Author(s) :

Yayock, E.S., Afolabi,A., Isiaka, M., Mohammed, U.S..

Volume/Issue :

Abstract :

Some design related physical properties of Samaru Sorghum 43 (SAMSORG 43) were determined as a function of moisture content, within the moisture range of 8.69 - 16.92 % (db) being the ranges for threshing, cleaning and storage of sorghum. The length, width, thickness and geometric mean diameter of the Samaru Sorghum 43, increased linearly from 4.81 to 5.11, 4.15 to 4.70, 2.90 to 3.49 and 3.89 to 4.34 mm, respectively as moisture content increases from 8.69 - 16.92 %. The sphericity, surface area, seed volume, thousand kernel mass and porosity also increased linearly from 83.98 to 87.87 %, 0.41 to 0.59 mm2, 0.32 to 0.47 mm3, 54.33 to 43.14 g and 18.98 to 22.40 %, respectively. Bulk density and true density decreased linearly with increase in moisture content from 1.11 to 0.97 and 1.37 to 1.25 g/cm3, respectively. The static angle of repose varied from 19.73 to 26.68 and 18.95 to 25.05 on plywood and galvanized steel surfaces.The coefficients of static friction of the sorghum increased the linearly against surfaces of three structural materials, namely, plywood (0.43 - 0.53), galvanized iron sheet (0.33 - 0.53) and plastic (0.35 - 0.41) as the moisture content increased from 8.69 to 16.92 %.

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