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The relation between lubricity and electrical properties of low sulfur diesel and diesel/biodiesel blends

机译：低硫柴油和柴油/生物柴油混合物的润滑性与电性能的关系

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摘要

This work evaluates the relation between lubricity and electrical impedance properties of a series of diesel fuel samples with different sulfur content and low sulfur diesel/biodiesel blends. Diesel samples as well as the diesel/biodiesel blends were characterized by standard experimental techniques. In the case of diesel samples, density, nitrogen content and viscosity demonstrate a linear tendency with the composition. Lubricity, measured as WSD (wear scar diameter) does not follow linear behavior with the composition. However, a linear correlation between electrical resistivity and WSD~(-1) was observed which allow the determination of lubricity in diesel mixtures. The addition of 1-10% biodiesel does not change significantly the density and viscosity of the blends. No linear relation of resistivity to lubricity was established. The important effect of lubricity enhancement with addition of approximately only 1% biodiesel was obtained. The relation between lubricity or electrical resistivity and biodiesel addition is quantita-tivelv described bv exDonential function.
机译：这项工作评估了一系列不同硫含量和低硫柴油/生物柴油混合物的柴油样品的润滑性和电阻抗特性之间的关系。柴油样品以及柴油/生物柴油混合物通过标准实验技术进行表征。就柴油样品而言，密度，氮含量和粘度随组成呈线性趋势。以WSD（磨损痕迹直径）衡量的润滑性与组合物的线性行为无关。但是，观察到电阻率与WSD〜（-1）之间存在线性关系，从而可以确定柴油混合物中的润滑性。添加1-10％的生物柴油不会显着改变混合物的密度和粘度。没有建立电阻率与润滑性的线性关系。通过仅添加约1％的生物柴油，获得了润滑性增强的重要效果。润滑性或电阻率与生物柴油添加之间的关系是通过指数函数描述的。

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  • 来源
    《Fuel》 |2014年第ptaa期|26-32|共7页
  • 作者

    Aline Nicolau; Camila V. Lutckmeier; Dimitrios Samios; Mariliz Gutterres; Clarisse M.S. Piatnick;

  • 作者单位

    Laboratory of Instrumentation and Molecular Dynamics, Institute of Chemistry, Federal University of Rio Grande do Sul, Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil,Centro de Combustiveis, Biocombustiveis, Lubrificantes e 6leos (CECOM), Federal University of Rio Grande do Sul, Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil;

    Centro de Combustiveis, Biocombustiveis, Lubrificantes e 6leos (CECOM), Federal University of Rio Grande do Sul, Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil,Programa de Pos-GraduacSo em Engenharia Quimica, Federal University of Rio Grande do Sul, Department of Chemical Engineering, Av. Engenheiro Luiz Englert s-predio12204,CEP 90040-040, Porto Alegre, Brazil;

    Laboratory of Instrumentation and Molecular Dynamics, Institute of Chemistry, Federal University of Rio Grande do Sul, Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil,Centro de Combustiveis, Biocombustiveis, Lubrificantes e 6leos (CECOM), Federal University of Rio Grande do Sul, Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil;

    Programa de Pos-GraduacSo em Engenharia Quimica, Federal University of Rio Grande do Sul, Department of Chemical Engineering, Av. Engenheiro Luiz Englert s-predio12204,CEP 90040-040, Porto Alegre, Brazil;

    Centro de Combustiveis, Biocombustiveis, Lubrificantes e 6leos (CECOM), Federal University of Rio Grande do Sul, Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil,Laboratory of Electrochemistry, Institute of Chemistry, Federal University of Rio Grande do Sul, Av. Bento Goncalves 9500, CEP 91501-970, Porto Alegre, Brazil;

  • 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

    Diesel; Biodiesel; Lubricity; Resistivity; Conductivity;

    机译：柴油机;生物柴油润滑性电阻率电导率;

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