This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Novel Electrostatic Method of Ultrafine PM Control Suitable for Low Exhaust Temperature Applications
Technical Paper
2003-01-0771
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A novel type of electrostatic diesel particulate reduction device has been developed which is intended for use in low exhaust temperature applications. Tests were conducted to assess the performance of the technology with particular emphasis on temperature dependence and ultrafine particle removal efficiency. Rolling road dyno tests were used to enable the tests to be performed with conditions as close as possible to real on road driving. The device works by electrostatically ionizing the particulate matter which is then attracted onto an earthed surface where agglomeration occurs. This process results in a reduction in ultrafine particles which combine together with other particles to form larger agglomerates. Larger agglomerated particles are less of a health risk and are easier to remove by filtration or other means. The device was tested over a range of operating conditions on a number of vehicles and it was found in all of the tests that the device significantly reduced the emission of ultrafine particles (85 - 99%). These results were consistent over the entire drive cycle from engine cold start proving the non-temperature dependence of the technology and its suitability to low exhaust temperature applications such as urban driving where catalysis can be less effective. Conventional forecourt diesel fuel was used in all of these tests. This paper presents a selection of the test results, gives an introduction to the technology, an explanation of the ionization and agglomeration processes and details the test methods used to obtain the results.
Recommended Content
Authors
Citation
Wright, J., Kukla, P., Ball, A., Gu, F. et al., "A Novel Electrostatic Method of Ultrafine PM Control Suitable for Low Exhaust Temperature Applications," SAE Technical Paper 2003-01-0771, 2003, https://doi.org/10.4271/2003-01-0771.Also In
Diesel Emission Measurement, Modeling, & Control from the SAE 2003 World Congress on CD-ROM
Number: SP-1754CD; Published: 2003-03-03
Number: SP-1754CD; Published: 2003-03-03
References
- Monaghan, M.L. “Particulates and the diesel - the scale of the problem” Diesel Engines - Particulate Control IMechE Seminar Publication 1998
- Majewski, W.A. “The nature of diesel nanoparticles may require rethinking of particulate matter standards” Diesel Progress June 1998
- Donaldson K Li X.Y. MacNee W “Ultrafine nanometer particle mediated lung injury” J Aerosol Sci 29 5 1998
- US2007 Diesel Emissions Standards and Fuel Rule Upheld in Court, Diesel Net News May 7 2002 http://www.dieselnet.com/news/0205epa.html
- Brear, F “Diesel exhaust particle emissions: an engine manufacturer's contribution to the debate” The Science of the Total Environment 235 1999
- Carberry, B Horrocks, R Backes, R Ketcher, D “A focus on current and future particulate after-treatment systems” Diesel Engines - Particulate Control IMechE Seminar Publication 1998
- Diesel Net Emissions Standards Online http://www.dieselnet.com/standards/eu/hd.html
- Health Effects Institute 1995 Diesel Exhaust: A Critical Analysis of Emissions, Exposure, and Health Effects (A Special Report of the Institute's Diesel Working Group) Health Effects Institute Cambridge, MA
- Kittelson, D.B. “Engines and Nanoparticles: A Review” J. Aerosol Science 29 5 6 1998
- Roth, J.R. “Industrial Plasma Engineering - Volume 1: Principles” Institute of Physics Publishing 1995
- Townsend, J.S. “Electricity in Gases” Oxford 1915
- Parker, K.R. “Applied Electrostatic Precipitation” Chapman and Hall 1997
- Cochet, R “Lois Charge des Fines Particules (Submicroniques) Etudes Theoriques - Controles Recents Spectre de Particules” Coll. Int. la Physique des Forces Electrostatiques et Leurs Application Centre National de la Recherche Scientifique Paris 102
- Oglesby, S “Electrostatic Precipitation” New York M.Dekker 1978
- Riehle, C Wadenpohl, C Loffler, F “Electrically stimulated agglomeration at an earthed surface” Proc. 10 th Particulate Control Symposium Washington 1993
- “Reissue - Regulated Emissions and Exhaust Particulate Measurements on Diesel Taxi Vehicles with and without the Per-Tec After Treatment Device” Shell Global Solutions November 2001
- Diesel Net Emissions Test Cycles http://www.dieselnet.com/tech/cycles/ece.txt
- “Emissions Tests on Fire Appliances Using Simulated Driving Cycles on a Rolling Road Dynamometer” Norris, J Beesley, M Leyland Technical Center November 2001