Heat Transfer From a Horizontal Plate Facing Upward to Superposed Liquid-Layers With Change of Phase

[+] Author and Article Information
Y. Shimada, Y. H. Mori, K. Komotori

Department of Mechanical Engineering, Keio University, Yokohama, Japan

J. Heat Transfer 99(4), 568-573 (Nov 01, 1977) (6 pages) doi:10.1115/1.3450743 History: Online August 11, 2010


This paper presents an experimental examination of a novel technique to improve the convection heat transfer to a liquid whose boiling point is higher than the temperature of heated surface. A layer of an immiscible, denser, and more volatile “secondary liquid” is placed between the heated surface and the layer of the “primary liquid” which is to be heated. The secondary-liquid boils on the heated surface, and its vapor condenses in the upper primary-liquid layer. The rate of such a heat transfer exceeds by far that of natural convection heat transfer to the single primary-liquid layer with an increase of the surface temperature, and becomes approximately equal to that of boiling heat transfer to the single secondary-liquid layer.

Copyright © 1977 by ASME
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