An extensive experimental program has been conducted to evaluate the comparative effects of California Air Resources Board diesel fuel and an ultra-low-sulfur (S) diesel (with and without aftermarket passive filtering devices) on mass emissions of particulate matter (PM) in heavy vehicles. Tests have been performed on 20 Class 8 trucks at two high-mileage levels using two different driving schedules. The design of the test program facilitates the use of mixed-model statistical analysis, which allows more appropriate treatment of the explanatory variables than normally achieved. The analysis suggests that the ultra-low-S diesel fuel yields extremely low mean PM emissions when used in conjunction with a particulate filter, even at high mileage, but that the estimates are highly variable. The high degree of uncertainty, caused at least in part by large vehicle-to-vehicle variation, may obscure the true PM response and adversely impact attainment of increasingly more stringent diesel PM emissions standards in the United States.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Mixed-model statistical analysis of fuel, equipment, mileage, and driving schedule effects on particulate matter emissions from heavy diesel-powered vehicles


    Contributors:


    Publication date :

    2004


    Size :

    11 Seiten, 27 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Analysis of High-Mileage Vehicle Emissions Data From Late-Model, Fuel-Injected Vehicles

    Heirigs, P. L. / Dulla, R. G. / Coordinating Research Council | British Library Conference Proceedings | 1997


    Fuel quality effects on particulate matter emissions from light- and heavy-duty diesel engines

    Den Ouden,C.J. / Clark,R.H. / Cowley,L.T. et al. | Automotive engineering | 1994


    Fuel Quality Effects on Particulate Matter Emissions from Light- and Heavy-Duty Diesel Engines

    Maillard, C. / Den Ouden, C. J. J. / Cowley, L. T. et al. | SAE Technical Papers | 1994


    Fuel Composition Effects on Heavy-Duty Diesel Particulate Emissions

    Wall, J. C. / Hoekman, S. K. | SAE Technical Papers | 1984


    Fuel Composition Effects on Heavy-Duty Diesel Particulate Emissions

    Wall,J.C. / Hoekmann,S.K. / Chevron Fuels,Richmond,California,US | Automotive engineering | 1984