A numerical investigation of heat transfer mechanisms in gas-solid fluidized beds using the two-fluid granular temperature model

被引：7
|
作者：
Gomes, Jefferson L. M. A.
Pain, Christopher C.
De Oliveira, Cassiano R. E.
Goddard, Antony J. H.
Oliveira, Francisco B. S.
机构：
[1] Imperial Coll London, Dept Earth Sci & Engn, Computat Phys & Geophys Grp, London SW7 2AZ, England
[2] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
[3] Univ Estado Rio De Janeiro, Inst Politecn, Nova Friburgo, RJ, Brazil
来源：
HEAT TRANSFER ENGINEERING | 2007年 / 28卷 / 06期
关键词：
D O I：
10.1080/01457630701194011
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this work, the two-fluid granular temperature model is used to investigate the heat exchanged between a heated wall and a gas-solid fluidized bed. Numerical simulations were performed in 2-D and 3-D. uidized beds using a solid phase effective thermal conductivity correlation based on the granular temperature. The heat exchange in the bubbles' wake is investigated by tracking the train of bubbles that rises along the heated wall. Large heat transfer coef. cients were obtained in the rear wake region of bubbles due to relatively larger granular temperature there and intense particle circulation.
引用
收藏
页码：576 / 597
页数：22
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