An Experimental Study of Transition and Film Boiling Heat Transfer in Liquid-Saturated Porous Bed

[+] Author and Article Information
S. Fukusako, T. Komoriya, N. Seki

Department of Mechanical Engineering, Hokkaido University, Sapporo 060, Japan

J. Heat Transfer 108(1), 117-124 (Feb 01, 1986) (8 pages) doi:10.1115/1.3246875 History: Received February 01, 1984; Online October 20, 2009


Experimental investigations of transition and film boiling in a liquid-saturated porous bed are reported. The porous bed contained in a vertical circular cylinder is made up of packed spherical beads whose diameters range from 1.0 to 16.5 mm, while the depth of the bed overlying the heating surface varies from 10 to 300 mm. Water and fluorocarbon refrigerants R-11 and R-113 are adopted as testing liquids. Special attention is focused on the effect of the diameter of spherical beads on boiling heat transfer in the transition boiling region. It is found that for the small bead diameters the steady boiling heat transfer rises monotonically with temperature from nucleate boiling through the film boiling region, without going through a local maximum.

Copyright © 1986 by ASME
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