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Schlieren visualization of a GDI spray impacting on a heated wall: Non-vaporizing and vaporizing evolutions

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  • Allocca, L.
  • Lazzaro, M.
  • Meccariello, G.
  • Montanaro, A.

Abstract

The DI (Direct Injection) in SI (Spark Ignition) engines is rapidly developing and seems very attractive offering the possibility of multi-mode operation, homogeneous and stratified charge, with valuable benefits respect to conventional PFI (Port Fuel Injection). One of the major drawbacks of the GDI-fueled engine is the impingement of liquid fuel on the combustion chamber walls that generally produces an increasing of HC emissions and detrimental effects on the combustion process, like soot formation in the wall guided engines due to the diffusive combustion of fuel film deposits on the piston head.

Suggested Citation

  • Allocca, L. & Lazzaro, M. & Meccariello, G. & Montanaro, A., 2016. "Schlieren visualization of a GDI spray impacting on a heated wall: Non-vaporizing and vaporizing evolutions," Energy, Elsevier, vol. 108(C), pages 93-98.
    • Handle: RePEc:eee:energy:v:108:y:2016:i:c:p:93-98
    DOI: 10.1016/j.energy.2015.09.107
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    References listed on IDEAS

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    1. 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.
    2. Allocca, Luigi & Mancaruso, Ezio & Montanaro, Alessandro & Sequino, Luigi & Vaglieco, Bianca Maria, 2014. "Evaluation of RME (rapeseed methyl ester) and mineral diesel fuels behaviour in quiescent vessel and EURO 5 engine," Energy, Elsevier, vol. 77(C), pages 783-790.
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    4. Karavalakis, Georgios & Short, Daniel & Vu, Diep & Russell, Robert L. & Asa-Awuku, Akua & Jung, Heejung & Johnson, Kent C. & Durbin, Thomas D., 2015. "The impact of ethanol and iso-butanol blends on gaseous and particulate emissions from two passenger cars equipped with spray-guided and wall-guided direct injection SI (spark ignition) engines," Energy, Elsevier, vol. 82(C), pages 168-179.
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    6. Park, Cheolwoong & Kim, Sungdae & Kim, Hongsuk & Moriyoshi, Yasuo, 2012. "Stratified lean combustion characteristics of a spray-guided combustion system in a gasoline direct injection engine," Energy, Elsevier, vol. 41(1), pages 401-407.
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    Cited by:

    1. Song, Jingeun & Lee, Ziyoung & Song, Jaecheon & Park, Sungwook, 2018. "Effects of injection strategy and coolant temperature on hydrocarbon and particulate emissions from a gasoline direct injection engine with high pressure injection up to 50 MPa," Energy, Elsevier, vol. 164(C), pages 512-522.
    2. Shi, Lei & Ji, Changwei & Wang, Shuofeng & Su, Teng & Cong, Xiaoyu & Wang, Du & Tang, Chuanqi, 2019. "Effects of second injection timing on combustion characteristics of the spark ignition direct injection gasoline engines with dimethyl ether enrichment in the intake port," Energy, Elsevier, vol. 180(C), pages 10-18.
    3. Liu, Yi & Pei, Yiqiang & Wang, Chenxi & Guo, Ruitao & Xu, Bei, 2019. "Characteristics of the deposited fuel liquid film when GDI spray impacts viscous oil film," Energy, Elsevier, vol. 188(C).

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