Longitudinal Axial Flow Rice Thresher Performance Optimization Using the Taguchi Technique

Mohamed Anwer Abdeen, Abouelnadar Elsayed Salem and Guozhong Zhang
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Mohamed Anwer Abdeen: College of Engineering, Huazhong Agricultural University, Wuhan 430070, China
Abouelnadar Elsayed Salem: College of Engineering, Huazhong Agricultural University, Wuhan 430070, China
Guozhong Zhang: College of Engineering, Huazhong Agricultural University, Wuhan 430070, China

Agriculture, 2021, vol. 11, issue 2, 1-14

Abstract: Combine harvesters are widely used worldwide in harvesting many crops, and they have many functions that cover the entire harvesting process, such as cutting, threshing, separating, and cleaning. The threshing drum is the core working device of the combine harvester and plays an influential role in rice threshing efficiency, threshing power requirement, and seed loss. In this study, two structures of rice threshers (conical-shaped and cylindrical-shaped) were tested and evaluated for performance under different thresher rotating speeds of 1100, 1300, and 1500 rpm and different feeding rates of 0.8, 1.1, and 1.4 kg/s. The experiment was designed using the Taguchi method, and the obtained results were evaluated using the same technique. The thresher structure and operating parameters were assessed and optimized with reference to threshing efficiency, required power, and productivity. The obtained results revealed that increasing thresher rotating speed and the feeding rate positively related to threshing efficiency, power, and productivity. The highest efficiency of 98% and the maximum productivity of 0.64 kg/s were obtained using the conical-shaped thresher under a 1500 rpm rotating speed and a feed rate of 1.4 kg/s, whereas the minimum required power of 5.45 kW was obtained using the conical thresher under a rotating speed of 1100 rpm and a feed rate of 0.8 kg/s.

Keywords: rice threshing; rice combine; longitudinal axial flow thresher; Taguchi method (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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