Development and Evaluation of Small Size Engine Driven Rice Thresher

Tamiru Dibaba¹

Section:Research Paper, Product Type: Journal-Paper
Vol.8 , Issue.1 , pp.36-41, Mar-2021

Online published on Mar 31, 2021

Copyright © Tamiru Dibaba . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The postharvest losses is the major problem in developing countries like Ethiopia. This losses occurred at different stage such as during harvesting, threshing and transporting. Therefore, to minimize these losses different machines are required out of which the rice threshing machine is necessary in the country. The performance parameter of the machine such as: maximum threshing capacity 449.84kg/hr., maximum threshing efficiency 99.9%, and maximum cleaning efficiency 99.84% was very much acceptable. But, the maximum percentage damage 10.51% and maximum scatter loss 6.07% was recorded at maximum speed 1139rpm. Therefore to minimize this values, some adjustment on the machine should be done before release to the farmer or minimize the speed of the machine to medium which means 980rpm.

Key-Words / Index Term :
rice, threshing capacity, threshing efficiency, cleaning efficiency

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