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首页> 外文会议>Tenth International Conference on Modelling, Monitoring and Management of Air Pollution Jul, 2002 City of Segovia >Dynamometer testing of in-service vehicles using biodiesel and ultra low sulphur diesel
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Dynamometer testing of in-service vehicles using biodiesel and ultra low sulphur diesel

机译：使用生物柴油和超低硫柴油的在役车辆测功机测试

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A study was conducted to compare the performance of diesel-powered vehicles using biodiesel with ultra low sulphur diesel fuel. The study aimed to provide more information about the tailpipe emissions and engine performance of in-service vehicles using biodiesel with different percentages. Three types of biodiesel fuels were tested with blending ratios of 0, 20 and 100% biodiesel/ULSD fuel. The whole study comprised of two parts, namely, a chassis dynamometer exhaust emission test and a diesel lug down test (adopted by the Environmental Protection Department of the Hong Kong Special Administrative Region Government) for each of the vehicle tested. Totally ten vehicles were tested in this study, covering a wide range of makes, types and models. This paper describes the results of the dynamometer testing focusing on the road power and concentration of the exhaust emissions. The result revealed that whilst there was a slight drop in the maximum road power, a significant reduction in smoke emission was found with the use of biodiesel, even for the 20% blend. Since engine exhaust emissions greatly depend on engine conditions and settings, the effectiveness of biodiesel on reduction of gaseous pollutant varies for different type of vehicles. In average biodiesel blends could reduce the carbon monoxide and unburned hydrocarbon but with small increase in the oxides of nitrogen. The effect of biodiesel on the performance and emissions of vehicles increased significantly with an increase in biodiesel content in the fuel.
机译：进行了一项研究，以比较使用生物柴油和超低硫柴油的柴油动力汽车的性能。该研究旨在提供有关使用不同百分比的生物柴油的在役车辆尾气排放和发动机性能的更多信息。测试了三种类型的生物柴油燃料，混合比分别为0％，20％和100％生物柴油/ ULSD燃料。整个研究包括两部分，分别是底盘测功机废气排放测试和柴油机侧气测试（香港特别行政区政府环境保护署采用）。在这项研究中，总共测试了十辆汽车，涵盖了广泛的品牌，类型和模型。本文介绍了功率计测试的结果，重点是道路功率和废气排放的浓度。结果表明，尽管最大道路功率略有下降，但即使使用20％的掺混物，使用生物柴油也能显着减少烟雾排放。由于发动机废气排放很大程度上取决于发动机状况和设置，因此生物柴油在减少气态污染物方面的有效性因不同类型的车辆而异。平均而言，生物柴油混合物可以减少一氧化碳和未燃烧的碳氢化合物，但氮氧化物的增加很少。随着燃料中生物柴油含量的增加，生物柴油对车辆性能和排放的影响显着增加。

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