MATHEMATICAL SIMULATION OF TEMPERATURE AND MOISTURE FIELDS WITHIN A GRAIN KERNEL DURING DRYING
- 1 July 2000
- journal article
- research article
- Published by Taylor & Francis in Drying Technology
- Vol. 18 (6), 1305-1325
- https://doi.org/10.1080/07373930008917778
Abstract
Non-linear partial differential equations are presented for two dimensional heat and mass transfer within a single grain kernel during drying. In this model, the moisture evaporation inside the kernel is considered. The moisture is assumed to diffuse to the outer boundary of the kernel in liquid form and evaporate on the surface of the kernel. The influence of temperature and moisture content on grain properties is also considered in the simulation. The Non-linear partial differential equations are solved using the finite element method and simulation data is verified on a thin layer dryer for wheat kernels. The comparison shows that the simulated results have a high accuracy with average relative error of about 5%. The results of the finite element analysis can be used for grain quality evaluation, drying simulation studies and stress analysis of grain kernel.Keywords
This publication has 14 references indexed in Scilit:
- SIMULATION OF THE HEAT AND MOISTURE TRANSFER PROCESS DURING DRYING IN DEEP GRAIN BEDSDrying Technology, 1997
- Deep-bed simulation of the cooling of stored grain with ambient air: a test bed for ventilation control strategiesJournal of Stored Products Research, 1997
- Low Temperature Moisture Transfer Characteristics of Barley: Thin-Layer Models and Equilibrium IsothermsJournal of Agricultural Engineering Research, 1994
- Finite element analysis of drying with application to cereal grainsJournal of Agricultural Engineering Research, 1992
- Modeling Simultaneous Heat and Mass Transfer in an Isotropic Sphere-A Finite Element ApproachTransactions of the ASAE, 1991
- Mathematical modelling and computer simulation of heat and mass transfer in agricultural grain drying: A reviewJournal of Agricultural Engineering Research, 1985
- DRYING GRANULAR POROUS MEDIA - THEORY AND EXPERIMENTDrying Technology, 1983
- Heat and mass transfer analysis of intra-kernel wheat drying and rewettingJournal of Agricultural Engineering Research, 1981
- Non-Equilibrium Thermodynamics Approach to Heat and Mass Transfer in Corn KernelsTransactions of the ASAE, 1981
- A numerical solution of two-dimensional problems involving heat and mass transferInternational Journal of Heat and Mass Transfer, 1976