Physical and mechanical characteristics of grain and seeds

Bozhidar Kolev and Miroslav Mihaylov
University of Ruse “Angel Kanchev”, 7017 Ruse, Bulgaria


Kolev, B. & Mihaylov, M. (2024). Physical and mechanical characteristics of grain and seeds. Bulg. J. Agric. Sci., 30(1), 96–100

When designing and manufacturing machines and installations for processing, transporting and storing grain and seeds, it is necessary to know some of their basic physical and mechanical characteristics. They are also necessary for the correct selection of the operating modes of the facilities in the grain warehouses.
In this paper, an engineering and technical classification of the mass-grown cereals, legumes and oilseed crops in Bulgaria is presented. For the most used varieties and hybrids, density of grains (seeds), hectoliter mass, angle of natural slope, and angle of friction on smooth materials are determined.

Keywords: grain; seeds; shape; dimensions; roughness; density; hectoliter mass; angle of natural slope; friction

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