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HEAT AND MASS TRANSFER DURING CONTACT DRYING OF A SHEET OF MOIST MATERIAL

ABSTRACT
Proposed is a model for heat and mass transfer during drying of a sheet of moist material placed on the heating surface of certain temperature while over the opposite free surface of the sheet the air of defined parameters is blown. All thermophysical and transport properties of the dried material are considered to be fully dependent on temperature and moisture content. The model is solved numerically by use of finite difference explicit numerical scheme. The results of temperature and moisture distributions inside the layer of the material obtained by the model with variable coefficients are compared, for the same values of process parameters, to the results obtained through simultaneous solving of the similar mathematical model with constant thermophysical coefficients in governing equations, as well as with the results acquired experimentally.
PAPER SUBMITTED: 1999-06-10
PAPER REVISED: 1999-07-30
PAPER ACCEPTED: 2000-03-03
PUBLISHED ONLINE: 2020-09-06
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 1999, VOLUME 3, ISSUE Issue 1, PAGES [57 - 70]
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© 2022 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence