This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Real-Time Measuring System for Engine Exhaust Solid Particle Number Emission - Design and Performance
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2006 by SAE International in United States
Annotation ability available
A prototype solid particle counting system (SPCS) has been developed in Horiba. It measures the engine exhaust solid particle number emissions in real-time. The instrument is designed to follow the recommendation in the PMP proposal for solid particle number emissions measurement on Light-duty diesel vehicles.
Two wide range continuous diluters, which were developed during this project, have been used as cold and hot diluters, respectively. The accuracy of the dilution ratio is normally ± 4% for the designed range. The instrument has low particle losses, and exhibits over 95% penetration for solid particles.
The new instrument has functions such as, normal measurement, dilution ratio control, daily calibration for condensation particle counter (CPC), etc. These functions have been automated to make the instrument's operation simple.
The performance of the instrument was evaluated in different laboratories, and all measured parameters are above the minimum requirements recommended by the PMP. Consistent test results have been obtained.
CitationWei, Q., Oestergaard, K., Porter, S., Ichiro, A. et al., "Real-Time Measuring System for Engine Exhaust Solid Particle Number Emission - Design and Performance," SAE Technical Paper 2006-01-0864, 2006, https://doi.org/10.4271/2006-01-0864.
- Abdul-Khalek, I. S., Kittelson, D. B., Graskow, B. R., Wei, Q., and Brear, F., Diesel exhaust particle size: Measurement issues and trends, SAE, 980525
- Conclusions on improving particulate mass measurement procedures and new particle number measurement procedures relative to the requirements of the 05 series of amendments to regulation No. 83, GRPE-48-11-Rev. 1, 2004
- Ejector manual, Air-Vac Engineering Co, Inc.
- Gormley, P. G., and Kennedy, M., Diffusion of suspended particles from a stream flowing through a cylindrical tube, Pro. Roy. Irish Acad. 52A, 163-169, 1949
- Bergman Hanna, Strom Johan, Laboratory tests of the rotating disc dilutor: calculated and observed dilution ratio, ETH-Conference on Combustion Generated Nanoparticles
- Hinds, W. C., Aerosol technology, properties, behavior, and measurement of airborne particles, 2nd edition
- Hueglin, C., Scherrer, L., and Burtscher, H., An accurate, continuously adjustable dilution system (1:10 to 10000) for submicron aerosols, J. Aerosol Sci., 28/6, 1049 - 1055, 1997
- Khalek, Imad A., Kittelson D. B., and Brear F., Nanoparticle growth during dilution and cooling of diesel exhaust: Experimental investigation and Theoretical Assessment, SAE 2000-01-0515
- Kittelson, D. B., Kadue, P. A., Scherrer, H. C., and Loverien, R. E., Characterization of diesel particles in the atmosphere, CRC, AP-2 project group, March 1988
- Kittelson, D. B. and Johnson J. H., Variability in particle emission measurements in the heavy-duty transient test, SAE 910738
- Kittelson D. B., J. Aerosol Sci., 28: 575-580, 1998
- Manufacturer's website, www.urgcorp.com
- Kasper Markus, The number concentration of nonvolatile-particles - design study for an instrument according to the PMP recommendations, SAE 2004-01-0960
- Ntziachristos, L., Giechaskiel, B., Pistikopoulos, P., and Samaras, Z., Comparative assessment of two different sampling systems for particle emission type-approval measurements, SAE 2005-01-0198, 2005
- Ordinance on the determination of the particle number emission level of passenger cars with compression ignition engines, SAEFL, draft, March 1st, 2004
- Wei Qiang, Dilution systems to simulate engine exhaust dilution in the atmosphere, University of Minnesota, Ph.D. thesis, 2002
- Wei Qiang, Ichiro Asano, Wide range continuous diluter, pending patent, 2005
- Wei Qiang, Ichiro Asano, Adachi Masayuki, Montajir Rahman M., Kusaka Takeshi, and Goto Yuichi, Real-time measuring system for engine exhaust solid particle number emission - Performance and Vehicle tests, SAE 2006-01-0865
- TSI, Model 3025A ultrafine condensation particle counter, Instruction manual, July 2002
- Liu Wei, Osmondson Brian L., Bischof Oliver F., and Sem Gilmore J., Calibration of condensation particle counters, SAE 2005-01-0189
- Wei, Q., Kittelson, D. B., Cao, F., and Dwane, P., Particle losses in ejector, draft paper, 2001
- Wei, Q., Kittelson, D. B., and Watts, W., Single-stage dilution tunnel design, SAE 2001-01-0207, 2001
- Wiedensohler, A., An approximation of the bipolar charge distribution for particles in the submicron size range, J. Aerosol Sci., Vol. 19, NO. 3., pp 387-389, 1988