This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Particulate Emissions of Gasoline Vehicles and Influence of the Sampling Procedure
Technical Paper
2000-01-1137
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
In this paper, we present the results of an experimental study on particulate emissions of gasoline vehicles. The objective of the project was to investigate the particulate emissions on the basis of number and total mass and to gain experience in the influence of the sampling method on the results. The measurements were carried out with three passenger cars at a chassis dynamometer. Two vehicles with premixed combustion and one direct injection engine were tested at constant loads and driving cycles. For the aerosol sampling we used a standard CVS system, an ejector and a rotating disk unit. The samples were analyzed by SMPS and ELPI. Samples for gravimetric analysis were taken downstream of the CVS tunnel and from a mini tunnel.
The results show that all three vehicles produce significantly less particulate in number and mass than a common diesel vehicle. Increased particle emissions were observed for the direct injection vehicle during the driving cycles and for the premixed engines for rich air-fuel equivalence ratios. It was found that the sampling method has a rather high influence on the results of the total number and the number size distribution. The result of the comparison between ELPI and SMPS depends strongly on the particle density, which is in general not known.
Recommended Content
Technical Paper | Diesel Particulate Measurements with a Light Scattering Photometer |
Technical Paper | Sampling Method for Particle Measurements of Vehicle Exhaust |
Authors
Citation
Mohr, M., Forss, A., and Steffen, D., "Particulate Emissions of Gasoline Vehicles and Influence of the Sampling Procedure," SAE Technical Paper 2000-01-1137, 2000, https://doi.org/10.4271/2000-01-1137.Also In
References
- Dockery D. W. et al. “An Association between Air Pollution and Mortality in Six U.S. Cities” The New England J. of Medicine 329 24 1754 1759 1993
- Peters A. et al Am J. Respir. Crit. Care Med. 155 1376 1383 1997
- Knutson E. O. Whitby K.T. “Aerosol Classification by Electric Mobility: Apparatus, Theory, and Applications” Aerosol Sci. 6 443 451 1975
- Keskinen J. Pietarinen K. Lehtimäki M. “Electrical Low Pressure Impactor” J. Aerosol Sci. 23 353 360 1992
- Hueglin Ch. Scherrer L. Burtscher H. “An Accurate, Continuously Adjustable Dilution System (1:10 to 104) for Submicron Aerosols” J. Aerosol Sci. 28 6 1049 1055 1997
- Keskinen J. et al. “Estimation of Effective Density of Diesel Particles” J. Aerosol Sci. 29 1998
- Skillas G. Siegmann K. Baltensperger U. “The Density and Fractal-Like Dimension of Particles Sampled from a Laminar Diffusion Flame” J. Aerosol Sci. 29 1998
- Schweizer Th. Stein H. J. “A New Approach To Particulate Measurement On Transient Test Cycles: Partial Flow Dilution as Alternative to CVS Full Flow Systems” SAE congress 2000-01-1134 1999
- Moisio M. “Real Time Size Distribution Measurement of Combustion Aerosols” Tampere University of Technology Tampere (FIN) 64 74