The 2007 Diesel particulate matter (DPM) standard of 0.01 g/bhp-hr represents a 90% reduction of the previous standard and corresponds to roughly 100 micrograms (μg) gained on the filter sample used to determine compliance. The factors that influence the accuracy and precision by which this filter can be weighed are analyzed and quantified. The total uncertainty, representing best and typical cases, is between 1 and 5 μg. These uncertainties are used to compute the total uncertainty of the brake specific emission calculation. This uncertainty also depends on flowrate uncertainty, face velocity, and secondary dilution ratio. For a typical case, the total fractional uncertainty is in the range of ∼5 – 70% at 10% of the standard and ∼1 – 10% at 90% of the standard.


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    Titel :

    Uncertainties in Filter Mass Measurements Made to Determine Compliance with the 2007 Diesel PM Standard


    Weitere Titelangaben:

    Sae Int. J. Fuels Lubr
    Sae International Journal of Fuels and Lubricants


    Beteiligte:
    Dikken, David (Autor:in) / Kittelson, David (Autor:in) / Swanson, Jacob (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2009



    Erscheinungsdatum :

    2009-04-20


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    2009-01-1516 Uncertainties in Filter Mass Measurements Made to Determine Compliance with the 2007 Diesel PM Standard

    Swanson, J. / Kittelson, D. / Dikken, D. et al. | British Library Conference Proceedings | 2009


    Factors Influencing Mass Collected During 2007 Diesel PM Filter Sampling

    Kittelson, David / Swanson, Jacob | SAE Technical Papers | 2009


    Factors influencing mass collected during 2007 diesel particulate matter filter sampling

    Swanson,J. / Kittelson,D. / Univ.of Minnesota,US | Kraftfahrwesen | 2009


    2009-01-1517 Factors Influencing Mass Collected During 2007 Diesel PM Filter Sampling

    Swanson, J. / Kittelson, D. / Society of Automotive Engineers | British Library Conference Proceedings | 2009