可燃冰混合燃料发动机性能与排放的仿真

Simulation of performance and exhaust emission of an engine fuelled with natural gas hydrate blends

根据中国获得可燃冰样品所测定的原始数据,运用GT-Power仿真软件,建立发动机模型,进行了可燃冰和汽油混合燃料的性能与排放的特性研究。仿真实验中在同一台发动机模型上使用了所设定的6种不同掺混比例的可燃冰和汽油混合燃料,对比分析了使用不同掺混比例混合燃料下发动机的动力性、经济性和排放特性。模拟结果表明:随着混合燃料中可燃冰燃料掺混比例的增加,发动机功率和转矩下降,有效燃油消耗率降低,有效热效率增加。CO排放降低,NO排放无明显变化。

An engine model was built to analyze the properties and emission characteristics of Natural Gas Hydrate （NGH）-gasoline mixture using GT-Power simulation code based on the original data of the NGH sample test in China. Simulations were carried out on the same engine model with mixtures with six different ratios of NGH-gasoline. The engine with different ratios of NGH-gasoline was investigated on properties of power, economy and emission. The results indicate that the engine power, torque and fuel consumption rate decrease, while the engine thermal efficiency increases with increasing ratio of NGH in the mixture fuel. The results also show that the CO emission reduces with the NO emission unobviously changed.