Problems of Partial Sample Systems for Modal Raw Exhaust Mass Emission Measurement 2003-01-0779
Changing of emission levels leads to an increasing demand for a satisfying solution to measure mass emissions of motor vehicles on both, engine and chassis dynamometers. Partial flow systems may fit to the demands. These systems require an exact determination of exhaust volume flow and time aligned concentration measurement. This paper will address these issues and problems related with partial flow sampling. Several exhaust flow measurement systems have been studied and integrated mass results have been checked against the full flow CVS. As the investigations indicate, modal mass calculation from sampling direct exhaust at the end of tailpipe is feasible but not a satisfying solution in equivalency and repeatability in comparison to CVS-results. This is especially the case on emission levels near or below ULEV.
Citation: Thiel, W., Hornreich, C., Mörsch, O., and Seifert, G., "Problems of Partial Sample Systems for Modal Raw Exhaust Mass Emission Measurement," SAE Technical Paper 2003-01-0779, 2003, https://doi.org/10.4271/2003-01-0779. Download Citation
Author(s):
W. Thiel, C. Hornreich, O. Mörsch, G. E. Seifert
Affiliated:
BMW AG
Pages: 15
Event:
SAE 2003 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Emission Measurement & Testing 2003-SP-1757, Combustion & Emission Control for SI Engines-PT-121, SAE 2003 Transactions Journal of Fuels and Lubricants-V112-4
Related Topics:
Emissions measurement
Exhaust emissions
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