| 不同EGR率对高密度-低温柴油机燃烧的数值模拟 |
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| 引用本文： | 赵二丽,张玉.不同EGR率对高密度-低温柴油机燃烧的数值模拟[J].汽车科技,2012(1):16-19. |
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| 作者姓名： | 赵二丽 张玉 |
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| 作者单位： | 重庆交通大学交通学院,重庆400074 |
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| 摘 要： | 以4100柴油发动机为研究对象，用fire软件模拟分析不同EGR对高密度一低温柴油机燃烧和性能的影响。结果表明，应用EGR能有效降低NOx的排放，但同时发动机的烟度排放会有一定幅度的上升：EGR率的增加会给柴油机的动力性、燃油消耗率、烟度的排放带来不同程度的负面影响，使柴油机的最大爆发压力及放热率峰值下降。
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| 关 键 词： | 柴油机 EGR 高密度-低温燃烧 数值模拟 |
Numerical Simulation with Low Temperature Diesel Combustion of Different EGR on High Density |
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| ZHAO Er-li,ZHANG Yu.Numerical Simulation with Low Temperature Diesel Combustion of Different EGR on High Density[J].Automobile Science and Technology,2012(1):16-19. |
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| Authors: | ZHAO Er-li ZHANG Yu |
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| Institution: | (School of Traffic and Transport,Chongqing Jiaotong University, Chongqing 400074,China) |
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| Abstract: | To actually 4100 diesel engines as the research object,analysis into the＇ EGR on the high density - low temperature diesel combustion and performance using FIRE.The results show that EGR effectively reduces the NOx emissions at the same time engine FSN rises to a certain extent. The increase of the EGR rate brings negative impacts to engine power,fuel economization and FSN emission,furthermore,as a result of drop of both the maximum explosive pressure and the peak value of the heat release rate. |
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| Keywords: | diesel engine EGR high density-low temperature combustion numerical simulation |
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