RESEARCH PAPERS: Natural and Mixed Convection

Effect of Surface Radiation and Partition Resistance on Natural Convection Heat Transfer in a Partitioned Enclosure: An Experimental Study

[+] Author and Article Information
N. Ramesh, S. P. Venkateshan

Department of Mechanical Engineering, Indian Institute of Technology, Madras 600 036, India

J. Heat Transfer 121(3), 616-622 (Aug 01, 1999) (7 pages) doi:10.1115/1.2826024 History: Received October 01, 1998; Revised March 19, 1999; Online December 05, 2007


The heat transfer across an air-filled partitioned square enclosure is studied experimentally using a differential interferometer. The partition was located centrally inside the enclosure, parallel to the two isothermal differentially heated vertical walls, and extended the full height of the enclosure. The top and bottom horizontal walls of the enclosure were maintained adiabatic. A parametric study has been carried out using different partitions, focusing attention on the effect of partition thermal resistance as well as the interaction of surface radiation and natural convection, and on the total heat transfer between the vertical walls, inside the enclosure. Correlations, valid for the laminar range, are proposed.

Copyright © 1999 by The American Society of Mechanical Engineers
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