Some physical properties of groundnut grains.

Abstract

Investigation of physical and mechanical properties of groundnut is essential for design of equipment for harvesting, processing, transportation, cleaning, sorting, separation and packaging. In this research some physical properties of groundnut grains were evaluated such as axial dimensions, geometric mean diameter, thousand grain mass, true and bulk density and grain volume at moisture content 7.6% dry basis. The sphericity, aspect ratio, surface area and porosity were 0.69, 56%, 120.82mm2, 36.4% respectively. Static coefficient of friction for glass, plywood, galvanized steel and concrete structural surfaces were 0.11, 0.13, 0.14 and 0.16, respectively and angle of repose 28°.