Modelling and Simulation of Momentum, Heat, and Mass Transfer in a Deep-Bed Grain Dryer

Sitompul, J.P. and Istadi, I. and Sumardiono, S. (2003) Modelling and Simulation of Momentum, Heat, and Mass Transfer in a Deep-Bed Grain Dryer. DRYING TECHNOLOGY, 21 (2). pp. 217-229.

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Abstract

This article concerns the modelling and simulation of a deep-bed grain dryer in a large diameter-column. Two-dimensional (2D) models of deep-bed grain dryers were built by considering simultaneously momentum, heat, and mass transfer in the drying phase together with coupled heat and mass balance in the grain phase. The dynamic equations are solved numerically by using finite difference method. The momentum equations are applied to simulate pressure drop and velocity field of the drying air across the bed. The mass and heat balance in the two phases determine the profile of temperature and moisture content in both phases. Further, drying rate curves for various temperature of inlet drying gas together with moisture content of grain were simulated. The simulated profiles are in close agreement with experimental data.

Item Type:Article
Subjects:S Agriculture > S Agriculture (General)
T Technology > TP Chemical technology
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:Faculty of Engineering > Department of Chemical Engineering
Faculty of Engineering > Department of Chemical Engineering
ID Code:139
Deposited By:Dr. Istadi I.
Deposited On:06 May 2009 09:16
Last Modified:06 May 2009 09:16

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