Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking Machine

In this study, a three rollers Acha-dehusking machine was designed, constructed and tested. The machine has the following units - feeding, processing and separating unit. The materials used for the fabrication were selected locally based on the design considerations and design analysis of the machin...

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Main Authors: R. M. Idris, D. S. Yawas, A. M. Abdulrahman
Format: Article
Language:English
Published: University of Maiduguri 2018-06-01
Series:Arid Zone Journal of Engineering, Technology and Environment
Online Access:http://azojete.com.ng/index.php/azojete/article/view/402
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author R. M. Idris
D. S. Yawas
A. M. Abdulrahman
author_facet R. M. Idris
D. S. Yawas
A. M. Abdulrahman
author_sort R. M. Idris
collection DOAJ
description In this study, a three rollers Acha-dehusking machine was designed, constructed and tested. The machine has the following units - feeding, processing and separating unit. The materials used for the fabrication were selected locally based on the design considerations and design analysis of the machine components. The three rollers Acha-dehusking machine which cost ₦52 300 at the time of its fabrication was finally assembled and evaluated. The Acha paddy fed through the hopper was made to pass through two roll gaps between fixed and adjustable rollers rotating in opposite direction at a speed ratio of 1.5:1 where it was abraded and dehusked. The mixture of the dehusked grain and the husk were separated by current of air blown from the winnowing fan in the separating unit. The dehusked grains, husk and the undehusked grains were separated and weighed. From the outcome of the test, the efficiency and the output of the machine were found to be 69.6% and 22.14Kg/hr respectively.
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spelling doaj.art-037ec397e7674088a356111423d95bc42022-12-22T01:02:22ZengUniversity of MaiduguriArid Zone Journal of Engineering, Technology and Environment2545-58182545-58182018-06-01142261271Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking MachineR. M. Idris0D. S. Yawas1A. M. Abdulrahman2Department of Mechanical Engineering, Ahmadu Bello University, Zaria, Kaduna State. NigeriaDepartment of Mechanical Engineering, Ahmadu Bello University, Zaria, Kaduna State. NigeriaDepartment of Mechanical Engineering, Ahmadu Bello University, Zaria, Kaduna State. NigeriaIn this study, a three rollers Acha-dehusking machine was designed, constructed and tested. The machine has the following units - feeding, processing and separating unit. The materials used for the fabrication were selected locally based on the design considerations and design analysis of the machine components. The three rollers Acha-dehusking machine which cost ₦52 300 at the time of its fabrication was finally assembled and evaluated. The Acha paddy fed through the hopper was made to pass through two roll gaps between fixed and adjustable rollers rotating in opposite direction at a speed ratio of 1.5:1 where it was abraded and dehusked. The mixture of the dehusked grain and the husk were separated by current of air blown from the winnowing fan in the separating unit. The dehusked grains, husk and the undehusked grains were separated and weighed. From the outcome of the test, the efficiency and the output of the machine were found to be 69.6% and 22.14Kg/hr respectively.http://azojete.com.ng/index.php/azojete/article/view/402
spellingShingle R. M. Idris
D. S. Yawas
A. M. Abdulrahman
Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking Machine
Arid Zone Journal of Engineering, Technology and Environment
title Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking Machine
title_full Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking Machine
title_fullStr Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking Machine
title_full_unstemmed Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking Machine
title_short Development and Performance Evaluation of a Three Rollers Acha (Digitaria exilis) Dehusking Machine
title_sort development and performance evaluation of a three rollers acha digitaria exilis dehusking machine
url http://azojete.com.ng/index.php/azojete/article/view/402
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