Transient Heat Transfer in a Conducting Particle With Internal Radiant Absorption

[+] Author and Article Information
A. Tuntomo, C. L. Tien

Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Heat Transfer 114(2), 304-309 (May 01, 1992) (6 pages) doi:10.1115/1.2911276 History: Received August 13, 1990; Revised April 01, 1991; Online May 23, 2008


The objective of the present work is to analyze rigorously the transient heat transfer of an irradiated particle by treating the radiant absorption on a local basis. A new conduction-to-radiation parameter is introduced to characterize the relative importance of heat transfer by conduction as compared with that by radiation. The study on the transient temperature field as a function of conduction-to-radiation parameter establishes a criterion identifying the circumstances where heat transfer by radiation is so predominant that conduction is negligible. The current effort is also directed at developing a convenient method for predicting the transient local maximum temperature and explosion time delay of an intensely irradiated liquid droplet.

Copyright © 1992 by The American Society of Mechanical Engineers
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