CNG/柴油混烧性能实验研究

An Experimental Investigation of the Diesel Engine Burning with the Mixture of CNG and Diesel.

通过实验,对柴油机掺烧CNG后的经济性、动力性和排放特性进行了对比研究。柴油机掺烧CNG后,动力性有所提高,扭矩贮备系数提高;在中高速时降低碳烟排放幅度很大;热效率降低,经济性变差。说明从提高发动机动力性、降低烟度排放方面考虑,应该掺烧CNG,但是从能量有效利用的角度考虑,必须对发动机的进气系统和燃烧系统改进,以利于有效发挥CNG的优势。试验结果为推广应用CNG/柴油双燃料发动机提供了依据。

In this paper,the power, economical and emission performances of the CNG/Diesel engine are compared with the original engine by experiment.The results indicate that CNG/Diesel engine is better as for the emission and power performances,but is poorer with regard to thermal efficiency.