| 柴油机燃用二甲醚时采用排气再循环降低NOx排放 |
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| 引用本文： | 王贺武,周龙保,蒋德明.柴油机燃用二甲醚时采用排气再循环降低NOx排放[J].西安交通大学学报,2000,34(7):9-11,51. |
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| 作者姓名： | 王贺武 周龙保 蒋德明 |
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| 作者单位： | 西安交通大学,710049,西安 |
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| 基金项目： | 福特 中国研究发展基金资助项目!(9715 6 13)，西安交通大学博士论文基金资助项目 |
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| 摘 要： | 在单缸直喷柴油机上燃用二甲醚和采用排气再循环时，进行了发动机性能和排放的试验研究。结果表明：与燃用柴油相比，发动机燃用二甲醚可以实现无烟燃烧，ＮＯｘ降低３０％，未燃碳氢和ＣＯ２排放有所下降；
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| 关 键 词： | 二甲醚 排放 柴油机 排气再循环 氮氧化物 燃料 |
Reduction of Nitrogen Oxide Emission of Diesel Engine Fueled with Dimethyl Ether by Means of Exhaust Gas Recirculation |
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| Wang Hewu,Zhou Longbao,Jiang Deming.Reduction of Nitrogen Oxide Emission of Diesel Engine Fueled with Dimethyl Ether by Means of Exhaust Gas Recirculation[J].Journal of Xi'an Jiaotong University,2000,34(7):9-11,51. |
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| Authors: | Wang Hewu Zhou Longbao Jiang Deming |
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| Abstract: | Exhaust gas recirculation (EGR) is used to reduce nitrogen oxide emission of a diesel engine fueled with dimethyl ether. Test results show that 30% reduction of nitrogen oxide emission and smokeless combustion can be achieved for dimethyl ether engine without EGR. With increasing in EGR ratio, the engine thermal efficiency can be kept at the same level and the nitrogen oxide emission reduces largely. The unburned hydrocarbon, carbon monoxide and carbon dioxide emissions are increased slightly with creasing in EGR ratio. For a 20% EGR ratio, the nitrogen oxide emission is reduced to 60% of that without EGR. |
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| Keywords: | dimethyl ether emissions diesel engine EGR |
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