摘要

To determine the effects of ethanol and fuel components on the exhaust emissions, five China-6 compliant GDI vehicles fueled with three E10 ethanol-gasoline with different compositions and one non-oxygenated China-6 gasoline were tested over the WLTC. The results indicated that burning E10 reduced CO by 6%, THC by 7%, and PM by 14%, but caused a slight increase in PN with mostly equal NOx. When the contents of heavy aromatic hydrocarbons in E10 ethanol-gasoline increased, PN emissions increased markedly, PN emissions also showed a strong positive correlation with the PMI index.