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On-road Emissions of Conventional and Hybrid Vehicles Running on Neat or Fossil Fuel Blended Alternative Fuels
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 12, 2010 by SAE International in United States
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Fuel consumption is already one of the parameters taken into account for the final ranking of some competitions organized by the Federation International de l'Automobile (FIA). Pollutant emissions, such as CO, HC and NOx, could also be taken into consideration in the near future. In occasion of a competition organized by the FIA in the framework of the “Alternative Energies Cup” championship, several vehicles were equipped for demonstration and scientific purpose with portable emission measurement systems (PEMS) in order to measure the gaseous emissions during the competition. The competition took place at the Autodromo Nazionale of Monza on the same track used for the Formula 1 Grand Prix as well. For this competition the track was divided into three sections simulating respectively the typical speeds and driving patterns on urban roads, on extra-urban roads and on motorways. To be admitted to the competition the vehicles had to use either neat alternative fuels or fossil fuels containing at least 50% of alternative fuels like biofuels. Of the nine vehicles monitored during the competition, four were hybrid vehicles using different fuels (gasoline/ethanol, Compressed Natural Gas-CNG, Liquified Petroleum Gas - LPG, biodiesel), three vehicles were running on natural gas, one running on LPG and one on biodiesel. The Joint Research Centre of the European Commission, in collaboration with Sensors Europe GmbH, provided the instrumentation and the expertise to measure the vehicle emissions during the competition. The data collected were not only used to generate the final ranking of the competition but were also analysed with the purpose of assessing on-road emission performance of some vehicles and fuels, like gaseous ones, that are usually considered environmental friendly by public opinion and even by local/national authorities. The picture emerging from this exercise points out that there is no clean fuel in absolute terms. The emission performance of a vehicle actually depends on a combination of closely intertwined factors as engine technology and settings, after-treatment devices, fuel quality and driving conditions. In addition, on-road emissions resulted in some cases higher than the limits the vehicles had been certified for. In this respect, on-road NOx emissions resulted to be the most critical. Moreover it was demonstrated that bi-fuel cars running on gaseous fuels and equipped with after-market kits improperly tuned may exhibit higher emissions than identical models in their original configuration.
- Giorgio Martini - Joint Research Centre of the European Commission
- Pierre Bonnel - Joint Research Centre of the European Commission
- Urbano Manfredi - Joint Research Centre of the European Commission
- Massimo Carriero - Joint Research Centre of the European Commission
- Alois Krasenbrink - Joint Research Centre of the European Commission
- Oliver Franken - Sensors Europe GmbH
- Lauretta Rubino - Sensors Europe GmbH
- Giorgio Beghella Bartoli - S.I.A.S. Autodromo Nazionale Monza
- Mario Bonifacio - Federation International de l'Automobile
CitationMartini, G., Bonnel, P., Manfredi, U., Carriero, M. et al., "On-road Emissions of Conventional and Hybrid Vehicles Running on Neat or Fossil Fuel Blended Alternative Fuels," SAE Technical Paper 2010-01-1068, 2010, https://doi.org/10.4271/2010-01-1068.
- REGULATION (EC) No 715/2007 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 20 June 2007.
- COMMISSION REGULATION (EC) No 692/2008 of 18 July 2008.
- REGULATION (EC) No 443/2009 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 April 2009.
- Federation Internationale de l'Automobile - Official website - http://www.fia.com.
- Martellucci Leone, Santoro Marco, “MAGICA II Project: Experimental Results Analysis and Electronic Management Optimization”, The 21st Worldwide Battery, Hybrid and Fuel Cell Electric Vehicle Symposium & Exhibition, 2005, Monaco.
- Rubino L., Bonnel P., Hummel R., Krasenbrink A., De Santi G., “PEMS light duty vehicles application: experiences in downtown Milan”, SAE-Na 8th International Conference on Engines for Automobile ICE2007, SAE_NA Paper No. 2007-24-0113, Capri, Sept 2007, Italy.
- Rubino, L., Bonnel, P., Hummel, R., Krasenbrink, A., Manfredi, U., De Santi, G., “On-Road Emissions and Fuel Economy of Light Duty Vehicles using PEMS: Chase-Testing Experiment,” SAE Int. J. of Fuels and Lubricants 1(1):1454-1468, 2008.
- On Vehicle Diesel Emission Analyzer - Semtech D User's manual - Document 9510-064, Revision 3.4. (http://www.sensors-inc.com/).