Performance Evaluation of Engine-operated Pulse Splitting Machine

Teressa Diro; Desta Abera; Birtukan Mokinin

doi:doi:10.11648/j.ijimse.20251004.11

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Performance Evaluation of Engine-operated Pulse Splitting Machine

Teressa Diro^*

, Desta Abera

, Birtukan Mokinin

Published in International Journal of Industrial and Manufacturing Systems Engineering (Volume 10, Issue 4)

Received: 15 November 2025 Accepted: 1 December 2025 Published: 29 December 2025

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Abstract

Pulses are an important part of vegetarians' diets because the other foods they eat don't include much protein, and they are the main sources of various minerals, such as calcium, iron, phosphorus, and protein. The majority of the time, pulses are eaten as dehulled splits. The pulse processing is still restricted to time-consuming, health-harming, gender-biased traditional methods that assign all food preparation and processing duties to women. Despite Ethiopia's status as one of the world's leading producers of pulses, low post-harvest technological availability resulted in lower productivity and output. The machine was tested and evaluated in terms of splitting capacity, splitting efficiencies, mechanical damage percentage, and cleaning efficiency for pulse crops like Faba bean, Pea, and Lentil. The experimental design was carried out as a split-plot design having drum speeds with three levels in main plots and feeding rates with two levels in sub-plots, and the analysis was made using the R software. The experimental results clearly demonstrated that disc speed and feed rate are the most critical parameters influencing splitting capacity, splitting efficiency, cleaning efficiency, and grain breakage across Faba bean, pea, and lentil crops. Splitting capacity increased consistently with both drum speed and feed rate, with maximum throughput achieved at the highest speed (650rpm) and feed rate (8 kg/min). Splitting efficiency improved with increasing drum speed but declined slightly at higher feed rates, indicating that while throughput rises, efficiency may be compromised under heavy loads. Cleaning efficiency was highest at high drum speeds and moderate feed rates, confirming that excessive feed rates reduce the effectiveness of impurity separation. Breakage percentage increased with drum speed but decreased with higher feed rates, showing that high speeds intensify mechanical stress while higher feed rates provide a cushioning effect that reduces kernel damage.

Published in	International Journal of Industrial and Manufacturing Systems Engineering (Volume 10, Issue 4)
DOI	10.11648/j.ijimse.20251004.11
Page(s)	74-81
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

Keywords

Pulses, Splitting Capacity, Cleaning Efficiency, Broken Percentage

References

[1]	Cereals, Pulses, Legumes, and Vegetable Proteins.
[2]	S. Nedumaran, P. Abinaya, P. Jyosthnaa, B. Shraavya, P. P. Rao, and C. Bantilan, ‘Grain legumes production, consumption and trade trends in developing countries’, 2015.
[3]	O. Chukwu, ‘Performance evaluation of locally manufactured rice threshers in Niger state’, J. Eng. Appl. Sci, vol. 3, no. 7, pp. 602–606, 2008.
[4]	N. Singh, ‘Pulses: an overview’, J. Food Sci. Technol., vol. 54, no. 4, pp. 853–857, 2017.
[5]	A. Boere, T. Rutgers, D. Willems, and W. Dolfen, ‘Business Opportunities Report Oilseeds and pulses in the series written for the Ethiopian Netherlands business event 5-6 November 2015’, Rijswijk, The Netherlands, vol. 9, 2015.
[6]	C. Yirga, S. Rashid, B. Behute, and S. Lemma, ‘Pulses value chain potential in Ethiopia: Constraints and opportunities for enhancing exports’, Gates Open Res, vol. 3, no. 276, p. 276, 2019.
[7]	S. Koroma, P. B. Molina, S. Woolfrey, F. Rampa, and N. You, ‘Promoting regional trade in pulses in the Horn of Africa’, Accra, Ghana, FAO, 2016.
[8]	S. Rashid, C. Yirga, B. Behute, and S. Lemma, ‘Pulses value chain in Ethiopia: Constraints and opportunities for enhancing exports’, 2010.
[9]	V. I. O. Ndirika, ‘Development and performance evaluation of a millet thresher’, J. Agric. Eng. Technol., vol. 2, no. 1, pp. 80–89, 1994.
[10]	P. Burridge, A. Hensing, and D. Petterson, ‘Australian pulse quality laboratory manual’, SARDI Grain Lab. GRDC, Urrabrae, 2001.
[11]	K. A. Gomez and A. A. Gomez, Statistical procedures for agricultural research. John wiley & sons, 1984.

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APA Style

Diro, T., Abera, D., Mokinin, B. (2025). Performance Evaluation of Engine-operated Pulse Splitting Machine. International Journal of Industrial and Manufacturing Systems Engineering, 10(4), 74-81. https://doi.org/10.11648/j.ijimse.20251004.11

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ACS Style

Diro, T.; Abera, D.; Mokinin, B. Performance Evaluation of Engine-operated Pulse Splitting Machine. Int. J. Ind. Manuf. Syst. Eng. 2025, 10(4), 74-81. doi: 10.11648/j.ijimse.20251004.11

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AMA Style

Diro T, Abera D, Mokinin B. Performance Evaluation of Engine-operated Pulse Splitting Machine. Int J Ind Manuf Syst Eng. 2025;10(4):74-81. doi: 10.11648/j.ijimse.20251004.11

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@article{10.11648/j.ijimse.20251004.11,
  author = {Teressa Diro and Desta Abera and Birtukan Mokinin},
  title = {Performance Evaluation of Engine-operated Pulse Splitting Machine},
  journal = {International Journal of Industrial and Manufacturing Systems Engineering},
  volume = {10},
  number = {4},
  pages = {74-81},
  doi = {10.11648/j.ijimse.20251004.11},
  url = {https://doi.org/10.11648/j.ijimse.20251004.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijimse.20251004.11},
  abstract = {Pulses are an important part of vegetarians' diets because the other foods they eat don't include much protein, and they are the main sources of various minerals, such as calcium, iron, phosphorus, and protein. The majority of the time, pulses are eaten as dehulled splits. The pulse processing is still restricted to time-consuming, health-harming, gender-biased traditional methods that assign all food preparation and processing duties to women. Despite Ethiopia's status as one of the world's leading producers of pulses, low post-harvest technological availability resulted in lower productivity and output. The machine was tested and evaluated in terms of splitting capacity, splitting efficiencies, mechanical damage percentage, and cleaning efficiency for pulse crops like Faba bean, Pea, and Lentil. The experimental design was carried out as a split-plot design having drum speeds with three levels in main plots and feeding rates with two levels in sub-plots, and the analysis was made using the R software. The experimental results clearly demonstrated that disc speed and feed rate are the most critical parameters influencing splitting capacity, splitting efficiency, cleaning efficiency, and grain breakage across Faba bean, pea, and lentil crops. Splitting capacity increased consistently with both drum speed and feed rate, with maximum throughput achieved at the highest speed (650rpm) and feed rate (8 kg/min). Splitting efficiency improved with increasing drum speed but declined slightly at higher feed rates, indicating that while throughput rises, efficiency may be compromised under heavy loads. Cleaning efficiency was highest at high drum speeds and moderate feed rates, confirming that excessive feed rates reduce the effectiveness of impurity separation. Breakage percentage increased with drum speed but decreased with higher feed rates, showing that high speeds intensify mechanical stress while higher feed rates provide a cushioning effect that reduces kernel damage.},
 year = {2025}
}

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TY  - JOUR
T1  - Performance Evaluation of Engine-operated Pulse Splitting Machine
AU  - Teressa Diro
AU  - Desta Abera
AU  - Birtukan Mokinin
Y1  - 2025/12/29
PY  - 2025
N1  - https://doi.org/10.11648/j.ijimse.20251004.11
DO  - 10.11648/j.ijimse.20251004.11
T2  - International Journal of Industrial and Manufacturing Systems Engineering
JF  - International Journal of Industrial and Manufacturing Systems Engineering
JO  - International Journal of Industrial and Manufacturing Systems Engineering
SP  - 74
EP  - 81
PB  - Science Publishing Group
SN  - 2575-3142
UR  - https://doi.org/10.11648/j.ijimse.20251004.11
AB  - Pulses are an important part of vegetarians' diets because the other foods they eat don't include much protein, and they are the main sources of various minerals, such as calcium, iron, phosphorus, and protein. The majority of the time, pulses are eaten as dehulled splits. The pulse processing is still restricted to time-consuming, health-harming, gender-biased traditional methods that assign all food preparation and processing duties to women. Despite Ethiopia's status as one of the world's leading producers of pulses, low post-harvest technological availability resulted in lower productivity and output. The machine was tested and evaluated in terms of splitting capacity, splitting efficiencies, mechanical damage percentage, and cleaning efficiency for pulse crops like Faba bean, Pea, and Lentil. The experimental design was carried out as a split-plot design having drum speeds with three levels in main plots and feeding rates with two levels in sub-plots, and the analysis was made using the R software. The experimental results clearly demonstrated that disc speed and feed rate are the most critical parameters influencing splitting capacity, splitting efficiency, cleaning efficiency, and grain breakage across Faba bean, pea, and lentil crops. Splitting capacity increased consistently with both drum speed and feed rate, with maximum throughput achieved at the highest speed (650rpm) and feed rate (8 kg/min). Splitting efficiency improved with increasing drum speed but declined slightly at higher feed rates, indicating that while throughput rises, efficiency may be compromised under heavy loads. Cleaning efficiency was highest at high drum speeds and moderate feed rates, confirming that excessive feed rates reduce the effectiveness of impurity separation. Breakage percentage increased with drum speed but decreased with higher feed rates, showing that high speeds intensify mechanical stress while higher feed rates provide a cushioning effect that reduces kernel damage.
VL  - 10
IS  - 4
ER  -

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Author Information

Teressa Diro

Oromia Agricultural Research Institute, Bako Agricultural Engineering Research Center, Bako, Ethiopia

Contact Email

http://orcid.org/0009-0009-6516-5360
Desta Abera

Oromia Agricultural Research Institute, Bako Agricultural Engineering Research Center, Bako, Ethiopia

Contact Email

http://orcid.org/0009-0005-7139-4689
Birtukan Mokinin

Oromia Agricultural Research Institute, Bako Agricultural Engineering Research Center, Bako, Ethiopia

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APA Style

Diro, T., Abera, D., Mokinin, B. (2025). Performance Evaluation of Engine-operated Pulse Splitting Machine. International Journal of Industrial and Manufacturing Systems Engineering, 10(4), 74-81. https://doi.org/10.11648/j.ijimse.20251004.11

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ACS Style

Diro, T.; Abera, D.; Mokinin, B. Performance Evaluation of Engine-operated Pulse Splitting Machine. Int. J. Ind. Manuf. Syst. Eng. 2025, 10(4), 74-81. doi: 10.11648/j.ijimse.20251004.11

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AMA Style

Diro T, Abera D, Mokinin B. Performance Evaluation of Engine-operated Pulse Splitting Machine. Int J Ind Manuf Syst Eng. 2025;10(4):74-81. doi: 10.11648/j.ijimse.20251004.11

Copy | Download

@article{10.11648/j.ijimse.20251004.11,
  author = {Teressa Diro and Desta Abera and Birtukan Mokinin},
  title = {Performance Evaluation of Engine-operated Pulse Splitting Machine},
  journal = {International Journal of Industrial and Manufacturing Systems Engineering},
  volume = {10},
  number = {4},
  pages = {74-81},
  doi = {10.11648/j.ijimse.20251004.11},
  url = {https://doi.org/10.11648/j.ijimse.20251004.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijimse.20251004.11},
  abstract = {Pulses are an important part of vegetarians' diets because the other foods they eat don't include much protein, and they are the main sources of various minerals, such as calcium, iron, phosphorus, and protein. The majority of the time, pulses are eaten as dehulled splits. The pulse processing is still restricted to time-consuming, health-harming, gender-biased traditional methods that assign all food preparation and processing duties to women. Despite Ethiopia's status as one of the world's leading producers of pulses, low post-harvest technological availability resulted in lower productivity and output. The machine was tested and evaluated in terms of splitting capacity, splitting efficiencies, mechanical damage percentage, and cleaning efficiency for pulse crops like Faba bean, Pea, and Lentil. The experimental design was carried out as a split-plot design having drum speeds with three levels in main plots and feeding rates with two levels in sub-plots, and the analysis was made using the R software. The experimental results clearly demonstrated that disc speed and feed rate are the most critical parameters influencing splitting capacity, splitting efficiency, cleaning efficiency, and grain breakage across Faba bean, pea, and lentil crops. Splitting capacity increased consistently with both drum speed and feed rate, with maximum throughput achieved at the highest speed (650rpm) and feed rate (8 kg/min). Splitting efficiency improved with increasing drum speed but declined slightly at higher feed rates, indicating that while throughput rises, efficiency may be compromised under heavy loads. Cleaning efficiency was highest at high drum speeds and moderate feed rates, confirming that excessive feed rates reduce the effectiveness of impurity separation. Breakage percentage increased with drum speed but decreased with higher feed rates, showing that high speeds intensify mechanical stress while higher feed rates provide a cushioning effect that reduces kernel damage.},
 year = {2025}
}

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TY  - JOUR
T1  - Performance Evaluation of Engine-operated Pulse Splitting Machine
AU  - Teressa Diro
AU  - Desta Abera
AU  - Birtukan Mokinin
Y1  - 2025/12/29
PY  - 2025
N1  - https://doi.org/10.11648/j.ijimse.20251004.11
DO  - 10.11648/j.ijimse.20251004.11
T2  - International Journal of Industrial and Manufacturing Systems Engineering
JF  - International Journal of Industrial and Manufacturing Systems Engineering
JO  - International Journal of Industrial and Manufacturing Systems Engineering
SP  - 74
EP  - 81
PB  - Science Publishing Group
SN  - 2575-3142
UR  - https://doi.org/10.11648/j.ijimse.20251004.11
AB  - Pulses are an important part of vegetarians' diets because the other foods they eat don't include much protein, and they are the main sources of various minerals, such as calcium, iron, phosphorus, and protein. The majority of the time, pulses are eaten as dehulled splits. The pulse processing is still restricted to time-consuming, health-harming, gender-biased traditional methods that assign all food preparation and processing duties to women. Despite Ethiopia's status as one of the world's leading producers of pulses, low post-harvest technological availability resulted in lower productivity and output. The machine was tested and evaluated in terms of splitting capacity, splitting efficiencies, mechanical damage percentage, and cleaning efficiency for pulse crops like Faba bean, Pea, and Lentil. The experimental design was carried out as a split-plot design having drum speeds with three levels in main plots and feeding rates with two levels in sub-plots, and the analysis was made using the R software. The experimental results clearly demonstrated that disc speed and feed rate are the most critical parameters influencing splitting capacity, splitting efficiency, cleaning efficiency, and grain breakage across Faba bean, pea, and lentil crops. Splitting capacity increased consistently with both drum speed and feed rate, with maximum throughput achieved at the highest speed (650rpm) and feed rate (8 kg/min). Splitting efficiency improved with increasing drum speed but declined slightly at higher feed rates, indicating that while throughput rises, efficiency may be compromised under heavy loads. Cleaning efficiency was highest at high drum speeds and moderate feed rates, confirming that excessive feed rates reduce the effectiveness of impurity separation. Breakage percentage increased with drum speed but decreased with higher feed rates, showing that high speeds intensify mechanical stress while higher feed rates provide a cushioning effect that reduces kernel damage.
VL  - 10
IS  - 4
ER  -

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