摘要
选择5台国六直喷汽油车采用3种不同组分的E10乙醇汽油和1种不含含氧化合物的国Ⅵ汽油,按照国六排放标准开展了WLTC循环测试,研究乙醇和基础油组分对污染物排放的影响规律.结果表明,多数国六直喷汽油车的CO、THC和PM排放有所降低,NOx排放无明显差异,PN排放微增,所有样车的CO、THC和PM平均排放降低为6%、7%和14%.E10乙醇汽油中的重质芳香烃含量增高时,PN排放明显增加,PN排放与PMI指数呈现较强的正相关关系.
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.
作者
杨正军
葛蕴珊
王欣
刘俊女
YANG Zheng-jun;GE Yun-shan;WANG Xin;LIU Jun-nü(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China;China Automobile Technology and Research Center Co.,Ltd.,Tianjin 300300,China;Beijing Vehicle Emission Management Center,Beijing 100176,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2020年第12期5213-5220,共8页
China Environmental Science
基金
国家自然科学基金青年科学基金(51806015)
移动源污染排放控制技术国家工程实验室开放基金(NELMS2018A17)。
