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TECHNICAL BRIEFS

Simplified and Accurate Mathematical Model for the Analysis of Heat and Moisture Transfer From Food Commodities

[+] Author and Article Information
F. A. Ansari

Mechanical Engineering Department, A. M. U., Aligarh—202 002, India

J. Heat Transfer 120(2), 530-533 (May 01, 1998) (4 pages) doi:10.1115/1.2824285 History: Received August 06, 1997; Revised October 20, 1997; Online December 05, 2007

Abstract

The present paper deals with a simple and accurate mathematical model for making reliable heat and mass transfer analyses from high-water–content solids when exposed to a cold air stream. Such physical situations are encountered in the refrigeration industry during air blast cooling of food commodities. The concept of enthalpy potential has been used to develop a simple linear surface boundary condition equation. This equation accounts for the cooling effect due to sensible convective heat transfer as well as the latent cooling effect due to produce desiccation. Investigations on ten fresh samples each of ripe tomato and cucumber established that there is a good agreement between the computed temperatures from the proposed model and the experimentally measured values.

Copyright © 1998 by The American Society of Mechanical Engineers
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