车用发动机
車用髮動機
차용발동궤
2014年
4期
55-59
,共5页
赵伟%陆红雨%付铁强%王玉伟%刘乐%张仲荣
趙偉%陸紅雨%付鐵彊%王玉偉%劉樂%張仲榮
조위%륙홍우%부철강%왕옥위%류악%장중영
轻型汽车%非常规污染物%温度%行驶里程%测试循环
輕型汽車%非常規汙染物%溫度%行駛裏程%測試循環
경형기차%비상규오염물%온도%행사리정%측시순배
light-duty vehicle%non-conventional pollutant%temperature%mileage%test cycle
联合使用MEX-7200和FTIR对轻型车进行了非常规污染物测试,研究了温度、行驶里程、驾驶循环等因素对 HCHO ,1,3-C4 H6,C6 H6和C7 H8等非常规排放物的影响。结果表明:非常规污染物排放主要集中在发动机起动后的前100 s内,C7 H8排放量最大,HCHO排放量最小;低温以及行驶里程增加均会造成非常规污染物的升高,其中-7℃条件下 HCHO ,1,3-C4 H6,C6 H6以及C7 H8等排放量相比室温条件下增加了7.3~11.6倍;随里程增加,C7 H8增幅最为明显,排放量最高达8 mg/km ,但C6 H6与1,3-C4 H6的排放量变化较为平缓,保持在2~4 mg/km。
聯閤使用MEX-7200和FTIR對輕型車進行瞭非常規汙染物測試,研究瞭溫度、行駛裏程、駕駛循環等因素對 HCHO ,1,3-C4 H6,C6 H6和C7 H8等非常規排放物的影響。結果錶明:非常規汙染物排放主要集中在髮動機起動後的前100 s內,C7 H8排放量最大,HCHO排放量最小;低溫以及行駛裏程增加均會造成非常規汙染物的升高,其中-7℃條件下 HCHO ,1,3-C4 H6,C6 H6以及C7 H8等排放量相比室溫條件下增加瞭7.3~11.6倍;隨裏程增加,C7 H8增幅最為明顯,排放量最高達8 mg/km ,但C6 H6與1,3-C4 H6的排放量變化較為平緩,保持在2~4 mg/km。
연합사용MEX-7200화FTIR대경형차진행료비상규오염물측시,연구료온도、행사리정、가사순배등인소대 HCHO ,1,3-C4 H6,C6 H6화C7 H8등비상규배방물적영향。결과표명:비상규오염물배방주요집중재발동궤기동후적전100 s내,C7 H8배방량최대,HCHO배방량최소;저온이급행사리정증가균회조성비상규오염물적승고,기중-7℃조건하 HCHO ,1,3-C4 H6,C6 H6이급C7 H8등배방량상비실온조건하증가료7.3~11.6배;수리정증가,C7 H8증폭최위명현,배방량최고체8 mg/km ,단C6 H6여1,3-C4 H6적배방량변화교위평완,보지재2~4 mg/km。
The non-conventional pollutants of light-duty vehicle were measured by the MEXA-7200 and FTIR and the influ-ences of temperature ,mileage and driving cycle on HCHO ,1 ,3-C4 H6 ,C6 H6 and C7 H8 were researched .The results showed that the non-conventional pollutants emitted mainly in the first 100 s period since engine start ,during which the emission of C7 H8 and HCHO is the most and the least respectively .Low temperature and mileage increase both led to the increase of non-conventional pollutants .Wherein at -7 ℃ ,the emissions of HCHO ,1 ,3-C4 H6 ,C6 H6 and C7 H8 increased by 7 .3-11 .6 times . With the increase of mileage ,the emission of C7 H8 increased remarkably and its peak reached 8 mg/km ,but the emissions of C6 H6 and 1 ,3-C4 H6 hardly changed and always kept in the range of 2-4 mg/km .