二元煤基燃料柴油机的NOx和PM排放研究

通过发动机台架试验研究了F-T柴油引燃甲醇在柴油机上的NOx和PM排放以及二者之间的平衡问题。结果表明：柴油机燃用二元煤基燃料较F-T柴油NOx和PM排放最高降低45.8%和41.2%；0.30MPa和0.60MPa，1600r/min时，NOx排放较低；PM排放在2000r/min下最低，在1200r/min下最高；0.45MPa，1200r/min和2000r/min时，供油时刻为20°CA BTDC附近可以得到较低的PM排放和较低NOx排放，而在1600r/min下二者出现tread-off关系。F-T柴油引燃甲醇在柴油机上可以同时有效降低NOx和PM排放。

Study on NOx and PM Emissions of Dual Coal Fuels in Diesel Engine

NOx and PM emissions and balance problems of F-T diesel fuel igniting methanol Diesel engine was studied by engine bench test.The results show that diesel engine fueled with dual coal fuels has a lower NOx and PM emission level by 45.8% and 41.2% highest than fueled with F-T ,NOx has a lower level than others under 1600r/min of 0.30MPa and 0.60MPa,PM is lowest under 2000r/min and highest under 1200r/min,both lower NOx and lower PM can be obtained near 20°CA BTDC under 1200r/min and 2000r/min of 0.45MPa,but there appears tread-off relationship of NOx and PM under1600r/min.NOx and PM can be effectively reduced in a diesel engine by F-T diesel fuel igniting methanol.