Primena uređaja za određivanje mehaničkih osobina zrna

Abstract

Physical and mechanical properties of food crops gain importance during design of threshing and shilling machine. In Egypt, Corn is emerging as the third most important crop after rice and wheat, and it has significance as a source of a large number of industrial products besides its use as human food and animal feed. Corn is the Third largest cereal produced in the world with a trend of rising production in Egypt. The normal area for Corn in Egypt was hectares with production about tones in the year 2016. Four method of Corn shelling namely shelling cob grain by hand, octagonal Corn Sheller, hand operated Corn Sheller and beating by stick method were carried for removing Corn kernel from the cob. As well as, the determination of mechanical properties go to improve and optimize of separation and cleaning machine. The current study, some physical and mechanical properties of corn seeds were determined such as the average length, width, thickness and arithmetic diameter. In the moisture 8.5 and 16.7 % d.b., the results showed that, the thousand seed mass increased from. The rupture force value ranged from 141.2 to 431.6 N for corn type TWC370 dent and SC white flint at 8.5 % moisture content respectively. The rupture force value ranged from 182.3 to 529.8 N for corn type TWC370 dent and SC white flint at 16.7 % moisture content respectively. Also, the rupture energy value ranged from 279.5 to 1093.8 J for corn type TWC370 dent and SC white flint at 8.5 % moisture content respectively. The rupture energy value ranged from 369.3 to 1189.8 J for corn type TWC370 dent and SC white flint at 16.7 % moisture content respectively. But there was no regular trend for rupture force on the grains width section with increasing the moisture content.