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Methanol-gasoline Dual-fuel Spark Ignition (DFSI) combustion with dual-injection for engine particle number (PN) reduction and fuel economy improvement

Author

Listed:
  • Liu, Hui
  • Wang, Zhi
  • Long, Yan
  • Xiang, Shouzhi
  • Wang, Jianxin
  • Wagnon, Scott W.

Abstract

To meet the near future emissions legislations of SI (spark ignition) internal combustion engines, this paper presents an experimental study on the M-G DFSI (Methanol-Gasoline Dual-fuel Spark Ignition) combustion for reducing PN (particle number) emissions and improving fuel economy in a high compression ratio gasoline engine. M-G DFSI was operated using port-injection of a highly oxygenated, high latent heat and high octane number fuel to reduce PN emissions and improve fuel economy, direct injection of a high energy density and high volatility fuel to obtain fast load response and high load. The effects of the ratio of methanol to gasoline during DFSI at stoichiometric conditions on PN reduction and fuel economy improvement were investigated. As the proportion of PFI-Methanol increases, the absolute and relative BSFCequivalent improvement in terms of fuel economy will be extended almost linearly. Also, both the nucleation mode and accumulation mode of PN emissions drops dramatically. Furthermore, there is an optimal PFI-methanol mass fraction value to get sufficient fuel economy improvement and PN emissions reduction while reaching the peak performance. It can be shown that Methanol-Gasoline DFSI is a potential combustion strategy to reduce PN emissions effectively and significantly improve fuel economy in practical applications of gasoline engines.

Suggested Citation

  • Liu, Hui & Wang, Zhi & Long, Yan & Xiang, Shouzhi & Wang, Jianxin & Wagnon, Scott W., 2015. "Methanol-gasoline Dual-fuel Spark Ignition (DFSI) combustion with dual-injection for engine particle number (PN) reduction and fuel economy improvement," Energy, Elsevier, vol. 89(C), pages 1010-1017.
    • Handle: RePEc:eee:energy:v:89:y:2015:i:c:p:1010-1017
    DOI: 10.1016/j.energy.2015.06.051
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    References listed on IDEAS

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    1. Liu, Hui & Wang, Zhi & Wang, Jianxin, 2014. "Methanol-gasoline DFSI (dual-fuel spark ignition) combustion with dual-injection for engine knock suppression," Energy, Elsevier, vol. 73(C), pages 686-693.
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    4. Miganakallu, Niranjan & Yang, Zhuyong & Rogóż, Rafał & Kapusta, Łukasz Jan & Christensen, Cord & Barros, Sam & Naber, Jeffrey, 2020. "Effect of water - methanol blends on engine performance at borderline knock conditions in gasoline direct injection engines," Applied Energy, Elsevier, vol. 264(C).
    5. Huang, Yuhan & Surawski, Nic C. & Zhuang, Yuan & Zhou, John L. & Hong, Guang, 2021. "Dual injection: An effective and efficient technology to use renewable fuels in spark ignition engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    6. Chen, Zhanming & He, Jingjing & Chen, Hao & Geng, Limin & Zhang, Peng, 2021. "Experimental study on cycle-to-cycle variations in natural gas/methanol bi-fueled engine under excess air/fuel ratio at 1.6," Energy, Elsevier, vol. 224(C).
    7. Galadima, Ahmad & Muraza, Oki, 2019. "Catalytic thermal conversion of CO2 into fuels: Perspective and challenges," Renewable and Sustainable Energy Reviews, Elsevier, vol. 115(C).
    8. Nuthan Prasad, B.S. & Pandey, Jayashish Kumar & Kumar, G.N., 2020. "Impact of changing compression ratio on engine characteristics of an SI engine fueled with equi-volume blend of methanol and gasoline," Energy, Elsevier, vol. 191(C).
    9. Changchun Xu & Haengmuk Cho, 2021. "Effect of Methanol/Water Mixed Fuel Compound Injection on Engine Combustion and Emissions," Energies, MDPI, vol. 14(15), pages 1-14, July.
    10. Seljak, T. & Katrašnik, T., 2019. "Emission reduction through highly oxygenated viscous biofuels: Use of glycerol in a micro gas turbine," Energy, Elsevier, vol. 169(C), pages 1000-1011.
    11. Fan, Qinhao & Liu, Shang & Qi, Yunliang & Cai, Kaiyuan & Wang, Zhi, 2021. "Investigation into ethanol effects on combustion and particle number emissions in a spark-ignition to compression-ignition (SICI) engine," Energy, Elsevier, vol. 233(C).
    12. Xu, Han & Yao, Anren & Yao, Chunde & Gao, Jian, 2017. "Proper orthogonal decomposition for energy convergence of shock waves under severe knock," Energy, Elsevier, vol. 128(C), pages 813-829.

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