Studies have shown that there are a significant number of chemical species present in engine exhaust particulate matter emissions. Additionally, the majority of current world-wide regulatory methods for measuring engine particulate emissions are gravimetrically based. As modern engines considerably reduce particulate mass emissions, these methods become less stable and begin to display higher levels of measurement uncertainty.In this study, a characterization of mass emissions from three heavy-duty diesel engines, with a range of particulate emission levels, was made in order to gain a better understanding of the variability and uncertainty associated with common mass measurement methods, as well as how well these methods compare with each other. Two gravimetric mass measurement methods and a reconstructed mass method were analyzed as part of the present study. The results have shown that each of the mass measurement methods analyzed compare well at higher emission levels, but show significant disparity at the ultra-low emission levels commonly seen from modern diesel engines. Additionally, at ultra-low emissions, the uncertainty in the measurement becomes large, thus reducing confidence in the accuracy of the measurement. Based upon these findings, it would be difficult to justify a comparison between any two gravimetric measurement methods and it may be more appropriate to perform a reconstruction of the particulate mass due to a lower susceptibility to measurement error.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Comparative Study on Various Methods for Measuring Engine Particulate Matter Emissions


    Additional title:

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


    Contributors:

    Conference:

    2008 SAE International Powertrains, Fuels and Lubricants Congress ; 2008


    Published in:

    Publication date :

    2008-06-23


    Size :

    7 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Methods of Measuring Particulate Matter Emissions

    Merkisz, Jerzy / Pielecha, Jacek | Springer Verlag | 2015


    Particulate Matter Emissions during Engine Start-Up

    Merkisz, Jerzy / Pielecha, Jacek | Springer Verlag | 2015


    An analysis of methods for measuring particulate matter mass emissions

    Liu,Z.G. / Berg,D.R. / Schauer,J.J. et al. | Automotive engineering | 2008


    An Analysis of Methods for Measuring Particulate Matter Mass Emissions

    Liu, Z.G. / Berg, D.R. / Schauer, J.J. et al. | British Library Conference Proceedings | 2008


    Methods for reducing raw particulate engine emissions

    RUHLAND HELMUT HANS / LOUVEN GEORG | European Patent Office | 2016

    Free access