Combined natural convection heat and mass transfer from vertical fin array

Giri, A and Narasimham, GSVL and Krishna Murthy, MV (2003) Combined natural convection heat and mass transfer from vertical fin array. In: International Journal of Heat and Fluid Flow, 24 (1). pp. 100-113.

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Abstract

Natural convection transport processes play an important role in many applications like ice-storage air-conditioning. A mathematical formulation of natural convection heat and mass transfer over a shrouded vertical fin array is developed. The base plate is maintained at a temperature below the dew point of the surrounding moist air. Hence there occurs condensation of moisture on the base plate, while the fins may be partially or fully wet. A numerical study is performed by varying the parameters of the problem. The local and average Nusselt numbers decrease in streamwise direction and tend to approach fully developed values for sufficiently large values of the fin length. The results show that beyond a certain streamwise distance, further fin length does not improve the sensible and latent heat transfer performance, and that if dry fin analysis is used under moisture condensation conditions, the overall heat transfer will be underestimated by about 50% even at low buoyancy ratios.

Item Type:	Journal Article
Publication:	International Journal of Heat and Fluid Flow
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science
Keywords:	Natural convection; Heat and mass transfer; Vertical fin array
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	28 May 2009 10:25
Last Modified:	19 Sep 2010 04:53
URI:	http://eprints.iisc.ac.in/id/eprint/16664

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