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Blending Octane Number of Ethanol in HCCI, SI and CI Combustion Modes

机译：在HCCI，Si和CI燃烧模式中混合辛烷值的乙醇

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The effect of ethanol blended with three FACE (Fuels for Advanced Combustion Engines) gasolines, I, J and A corresponding to RON 70.3, 71.8 and 83.5, respectively, were compared to PRF70 and PRF84 with the same ethanol concentrations, these being 2%, 5%, 10%, 15% and 20% by volume. A Cooperative Fuel Research (CFR) engine was used to understand the blending effect of ethanol with FACE gasolines and PRFs in spark-ignited and homogeneous charge compression ignited mode. Blending octane numbers (BON) were obtained for both the modes. All the fuels were also tested in an ignition quality tester to obtain Blending Derived Cetane numbers (BDCN). It is shown that fuel composition and octane number are important characteristics of all the base fuels that have a significant impact on octane increase with ethanol. The dependency of octane number for the base fuel on the blending octane number depended on the combustion mode operated. The aromatic composition in the base fuel, effects blending octane number of the mixture, for fuels with higher aromatic content lower blending octane numbers were observed for ethanol concentration.
机译：将乙醇与三个面（用于先进燃烧发动机的燃料）混合的影响分别与RON 70.3,71.8和83.5分别进行了相同的PRF70和PRF84，具有相同的乙醇浓度，这些是2％， 5％，10％，15％和20％（体积）。使用合作燃料研究（CFR）发动机来了解乙醇与面部汽油和PRF在火花点燃和均匀电荷压缩点火模式中的混合效果。为两种模式获得混合辛烷值（BON）。所有燃料也在点火质量测试仪中进行测试，以获得共混衍生的十六烷值（BDCN）。结果表明，燃料组合物和辛烷值是所有碱燃料的重要特征，对辛烷值的乙醇产生显着影响。辛烷值对混合辛烷值上的基础燃料的依赖性依赖于操作的燃烧模式。对于乙醇浓度，观察到基础燃料中的芳香组合物，混合混合物的混合物的混合物的辛烷值，用于较高的芳族含量下混合辛烷值。

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