Wind-Augmented Heat Transfer in an Open Thermosyphon Tube With Large Length-Diameter Ratios

[+] Author and Article Information
G. S. H. Lock, J. D. Kirchner

Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada

J. Heat Transfer 112(1), 71-77 (Feb 01, 1990) (7 pages) doi:10.1115/1.2910367 History: Received December 21, 1987; Revised November 29, 1988; Online May 23, 2008


The paper reports an experimental study of the open thermosyphon tube when its heat transfer performance is augmented by the prevailing wind flowing down the inside of an insert tube concentric with the thermosyphon tube. Data are presented for the large length-diameter ratios characteristic of geotechnical applications. A flow model is developed and used to interpret these and other results. Comparisons are made with the performance of liquid-filled thermosyphons.

Copyright © 1990 by The American Society of Mechanical Engineers
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