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Effect of fuel injection pressure on diesel particulate size and number distribution in a CRDI single cylinder research engine

机译:喷油压力对CRDI单缸研究型发动机中柴油机颗粒尺寸和数量分布的影响

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摘要

Particulate and NOx emissions from diesel engine are the biggest challenges faced in making diesel engines environmentally benign. Measures adopted for reducing gravimetric particulate emission to meet the prevailing emission regulations necessarily always do not reduce particulate number concentration, which has profound adverse health effects. Therefore it is important to investigate effect of fuel injection parameters, especially fuel injection pressure and start of injection timings on particulate size and number distribution in diesel exhaust. In the present study, a single cylinder research engine is used for experimental assessment of the effects of fuel injection strategies and start of fuel injection timing on particulate size-number, surface area, and volume concentration distributions by using engine exhaust particulate sizer (EEPS) spectrometer. Investigations have been conducted at three different fuel injection pressures (300,500,750 bar) and four different start of injection timings. The experimental data indicates that the particulate size-number concentration increases with increasing engine load (BMEP) and it reduces with increasing fuel injection pressure.
机译:柴油机中的颗粒物和NOx排放是使柴油机达到环境友好性所面临的最大挑战。为减少重量颗粒物排放量以符合现行排放法规而采取的措施不一定总是降低颗粒物浓度,这会对健康产生深远的不利影响。因此,重要的是研究燃料喷射参数,特别是燃料喷射压力和喷射正时的开始对柴油机排气中颗粒尺寸和数量分布的影响。在本研究中,单缸研究型发动机用于通过发动机排气微粒分级器(EEPS)对燃料喷射策略和燃料喷射正时开始对微粒尺寸,表面积和体积浓度分布的影响进行实验评估光谱仪。在三种不同的燃油喷射压力(300,500,750 bar)和四种不同的喷射正时开始时进行了研究。实验数据表明,颗粒大小数浓度随发动机负荷(BMEP)的增加而增加,而随燃料喷射压力的增加而减小。

著录项

  • 来源
    《Fuel》 |2013年第5期|84-89|共6页
  • 作者单位

    Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India;

    Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India;

    Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India;

    Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India;

    Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India;

  • 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 exhaust particulate; size-number distribution; gravimetric emissions; fuel injection pressure; injection strategies;

    机译:柴油机废气颗粒;大小-数量分布;重量排放;燃油喷射压力;注射策略;

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