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Dual-Fuel Spark Ignition (DFSI) combustion fuelled with different alcohols and gasoline for fuel efficiency

机译：采用不同酒精和汽油的双燃料火花点火（DFSI）燃烧可提高燃料效率

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摘要

This paper investigates an experimental study of Alcohols-gasoline Dual-Fuel Spark Ignition (DFSI) Combustion for knock suppression and high fuel efficiency using a gasoline engine with high compression ratio. Alcohols-gasoline DFSI is organized using a port-fuel-injection (PFI) of high oxygenated, high latent heat and high octane number fuel to suppress knock and a direct injection (DI) of high energy density and high volatility fuel to extend high load. Systematical comparison about the effect of stoichiometric M-G (PFI-Methanol and DI-Gasoline), E-G (PFI-Ethanol and DI-Gasoline), E85W15-G (PFI-15% water and 85% ethanol and DI-Gasoline) and G-G (PFI-Gasoline and DI-Gasoline) DFSI on engine knock suppression was conducted. For each test, the percentage of PFI-Alcohol was varied from 0% to 100%. The effects of these combustion modes on knock-limit extension, fuel economy, and combustion characteristics were investigated. Alcohols-gasoline DFSI is a potential approach of using alternative alcohol fuels in practical gasoline engines with significant improvement in engine efficiency and knock suppression. M-G DFSI exhibits better anti-knock performance and achieves higher fuel efficiency than other combustion modes. (c) 2015 Elsevier Ltd. All rights reserved.
机译：本文研究了使用高压缩比的汽油发动机对汽油/汽油双燃料火花点火（DFSI）燃烧进行爆震抑制和高燃油效率的实验研究。酒精汽油DFSI通过使用高氧化，高潜热和高辛烷值燃料的港口燃料喷射（PFI）来组织，以抑制爆震，并通过高能量密度和高挥发性燃料的直接喷射（DI）来扩展高负荷。系统比较化学计量的MG（PFI-甲醇和DI-汽油），EG（PFI-乙醇和DI-汽油），E85W15-G（PFI-15％的水和85％乙醇和DI-汽油）和GG（进行了抑制发动机爆震的PFI-汽油和DI-汽油）DFSI。对于每个测试，PFI酒精的百分比从0％到100％不等。研究了这些燃烧模式对爆震极限扩展，燃油经济性和燃烧特性的影响。酒精汽油DFSI是在实际汽油发动机中使用替代酒精燃料的一种潜在方法，可显着提高发动机效率和抑制爆震。与其他燃烧模式相比，M-G DFSI具有更好的抗爆性能，并具有更高的燃油效率。 （c）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Fuel》 |2015年第1期|255-260|共6页
  • 作者

    Liu Hui; Wang Zhi; Long Yan; Wang Jianxin;

  • 作者单位

    Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China;

    Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China;

    Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China;

    Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Alcohols-gasoline combustion; Dual-Fuel Spark Ignition; Engine knock; Port fuel injection and direct injection (PIDI);

    机译：酒精汽油燃烧;双火花点火;发动机爆震;进气口燃油喷射和直接喷射（PIDI）;

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