A 25 passenger cars sample was selected on the basis of a 2001 year French fleet prediction. Various types of vehicle technologies, i.e. diesel and petrol cars both equipped with or without catalyst, were tested on a chassis dynamometer with constant volume sampling for regulated emissions and individual Volatile Organic Compounds (VOC) determination. A particular emphasis has been placed on toxic and/or photochemically reactive compounds such as benzene, formaldehyde, acetaldehyde and 1,3-butadiene. Driving cycles do not seem to influence volatile organic compounds composition for a specific non-catalyst car either petrol or diesel. On the other hand, strong variations were observed for catalyst cars. Carbonyl compounds represent the major part of dieselhydrocarbon emissions (approximately 30 % w/w) but only a minor portion for petrol cars (approximately 5 % w/w). Catalyst diesel and three-way catalyst petrol cars total hydrocarbons mass emissions were the lowest and about 40 times lower than conventional petrol cars.
Real-world driving speciated VOC hot start emissions of the 2001 French passenger car fleet
Kohlenwasserstoffemissionen der französischen Pkw-Flotte des Jahres 2001
International Journal of Vehicle Design ; 27 , 1-4 ; 140-149
2001
10 Seiten, 3 Bilder, 5 Tabellen, 13 Quellen
Article (Journal)
English
Real-world driving speciated VOC hot start emissions of the 2001 French passenger car fleet
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