THERMAL SCIENCE

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Milan B. Stakić

NUMERICAL SIMULATION OF REAL MATERIALS CONVECTIVE DRYING IN FIXED BED

ABSTRACT
Mathematical model describing unsteady one-dimensional heat and mass transfer between gas phase and dried material during convective drying process in fixed bed as well as the results of numerical simulation obtained on the basis of mentioned model for the case of real materials are shown in this paper. Heat and mass transfer between gas phase and material surface are calculated using well known expressions for the case of a fixed bed (available in the literature). Drying process inside dried material (internal moisture transport) is calculated using an original technique based on the modified Luikov drying theory. A control volume numerical method is used for discretization of a system of the coupled partial differential equations, while the obtained linearized system of algebraic equations is solved by means of TDMA (TriDiagonal-Matrix Algorithm). Results of numerical simulation are compared with the available corresponding experimental data. The mathematical model is successfully verified.
PAPER SUBMITTED: 1997-12-07
PAPER REVISED: 1998-04-24
PAPER ACCEPTED: 1998-05-13
PUBLISHED ONLINE: 2020-11-07
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THERMAL SCIENCE YEAR 1997, VOLUME 1, ISSUE Issue 2, PAGES [59 - 70]
REFERENCES
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  10. Stakić, M., Milojević, D., Stefanović, M., Experimental Investigation and Numerical Simulation of Powdery and Fine-Grained Materials Drying Processes in a Fluidized Bed, Thermal Science, 21 (1995), 4, pp. 295-316
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NUMERICAL SIMULATION OF REAL MATERIALS CONVECTIVE DRYING IN FIXED BED

© 2024 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