This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Soot Generator for DPF Qualification Studies
Technical Paper
2007-01-0322
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Diesel vehicle applications are being tasked with increasingly stringent particulate emissions regulations. These regulations will require the use of Diesel Particulate Filters (DPFs). Prior to on-vehicle studies, DPF qualification studies are performed in laboratory bench reactors. In order to provide representative performance data, these studies require the testing of samples loaded with carbonaceous soot particles. A new soot generator, utilizing a pressure controlled propane flame, has been designed and built for this purpose. Soot production rates are on the order of approximately 8 mg/min at a concentration of 180 mg/m3. This allows 8 inch long cores to be loaded in 1 hour to soot concentrations encountered in typical vehicle operation. The soot generator allows for the selection of two distinct size distributions similar to typical diesel exhaust: a 57 nm peak and a 76 nm peak. Other peak locations, in the range of 40 to 120 nm, can be obtained with slight adjustments to the hardware. This paper describes the construction and operation of this new instrument and presents validation data. Checks of linearity, particle size distribution, and mass production rates will be presented. Additionally, regeneration studies of loaded samples show that decreasing the size of particles results in increased pressure drops across DPFs as well as less efficient combustion of particles.
Recommended Content
Technical Paper | Development of Diesel Particulate Filter Made of Porous Metal |
Technical Paper | Investigation of Platinum and Cerium from Use of a FBC |
Technical Paper | Development of Compact SCR Systems with Closely Coupled Injector Configurations |
Authors
Topic
Citation
Shah, S. and Dobson, D., "A Soot Generator for DPF Qualification Studies," SAE Technical Paper 2007-01-0322, 2007, https://doi.org/10.4271/2007-01-0322.Also In
References
- Prenni, A. J. Siefert, R. L. Onasch, T. B. Tolbert, M. A. DeMott, P. J. Design and Characterization of a Fluidized Bed Aerosol Generator: A Source for Dry, Submicrometer Aerosol Aerosol Science and Technology 32 2000
- Boucher, R. F. Lua, A. C. A Stable, High Concentration Dry Aerosol Generator Journal of Aerosol Science 13 1982
- Locker, R. J. Gunasekaran, N. Sawyer, C. Diesel Particulate Filter Test Methods SAE Technical Paper Series , No. 2002-01-1009
- Fuchs, N. A. The Mechanics of Aerosols Pergamon Press New York 1964
- Liu, B. Y. H. Lee, K. W. An Aerosol Generator of High Stability A.I.H.J. 36 1975
- Stipe, C. B. Higgins, B. S. Lucas, D. Koshland, C. P. Sawyer, R. F. Inverted Co-Flow Diffusion Flame for Producing Soot Review of Scientific Instruments 76 2005
- Schwyn, S. Garwin, E. Schmidt-Ott, A. Aerosol Generation by Spark Discharge Journal of Aerosol Science 19 1988
- Maricq, M. M. Chase, R. E. Podsiadlik, D. H. Vehicle Exhaust Particle Size Distributions: A Comparison of Tailpipe and Dilution Tunnel Measurements SAE Technical Paper Series , No. 1999-01-1461
- Shi, J. P. Harrison, R. M. Investigation of Ultrafine Particle Formation During Diesel Exhaust Dilution Environmental Science and Technology 33 1999
- Khalek, I. A. Kittelson, D. B. Graskow, B. R. Wei, Q. Brear, F. Diesel Exhaust Particle Size: Measurement Issues and Trends SAE Technical Paper Series , No. 980525
- Vaaraslahti, K. Virtanen, A. Ristimaki, J. Keskinen, J. Nucleation Mode Formation in Heavy-Duty Diesel Exhaust With and Without a Particulate Filter Environmental Science and Technology 38 2004
- Khalek, I. A. Spears, M. Charmley, W. Particle Size Distribution from a Heavy-Duty Diesel Engine: Steady-State and Transient Emission Measurement Using Two Dilution Systems and Two Fuels SAE Technical Paper Series , No. 2003-01-0285
- Johnson, T. Caldow, R. Pocher, A. Mirme, A. Kittelson, D. B. A New Electrical Mobility Sizer Spectrometer for Engine Exhaust Particle Measurements SAE Technical Paper Series , No. 2004-01-1341
- Holmen, B. A. Ayala, A. Ultrafine PM Emissions from Natural Gas, Oxidation Catalyst, Diesel and Particulate-Trap Diesel Heavy-Duty Transit Buses Environmental Science and Technology 36 2002
- Konstandopoulos, A. G. Kostoglou, M. Vlachos, N. Kladopoulou, E. Progress in Diesel Particulate Filter Simulation SAE Technical Paper Series , No. 2005-01-0946