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RESEARCH PAPERS

Transient Temperature Distributions Within Porous Slabs Subjected to Sudden Transpiration Heating

[+] Author and Article Information
D. M. Burch, R. W. Allen, B. A. Peavy

Department of Mechanical Engineering, University of Maryland, College Park, Md.

J. Heat Transfer 98(2), 221-225 (May 01, 1976) (5 pages) doi:10.1115/1.3450522 History: Received September 02, 1975; Online August 11, 2010

Abstract

This paper investigates the transient temperature distribution within packed beds after being subjected to single blow heating. Numerical solutions are derived for the fluid and solid temperatures that include the effect of forced convection heat transfer at the fluid-exit surface. An inlet-face heat transfer coefficient is specified that includes both the effect of small scale inlet-face convective heat transfer and heat conduction in the oncoming transpirant. The boundary conditions do not require fluid or solid temperatures to be specified at the bounding surfaces. Charts are presented for predicting the response times for packed bed heat exchangers and chemical reactors covering a wide range of parameters.

Copyright © 1976 by ASME
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