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COMPRESSIBILITY AND PHYSICAL PROPERTIES OF PEANUT HULL GRINDS

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2007 ASAE Annual Meeting  076162.(doi:10.13031/2013.23341)
Authors:   Oladiran O Fasina
Keywords:   Density, porosity, hausner ratio
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Peanut hull is a byproduct waste from processing of peanuts and is a potential biofuel feedstock in the Southeastern part of United States. The value-added utilization of this waste product however requires that the product be stored and handled several times. This project investigates the effect of moisture content on the some of the properties that are important to the design of storage, handling and processing equipment and facilities for biomass feedstocks. It was found that the bulk density, particle density, porosity and Hausner ratio of ground peanut hulls (through 1/16" screen) were significantly affected (P<0.05) by moisture content (5.8% to 19.2% w.b.). Mechanical compressibility (1.5 to 15 kPa normal applied pressure), vibrational compressibility and Hausner ratio of the grinds increased linearly with moisture.

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