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RESEARCH PAPERS

Dryout Heat Fluxes in Particulate Beds Heated Through the Base

[+] Author and Article Information
S. W. Jones, D. R. Pedersen

Reactor Analysis and Safety Division, Argonne National Laboratory, Argonne, Ill. 60439

M. Epstein

Fauske and Associates, Inc., Encino, Calif. 91316

S. G. Bankoff

Chemical Engineering Department, Northwestern University, Evanston, Ill. 60521

J. Heat Transfer 106(1), 176-183 (Feb 01, 1984) (8 pages) doi:10.1115/1.3246631 History: Received December 09, 1982; Online October 20, 2009

Abstract

A laboratory study of dryout heat fluxes in particulate beds heated through the base is reported. More than two hundred experimental heat flux data points were measured. Semi-empirical correlations of the dryout heat flux data for both deep and shallow particulate beds are developed, based on flooding in countercurrent flow in deep beds and a boiling crises in shallow beds. The role of capillary forces in bed dryout is discussed and an explanation for the variation of dryout heat flux with bed height in volumetrically heated particulate beds is presented.

Copyright © 1984 by ASME
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