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RESEARCH PAPERS

Analysis of Laminar Heat Transfer in Internally Finned Tubes with Uniform Outside Wall Temperature

[+] Author and Article Information
H. M. Soliman, T. S. Chau, A. C. Trupp

Department of Mechanical Engineering, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2

J. Heat Transfer 102(4), 598-604 (Nov 01, 1980) (7 pages) doi:10.1115/1.3244358 History: Received December 19, 1979; Online October 20, 2009

Abstract

An analysis is presented for fully developed laminar convective heat transfer in tubes with internal longitudinal fins and uniform outside wall temperature. The governing momentum and energy equations were solved numerically, with the influence of fin conductance accounted for by a single parameter. The distributions of fin temperature, fluid temperature and local heat flux (both at the fin and unfinned surfaces) are presented. These are shown to be strongly dependent on finned tube geometry and, in some cases, on the fin conductance parameter as well. Based on average heat transfer per unit area, the various fins proved more effective than the unfinned surfaces. Values for overall Nusselt number indicated significant heat transfer enhancement over smooth tube conditions.

Copyright © 1980 by ASME
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