This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Development of an On-Board Instrument for On-Road Diesel Particulate Measurement
Technical Paper
2008-36-0273
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The on-board transient response diesel particulate measurement (OBS-TRPM) instrument measures on-road vehicle particulate emissions. It is a continuation of the Horiba on-board PM sampler (OBS-PM) [5].
The OBS-TRPM measures total diesel particulate emission by collecting diesel particulate matter (PM) on a pre-weighed 47 mm filter while the partial flow sample system (OBS-PM) runs under a proportional control strategy. A real-time diffusion charge sensor (DCS) takes sample upstream of the filter, and measures diesel PM in term of particle length (mm/cm3). By integrating the DCS real-time signal during the filter sampling, the cumulative fraction of diesel PM emission is obtained. Finally, diesel PM mass emission during a specific region, for example a Not-to-Exceed (NTE) zone, is calculated from the fraction of the real-time PM signal. Thus, the OBS-TRPM provides a solution to measure PM emission in NTE zones which are defined by the US EPA.
The performance of the instrument was evaluated on a 1998 VW beetle diesel vehicle and a 1999 Ford Windstar gasoline vehicle. The NEDC (new European drive cycle) was operated for both vehicles. Results show that the OBS-TRPM measures total exhaust PM; in the meantime, the PM emission from each segment can be calculated from the cumulative fraction of the particle length concentration measured by the DCS.
Recommended Content
Authors
Citation
Wei, Q., Akard, M., Porter, S., and Nakamura, H., "The Development of an On-Board Instrument for On-Road Diesel Particulate Measurement," SAE Technical Paper 2008-36-0273, 2008, https://doi.org/10.4271/2008-36-0273.Also In
References
- Heavy-duty engines - Measurement of gaseous emissions from raw exhaust gas and of particulate emissions using partial flow dilution systems under transient test conditions
- Khalek Imad A. Shimpi Shirish A. Performance of partial flow sampling systems relative to full CVS using the EPA 2007 particle sampling procedures 17th CRC ON-ROAD VEHICLE EMISSIONS WORKSHOP San Diego, California March 26 - 28 2007
- Akard Michael Oestergaard Karl Chase Richard E. Richert Joel F. O. Fukushima Hirokazu Adachi Masayuki Comparison of an alternative particulate mass measurement with advanced microbalance analysis SAE 2004-01-0589
- Model DCS-100 diffusion charging sensor User's manual TSI inc. February 2007
- Wei Qiang Porter Scott Harvey Neal Kihara Nobutaka Khalek Imad Bougher Tom Diesel exhaust particulate sampler for on-board PM measurement SAE 2008-01-1180
- Anderson Robert C. Johnson Tim Shi Qian Khalek Imad Bougher Thomas Alternative method testing for a real-time particulate matter instrument using EPA part 1065 guidelines for an electrical aerosol detector 17th CRC ON-ROAD VEHICLE EMISSIONS WORKSHOP San Diego, California March 26 - 28 2007
- US EPA June 17 2008
- US EPA January 2008