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Investigation of ion current signal in a modern automotive diesel engine.

机译:现代汽车柴油机中离子电流信号的研究。

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摘要

Research is driven towards finding an alternative or extender to the conventional diesel fuel for compression ignition engines. Such alternative fuels have wide ranges of physical and chemical properties which is not suitable for CI engines. Therefore, experimental investigation to understand the effects of different fuels on engine performance, combustion, and emissions are necessary. A complete understanding of ion current signal during heterogeneous diesel combustion has not yet been made. Implementation of ion current signal as a feedback in diesel engines, during all operating conditions needs further research and understanding. This thesis covers the investigation of ion current signal characteristics as well as combustion, auto-ignition and engine out emission characteristics during the operation of modern high speed diesel engine using ULSD. Furthermore, the study covers the effect of using different fuels such as JP-8 and Sasol-IPK on a multi cylinder, direct injection diesel engine. Comparative results of three fuels are presented considering ULSD as a baseline fuel. This work aims to identify the possibility of using jet fuels in a modern automotive diesel engine without any modifications. Ion current signal characteristics during the operation with the three fuels and its correlations with combustion parameters and emissions are presented.
机译:推动研究以寻找用于压缩点火发动机的常规柴油的替代物或增量剂。这样的替代燃料具有宽范围的物理和化学性质,这不适用于CI发动机。因此,需要进行实验研究以了解不同燃料对发动机性能,燃烧和排放的影响。尚未完全理解异质柴油燃烧过程中的离子电流信号。在所有工况下,将离子电流信号作为反馈在柴油机中的实现需要进一步的研究和理解。本文研究了使用ULSD的现代高速柴油机运行过程中离子电流信号特性以及燃烧,自燃和发动机熄火排放特性的研究。此外,研究涵盖了在多缸直喷柴油发动机上使用不同的燃料(例如JP-8和Sasol-IPK)的影响。给出了以ULSD为基准燃料的三种燃料的比较结果。这项工作旨在确定在不做任何修改的情况下在现代汽车柴油机中使用喷气燃料的可能性。介绍了三种燃料在运行期间的离子电流信号特性及其与燃烧参数和排放的相关性。

著录项

  • 作者

    George, Rojan Mathew.;

  • 作者单位

    Wayne State University.;

  • 授予单位 Wayne State University.;
  • 学科 Mechanical engineering.
  • 学位 M.S.
  • 年度 2014
  • 页码 161 p.
  • 总页数 161
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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