Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads

Ali Diane; Yomi Woro Gounkaou; Abdoul Rasmane Zangre; Boubou Bagre; Tizane Daho; Antoine Bere

doi:doi:10.11648/j.ijepe.20261504.11

Research Article |

| Peer-Reviewed

Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads

Ali Diane^*

, Yomi Woro Gounkaou

, Abdoul Rasmane Zangre

, Boubou Bagre

, Tizane Daho, Antoine Bere

Published in International Journal of Energy and Power Engineering (Volume 15, Issue 4)

Received: 19 June 2026 Accepted: 19 July 2026 Published: 24 July 2026

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Abstract

Rural areas in Burkina Faso suffer from very limited access to electricity. In 2024, the rural electrification rate was estimated at 10.2%, compared to 87.8% in urban areas, for an overall national rate of 34.2%. Electricity generation using stationary diesel engines is a viable solution to address this disparity. Decentralized power generation facilities continue to face operating costs associated with diesel fuel and environmental concerns. In this context, the use of gaseous fuels such as Liquefied Petroleum Gas (LPG) or synthesis gas as the primary fuel in dual-fuel diesel engines could significantly mitigate this limitation. The objective of this study is to evaluate the overall performance and emissions of a Lister Petter diesel engine operating in dual-fuel mode at low and medium loads. The engine operated on diesel-LPG at a constant speed of 1,500 rpm under partial load. Specific fuel consumption in dual-fuel mode increased by 0.04 kg/kWh at low load compared to that of pure diesel, resulting in a maximum decrease in overall efficiency of approximately 2%. The two engine operating modes have comparable CO₂ emissions. However, the diesel-LPG mode emits more CO and reduces NOx concentrations in the exhaust gases by an additional 25%. A maximum decrease of 60°C in the temperature of the exhaust gases was observed at medium load.

Published in	International Journal of Energy and Power Engineering (Volume 15, Issue 4)
DOI	10.11648/j.ijepe.20261504.11
Page(s)	92-101
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), 2026. Published by Science Publishing Group

Keywords

Diesel Engine, Dual Fuel, LPG, Performance, Emissions

References

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Diane, A., Gounkaou, Y. W., Zangre, A. R., Bagre, B., Daho, T., et al. (2026). Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads. International Journal of Energy and Power Engineering, 15(4), 92-101. https://doi.org/10.11648/j.ijepe.20261504.11

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ACS Style

Diane, A.; Gounkaou, Y. W.; Zangre, A. R.; Bagre, B.; Daho, T., et al. Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads. Int. J. Energy Power Eng. 2026, 15(4), 92-101. doi: 10.11648/j.ijepe.20261504.11

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AMA Style

Diane A, Gounkaou YW, Zangre AR, Bagre B, Daho T, et al. Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads. Int J Energy Power Eng. 2026;15(4):92-101. doi: 10.11648/j.ijepe.20261504.11

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@article{10.11648/j.ijepe.20261504.11,
  author = {Ali Diane and Yomi Woro Gounkaou and Abdoul Rasmane Zangre and Boubou Bagre and Tizane Daho and Antoine Bere},
  title = {Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads},
  journal = {International Journal of Energy and Power Engineering},
  volume = {15},
  number = {4},
  pages = {92-101},
  doi = {10.11648/j.ijepe.20261504.11},
  url = {https://doi.org/10.11648/j.ijepe.20261504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20261504.11},
  abstract = {Rural areas in Burkina Faso suffer from very limited access to electricity. In 2024, the rural electrification rate was estimated at 10.2%, compared to 87.8% in urban areas, for an overall national rate of 34.2%. Electricity generation using stationary diesel engines is a viable solution to address this disparity. Decentralized power generation facilities continue to face operating costs associated with diesel fuel and environmental concerns. In this context, the use of gaseous fuels such as Liquefied Petroleum Gas (LPG) or synthesis gas as the primary fuel in dual-fuel diesel engines could significantly mitigate this limitation. The objective of this study is to evaluate the overall performance and emissions of a Lister Petter diesel engine operating in dual-fuel mode at low and medium loads. The engine operated on diesel-LPG at a constant speed of 1,500 rpm under partial load. Specific fuel consumption in dual-fuel mode increased by 0.04 kg/kWh at low load compared to that of pure diesel, resulting in a maximum decrease in overall efficiency of approximately 2%. The two engine operating modes have comparable CO2 emissions. However, the diesel-LPG mode emits more CO and reduces NOx concentrations in the exhaust gases by an additional 25%. A maximum decrease of 60°C in the temperature of the exhaust gases was observed at medium load.},
 year = {2026}
}

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TY - JOUR
T1 - Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads
AU - Ali Diane
AU - Yomi Woro Gounkaou
AU - Abdoul Rasmane Zangre
AU - Boubou Bagre
AU - Tizane Daho
AU - Antoine Bere
Y1 - 2026/07/24
PY - 2026
N1 - https://doi.org/10.11648/j.ijepe.20261504.11
DO - 10.11648/j.ijepe.20261504.11
T2 - International Journal of Energy and Power Engineering
JF - International Journal of Energy and Power Engineering
JO - International Journal of Energy and Power Engineering
SP - 92
EP - 101
PB - Science Publishing Group
SN - 2326-960X
UR - https://doi.org/10.11648/j.ijepe.20261504.11
AB - Rural areas in Burkina Faso suffer from very limited access to electricity. In 2024, the rural electrification rate was estimated at 10.2%, compared to 87.8% in urban areas, for an overall national rate of 34.2%. Electricity generation using stationary diesel engines is a viable solution to address this disparity. Decentralized power generation facilities continue to face operating costs associated with diesel fuel and environmental concerns. In this context, the use of gaseous fuels such as Liquefied Petroleum Gas (LPG) or synthesis gas as the primary fuel in dual-fuel diesel engines could significantly mitigate this limitation. The objective of this study is to evaluate the overall performance and emissions of a Lister Petter diesel engine operating in dual-fuel mode at low and medium loads. The engine operated on diesel-LPG at a constant speed of 1,500 rpm under partial load. Specific fuel consumption in dual-fuel mode increased by 0.04 kg/kWh at low load compared to that of pure diesel, resulting in a maximum decrease in overall efficiency of approximately 2%. The two engine operating modes have comparable CO2 emissions. However, the diesel-LPG mode emits more CO and reduces NOx concentrations in the exhaust gases by an additional 25%. A maximum decrease of 60°C in the temperature of the exhaust gases was observed at medium load.
VL - 15
IS - 4
ER -

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Author Information

Ali Diane

Department of Environmental Physics and Chemistry, Joseph Ki Zerbo University, Ouagadougou, Burkina Faso

Contact Email

http://orcid.org/0009-0009-3763-7404
Yomi Woro Gounkaou

Department of Environmental Physics and Chemistry, Joseph Ki Zerbo University, Ouagadougou, Burkina Faso;Department of Mechanical and Productids Engineering, Nazi Boni University, Bobo Dioulasso, Burkina Faso

Contact Email

http://orcid.org/0009-0008-4816-5900
Abdoul Rasmane Zangre

Department of Energy, Institute for Research in Applied Sciences and Technology, Ouagadougou, Burkina Faso

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http://orcid.org/0009-0003-9922-0483
Boubou Bagre

Department of Environmental Physics and Chemistry, Joseph Ki Zerbo University, Ouagadougou, Burkina Faso

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http://orcid.org/0000-0002-6024-3923
Tizane Daho

Department of Environmental Physics and Chemistry, Joseph Ki Zerbo University, Ouagadougou, Burkina Faso

Contact Email
Antoine Bere

Department of Environmental Physics and Chemistry, Joseph Ki Zerbo University, Ouagadougou, Burkina Faso

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APA Style

Diane, A., Gounkaou, Y. W., Zangre, A. R., Bagre, B., Daho, T., et al. (2026). Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads. International Journal of Energy and Power Engineering, 15(4), 92-101. https://doi.org/10.11648/j.ijepe.20261504.11

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ACS Style

Diane, A.; Gounkaou, Y. W.; Zangre, A. R.; Bagre, B.; Daho, T., et al. Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads. Int. J. Energy Power Eng. 2026, 15(4), 92-101. doi: 10.11648/j.ijepe.20261504.11

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AMA Style

Diane A, Gounkaou YW, Zangre AR, Bagre B, Daho T, et al. Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads. Int J Energy Power Eng. 2026;15(4):92-101. doi: 10.11648/j.ijepe.20261504.11

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@article{10.11648/j.ijepe.20261504.11,
  author = {Ali Diane and Yomi Woro Gounkaou and Abdoul Rasmane Zangre and Boubou Bagre and Tizane Daho and Antoine Bere},
  title = {Performance and Emissions of a Dual-Fuel Diesel-LPG Engine Operating at Low and Medium Loads},
  journal = {International Journal of Energy and Power Engineering},
  volume = {15},
  number = {4},
  pages = {92-101},
  doi = {10.11648/j.ijepe.20261504.11},
  url = {https://doi.org/10.11648/j.ijepe.20261504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20261504.11},
  abstract = {Rural areas in Burkina Faso suffer from very limited access to electricity. In 2024, the rural electrification rate was estimated at 10.2%, compared to 87.8% in urban areas, for an overall national rate of 34.2%. Electricity generation using stationary diesel engines is a viable solution to address this disparity. Decentralized power generation facilities continue to face operating costs associated with diesel fuel and environmental concerns. In this context, the use of gaseous fuels such as Liquefied Petroleum Gas (LPG) or synthesis gas as the primary fuel in dual-fuel diesel engines could significantly mitigate this limitation. The objective of this study is to evaluate the overall performance and emissions of a Lister Petter diesel engine operating in dual-fuel mode at low and medium loads. The engine operated on diesel-LPG at a constant speed of 1,500 rpm under partial load. Specific fuel consumption in dual-fuel mode increased by 0.04 kg/kWh at low load compared to that of pure diesel, resulting in a maximum decrease in overall efficiency of approximately 2%. The two engine operating modes have comparable CO2 emissions. However, the diesel-LPG mode emits more CO and reduces NOx concentrations in the exhaust gases by an additional 25%. A maximum decrease of 60°C in the temperature of the exhaust gases was observed at medium load.},
 year = {2026}
}

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