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Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings

Author

Listed:
  • Márton Virt

    (Department of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary)

  • Gergely Granovitter

    (Department of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary)

  • Máté Zöldy

    (Department of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary)

  • Ádám Bárdos

    (Department of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary)

  • Ádám Nyerges

    (Department of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary)

Abstract

Nowadays, increasingly stricter regulations on emission reduction are inducing rapid developments in combustion science. Low-temperature combustion (LTC) is an advanced combustion technology that increases an engine’s thermal efficiency and even provides low emissions of nitrogen oxides (NO x ) and particulate matter (PM). The technology often uses early direct injections to achieve sufficient mixture homogeneity. This leads to increasing wall wetting and lower combustion efficiency. This paper introduces the Multipulse ballistic injection (MBI) method to improve combustion with early injection timings. The research was carried out in a four-cylinder medium-duty diesel engine with high-pressure exhaust gas recirculation (HP-EGR). The investigation was divided into two experiments. In the first experiment, MBI was examined without EGR, and in the second, EGR was applied to study its effects. It was found that the MBI strategy decreased wall wetting and increased homogeneity and the indicated mean effective pressure (IMEP) at early injection angles.

Suggested Citation

  • Márton Virt & Gergely Granovitter & Máté Zöldy & Ádám Bárdos & Ádám Nyerges, 2021. "Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings," Energies, MDPI, vol. 14(13), pages 1-17, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3727-:d:579492
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    References listed on IDEAS

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    1. Bendu, Harisankar & Murugan, S., 2014. "Homogeneous charge compression ignition (HCCI) combustion: Mixture preparation and control strategies in diesel engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 38(C), pages 732-746.
    2. Li, Jing & Yang, Wenming & Zhou, Dezhi, 2017. "Review on the management of RCCI engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 65-79.
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    Cited by:

    1. Márton Virt & Máté Zöldy, 2024. "Enhancing the Viability of a Promising E-Fuel: Oxymethylene Ether–Decanol Mixtures," Energies, MDPI, vol. 17(6), pages 1-17, March.

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