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文章研究了十六烷值改进剂对乙醇柴油混合燃料的影响。十六烷值改进剂的添加改善了乙醇柴油混合燃料的排放特性。添加了十六烷值改进剂的乙醇柴油混合燃料,排放的碳烟、NOx浓度比燃烧纯柴油时明显减低,且碳烟颗粒物和NOx的排放比相同乙醇含量的乙醇柴油混合燃料有所降低。在最大负荷时,E30+CN混合燃料排放的碳烟和NOx分别比纯柴油低42%和15%,碳烟排放比E30低25%。没有十六烷值改进剂的乙醇柴油混合燃料的HC、CO、乙醇、乙醛排放量与纯柴油相比,均有明显增加,而含有十六烷值改进剂的乙醇柴油混合燃料的HC、CO的排放量比纯柴油低;乙醇、乙醛排放量比没有十六烷值改进剂的乙醇柴油混合燃料低。 相似文献
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In order to minimize the harm caused by the instability of a planing craft, a motion prediction model is essential. This paper analyzed the feasibility of using an MGM(1,N) model in grey system theory to predict planing craft motion and carried out the numerical simulation experiment. According to the characteristics of planing craft motion, a recurrence formula was proposed of the parameter matrix of an MGM(1,N) model. Using this formula, data can be updated in real-time without increasing computational complexity significantly. The results of numerical simulation show that using an MGM(1,N) model to predict planing motion is feasible and useful for prediction. So the method proposed in this study can reflect the planing craft motion mechanism successfully, and has rational and effective functions of forecasting and analyzing trends. 相似文献
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