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TECHNICAL BRIEFS

Enhanced Cooling via Boiling in Porous Layers: The Effect of Vapor Channels

[+] Author and Article Information
A. K. Stubos

NCSR Demokritos, 15310 Ag. Paraskevi Attikis, Greece

J.-M. Buchlin

von Karman Institute, Ch. de Waterloo 72, 1640 Rhode-St.-Genese, belgium

J. Heat Transfer 121(1), 205-210 (Feb 01, 1999) (6 pages) doi:10.1115/1.2825946 History: Received March 12, 1998; Revised September 11, 1998; Online December 05, 2007

Abstract

Enhanced heat transfer via boiling in a porous layer covering the heated surface is considered analytically. The effect of vapor channels traversing the porous layer on the power for which a vapor film on the heated surface occurs, is examined by comparing the heat removal capability of the system with and without channels. A significant increase of the attained coolability level is obtained theoretically leading to the possibility of new design configurations for the cooling of intensely heated surfaces.

Copyright © 1999 by The American Society of Mechanical Engineers
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