Experimental study on effect of fuel injection strategies and EGR on diesel engine low temperature combustion

Zhi Gang Chai, Fu Jun Zhang, Bo Lan Liu, Ying Huang, Tao Cui, Hong Yun Pan

科研成果: 期刊稿件文章同行评审

4 引用 (Scopus)

摘要

In order to study the effect of fuel injection strategies and EGR rate on diesel engine low temperature combustion performance and emissions, experimental study was carried out on an electronically controlled common rail diesel engine. The result shows that raised EGR rate makes specific heat capacity increase, peak pressure and average temperature in cylinder decrease and ignition delay extend, which leads to lower NOx emissions; but smoke emission rises due to reduced intake oxygen density and oxidation process. At medium and small EGR rates, increasing fuel injection pressure can accelerate the mixing of fuel and air and decrease smoke emission. When the combustion phase CA50 is retarded to after 7° crank angle (ATDC), smoke emission increases because of decreased combustion efficiency and enlarged diffusion combustion period.

源语言英语
页(从-至)45-49 and 55
期刊Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering
37
5
DOI
出版状态已出版 - 15 10月 2016

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Chai, Z. G., Zhang, F. J., Liu, B. L., Huang, Y., Cui, T., & Pan, H. Y. (2016). Experimental study on effect of fuel injection strategies and EGR on diesel engine low temperature combustion. Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering, 37(5), 45-49 and 55. https://doi.org/10.13949/j.cnki.nrjgc.2016.05.008