Effects of Gravity and Size Upon Film Boiling From Horizontal Cylinders

[+] Author and Article Information
J. H. Lienhard, Kauo-Hwa Sun

University of Kentucky, Lexington, Ky.

J. Heat Transfer 92(2), 292-298 (May 01, 1970) (7 pages) doi:10.1115/1.3449663 History: Received September 16, 1968; Revised June 09, 1969; Online August 11, 2010


The vapor removal mechanism during film boiling on horizontal cylinders has been observed over an 81-fold variation of gravity and a tenfold variation of radius. These measurements are the basis for an assessment of prior predictions of wavelength. A significant low-gravity transition point in the vapor removal mechanism is identified and explained. “Best” formulas are recommended for the prediction of the wavelength and the minimum heat flux. These depend upon a single parameter which represents both size and gravity.

Copyright © 1970 by ASME
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