| 柴油品质对1台典型欧Ⅳ柴油机性能影响的研究 |
| 摘要点击 2728 全文点击 3078 投稿时间：2007-09-05 修订日期：2007-11-15 |
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| 中文关键词 柴油机 柴油品质 排放 燃烧 |
| 英文关键词 diesel engine fuel properties emissions combustion |
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| 中文摘要 |
| 为提出与我国第4阶段排放法规相适应的车用柴油标准，作为北京市“汽车-油品”项目的研究内容之一，在1台满足欧Ⅳ排放法规的柴油机上对不同品质参数的8种柴油进行对比试验.结果表明，柴油品质参数变化对试验用欧Ⅳ柴油机动力性、燃油经济性和缸内燃烧过程影响很小；微粒中的硫酸盐和气态SO2排放量均随硫含量上升而线性增加；十六烷值增加，比油耗和PM排放稍有下降、NOx排放稍有上升；T90下降，NOx排放下降、PM有降低趋势.在试验数据基础上，拟合得到了试验用欧Ⅳ柴油机ESC循环SCR前NOx和PM排放量随柴油硫含量、十六烷值、蒸馏特性T90和芳香烃含量4个参数变化的预测公式. |
| 英文摘要 |
| With the purpose of establishing diesel fuel standard for China National 4th Emission Standard, as one part of Beijing “Auto-Oil” programme, engine performance test has been done on a typical Euro Ⅳ diesel engine using eight diesel fuels with different fuel properties. Test results show that, fuel properties has little effect on power, fuel consumption, and in-cylinder combustion process of tested Euro Ⅳ diesel engine; sulfate in PM and gaseous SO2 emissions increase linear with diesel sulfur content increase; cetane number increase cause BSFC and PM reduce and NOx increase; T90 decrease cause NOx reduce while PM shows trend of reduce. Prediction equations of tested Euro Ⅳ diesel engines ESC cycle NOx and PM emissions before SCR response to diesel fuel sulfur content, cetane number, T90 and aromatics have been obtained using linear regression method on the base of test results. |
