Airflow resistance in soybean
 
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1
Department of Agricultural Process Engineering, Mahatama Phule Krishi Vidyapeeth, Rahuri Dist., Ahmednagar 413-722, India
2
Department of Agricultural Process Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola 444-104, India
 
Int. Agrophys. 2012, 26(2): 137–143
 
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ABSTRACT
Resistance of material to airflow is an important factor to consider in the design of a dryer or an aeration system. The airflow resistance of soybean was determined with the modified airflow resistance apparatus. It was found that pressure drop increased with increase in airflow rate, bulk density, bed depth and decreased with moisture content. Modified Shedd equation, Hukill and Ives equation and modified Ergun equation were examined for pressure drop prediction. Airflow resistance was accurately described by modified Shedd equation followed by Hukill and Ives equation and modified Ergun equation. The developed statistical model comprised of airflow rate, moisture content and bulk density could fit pressure drop data reasonably well.
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