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RESEARCH PAPERS

Flow in a Toroidal Thermosyphon with Angular Displacement of Heated and Cooled Sections

[+] Author and Article Information
P. S. Damerell

MPR Associates, Inc., Washington, D. C.

R. J. Schoenhals

Purdue University, West Lafayette, Ind.

J. Heat Transfer 101(4), 672-676 (Nov 01, 1979) (5 pages) doi:10.1115/1.3451055 History: Received July 28, 1979; Online August 11, 2010

Abstract

A toroidal thermosyphon consisting of a fluid-filled torus located in a vertical plane was studied analytically and experimentally. Good agreement was obtained between analytical predictions and measurements for large values of the angular displacement of the heated and cooled sections. For smaller angular displacements, the analytical predictions of steady state flow rates were found to exceed the corresponding experimentally observed values. The discrepancies were attributed to a reverse flow phenomenon. Some analytically predicted flows were not physically achievable. In these situations the flow would either reach a steady condition in the opposite direction, or it would oscillate indefinitely.

Copyright © 1979 by ASME
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