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Detailed Injection Strategy Analysis of a Heavy-Duty Diesel Engine Running on Rape Methyl Ester

Author

Listed:
  • Nikita Zuev

    (National Research Center “NAMI”, 125438 Moscow, Russia)

  • Andrey Kozlov

    (National Research Center “NAMI”, 125438 Moscow, Russia)

  • Alexey Terenchenko

    (National Research Center “NAMI”, 125438 Moscow, Russia)

  • Kirill Karpukhin

    (National Research Center “NAMI”, 125438 Moscow, Russia)

  • Ulugbek Azimov

    (Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK)

Abstract

Using biodiesel fuel in diesel engines for heavy-duty transport is important to meet the stringent emission regulations. Biodiesel is an oxygenated fuel and its physical and chemical properties are close to diesel fuel, yet there is still a need to analyze and tune the fuel injection parameters to optimize the combustion process and emissions. A four-injections strategy was used: two pilots, one main and one post injection. A highly advanced SOI decreases the NOx and the compression work but makes the combustion process less efficient. The pilot injection fuel mass influences the combustion only at injection close to the top dead center during the compression stroke. The post injection has no influence on the compression work, only on the emissions and the indicated work. An optimal injection strategy was found to be: pilot SOI 19.2 CAD BTDC, pilot injection fuel mass 25.4%; main SOI 3.7 CAD BTDC, main injection fuel mass 67.3% mg; post SOI 2 CAD ATDC, post injection fuel mass 7.3% (the injection fuel mass is given as a percentage of the total fuel mass injected). This allows the indicated work near the base case level to be maintained, the pressure rise rate to decrease by 20% and NOx emissions to decrease by 10%, but leads to a 5% increase in PM emissions.

Suggested Citation

  • Nikita Zuev & Andrey Kozlov & Alexey Terenchenko & Kirill Karpukhin & Ulugbek Azimov, 2021. "Detailed Injection Strategy Analysis of a Heavy-Duty Diesel Engine Running on Rape Methyl Ester," Energies, MDPI, vol. 14(13), pages 1-25, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3717-:d:579213
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    References listed on IDEAS

    as
    1. Park, Su Han & Yoon, Seung Hyun & Lee, Chang Sik, 2011. "Effects of multiple-injection strategies on overall spray behavior, combustion, and emissions reduction characteristics of biodiesel fuel," Applied Energy, Elsevier, vol. 88(1), pages 88-98, January.
    2. Deqing Mei & Qisong Yu & Zhengjun Zhang & Shan Yue & Lizhi Tu, 2021. "Effects of Two Pilot Injection on Combustion and Emissions in a PCCI Diesel Engine," Energies, MDPI, vol. 14(6), pages 1-14, March.
    3. Jeftić, Marko & Zheng, Ming, 2015. "A study of the effect of post injection on combustion and emissions with premixing enhanced fueling strategies," Applied Energy, Elsevier, vol. 157(C), pages 861-870.
    4. Roberto Meloni & Vincenzo Naso, 2013. "An Insight into the Effect of Advanced Injection Strategies on Pollutant Emissions of a Heavy-Duty Diesel Engine," Energies, MDPI, vol. 6(9), pages 1-21, August.
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