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Effect of the fuel injection strategy on the combustion process in a PFI boosted spark-ignition engine

Author

Listed:
  • Merola, Simona S.
  • Sementa, Paolo
  • Tornatore, Cinzia
  • Vaglieco, Bianca M.

Abstract

In this paper, the effect of different fuel injection strategies on the combustion process was investigated in a boosted port fuel injection spark-ignition engine. The experiments were performed on a partially transparent single-cylinder engine, equipped with a four-valve head and boost device. Single and double fuel injection strategies were tested in the open-valve condition. Moreover, two fuel injection pressures were considered. Optical techniques based on 2D-digital imaging were used to follow the flame propagation in the combustion chamber. In particular, the diffusion-controlled flames near valves and on cylinder walls due to the fuel film burning were studied. Two-colour pyrometry was employed to measure soot concentration. In-cylinder optical investigations were correlated to the engine parameters and to the exhaust emissions.

Suggested Citation

  • Merola, Simona S. & Sementa, Paolo & Tornatore, Cinzia & Vaglieco, Bianca M., 2010. "Effect of the fuel injection strategy on the combustion process in a PFI boosted spark-ignition engine," Energy, Elsevier, vol. 35(2), pages 1094-1100.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:2:p:1094-1100
    DOI: 10.1016/j.energy.2009.06.002
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    Citations

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    Cited by:

    1. Soid, S.N. & Zainal, Z.A., 2011. "Spray and combustion characterization for internal combustion engines using optical measuring techniques – A review," Energy, Elsevier, vol. 36(2), pages 724-741.
    2. Song, Jingeun & Kim, Taehoon & Jang, Jihwan & Park, Sungwook, 2015. "Effects of the injection strategy on the mixture formation and combustion characteristics in a DISI (direct injection spark ignition) optical engine," Energy, Elsevier, vol. 93(P2), pages 1758-1768.
    3. da Costa, Roberto Berlini Rodrigues & Rodrigues Filho, Fernando Antônio & Moreira, Thiago Augusto Araújo & Baêta, José Guilherme Coelho & Guzzo, Márcio Expedito & de Souza, José Leôncio Fonseca, 2020. "Exploring the lean limit operation and fuel consumption improvement of a homogeneous charge pre-chamber torch ignition system in an SI engine fueled with a gasoline-bioethanol blend," Energy, Elsevier, vol. 197(C).
    4. Soid, S.N. & Zainal, Z.A., 2014. "Combustion characteristics and optimization of CPG (compressed producer gas) in a constant volume combustion chamber," Energy, Elsevier, vol. 73(C), pages 59-69.
    5. Costa, M. & Marchitto, L. & Merola, S.S. & Sorge, U., 2014. "Study of mixture formation and early flame development in a research GDI (gasoline direct injection) engine through numerical simulation and UV-digital imaging," Energy, Elsevier, vol. 77(C), pages 88-96.
    6. Pastor, J.V. & Bermúdez, V. & García-Oliver, J.M. & Ramírez-Hernández, J.G., 2011. "Influence of spray-glow plug configuration on cold start combustion for high-speed direct injection diesel engines," Energy, Elsevier, vol. 36(9), pages 5486-5496.
    7. Zhang, Zhijin & Zhang, Haiyan & Wang, Tianyou & Jia, Ming, 2014. "Effects of tumble combined with EGR (exhaust gas recirculation) on the combustion and emissions in a spark ignition engine at part loads," Energy, Elsevier, vol. 65(C), pages 18-24.
    8. Irimescu, Adrian, 2011. "Fuel conversion efficiency of a port injection engine fueled with gasoline–isobutanol blends," Energy, Elsevier, vol. 36(5), pages 3030-3035.

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