulating fluidized beds",

abstract = "Convective heat transfer between gas and cluster in a circulating fluidized bed (CFB) riser is numerically studied using a three-dimensional computational fluid dynamic (CFD) model. Distributions of gas velocity and temperature as well as the gas-cluster heat flux and convective heat transfer coefficient are obtained. Variations of heat flux of each particle in the cluster are predicted. The heat flux of the individual particle inside the cluster is smaller than that of an isolated particle. The convective heat transfer coefficients increase with the increase of cluster porosity and Reynolds number. The convective heat transfer coefficients of the downward moving cluster are larger than that of upward moving cluster. Numerical results of an isolated particle are in agreement with data from previously published correlations. Crown",

keywords = "Circulating fluidized bed, Convective heat transfer coefficient, Numerical simulation, Particle cluster",

author = "Wang Shuyan and Liu Guodong and Wu Yanbo and Chen Juhui and Liu Yongjian and Wei Lixin",

year = "2010",

month = jul,

doi = "10.1016/j.ijheatmasstransfer.2010.03.017",

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volume = "53",

pages = "3102--3110",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

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TY - JOUR

T1 - Numerical investigation of gas-to-particle cluster convective heat transfer in circulating fluidized beds

AU - Shuyan, Wang

AU - Guodong, Liu

AU - Yanbo, Wu

AU - Juhui, Chen

AU - Yongjian, Liu

AU - Lixin, Wei

PY - 2010/7

Y1 - 2010/7

N2 - Convective heat transfer between gas and cluster in a circulating fluidized bed (CFB) riser is numerically studied using a three-dimensional computational fluid dynamic (CFD) model. Distributions of gas velocity and temperature as well as the gas-cluster heat flux and convective heat transfer coefficient are obtained. Variations of heat flux of each particle in the cluster are predicted. The heat flux of the individual particle inside the cluster is smaller than that of an isolated particle. The convective heat transfer coefficients increase with the increase of cluster porosity and Reynolds number. The convective heat transfer coefficients of the downward moving cluster are larger than that of upward moving cluster. Numerical results of an isolated particle are in agreement with data from previously published correlations. Crown

AB - Convective heat transfer between gas and cluster in a circulating fluidized bed (CFB) riser is numerically studied using a three-dimensional computational fluid dynamic (CFD) model. Distributions of gas velocity and temperature as well as the gas-cluster heat flux and convective heat transfer coefficient are obtained. Variations of heat flux of each particle in the cluster are predicted. The heat flux of the individual particle inside the cluster is smaller than that of an isolated particle. The convective heat transfer coefficients increase with the increase of cluster porosity and Reynolds number. The convective heat transfer coefficients of the downward moving cluster are larger than that of upward moving cluster. Numerical results of an isolated particle are in agreement with data from previously published correlations. Crown

KW - Circulating fluidized bed

KW - Convective heat transfer coefficient

KW - Numerical simulation

KW - Particle cluster

UR - https://www.scopus.com/pages/publications/77953293937

U2 - 10.1016/j.ijheatmasstransfer.2010.03.017

DO - 10.1016/j.ijheatmasstransfer.2010.03.017

M3 - 文章

AN - SCOPUS:77953293937

SN - 0017-9310

VL - 53

SP - 3102

EP - 3110

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 15-16

ER -

Numerical investigation of gas-to-particle cluster convective heat transfer in circulating fluidized beds

Abstract

Keywords

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