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Temporal Evolution of Split-Injected Fuel Spray at Elevated Chamber Pressures

Author

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  • Gang Wu

    (Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China
    State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    These authors contributed equally to this work.)

  • Xinyi Zhou

    (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    These authors contributed equally to this work.)

  • Tie Li

    (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

Abstract

For reducing soot and NOx emissions, an effective method is to apply split injection strategies. In this research, characteristics of split injection were investigated by applying the pilot-main injection strategy and main-post injection strategy. The injection mass of fuel with the two strategies was measured by an in-house fuel injection rate test system based on the Bosch method. The development of spray tip and tail penetrations, as well as the evolvement of the spray angle when applying these two injection strategies, were explored by employing the high speed shadowgraphy at various injection pressures and surrounding gas densities. The results indicate the tail penetration rate of spray has no relation to the fuel injection pressure. However, the increased injection pressure causes a faster penetration development in the spray tip position. It was also found that the spray tip penetration rate of the second spray is slightly slower than that of the first spray at the beginning stage of injection, but it was significantly larger than the first one at the later stage.

Suggested Citation

  • Gang Wu & Xinyi Zhou & Tie Li, 2019. "Temporal Evolution of Split-Injected Fuel Spray at Elevated Chamber Pressures," Energies, MDPI, vol. 12(22), pages 1-23, November.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:22:p:4284-:d:285667
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    References listed on IDEAS

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    Cited by:

    1. Raul Payri & José M. García-Oliver & Victor Mendoza & Alberto Viera, 2020. "Analysis of the Influence of Diesel Spray Injection on the Ignition and Soot Formation in Multiple Injection Strategy," Energies, MDPI, vol. 13(13), pages 1-22, July.
    2. Djati Wibowo Djamari & Muhammad Idris & Permana Andi Paristiawan & Muhammad Mujtaba Abbas & Olusegun David Samuel & Manzoore Elahi M. Soudagar & Safarudin Gazali Herawan & Davannendran Chandran & Abdu, 2022. "Diesel Spray: Development of Spray in Diesel Engine," Sustainability, MDPI, vol. 14(23), pages 1-22, November.

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