The University of Minnesota (UMN) group measured the aerosol size distributions in the plume of diesel trucks under realistic on-road driving conditions. During a typical test, the UMN mobile lab followed a truck (e.g., truck 61) at a distance ranging from 15 to 60 m from the back of the cab or trailer depending upon the specific test condition. The sampling boom of the lab was kept in the truck plume and bag samples were collected for analysis by the Scanning Mobility Particle Spectrometer (SMPS). Tests were conducted at idle, 55-mph, 40-55 mph acceleration, and 55-45 mph deceleration. For the cruise, acceleration and deceleration the tests were conducted when the truck was configured with and without load. For all conditions two fuels were evaluated: a market basket blend California fuel and an EPA certification fuel.


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    Title :

    Lifetimes of Ultrafine Diesel Aerosol


    Contributors:
    K. Capaldo (author) / S. Pandis (author)

    Publication date :

    2001


    Size :

    24 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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