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The Effect of Pure Oxygenated Biofuels on Efficiency and Emissions in a Gasoline Optimised DISI Engine

Author

Listed:
  • Tara Larsson

    (KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden)

  • Senthil Krishnan Mahendar

    (KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden)

  • Anders Christiansen-Erlandsson

    (KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
    Department of Mechanical Engineering Thermal Energy, Technical University of Denmark-DTU, 2800 Kgs. Lyngby, Denmark)

  • Ulf Olofsson

    (KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden)

Abstract

The negative impact of transport on climate has led to incentives to increase the amount of renewable fuels used in internal combustion engines (ICEs). Oxygenated, liquid biofuels are promising alternatives, as they exhibit similar combustion behaviour to gasoline. In this article, the effect of the different biofuels on engine efficiency, combustion propagation and emissions of a gasoline-optimised direct injected spark ignited (DISI) engine were evaluated through engine experiments. The experiments were performed without any engine hardware modifications. The investigated fuels are gasoline, four alcohols (methanol, ethanol, n-butanol and iso-butanol) and one ether (MTBE). All fuels were tested at two speed sweeps at low and mid load conditions, and a spark timing sweep at low load conditions. The oxygenated biofuels exhibit increased efficiencies, even at non-knock-limited conditions. At lower loads, the oxygenated fuels decrease CO, HC and NOx emissions. However, at mid load conditions, decreased volatility of the alcohols leads to increased emissions due to fuel impingement effects. Methanol exhibited the highest efficiencies and significantly increased burn rates compared to the other fuels. Gasoline exhibited the lowest level of PN and PM emissions. N-butanol and iso-butanol show significantly increased levels of particle emissions compared to the other fuels.

Suggested Citation

  • Tara Larsson & Senthil Krishnan Mahendar & Anders Christiansen-Erlandsson & Ulf Olofsson, 2021. "The Effect of Pure Oxygenated Biofuels on Efficiency and Emissions in a Gasoline Optimised DISI Engine," Energies, MDPI, vol. 14(13), pages 1-24, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3908-:d:584939
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    References listed on IDEAS

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    Cited by:

    1. Xiang Li & Yiqiang Pei & Dayou Li & Tahmina Ajmal & Khaqan-Jim Rana & Abdel Aitouche & Raouf Mobasheri & Zhijun Peng, 2021. "Effects of Water Injection Strategies on Oxy-Fuel Combustion Characteristics of a Dual-Injection Spark Ignition Engine," Energies, MDPI, vol. 14(17), pages 1-24, August.
    2. Stanislaw Szwaja & Michal Gruca & Michal Pyrc & Romualdas Juknelevičius, 2021. "Performance and Exhaust Emissions of a Spark Ignition Internal Combustion Engine Fed with Butanol–Glycerol Blend," Energies, MDPI, vol. 14(20), pages 1-15, October.
    3. Silvana Di Iorio & Francesco Catapano & Agnese Magno & Paolo Sementa & Bianca Maria Vaglieco, 2023. "The Potential of Ethanol/Methanol Blends as Renewable Fuels for DI SI Engines," Energies, MDPI, vol. 16(6), pages 1-15, March.
    4. Michał Wojcieszyk & Lotta Knuutila & Yuri Kroyan & Mário de Pinto Balsemão & Rupali Tripathi & Juha Keskivali & Anna Karvo & Annukka Santasalo-Aarnio & Otto Blomstedt & Martti Larmi, 2021. "Performance of Anisole and Isobutanol as Gasoline Bio-Blendstocks for Spark Ignition Engines," Sustainability, MDPI, vol. 13(16), pages 1-19, August.
    5. Navaneetha Krishnan Balakrishnan & Yew Heng Teoh & Heoy Geok How & Thanh Danh Le & Huu Tho Nguyen, 2023. "An Experimental Investigation on the Characteristics of a Compression Ignition Engine Fuelled by Diesel-Palm Biodiesel–Ethanol/Propanol Based Ternary Blends," Energies, MDPI, vol. 16(2), pages 1-18, January.
    6. Tomasz Kalak, 2023. "Potential Use of Industrial Biomass Waste as a Sustainable Energy Source in the Future," Energies, MDPI, vol. 16(4), pages 1-25, February.

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