摘要
在底盘测功机上利用ELPI等设备就甲基环戊二烯三羟基锰(MMT)对轻型汽油缸内直喷(GDI)车辆颗粒(PM)质量/颗粒数量(PN)/多环芳烃(PAHs)等排放的影响进行了研究,试验用油为一种不含MMT的基础油和两种调和油(MMT+基础油),试验车辆为国内外不同厂家生产的三辆轻型GDI车辆。研究发现:汽油中锰浓度由0提高到21.7mg/L,GDI车辆尾气中PN排放呈增加趋势,最大增幅超过一倍;PM中PAHs含量和排放质量显著下降,其中菲排放呈下降趋势,荧蒽排放呈升高趋势。
The effects of MMT on particulate matter（PM） mass and particulate number（PN） as well as polycyclic aromatic hydrocarbons（PAHs） emissions etc. form light-duty GDI vehicle were studied by using ELPI instrument etc. on a chassis dynamometer. The fuels used in the experiment were one base gasoline and two kinds of blend fuel （MMT＋base gasoline）. Three light-duty GDI vehicles made by different OEMs from different countries were used. It was found that the PN from 3 GDI vehicles showed an increasing trend with more than doubled increment and the Mn concentration in gasoline increased from 0 to 21. 7 mg/L. Meanwhile, the PAHs emissions and its fraction in PM decreased dramatically. The PA was on the decline while the FL was on the rise in PAHs.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2016年第1期57-61,共5页
Chinese Internal Combustion Engine Engineering
关键词
内燃机
轻型车
汽油缸内直喷
颗粒数
甲基环戊二烯三羟基锰(MMT)
多环芳烃
IC enginei
light-duty vehicle
gasoline direct-injection
particlenumber
methylcycl-opentadienyl manganese tricarbonyl
polycyclicaromatic hydrocarbons
