EVALUATION OF SOME ENGINEERING PROPERTIES OF WATERMELON SEED RELEVANT TO THE DESIGN OF PROCESSING EQUIPMENT

Adekanye, T. A. (2014) EVALUATION OF SOME ENGINEERING PROPERTIES OF WATERMELON SEED RELEVANT TO THE DESIGN OF PROCESSING EQUIPMENT. Advances in Agriculture, Sciences and Engineering Research, 4 (7). pp. 1667-1686. ISSN 2276 – 6723

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Abstract

Some physical and mechanical properties of watermelon seeds were investigated in this study. Size, surface area and seeds were characterized using established procedure. The volume, mass and density of the seeds were determined using water displacement method. The static coefficient of friction of water melon seeds were determined with reference to three different structural surfaces; plywood, glass and galvanized metal sheet. The compression test was carried out to determine the load, energy and deformation at peak and yield of major and intermediate axis of watermelon seed. The result of the experiment on size shows that watermelon seed has a wide range of size distribution. The surface area and the shape also depend on varieties. The angle of repose ranges from 180 to 260 at storage moisture content. The static coefficient of friction depends on the type of structural surface involved. The sphericity of the black, brown and white – black varieties was 0.483, 0.535 and 0.489 while the roundness of black, brown and white – black varieties was 0.776, 0.639 and 0.856. The density of watermelon seed was lower than the density of water. The densities of black, brown and white – black varieties were 0.932, 0.935 and 0.928 at storage moisture level.

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