Journal of Biosystems Engineering
- Volume 20 Issue 4
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- Pages.351-359
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- 1995
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- 1738-1266(pISSN)
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- 2234-1862(eISSN)
Resistance to Air Flow through Packed Fruits and Vegetables in Vented Box
상자포장 청과물의 송풍저항 특성
Abstract
In pressure cooling system, produce were packed in vented box and cooled rapidly by producing a difference in air pressure on opposite faces of stacks of vented box. So, energy requirements and performance of pressure cooling system depended upon the air flow rate and the static pressure drop through packed produce in vented box. The static pressure drop across packed produce in vented box normally depended upon air flow rate, vent area of box and conditions of produce bed (depth, porosity, stacking patterns, size and shape of products) in box. The objectives of this study were to investigate the effect of vent area and air flow rate on airflow resistance of empty box and packed produce in vented box, and to investigate the relationship between the air flow resistance of packed products in vented box and sum of air flow resistance of empty box only and products in bulk only. Mandarins and tomatoes were used in the experiment. The airflow rate were in the range of 0.02~1.0