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首页> 外文期刊>E3S Web of Conferences >Effects of CNG quantity on combustion characteristics and emissions of a dual fuelled automotive diesel engine
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Effects of CNG quantity on combustion characteristics and emissions of a dual fuelled automotive diesel engine

机译：CNG数量对双燃料汽车柴油发动机燃烧特性及排放的影响

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The paper reveals some experimental aspects of compressed natural gas (CNG) use in dual fuel mode at an automotive diesel engine. Brake specific energetic consumption, incylinder pressure, emissions and variability of indicated mean effective pressure are analysed at operating regime of 2000 rpm and 40% load. Using CNG as an alternative fuel reduces brake specific energetic consumption by 50%, the CO_(2)emission by 10% and sets the in-cylinder maximum pressure 13 bar higher comparative to diesel fuel fuelling. The smoke and hydrocarbons emissions and the variability of indicated mean effective pressure are affected by the injection of compressed natural gas into intake manifold: HC emission grows 24 times, the smoke number and the coefficient of variability of IMEP double their values. The use of compressed natural gas at an automotive diesel engine improves its energetic performances and combustion process, having positive effects on CO_(2)emission and fuel consumption.
机译：本文揭示了在汽车柴油发动机的双燃料模式下压缩的天然气（CNG）的一些实验方面。在2000 rpm和40％负荷的操作制度下分析了制动特殊的能量消耗，提示压力，排放和指示平均有效压力的可变性。使用CNG作为替代燃料将制动器特定的高能量消耗量减少50％，CO_（2）发射10％，并设定缸内最大压力13 BAR比柴油燃料燃料更高的比较。烟雾和碳氢化合物排放和指出的平均有效压力的可变性受到压缩天然气进入进气歧管的影响：HC排放增长24次，烟号和IMEP的可变性系数增加了它们的值。在汽车柴油发动机上使用压缩的天然气可提高其能量性能和燃烧过程，对CO_（2）发射和燃料消耗具有积极影响。

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