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Phase-based TEOM Measurements Compared with Traditional Filters for Diesel PM
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 03, 2003 by SAE International in United States
Annotation ability available
Collection of diesel exhaust using the Tapered Element Oscillating Microbalance (TEOM) instrument was investigated as an alternative to the traditional method of filter weighing for particulate matter mass determination. Such an approach, if successful, would eliminate considerable manual labor involved in weighing, as well as the delay of hours or days before final results were known. To avoid known artifacts in the second-by-second mode of operation, the TEOM was used in a phase-by-phase mode and was equilibrated with air of constant temperature and humidity before each measurement. Electrically operated valves were used to automate the equilibration and measurement process. The study also included a comparison between two types of TEOM filter - an older type and a new one designed by the TEOM manufacturer for more uniform flow and less flexing. Best results were obtained with the TEOM using the new filter under no-flow conditions. At the 50-mg/mile level of the diesel vehicle used in the study, the TEOM results were on the average 10-15% lower than those from traditional particulate filter weighing. Use of the TEOM appears possible if the systematic offset can be identified and removed. A parallel portion of the study also compared two types of traditional filter - TX40 and T60A20 - and showed that they gave statistically identical results at the PM levels tested.
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CitationPodsiadlik, D., Chase, R., Lewis, D., and Spears, M., "Phase-based TEOM Measurements Compared with Traditional Filters for Diesel PM," SAE Technical Paper 2003-01-0783, 2003, https://doi.org/10.4271/2003-01-0783.
- Federal Register “Control of air pollution from new and in-use motor vehicles and from new and in-use motor vehicle engines; certification and test procedures.” July 1 1992
- Chase R. E. Duszkiewicz G. J. Jensen T. E. Lewis D. Schlaps E. J. Weibel A. T. Cadle S. Mulawa P. “Particle Mass Emission Rates from Current-Technology Light-Duty Gasoline Vehicles.” J. Air & Waste Manage. Assoc. 50 930 935 June 2000
- Federal Register 66 12 January 18 2001 5172 5178
- Okrent David A. “Optimization of a Third Generation TEOM Monitor for Measuring Diesel Particulate in Real-Time.” SAE- 980409
- Peters Annette Dockery Douglas W. Muller James E. Mittleman Murray A. “Increased Particulate Air Pollution and the Triggering of Myocardial Infarction.” Circulation 103 2810 2815 2001
- Jarrett Ronald P. Clark Nigel N. “Evaluation of Methods for Determining Continuous Particulate Matter from Transient Testing of Heavy-Duty Diesel Engines.” SAE 2001-01-3575
- Kittelson David B. Moon Kil Choo Pui David Y. H. “Filter Media for Sampling Diesel Particles.” June 1982
- Maricq M. Matti Chase Richard E. Xu Ning “The effects of the catalytic converter and fuel sulfur level on motor vehicle particulate matter emissions: Light duty diesel vehicles.” Environ. Sci. Technol. 36 283 2002