共轨柴油机燃用天然气合成油的性能与排放特性

Performance and Emissions Characteristics of a Common Rail Diesel Engine Fuelled with Natural Gas-to-Liquids Fuel

对某共轨柴油机燃用天然气合成油(gas-to-liquids,GTL柴油)和国-Ⅲ柴油进行了动力性、燃油经济性和排放特性研究。结果表明:与国-Ⅲ柴油相比,共轨柴油机燃用GTL柴油时的动力性与国-Ⅲ柴油相当,燃油消耗率降低约4%,GTL柴油的HC、CO、NOx、PM排放分别降低17%、8%、3%、40%,烟度排放降低35%。GTL柴油明显改善柴油机HC和烟度排放,并能同时降低柴油机NOx和PM排放,是一种潜力巨大的低排放柴油清洁代用燃料。

Power performance, fuel economy and emission characteristics of a common rail diesel engine fuelled with natural gas-to-liquids fuel （GTL） and a China-Ⅲ diesel engine were investigated. The results show that the power performance of the engine fuelled with GTL is almost same as that of the China-Ⅲ diesel engine. Compared with the China-Ⅲ diesel engine, the fuel economy and HC, CO, NOx, PM emissions of GTL fueled engine decrease by 4%, 17 %, 8 %, 3 % and 40 % respectively, and smoke reduces by 35 %. Therefore, GTL can reduce engine＇s HC and smoke obviously, at the same time it can reduce PM and NOx emission. GTL is one of promising clean alternative fuels for diesel engine.