Design, Development and Evaluation of a Tangential-flow PaddyThresher: A Response Surface Analysis

Olayanju, T.M.A. and Okonkwo, Clinton E. and Ojediran, J. O. and Alake, S. A. and Alhassan, Elijah A. and Okunola, Abiodun A. (2019) Design, Development and Evaluation of a Tangential-flow PaddyThresher: A Response Surface Analysis. Asian Journal of Scientific Research. pp. 1-10. ISSN 1992-1454

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Abstract

Traditional paddy threshing is still usually carried out by women and children in the rural village. The aimof this study was to design and develop a tangential thresher, optimize the conditions necessary for threshing paddy using a responsesurface modeling methodology. Materials and Methods: Paddy straw (Faro 44 variety) was used for this study. Moisture contents at threelevels between 14.50 and 25.10% and threshing drum speed between 398 and 565 rpm. The response surface of desirability function wasused for the numerical optimization. Results: Some of the performance efficiencies (cleaning efficiency, threshing recovery, threshingefficiency, percentage loss and percentage blown grain) which was evaluated were significantly (p<0.05) affected by moisture contentand threshing drum speed. Conclusion: The effects of the moisture content, threshing drum speed and its optimization were regardedas very useful to ascertain the performance efficiency of the developed tangential flow threshing machine.

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