Theoretical analysis on heat transfer in porous metal foam heat exchanger

被引：0
|
作者：
Cheng W. [1 ]
Han F. [1 ]
Wei W. [1 ]
机构：
[1] Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, Anhui
来源：
Huagong Xuebao/CIESC Journal | 2011年 / 62卷 / 10期
关键词：
Forced convection; Porous metal foam; Thermal resistance;
D O I：
10.3969/j.issn.0438-1157.2011.10.007
中图分类号：
学科分类号：
摘要：
Porous metal foam presents excellent heat transfer performance in forced convection, because it has large specific surface area and good thermal conductivity. A mathematical model of heat transfer in porous metal foam under forced convection conditions was built, and the effects of the porous metal foam height, pore density, porosity, and air velocity on the heat transfer performance were investigated. The analysis results show that the heat transfer increases with the increase of porous metal foam height, pore density, air velocity, decreases as the porosity increases. While any one of the four parameters approaches to some values, the heat transfer of the porous metal foam becomes unchanged. The study can provide guidance for the application of the porous metal foam heat transfer and the cost in applications. © All Rights Reserved.
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页码：2721 / 2725
页数：4
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