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首页> 外文期刊>Fuel >Impact of ethanol containing gasoline blends on emissions from a flex-fuel vehicle tested over the Worldwide Harmonized Light duty Test Cycle (WLTC)
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Impact of ethanol containing gasoline blends on emissions from a flex-fuel vehicle tested over the Worldwide Harmonized Light duty Test Cycle (WLTC)

机译：含乙醇汽油混合物对在全球协调轻负荷测试周期（WLTC）中测试的弹性燃料汽车排放的影响

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摘要

Regulated and unregulated emissions from a Euro 5a flex-fuel vehicle tested with nine different hydrous and anhydrous ethanol containing fuel blends at 23 and -7 ℃ over the World harmonized Light-duty vehicle Test Cycle and the New European Driving Cycle, were investigated at the Vehicle Emission Laboratory at the European Commission Joint Research Centre Ispra, Italy. The experimental results showed no differences on the regulated and unregulated emissions when hydrous ethanol blends were used instead of anhydrous ethanol blends. The use of E85 and E75 blends (gasoline containing 85% and 75% of ethanol, respectively) resulted in a reduction of NO_x emissions (30-55%) but increased the emissions of carbon monoxide, methane, carbonyls and ethanol compared to E5, E10 and E15 blends (gasoline containing 5%, 10% and 15% of ethanol, respectively). The increase of the acetaldehyde and ethanol emissions (up to 120% and 350% at 23 ℃ and up to 400% and 390% at -7 ℃, for acetaldehyde and ethanol, respectively) caused a severe increment of the ozone formation potential. Most of the studied pollutants presented similar emission factors during the tests performed with E10 and E15 blends. The emission factors of most unregulated compounds were lower over the NEDC (with ammonia as an exception) than over the WLTC. However, when taking into consideration only the cold start emissions, emission factors over the WLTC were observed to be higher, or similar, to those obtained over the NEDC. Low ambient temperature caused an increase of the emissions of all studied compounds with all tested blends.
机译：在世界协调轻型汽车试验周期和新欧洲行驶周期中，在23和-7℃下，用9种不同的含水和无水乙醇混合燃料测试了Euro 5a弹性燃料车辆的管制和非管制排放，欧盟委员会联合研究中心Ispra的车辆排放实验室，意大利。实验结果表明，当使用含水乙醇混合物代替无水乙醇混合物时，调节排放和未调节排放没有差异。与E5相比，使用E85和E75混合物（汽油分别包含85％和75％的乙醇）可减少NO_x排放（30-55％），但增加一氧化碳，甲烷，羰基和乙醇的排放， E10和E15混合物（汽油分别包含5％，10％和15％的乙醇）。乙醛和乙醇排放量的增加（对于乙醛和乙醇，分别在23℃下分别达到120％和350％，在-7℃下分别达到400％和390％）导致臭氧形成潜能的急剧增加。在使用E10和E15混合物进行的测试中，大多数研究的污染物表现出相似的排放因子。在NEDC上，大多数不受管制的化合物的排放因子均较低（氨除外），而WLTC则较低。但是，仅考虑冷启动排放时，观察到WLTC上的排放因子比NEDC上的排放因子更高或相似。较低的环境温度导致所有测试混合物中所有研究化合物的排放增加。

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  • 来源
    《Fuel》 |2015年第1期|173-182|共10页
  • 作者

    R. Suarez-Bertoa; A.A. Zardini; H. Keuken; C. Astorga;

  • 作者单位

    European Commission, Joint Research Centre (JRC), Institute for Energy and Transport (IET), Sustainable Transport Unit, 21027 Ispra, VA, Italy;

    European Commission, Joint Research Centre (JRC), Institute for Energy and Transport (IET), Sustainable Transport Unit, 21027 Ispra, VA, Italy;

    Process Design Center B.V. (PDC), Catharinastraat 21F, NL-4811 XD Breda, The Netherlands;

    European Commission, Joint Research Centre (JRC), Institute for Energy and Transport (IET), Sustainable Transport Unit, 21027 Ispra, VA, Italy;

  • 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

    Unregulated emissions; Ozone formation potential; Cold start emissions; Hydrous ethanol; Anhydrous ethanol;

    机译：不受管制的排放;臭氧形成潜力;冷启动排放;含水乙醇;无水乙醇;

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