增压中冷压燃式发动机燃用柴油醇的燃烧和排放

采用助溶剂解决乙醇和柴油相溶性差的问题并配制出柴油醇燃料，在一台增压中冷压燃式发动机循环供油量未作调整情况下，进行了燃用不同乙醇含量柴油醇的燃烧、性能和排放特性试验研究。结果表明：在供油量一致情况下燃用柴油醇，发动机的燃烧特性发生改变，导致性能和排放变化，且随燃料中乙醇含量的增加，变化趋势加剧，尤其小负荷的燃油消耗率及CO、HC排放增加较大。

Combustion and Emissions from a Turbocharged Inter-Cooled CI Engine Fueled with Diesohol

A solubilizer was added to the blend of diesel and ethanol to improve their mutual dissolubility and to prepare the diesohol fuel. Without any adjustment of fuel injection parameters, the experiments were carried out to study its combustion, performance and emissions on a turbocharged inter-cooled CI engine fueled with diesohol fuels with various ethanol concentrations. The results showed that for the same amount of fuel injected, combustion of diesohol would lead to the variations of performance and emissions, and the variation trend was increased with the increase of ethanol concentration, especially reflecting in high increase in fuel consumption, CO and HC emissions at low load conditions.