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Journal of Agricultural Science and Technology، جلد ۱۵، شماره ۳، صفحات ۴۶۷-۴۷۷
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عنوان انگلیسی Optimization of Independent Parameters for Chickpea Threshing Using Response Surface Method (RSM)
چکیده انگلیسی مقاله Kermanshah province is the main producer of various chickpea cultivars in Iran. In this study a laboratory peg-tooth thresher was employed for chickpea threshing. The effect of cylinder speed (9, 12, 15 m/s), concave clearance (12, 14, 16 mm), feed rate (80, 160, 240 kg/h) and material moisture content (5, 10, 15% w.b.) was studied on percentage of grain damage, threshing efficiency and percentage of seed germination. The experimental plan for optimization was prepared with response surface methodology technique with composite experiment design. The effects of all independent variables on the response variables were significant. The effect of cylinder speed was the most significant and followed by the moisture content. With increasing cylinder speed in the range of 9 to 15 m/s, the grain damage increased from 4.98 to 47.97%, threshing efficiency increased from 96.81 to 99.69% and seed germination decreased from 85.75 to 55.98%. With increasing moisture content, grain damage and threshing efficiency decreased but seed germination increased. With increasing feed rate and concave clearance, grain damage and threshing efficiency decreased while, seed germination increased. The optimized point was determined at the cylinder speed of 10.63 m/s, concave clearance of 13.74 mm, feed rate of 240 kg/h and moisture content of 12% (w.b.). In this condition, the optimum values of grain damage, threshing efficiency and seed germination were 3%, 98.3% and 84.29%, respectively.
کلیدواژه‌های انگلیسی مقاله Germination,grain damage,threshing efficiency,thresher,RSM
نویسندگان مقاله k سالاری |
department of agricultural machinery engineering, faculty of agriculture, bu-ali sina university, p. o. box 6517833131, hamedan, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه بوعلی سینا (Bu ali sina university)

r امیری چایجان | amiri chayjan
department of agricultural machinery engineering, faculty of agriculture, bu-ali sina university, p. o. box 6517833131, hamedan, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه بوعلی سینا (Bu ali sina university)

j خزایی |
department of agricultural technical engineering, college of abouraihan, university of tehran, tehran, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

j امیری پریان | amiri parian
department of agricultural machinery engineering, faculty of agriculture, bu-ali sina university, p. o. box 6517833131, hamedan, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه بوعلی سینا (Bu ali sina university)

نشانی اینترنتی http://jast.modares.ac.ir/article_4982_e079cb1e3b1e052b995c5a51d14cf0cb.pdf
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