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RESEARCH PAPERS: Natural Convection

Natural Convection in the Inclined, Cranked Thermosyphon

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

Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2G8

J. Heat Transfer 115(1), 166-172 (Feb 01, 1993) (7 pages) doi:10.1115/1.2910643 History: Received January 13, 1992; Revised June 19, 1992; Online May 23, 2008

Abstract

Consideration is given to natural convection in a cranked, tubular thermosyphon oriented in various ways with respect to the vertical. Experiments on a small-bore, water-filled tube are used to investigate three orientational effects: by tilting in a vertical plane containing the tubes; by incremental rotation about the axis of the horizontal connecting tube; and by incremental rotation about a horizontal axis parallel to the thermosyphon tube axes. The results reveal similarities between the cranked and linear thermosyphons. In general, horizontal alignments are found to produce higher heat transfer rates.

Copyright © 1993 by The American Society of Mechanical Engineers
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