利用放热规律计算研究柴油添加剂对燃烧过程的影响

Investigation of the Effects of Diesel Fuel Additives on Combustion Processes by Calculating Heat Release Rates

为探明柴油添加剂的节油与降烟的作用机理,利用燃烧放热规律计算对纯柴油及加剂柴油的燃烧过程进行了分析对比。结果表明:利用放热规律计算结果可以定性分析燃油添加剂对发动机燃烧过程的影响。并且由示功图及放热率曲线分析比较所得结论与柴油添加剂的节油、降烟效果及其有关助燃机理假说是基本一致的。

To seek the mechanisms of diesel fuel additives for saving fuel and reducing soot density, the combustion processes of pure diesel and those with additives are discussed by comparing the calculating results of the heat release rates. The results show that this method can be used to analyse qualitatively the effects of fuel additives on combustion processes of engines. And the conclusions from the curves of indicator diagrams and the heat release rate curves accord basically with the results of fuel saving and soot density reducing and the hypotheses about the comburant mechanisms of diesel fuel additives.