在用柴油公交车燃用天然气合成油的试验研究

Experimental Research of In-Use Diesel Bus Fueled by Gas-to-Liquid Fuel

对上海在用柴油公交车燃用天然气合成油和国Ⅱ柴油的经济性、动力性及烟度排放进行了试验研究。结果表明,柴油公交车燃用天然气合成油后,其燃油经济性与同路线柴油公交车燃用国Ⅱ柴油时基本相当;最大轮边功率降低约5%;加载减速法规的100%点、90%点和80%点的烟度分别降低71%、73%和63%。即天然气合成油对柴油公交车的燃油经济性和动力性影响不大,且能显著改善烟度排放,完全满足上海市在用车加载减速法规的限值要求。

Experimental research on fuel economy,power and smoke emission performances of gas-to-liquid （GTL） fuel and conventional diesel fueled in-use diesel bus were carried out.The experimental results showed that the fuel economy of GTL fueled in-use bus was almost the same with conventional diesel,the maximum wheel end power reduced by about 5 %,its lug-down smoke emission on 100 %,90 % and 80 % points reduced 71%,73 %,and 63 % respectively. Therefore,GTL fuel had little influence on fuel economy and power performance of diesel bus,but had notable improvement of its smoke emission, and could meet the requirements of shanghai＇s regulation limit.