| 柴油机低温燃烧数值模拟研究 |
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| 引用本文： | 李雪飞,肖合林.柴油机低温燃烧数值模拟研究[J].武汉理工大学学报(信息与管理工程版),2014(3):312-315. |
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| 作者姓名： | 李雪飞 肖合林 |
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| 作者单位： | 武汉理工大学汽车工程学院,湖北武汉430070 |
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| 基金项目： | 教育部博士点科研基金资助项目（20020487022）；国家重点基础研究发展规划基金资助项目（2001CB209207）． |
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| 摘 要： | 运用KIVA软件模拟分析了不同EGR率和喷油提前角对柴油机低温燃烧性能的影响，结果表明，增大EGR（exhaust gas recycling ）率能够有效降低缸内燃烧温度，使NOx 的排放降低，但随着EGR率的增大，柴油机Soot的排放会有一定的升高。晚喷能够更好地实现柴油机低温燃烧方式，使柴油机NOx 和Soot排放同时降低，但喷油时刻过晚，NOx 和Soot的排放会有一定的回升。
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| 关 键 词： | 柴油机 低温燃烧 数值模拟 |
Numerical Simulation Study of Low Temperature Combustion Diesel Engine |
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| LI Xuefei,XIAO Helin.Numerical Simulation Study of Low Temperature Combustion Diesel Engine[J].Journal of Wuhan University of Technology(Information & Management Engineering),2014(3):312-315. |
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| Authors: | LI Xuefei XIAO Helin |
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| Affiliation: | LI Xuefei, XIAO Helin |
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| Abstract: | The influences of different EGR rates and advanced injection angles on low temperature combustion performance of diesel engine were simulated and calculated .Results show that a high EGR rate will efficiently reduce combustion temperature in cylinder and lower NO x emission;but Soot emission of diesel engine will increase with the increase of EGR rate .Late injection can achieve better results to low temperature combustion diesel engine , thus reducing NO x emission and Soot emission at the same time.However, the Soot emission and NO x emission will rebound if fuel injection is too late . |
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| Keywords: | diesel engine low temperature combustion numerical simulation |
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