The three test conditions, secondary dilution ratio (SDR), filter face velocity (FFV), and filter media, had a major effect on the resulting PM deposition. Both PM systems showed similar trends across tests with like testing conditions. It was determined that the 2007 CFR compliant PM system was capable of producing repeatable results with a common coefficient of variation (CV) of less then 2%, across a range of moderate SDRs, FFVs, and certain filter medias. Both Teflo and Tx40 filters produced efficient and repeatable results and are recommended with SDRs of 1/1 to 2/1 with FFVs between 1.0 and 1.5 cfm for future work with the WVU 2007 compliant PM collection system.2.4.3 Ford Motor Company a Matti Maricq, Ph.D. Maricq presented the 2007 Exhaust Composition and Sampling Artifacts research at the 2003 ... By exploring the problems encountered in PM filtration, an appropriate test plan was formed.
|Title||:||Analysis of a 2007 EPA Compliant Diesel Particulate Matter Sampling System|
|Author||:||Robin W. Ames|
|Publisher||:||ProQuest - 2007|