Simulation of three-dimensional infrared drying using a set of three-coupled equations by the control volume method

被引：0
|
作者：
Ranjan, Rakesh [1 ]
Irudayaraj, Joseph [1 ,2 ]
Jun, Soojin [1 ]
机构：
[1] Dept. of Agric./Biol. Engineering, Pennsylvania State University, University Park, PA, United States
[2] Dept. of Agric./Biol. Engineering, Pennsylvania State University, 227 Agricultural Eng. Building, University Park, PA 16802, United States
来源：
Transactions of the American Society of Agricultural Engineers | 2002年 / 45卷 / 05期
关键词：
Computer simulation - Food additives - Grain (agricultural product) - Heating - Moisture;
D O I：
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中图分类号：
学科分类号：
摘要：
A control volume formulation for the solution of a set of three-way coupled heat, moisture transfer, and pressure equations with an infrared source term is presented in three dimensions. The solution procedure developed uses a fully implicit time-stepping scheme to simulate the drying of potato during infrared heating in three-dimensional Cartesian coordinates. Comparison was made between the simulation results of the three-way coupled equations with the two-way coupled set of equations and the experimental results from two different infrared heating systems constructed for this purpose. Simulation indicated that the three-way coupled model predicted the temperature and moisture contents better than the two-way coupled heat and mass transfer model. High-moisture regions in the three-dimensional discretized space were also identified. The maximum deviations between experimental and simulation results were 8.0° C in temperature for potato drying and 10% (d.b.) for moisture predictions. The overall predictions agree well with the available experimental data and show a good potential for application in grain and food drying.
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页码：1661 / 1668
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