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首页> 外文期刊>Fuel >The impact of various ethanol-gasoline blends on particulates and unregulated gaseous emissions characteristics from a spark ignition direct injection (SIDI) passenger vehicle
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The impact of various ethanol-gasoline blends on particulates and unregulated gaseous emissions characteristics from a spark ignition direct injection (SIDI) passenger vehicle

机译：各种乙醇汽油混合物对火花点火直接喷射（SIDI）乘用车的微粒和不受管制的气体排放特性的影响

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摘要

This study investigated the effects of various ethanol-gasoline blends on the hazardous air pollutants (HAPs) emissions from a wall-guided direct injection passenger vehicle. The fuel economy (FE) as well as regulated and unregulated gaseous emissions was evaluated on a chassis dynamometer using the federal test procedure (FTP-75) mode. Five fuels with varying ethanol contents of E0, E10, E30, E50, and E85 were prepared by blending ethanol into commercial gasoline on a volumetric basis and were analyzed each fuel specification. The engine control schemes of fuel injection quantity for various ethanol blends were adjusted to optimize the engine starting capability, vehicle drivability and emissions performance. The FE of the E85 fueled vehicle decreased by 29% relative to gasoline fuel due to the low energy content of ethanol. Blending ethanol into gasoline produced a dramatic decrease of particulate emission, because pure ethanol has no aromatic compounds and carbon content lower than that of gasoline. As a result, nano-particles were rarely emitted in the vehicle tests of fuels with more than 30% ethanol. Carbonyl compounds emissions, which originate from partial oxidization or incomplete combustion of ethanol, also rose sharply as the ethanol content increased, while volatile organic compound (VOC) emissions were reduced considerably with medium-and high-ethanol formulations due to the lower proportion of aromatic components in these fuels.
机译：这项研究调查了各种乙醇汽油混合物对壁引导式直接喷射乘用车的有害空气污染物（HAP）排放的影响。使用联邦测试程序（FTP-75）模式，在底盘测功机上评估了燃油经济性（FE）以及受管制和不受管制的气体排放。通过将乙醇按体积比例混合到商用汽油中，制备出乙醇含量分别为E0，E10，E30，E50和E85的五种燃料，并分析了每种燃料的规格。调整了各种乙醇混合物的燃油喷射量的发动机控制方案，以优化发动机的启动能力，车辆驾驶性能和排放性能。由于乙醇的能量含量低，E85燃料汽车的FE相对于汽油燃料降低了29％。将乙醇掺混到汽油中可以显着减少颗粒物的排放，因为纯乙醇没有芳族化合物，并且碳含量低于汽油。结果，在含30％以上乙醇的燃料的车辆测试中，很少排放出纳米颗粒。乙醇部分氧化或不完全燃烧引起的羰基化合物排放也随着乙醇含量的增加而急剧增加，而中，高乙醇配方中挥发性有机化合物（VOC）的排放由于芳族化合物的比例降低而大大降低。这些燃料中的成分。

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  • 来源
    《Fuel》 |2017年第1期|702-712|共11页
  • 作者

    Jin Dongyoung; Choi Kwanhee; Myung Cha-Lee; Lim Yunsung; Lee Jongtae; Park Simsoo;

  • 作者单位

    Korea Univ, Sch Mech Engn, 145 Anam Ro, Seoul 02841, South Korea;

    Korea Univ, Sch Mech Engn, 145 Anam Ro, Seoul 02841, South Korea;

    Korea Univ, Sch Mech Engn, 145 Anam Ro, Seoul 02841, South Korea;

    Natl Inst Environm Res, Transportat Pollut Res Ctr, 42 Hwangyong Ro, Incheon 22689, South Korea;

    Natl Inst Environm Res, Transportat Pollut Res Ctr, 42 Hwangyong Ro, Incheon 22689, South Korea;

    Korea Univ, Sch Mech Engn, 145 Anam Ro, Seoul 02841, South Korea;

  • 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

    Ethanol; Gasoline direct injection; Particulate matter; Nano-particle; Aldehyde; Volatile organic compound;

    机译：乙醇;汽油直接注射;颗粒物;纳米颗粒;醛;挥发性有机化合物;

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