乙醇柴油混合燃料发动机特性研究

在ZS195柴油机上，研究了掺烧比分别为0％、5％、10％、15％和20％的乙醇柴油混合燃料对发动机动力性、经济性及排放特性的影响。结果表明在发动机结构与技术参数不变的条件下燃用混合燃料，动力性能在中小负荷时升高，大负荷时降低；燃油消耗率有所升高；发动机的碳烟排放和NOx排放降低，HC和CO的排放增加。最后，通过模糊综合评价方法得出最佳的乙醇掺烧比为15％。

Study of Ethonal-diesel Engine Performance

The influences of ratio of ethanol 0%,5%,10%,15% and 20% on the engine power,economy and emission have been studied in ZS195 diesel.The test shows when the engine structure and the technical parameters remain unchanged,engine power is stronger in small and medium-sized load and weaker in big load;the fuel consumption is larger,soot and NOX emissions are less;HC and CO emissions are more.As a result of fuzzy comprehensive evaluation method,the best ethanol-blending ratio is 15%.