كليدواژه :
Harvesting machines , كشاورزي , سرعت حد , حبوبات , انتقال نيوماتيكي , خواص آيروديناميكي , سيستم هاي بوجاري , نخود , كمباين , ماشين هاي برداشت , Terminal velocity , Aerodynamic characteristics , chickpea , Pneumatic , separation systems , Pneumatic conveying
چكيده لاتين :
Terminal velocity of chickpea is one of the important parameters in the pneumatic separation and conveying systems and is used extensively in design of agricultural machinery and process engineering. Based on dimension, eight samples of chickpea were chosen and then at three different moisture level the experiment was done. For each replication, four readings near the location of test at four points along the diameter were measured and then the average air velocity at this plane was calculated. The experiment was repeated eight times. There are some completely randomized design with factorial experiment in this study. Geometric mean diameter (gmd) and specific gravify (spg) of dry and moist chickpea were measured in each replication and then the effect of dimension and moisture content on the terminal velocity, gmd and spg of chickpea were investigated. Finally, the results are shown based on the regression analysis with the related equations and tables.
