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An experimental study on performance and emission characteristics of an IDI diesel engine operating with neat oil-diesel blend emulsion

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  • Hossain, A.K.
  • Refahtalab, P.
  • Omran, A.
  • Smith, D.I.
  • Davies, P.A.

Abstract

Stable neat oil emulsions were prepared and tested in a multi-cylinder engine to assess the exhaust emission and performance characteristics. The heating value of the biofuel-diesel blend emulsion was 16.8% higher than neat rapeseed oil and 6.7% lower than neat diesel fuels. The density of the biofuel emulsions were increased by up to 11% as compared to neat fossil diesel. The engine produced similar power output when emulsified fuels were used instead of fossil diesel. At full load, the thermal efficiency of neat biofuel emulsion was 12% higher than that of fossil diesel. At higher loads, the bsfc of the biofuel blend emulsion was very close to that of fossil diesel. Compared to fossil diesel, emulsified fuels gave slightly higher CO2 emissions. Biofuel and biofuel-diesel blend emulsions produced up to 15% lower NOx emissions. At 100% load, the smoke intensity of biofuel blend emulsion was about 29% lower than neat fossil diesel operation. Emulsified fuels combusted well, and at higher loads produced similar exhaust gas temperatures to those in neat fossil diesel operation. The study concluded that neat oil - diesel - water emulsion fuel could be used in an unmodified diesel engine for increased thermal efficiency and decreased emissions.

Suggested Citation

  • Hossain, A.K. & Refahtalab, P. & Omran, A. & Smith, D.I. & Davies, P.A., 2020. "An experimental study on performance and emission characteristics of an IDI diesel engine operating with neat oil-diesel blend emulsion," Renewable Energy, Elsevier, vol. 146(C), pages 1041-1050.
    • Handle: RePEc:eee:renene:v:146:y:2020:i:c:p:1041-1050
    DOI: 10.1016/j.renene.2019.06.162
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    References listed on IDEAS

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    Cited by:

    1. Vikas Sharma & Abul K. Hossain & Ganesh Duraisamy, 2021. "Experimental Investigation of Neat Biodiesels’ Saturation Level on Combustion and Emission Characteristics in a CI Engine," Energies, MDPI, vol. 14(16), pages 1-18, August.
    2. Genii Kuznetsov & Vadim Dorokhov & Ksenia Vershinina & Susanna Kerimbekova & Daniil Romanov & Ksenia Kartashova, 2023. "Composite Liquid Biofuels for Power Plants and Engines: Review," Energies, MDPI, vol. 16(16), pages 1-20, August.
    3. Saad Ahmad & Ali Turab Jafry & Muteeb ul Haq & Naseem Abbas & Huma Ajab & Arif Hussain & Uzair Sajjad, 2023. "Performance and Emission Characteristics of Second-Generation Biodiesel with Oxygenated Additives," Energies, MDPI, vol. 16(13), pages 1-33, July.
    4. Hamid, M. Fadzli & Idroas, M. Yusof & Mazlan, M. & Sa'ad, S. & Teoh, Y.H. & Che Mat, S. & Miskam, M.A. & Abdullah, M.K., 2022. "Methods for improving the in-cylinder airflow characteristics for sustainable transportation using fuels with higher viscosity: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).
    5. Elsayed Abdelhameed & Hiroshi Tashima, 2022. "EGR and Emulsified Fuel Combination Effects on the Combustion, Performance, and NOx Emissions in Marine Diesel Engines," Energies, MDPI, vol. 16(1), pages 1-22, December.

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