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Research Papers

A Photographic Study of Boiling in the Absence of Gravity

[+] Author and Article Information
R. Siegel, C. Usiskin

NASA Lewis Research Center, Cleveland, Ohio

J. Heat Transfer 81(3), 230-236 (Aug 01, 1959) (7 pages) doi:10.1115/1.4008192 History: Received February 03, 1959; Published August 01, 1959; Online February 19, 2019

Abstract

A photographic study was made to determine the qualitative effect of zero gravity on the mechanism of boiling heat transfer. The experimental equipment included a container for boiling water and a high-speed motion-picture camera. To eliminate the influence of gravity, these were mounted on a platform which was allowed to fall freely approximately 8 ft. During the free fall, photographs were taken of boiling from various surface configurations such as electrically heated horizontal and vertical ribbons. The heat flux was varied to produce conditions from moderate nucleate boiling to burnout. The results indicate that gravity plays a considerable role in the boiling process, especially in connection with the motion of vapor within the liquid.

Copyright © 1959 by ASME
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