Community Research and Development Information Service - CORDIS


Particulate emissions from vehicles, especially from diesel-driven vehicles, are studied in order to evaluate the effects of technological engine improvements or new fuel formulations. These effects can be changes in total mass emissions, in mass/size or number/size distributions, in chemical composition and in health effects. Results of measurements performed to study the following items are shown in the report:

-The interaction between fuels and fuel injection systems. Two similar diesel-driven vehicles, one with a standard fuel injection pump, and one with common rail system were tested together with a standard fuel and a clean low sulphur and low aromatics fuel.

-The importance of measurement method and sampling position. Particulate matter was measured as total mass concentration collected in a filter, as mass/size distribution sampled with low pressure impactors in the undiluted exhaust gas at the exhaust pipe exit and after dilution in the CVS tunnel, and as number/size distribution with an SMPS after dilution in the CVS tunnel.

In conclusion it can be said that the low sulphur and low aromatics fuel reduced the particle total mass emission significantly with no significant change in the particle mass and number size distributions. Observed changes in particle distributions depend in a complex way on the combination of fuel injection technology, mode of operation, fuel specification and measuring method.

Additional information

Authors: KRASENBRINK A, DLR-IVF, Berlin (DE);HUMMEL R, JRC, Air Quality Unit, Ispra (IT);DILARA P, JRC, Air Quality Unit, Ispra (IT)
Bibliographic Reference: EUR 19914 EN (2001), pp. 43. Euro: Free of charge
Availability: Available from JRC Information & Public Relations Unit, European Commission. Fax: +32-2-2996322 and JRC Information & Public Relations Unit, Ispra (IT) Fax: +39-0332-785409
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