Interfacial suction effects of a porous layer on filmwise condensation heat transfer enhancement

被引：1

作者：

Ma, Xue-Hu ^{[1
]}

Chen, Jia-Bin ^{[1
]}

Wang, Bu-Xuan ^{[2
]}

机构：

[1] Institute of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116012, China

[2] Thermal Engineering Department, Tsinghua University, Beijing 100084, China

来源：

Heat Transfer - Asian Research | 2002年 / 31卷 / 07期

关键词：

Condensation - Heat resistance - Mechanical permeability - Porous materials - Thermal conductivity;

D O I：

10.1002/htj.10058

中图分类号：

学科分类号：

摘要：

Considering the liquid transverse suction effect at the porous layer interface, a mathematical model was presented to investigate the influence of the porous layer characteristic parameters on condensation heat transfer. The results revealed that the enhancement ratio increased with the increase of the porous layer thickness and permeability. The effective thermal conductivity of the porous layer was, however, of little significance for condensation heat transfer enhancement. Also, the enhancement mechanism was analyzed by comparing the thermal resistances within the external condensate film and the porous layer. © 2002 Wiley Periodicals, Inc.

引用

页码：568 / 577

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