Factors influencing mass collected during 2007 Diesel PM filter sampling

Jacob Swanson, David B Kittelson

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

EPA's 2007 Diesel particulate matter (DPM) standard requires a large reduction in total mass emissions. In practice, this amounts to a fractional reduction in elemental carbon emissions. The reduction is balanced by a fractional increase in the semi-volatile component, which is difficult to sample and quantify accurately at low concentrations using filter-based methods. In this work, we show how five imprecisely defined filter-sampling parameters influence the mass collected on a filter. These parameters are: dilution air quality, dilution conditions (dilution ratio and dilution air temperature), particle size classification, filter media and artifacts, and face velocity. Each factor has the potential to change the mass collected by a minimum of 5% of the standard, suggesting there is room for improvement.

Original languageEnglish (US)
Pages (from-to)718-729
Number of pages12
JournalSAE International Journal of Fuels and Lubricants
Volume2
Issue number1
DOIs
StatePublished - Dec 1 2009

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