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

✍ Scribed by Xue-Hu Ma; Jia-Bin Chen; Bu-Xuan Wang

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
480 KB
Volume
31
Category
Article
ISSN
1099-2871

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✦ Synopsis

Abstract

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. Β© 2002 Wiley Periodicals, Inc. Heat Trans Asian Res, 31(7): 568–577, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.10058

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