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Heat and mass transfer in two-phase porous materials under intensive microwave heating

Dincov, Dusko and Parrott, Kevin A. and Pericleous, K.A. (2004) Heat and mass transfer in two-phase porous materials under intensive microwave heating. Journal of Food Engineering, 65 (3). pp. 403-412. ISSN 0260-8774

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Official URL: http://dx.doi.org/10.1016/j.jfoodeng.2004.02.011

Abstract

Computational results for the intensive microwave heating of porous materials are presented in this work. A multi-phase porous media model has been developed to predict the heating mechanism. Combined finite difference time-domain and finite volume methods were used to solve equations that describe the electromagnetic field and heat and mass transfer in porous media. The coupling between the two schemes is through a change in dielectric properties which were assumed to be dependent both on temperature and moisture content. The model was able to reflect the evolution of both temperature and moisture fields as well as energy penetration as the moisture in the porous medium evaporates. Moisture movement results from internal pressure gradients produced by the internal heating and phase change.

Item Type:Article
Uncontrolled Keywords:Microwave heating, Porous media, Two-phase flow, Maxwell's equations
Research Community:University of Westminster > Electronics and Computer Science, School of
ID Code:500
Deposited On:05 Dec 2005
Last Modified:20 Oct 2009 15:46

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