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Numerical simulation of a direct injection spark ignition engine using ethanol as fuel.

机译:以乙醇为燃料的直喷式火花点火发动机的数值模拟。

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摘要

Numerical simulations have been performed to compare the vaporization and combustion of gasoline and ethanol in a direct injection spark ignition engine. The widely used, open source, computational fluid dynamics KIVA - 3V code has been used for this purpose. A multidimensional look up table of ignition delays has been formulated from a detailed mechanism for ethanol oxidation using CHEMKIN(TM) and has been used to modify the ignition delays predicted by the global one step mechanism used to simulate combustion. The "cold start" phenomenon in ethanol operated engines has been observed in the simulations and various strategies to enhance ethanol vaporization and combustion have been tested. Simulation results indicate that some of the strategies used for emission control and downsizing of gasoline engines may be employed for "improving" combustion in ethanol operated engines.
机译:进行了数值模拟,以比较直喷式火花点火发动机中汽油和乙醇的汽化和燃烧。为此,已广泛使用了开放源代码的计算流体动力学KIVA-3V代码。已经从使用CHEMKIN TM的乙醇氧化的详细机制中制定了点火延迟的多维查找表,并且已将其用于修改由模拟燃烧的全局一步机制预测的点火延迟。在模拟中观察到乙醇操作的发动机中出现“冷启动”现象,并测试了各种提高乙醇蒸发和燃烧的策略。仿真结果表明,一些用于汽油发动机的排放控制和小型化的策略可用于“改善”乙醇发动机的燃烧。

著录项

  • 作者

    Srivastava, Shalabh.;

  • 作者单位

    Michigan State University.;

  • 授予单位 Michigan State University.;
  • 学科 Engineering Mechanical.;Energy.
  • 学位 M.S.
  • 年度 2008
  • 页码 122 p.
  • 总页数 122
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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