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Detailed Chemical Composition and Particle Size Assessment of Diesel Engine Exhaust
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 21, 2002 by SAE International in United States
Annotation ability available
A dilution source sampling system has been incorporated into the exhaust measurement system of a research single-cylinder diesel engine. To allow more detailed assessment of the individual chemical components of the diesel particulate matter (PM) the exhaust dilution system includes a residence time chamber (RTC) to allow for residence times of 30 to 60 seconds in the second stage of dilution before sampling.
Samples are collected on a range of different filters where mass loading, elemental and organic carbon (ECOC), trace metals, sulfate ions (SO4), particle-phase organic compounds, and semi-volatile organic compounds are evaluated. In addition, particle size distributions have been determined using a scanning mobility particle sizer (SMPS).
Results show that the chemical composition of the particulate matter is highly dependent on the engine operating conditions. There is a dramatic shift in the ratio of elemental carbon to organic compounds and in the sulfate ions (SO4) and trace metals when the engine is traversed across a load and speed range. Similarly there is a shift in the particle size range for which there is virtually no impact on the mass loading.
- Chol-Bum Kweon - Engine Research Center Department of Mechanical Engineering University of Wisconsin-Madison
- David E. Foster - Engine Research Center Department of Mechanical Engineering University of Wisconsin-Madison
- James J. Schauer - Wisconsin State Laboratory of Hygiene Environmental Chemistry and Technology Program University of Wisconsin-Madison
- Shusuke Okada - Yanmar Company Ltd.
CitationKweon, C., Foster, D., Schauer, J., and Okada, S., "Detailed Chemical Composition and Particle Size Assessment of Diesel Engine Exhaust," SAE Technical Paper 2002-01-2670, 2002, https://doi.org/10.4271/2002-01-2670.
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