Major part of the research work on particulate emissions has been carried out at normal ambient temperature (about +23 'C). In real life, the average day temperatures, especially in the winter season, are far below the 'normal' temperature of the exhaust emission test procedures. For many years, it has been obvious that the knowledge of the total particulate mass emissions is not enough. Quality of these particles, e.g. polyaromatic hydrocarbon content and mutagenicity, has been studied. Now there is also a need to gain more information on fine particles, which can penetrate lungs more easily. International Energy Agency's Committee on Advanced Motor Fuels sponsored this study of the possible effect of ambient temperature on particle emissions. Also aldehydes and speciated hydrocarbons were studied. Several different engine and fuel technologies were covered, including gaseous fuels and biodiesel. Research work focused on light-duty technologies. Test vehicles were as follows: two diesel cars (direct and indirect-injection), stoichiometric gasoline fuelled car (multi-port-fuel-injection), direct-injection gasoline car, Flexible Fuel Vehicle running with E85 fuel, CNG and LPG cars. Four diesel fuel qualities were studied: European grade diesel fuel (EU2000), a blend of this fuel and 30% rape seed methyl ester (RME30), Swedish Environmental Class 1 fuel (RFD) and a blend of this fuel and 30% RME (RFDIRME). The effect of temperature was dependent on the engine technology. Significant increase in particle mass and number emissions was seen with some technologies when -7 'C temperature was compared to normal test temperature. Some engine technologies were rather insensitive to ambient temperature, e.g. CNG car did not show any significant particle emission at normal or low temperatures. If an increase in particle emissions was seen, it typically appeared immediately after the cold start. With the warmed-up engine the particle emissions were mainly at the same level at normal and low temperatures. In some cases RME indicated more particles and/or a shift to lower mean diameter at low temperatures after the cold start than in the tests at normal temperature.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Particle emissions at moderate and cold temperatures using different fuels


    Contributors:
    Aakko, P. (author) / Nylund, N.O. (author)


    Publication date :

    2003


    Size :

    18 Seiten, 18 Bilder, 4 Tabellen, 8 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Particle emissions at moderate and cold temperatures using different fuels

    Aakko,P. / Nylund,N.O. / VTT Processes,FI | Automotive engineering | 2003


    Particle Emissions at Moderate and Cold Temperatures Using Different Fuels

    Nylund, Nils-Olof / Aakko, Päivi | SAE Technical Papers | 2003


    Particle Emissions at Moderate and Cold Temperatures Using Different Fuels

    Aakko, P. / Nylund, N.-O. / Society of Automotive Engineers | British Library Conference Proceedings | 2003


    Particle emissions from ships : measurements on exhausts from different marine fuels

    Zetterdahl, Maria / Chalmers tekniska högskola | TIBKAT | 2016


    Particle emissions from a 2009 gasoline direct injection engine using different commercially available fuels

    Khalek,I.A. / Bougher,T. / Jetter,J.J. et al. | Automotive engineering | 2010