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vol. 4, nr. 1 (2004)
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Influence of bulk density of seeds on airflow resistance
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Józef Łukaszuk, Marek Molenda, Grzegorz Szwed
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Institute of Agrophysics, Polish Academy of Sciences, ul. Doświadczalna 4, 20-290 Lublin |
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vol. 4 (2004), nr. 1,
pp. 77-83
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abstract:
Airflow resistance through beddings of maize, wheat and rapeseeds was deter-mined. Influence of bulk density and seed size on the airflow resistance in a range of airflow velocity from 0.03 up to 0.3 m s-1 was examined. Ergun�s equation was applied to predict airflow resistance. Strong influence of material bulk density and seed size on porosity and airflow resistance was found. Ergun�s equation was shown to describe adequately the relationship under examination, and as such it could be utilized for the design and analysis of grain aeration systems.
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keywords:
granular material, porosity, airflow resistance
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original in:
Polish
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