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The Effect of Biodiesel on PAHs, Nitro-PAHs and Oxy-PAHs Emissions from a Light Vehicle Operated Over the European and the Artemis Driving Cycles
Technical Paper
2009-01-1895
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This study examines the effects of neat soy-based biodiesel (B100) and its 50% v/v blend (B50) with low sulphur automotive diesel on vehicle PAH emissions. The measurements were conducted on a chassis dynamometer with constant volume sampling (CVS) according to the European regulated technique. The vehicle was a Euro 2 compliant diesel passenger car, equipped with a 1.9 litre common-rail turbocharged direct injection engine and an oxidation catalyst. Emissions of PAHs, nitro-PAHs and oxy-PAHs were measured over the urban phase (UDC) and the extra-urban phase (EUDC) of the type approval cycle (NEDC). In addition, for evaluating realistic driving performance the non-legislated Artemis driving cycles (Urban, Road and Motorway) were used. Overall, 12 PAHs, 4 nitro-PAHs, and 6 oxy-PAHs were determined. The results indicated that PAH emissions exhibited a reduction with biodiesel during all driving modes. However, some of the nitro- and oxy-PAH compounds were found to increase with biodiesel. The use of pure biodiesel resulted in increases in some of the PAH compounds when compared to B50. PAH emissions were significantly increased during the cold-start UDC phase. Engine operating conditions (load and speed) also affected PAH emissions.
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Authors
- George Karavalakis - National Technical University of Athens
- Stamoulis Stournas - National Technical University of Athens
- George Fontaras - Aristotle University Thessaloniki
- Zissis Samaras - Aristotle University Thessaloniki
- George Dedes - National and Kapodistrian University of Athens
- Evangelos Bakeas - National and Kapodistrian University of Athens
Citation
Karavalakis, G., Stournas, S., Fontaras, G., Samaras, Z. et al., "The Effect of Biodiesel on PAHs, Nitro-PAHs and Oxy-PAHs Emissions from a Light Vehicle Operated Over the European and the Artemis Driving Cycles," SAE Technical Paper 2009-01-1895, 2009, https://doi.org/10.4271/2009-01-1895.Also In
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