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Study on LTC for light duty engines - Part 2-Spray enhancements

机译:轻型发动机LTC的研究-第2部分-喷雾增强

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摘要

This paper presents the 2nd part of a study on low temperature diffusive combustion in a small HSDI (High Speed Direct Injection) engine with the objective of avoiding simultaneously NOx and soot formation, aiming to extend the range of operation conditions where this combustion strategy has been achieved and. Also, it was intended to reduce CO and RC emissions, considered very high in the 1st part of the tests. New hardware configuration was chosen in order to improve air entrainment in the lift-off length such as increasing injection pressure, reducing fuel injection rate and nozzle hole diameter. Also, a parametric study on the behavior of in-cylinder air thermodynamic characteristics towards the diffusion flame low temperature combustion was also carried out in order to evaluate the important aspects of each one and observe how the LTC range has been extended.
机译:本文介绍了小型HSDI(高速直接喷射)发动机中低温扩散燃烧的研究的第二部分,目的是同时避免NOx和烟灰的形成,目的是扩大已经采用这种燃烧策略的工作条件范围。实现了。此外,它还旨在减少在测试的第一部分中认为很高的CO和RC排放。选择了新的硬件配置,以改善提升长度中的空气夹带,例如增加喷射压力,降低燃料喷射速率和喷嘴孔直径。此外,还对气缸内空气热力学特性对扩散火焰低温燃烧的行为进行了参数研究,以评估每个方面的重要方面并观察LTC范围如何扩展。

著录项

  • 来源
    《Fuel》 |2017年第1期|206-219|共14页
  • 作者单位

    Pontificia Univ Catolica Minas Gerais, Av Dom Jose Gaspar 500, Belo Horizonte, MG, Brazil;

    Univ Politecn Valencia, CMT Motores Term, Camino Vera S-N, E-46022 Valencia, Spain;

    Univ Politecn Valencia, CMT Motores Term, Camino Vera S-N, E-46022 Valencia, Spain;

    Univ Politecn Valencia, CMT Motores Term, Camino Vera S-N, E-46022 Valencia, Spain;

  • 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

    LTC; Diffusion-flame combustion; Light duty engine; Diesel engine; Diffusion flame;

    机译:LTC;扩散火焰燃烧;轻型发动机;柴油发动机;扩散火焰;

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