This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Compound Injection to Assure the Performance of Motor Vehicle Emissions Sampling Systems
Annotation ability available
Sector:
Language:
English
Abstract
There are many sources of variability when sampling motor vehicle emissions, including intermittant losses to “wetted” sampling system surfaces if water condensation occurs and thermal decomposition if sampling system surfaces get excessively hot. The risk of losses varies during typical transient speed emissions tests and depends upon many variables such as temperature, pressure, exhaust dilution ratio, dilution air humidity, fuel composition, and emissions composition. Procedures are described for injection of known concentrations of compounds of interest into transient motor vehicle exhaust for the purpose of characterizing losses between the vehicle tailpipe and emissions analyzer.
Authors
- Fred Stump - U.S. Environmental Protection Agency
- Silvestre Tejada - U.S. Environmental Protection Agency
- Frank Black - U.S. Environmental Protection Agency
- William Ray - U.S. Environmental Protection Agency
- William Crews - ManTech Environmental Technology, Inc.
- Radford Davis - ManTech Environmental Technology, Inc.
Topic
Citation
Stump, F., Tejada, S., Black, F., Ray, W. et al., "Compound Injection to Assure the Performance of Motor Vehicle Emissions Sampling Systems," SAE Technical Paper 961118, 1996, https://doi.org/10.4271/961118.Also In
References
- Black, F. M. Snow, R. “Constant Volume Sampling System Water Condensation,” SAE Paper #940970, International Congress Detroit, MI February 1994
- Federal Register “Test for Determining the Quantity of Alcohol in Gasoline,” 54 54 11903 11907 Mar. 22 1989
- Neville, A. M. Kennedy, J. B. “Basic Statistical Methods for Engineers and Scientists,” 252 286 International Textbook Company Scranton, PA 1964