People all over the world use faba beans, a highly valued legume crop with a high protein content, as a source of protein. Despite being a traditional process, threshing is a crop that provides food and feed and has numerous economic benefits for the farming people in Ethiopia's highlands. Even though Ethiopia produces a lot of faba beans, threshing is still done by hand or using traditional methods. The traditional threshing technique for faba beans is time-consuming, tedious, and vulnerable to contamination, waste, and grain or seed damage. The Faba bean thresher was evaluated and tested in terms of threshing capacity, threshing efficiency, cleaning efficiency, and mechanical damage. A diesel engine-powered faba bean threshing thresher was created, built, tested, and assessed in order to address these issues. Conducted at three different concave clearances (25, 30, and 35mm), feed rates (8, 12, and 16kg/min), and cylinder speeds (400, 450, and 500rpm). The factorial, split-split-plot design was the experimental setup used. With a cylinder speed of 500rpm, concave clearance of 35mm, and a feeding rate of 16kg/min, the maximum threshing capacity of 625.54kg/h was achieved. Concave clearing had a greater influence on the threshing efficiency and the proportion of un-threshed grain than other variables. A maximum threshing efficiency of 96.67% was attained with a concave clearance of 25mm and a cylinder speed of 400rpm. A cylinder speed of 500rpm and a concave clearance of 25mm produced the highest cleaning efficiency of 95.00%. At a feeding rate of 16kg/min, a concave clearance of 25mm, and a cylinder speed of 500rpm, the maximum mechanical damage of 6.13% was observed.
| Published in | American Journal of Mechanical and Industrial Engineering (Volume 10, Issue 6) |
| DOI | 10.11648/j.ajmie.20251006.12 |
| Page(s) | 108-115 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2025. Published by Science Publishing Group |
Faba Bean, Threshing, Testing, Performance Evaluation
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APA Style
Abera, D., Diro, T. (2025). Performance Evaluation of Engine Operated Faba Bean Threshing Machine. American Journal of Mechanical and Industrial Engineering, 10(6), 108-115. https://doi.org/10.11648/j.ajmie.20251006.12
ACS Style
Abera, D.; Diro, T. Performance Evaluation of Engine Operated Faba Bean Threshing Machine. Am. J. Mech. Ind. Eng. 2025, 10(6), 108-115. doi: 10.11648/j.ajmie.20251006.12
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Download@article{10.11648/j.ajmie.20251006.12,
author = {Desta Abera and Teressa Diro},
title = {Performance Evaluation of Engine Operated Faba Bean Threshing Machine},
journal = {American Journal of Mechanical and Industrial Engineering},
volume = {10},
number = {6},
pages = {108-115},
doi = {10.11648/j.ajmie.20251006.12},
url = {https://doi.org/10.11648/j.ajmie.20251006.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmie.20251006.12},
abstract = {People all over the world use faba beans, a highly valued legume crop with a high protein content, as a source of protein. Despite being a traditional process, threshing is a crop that provides food and feed and has numerous economic benefits for the farming people in Ethiopia's highlands. Even though Ethiopia produces a lot of faba beans, threshing is still done by hand or using traditional methods. The traditional threshing technique for faba beans is time-consuming, tedious, and vulnerable to contamination, waste, and grain or seed damage. The Faba bean thresher was evaluated and tested in terms of threshing capacity, threshing efficiency, cleaning efficiency, and mechanical damage. A diesel engine-powered faba bean threshing thresher was created, built, tested, and assessed in order to address these issues. Conducted at three different concave clearances (25, 30, and 35mm), feed rates (8, 12, and 16kg/min), and cylinder speeds (400, 450, and 500rpm). The factorial, split-split-plot design was the experimental setup used. With a cylinder speed of 500rpm, concave clearance of 35mm, and a feeding rate of 16kg/min, the maximum threshing capacity of 625.54kg/h was achieved. Concave clearing had a greater influence on the threshing efficiency and the proportion of un-threshed grain than other variables. A maximum threshing efficiency of 96.67% was attained with a concave clearance of 25mm and a cylinder speed of 400rpm. A cylinder speed of 500rpm and a concave clearance of 25mm produced the highest cleaning efficiency of 95.00%. At a feeding rate of 16kg/min, a concave clearance of 25mm, and a cylinder speed of 500rpm, the maximum mechanical damage of 6.13% was observed.},
year = {2025}
}
TY - JOUR T1 - Performance Evaluation of Engine Operated Faba Bean Threshing Machine AU - Desta Abera AU - Teressa Diro Y1 - 2025/12/09 PY - 2025 N1 - https://doi.org/10.11648/j.ajmie.20251006.12 DO - 10.11648/j.ajmie.20251006.12 T2 - American Journal of Mechanical and Industrial Engineering JF - American Journal of Mechanical and Industrial Engineering JO - American Journal of Mechanical and Industrial Engineering SP - 108 EP - 115 PB - Science Publishing Group SN - 2575-6060 UR - https://doi.org/10.11648/j.ajmie.20251006.12 AB - People all over the world use faba beans, a highly valued legume crop with a high protein content, as a source of protein. Despite being a traditional process, threshing is a crop that provides food and feed and has numerous economic benefits for the farming people in Ethiopia's highlands. Even though Ethiopia produces a lot of faba beans, threshing is still done by hand or using traditional methods. The traditional threshing technique for faba beans is time-consuming, tedious, and vulnerable to contamination, waste, and grain or seed damage. The Faba bean thresher was evaluated and tested in terms of threshing capacity, threshing efficiency, cleaning efficiency, and mechanical damage. A diesel engine-powered faba bean threshing thresher was created, built, tested, and assessed in order to address these issues. Conducted at three different concave clearances (25, 30, and 35mm), feed rates (8, 12, and 16kg/min), and cylinder speeds (400, 450, and 500rpm). The factorial, split-split-plot design was the experimental setup used. With a cylinder speed of 500rpm, concave clearance of 35mm, and a feeding rate of 16kg/min, the maximum threshing capacity of 625.54kg/h was achieved. Concave clearing had a greater influence on the threshing efficiency and the proportion of un-threshed grain than other variables. A maximum threshing efficiency of 96.67% was attained with a concave clearance of 25mm and a cylinder speed of 400rpm. A cylinder speed of 500rpm and a concave clearance of 25mm produced the highest cleaning efficiency of 95.00%. At a feeding rate of 16kg/min, a concave clearance of 25mm, and a cylinder speed of 500rpm, the maximum mechanical damage of 6.13% was observed. VL - 10 IS - 6 ER -
Oromia Agricultural Research Institute, Bako Agricultural Engineering Research Center, Bako, Ethiopia
Oromia Agricultural Research Institute, Bako Agricultural Engineering Research Center, Bako, Ethiopia
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