重型柴油机燃用天然气合成油的性能与排放

根据在用公交车的特点,在未对发动机进行任何调整的前提下,对在用公交车用重型柴油机燃用天然气合成油(GTL柴油)和0#柴油进行了动力性、燃油经济性及排放特性研究.结果表明:与0#柴油比较,该机燃用GTL柴油的外特性功率、转矩都平均降低约10%;燃油消耗率降低约3%,经济转速区向低转速区移动;GTL柴油的一氧化碳、氮氧化物、颗粒物和二氧化碳排放分别降低9%,14%,25%和4%,碳氢化合物排放基本不变.GTL柴油能同时降低柴油机的氮氧化物和颗粒物排放,是有潜力的低排放柴油清洁代用燃料之一.

Performance and Emission Characteristics of Heavy duty Diesel Engine Fueled with Gas to Liquids

According to the operating characteristics of the in-using buses,a study is made of the power,the fuel economic performance and the emissions characteristics of the numodified heavy-duty bus diesel engine fueled with pure gas-to-liquids (GTL) or diesel 0#.The results show that compared with diesel 0#,the power and torque of GTL-fueled engine decrease by 10% on average,fuel consumption decreases by 3%,the emission of CO,NO x,PM and CO2 reduces by 9%,14%,25% and 4% respectively,but the HC emission remains unchanged.GTL is a promising alternative fuel for diesel engine.