Moisture Changes in Grain During Aeration Under Warm Humid Conditions
作者:
B. Kanujoso,
D.S. Chung,
A. Song,
L.E. Erickson,
期刊:
Drying Technology
(Taylor Available online 1995)
卷期:
Volume 13,
issue 1-2
页码: 197-214
ISSN:0737-3937
年代: 1995
DOI:10.1080/07373939508916949
出版商: Taylor & Francis Group
关键词: adsorption;desorption;drying;heat transfer;mathematical model;rough rice;simulation
数据来源: Taylor
摘要:
Two mathematical models (an equilibrium model and a combined model) were evaluated, which described the moisture and heat transfer in low temperature drying and aeration. The predicted moisture contents from both models were compared with the experimental data. Comparisons indicated that the combined model was more accurate than the equilibrium model. The combined model is based on the idea that the partial pressure difference is the driving force in moisture transfer. A series of simulation was performed using the combined model to evaluate the effect of air temperature, air relative humidity, and the temperature difference between grain and air on the moisture changes in stored rough rice. The simulation results proved the concept of using the partial pressure difference to describe the moisture transfer in stored grain. A minimum of 5.6°C in
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