This content is not included in your SAE MOBILUS subscription, or you are not logged in.
A New Instrument for Diesel Particulate Filter Functional Tests in Development and Quality Control Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 12, 2010 by SAE International in United States
Annotation ability available
A new Diesel Particulate Generator (DPG) has been developed and commercialized for the automated testing of full-size, light duty Diesel Particulate Filters (DPFs). The system was optimized for filter development testing with a wide parameter range of relevant functional tests, and quality assurance testing where repeatability and rapid testing is important. A carefully designed Diesel-fuelled burner is combined with blowers to produce flows, temperatures and particulate matter (PM) that are representative of Diesel engines. The burner operates with continuous combustion of a Diesel fuel spray, with three-stage introduction of controlled airflows. Variation of these flows allows control of particulate generation independently of total gas flow and temperature (over a temperature and flow range). The system can generate stable PM at more than 20 g/h, or operate without PM formation so permitting preheating of a test filter. To ensure stability of PM generation, gas is drawn through the filter by a vacuum blower on the filter's exhaust side, such that the operating pressure of the burner which generates the PM is unaffected by changing backpressure across the filter as it is loaded with PM.
Data are presented that characterize the reliable performance of the DPG system (stability, repeatability etc), and various comparisons between DPG and Diesel engine PM are made. Results are presented demonstrating capability for standard backpressure versus flow-rate measurements under “cold” conditions. In addition to measuring backpressure as a function of PM load under typical engine operating conditions, the DPG can also achieve conditions for filter regeneration. Regeneration behavior can be studied by adjusting fuel and air flows to simulate engine “Maximum Soot Load” (MSL) tests. Data are presented comparing regenerations of a DPF with identical engine and DPG PM loadings of 8 g/litre. Real-time filtration efficiency is shown during the loading of a “clean” regenerated DPF. The importance of ‘DPF pre-conditioning’ in the Euro 5/6 PMP solid particle number protocol is clearly demonstrated.
|Technical Paper||Ceria-zirconia Nanocatalysts for Diesel Soot Combustion|
|Technical Paper||DPF Soot Loading and Regeneration:A Lumped Parameter Approach|
|Technical Paper||Effect of Soot Loading on the Thermal Characteristics of Diesel Engine Oils|
CitationHands, T., Twigg, M., and Gallinger, M., "A New Instrument for Diesel Particulate Filter Functional Tests in Development and Quality Control Applications," SAE Technical Paper 2010-01-0809, 2010, https://doi.org/10.4271/2010-01-0809.
- AID, Schmidt's auto publications, 2nd August, 2006, 0614, pp. 1-2; 1st August, 2008, 0814, pp. 1-5
- ‘Clean cars: Commission proposes to reduce emissions’, EUROPA press release, Brussels, 21 December, 2005, Ref. IP/05/1660
- Merkel G. A., Tao T., Cutler W. A., Chiffey A. F., Phillips P. R., Twigg M. V. and Walker A. P., ‘New Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed Applications’, 2003 Diesel Engine Emissions Reduction (DEER) Conference, Newport, Rhode Island, U.S.A., 24th-28th August, 2003
- Blakeman, P.G., Chiffey, A.F., Phillips, P.R., Twigg, M.V. et al., “Developments in Diesel Emission Aftertreatment Technology,” SAE Technical Paper 2003-01-3753, 2003
- Wirojasakunchai, E., Schroeder, R., Kolodziej, C., Foster, D.E. et al., “Detailed Diesel Exhaust Particulate Characterization and Real-Time DPF Filtration Efficiency Measurements During PM Filling Process,” SAE Technical Paper 2007-01-0320, 2007.
- See for example http://en.wikipedia.org/wiki/Thermogravimetric_analysis
- Chiffey A. F., Phillips P. R., Swallow D., Twigg M. V., Cutler W. A., Boger T., Rose D. and Kercher L., ‘Performance of New Catalyzed Diesel Soot Filters Based on Advanced Oxide Filter Materials’, 4th FAD Conference “Challenge - Exhaust Aftertreatment for Diesel Engines”, FAD Diesel E.V., Dresden, Germany, 8th-9th November, 2006
- Hands T., Twigg M. V., ‘A Standard Soot Generator for Diesel Particulate Filter Testing’. Poster presented at Diesel Engine Efficiency and Emissions Research Conference (DEER), Detroit August 2007.
- ‘Smoke value measurement with the filter paper method’, application notes AT1007E, Rev. 02 2005 from www.avl.com
- Reavell K, ‘Calibration of Fast Electrical Mobility Spectrometers for Engine Particulate Measurement’, 11th ETH conference on nanoparticles, August 2007.
- Hands T, ‘Repeatable regeneration testing with a controlled Diesel Particulate Generator’, Reduction of vehicles particulates emissions Dexfil 2009, Cracow Poland, November 18-19, 2009
- See for example information given in: www.superflow.com/Flowbenches/flowbenches.html
- Al Qurashi Khalid, EMS Energy Inst, Penn State University, US - Light duty TEM
- Harris P, Centre for Advanced Microscopy, Reading University UK. - Heavy duty Diesel and DPG TEM
- Al-Qurashi Khalid, ‘Impact of exhaust gas recirculation (EGR) on the oxidative reactivity of Diesel engine soot’, Combustion and Flame 155 (2008) 675-695.