This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Experimental Testing of a Low Temperature Regenerating Catalytic DPF at the Exhaust of a Light-Duty Diesel Engine
Technical Paper
2018-01-0351
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The wall-flow Diesel Particulate Filter (DPF) is currently the most common after-treatment system used to meet the particulate emission limits imposed by government regulations. Today’s technology shows the best balance between filtration efficiency and back-pressure in the engine exhaust pipe. Conventional filters consist in alternately plugged parallel square channels, so that the exhaust gases flow through the porous inner walls leading to particles trapping. During the accumulation phase the pressure drop across the filter increases, thus requiring periodic regeneration of the DPF through after and post fuel injection strategies.
This paper deals with the experimental testing of a catalytic silicon carbide (SiC) wall flow DPFs with CuFe2O4 loading. The filter was built following an optimized procedure based on a preliminary controlled chemical erosion of the SiC porous structure. Such method allows increasing the initial average pore diameter of the bare filters and consequently the deposition of higher catalyst load without affecting the pressure drop.
The experimental tests were performed at the exhaust of a EURO V light-duty Diesel engine, operating at different speed/load conditions. The results exhibit a filtration efficiency higher than 96% throughout the soot accumulation phase and a threshold catalyst temperature for the regeneration lower than 450 °C, with a duration of about 15 minutes. These values, if compared with those related to the uncatalysed commercial filter (600 °C and 25 minutes), evidence the possibility to achieve significant fuel saving along with shorter and thus flexible regeneration transients.
Recommended Content
Authors
Topic
Citation
Rossomando, B., Arsie, I., Meloni, E., Palma, V. et al., "Experimental Testing of a Low Temperature Regenerating Catalytic DPF at the Exhaust of a Light-Duty Diesel Engine," SAE Technical Paper 2018-01-0351, 2018, https://doi.org/10.4271/2018-01-0351.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 |
Also In
References
- Vlachos , T.G. , Bonnel , P. , Perujo , A. , Weiss , M. et al. In-Use Emissions Testing with Portable Emissions Measurement Systems (PEMS) in the Current and Future European Vehicle Emissions Legislation: Overview, Underlying Principles and Expected Benefits SAE Int. J. Commer. Veh. 7 1 199 215 2014 10.4271/2014-01-1549
- Arsie , I. , Di Iorio , S. , and Vaccaro , S. Experimental Investigation of the Effects of AFR, Spark Advance and EGR on Nanoparticle Emissions in a PFI SI Engine Journal of Aerosol Science 64 1 10 2013
- Tennison , P.J. and Reitz , R.D. An Experimental Investigation of the Effects of Common Rail Injection System Parameters on Emissions and Performance in a High-Speed Direct-Injection Diesel Engine ASME J. of Engineering for Gas Turbines and Power 123 167 178 2001
- De Ojeda , W. , Zoldak , P. , Espinosa , R. , and Kumar , R. Development of a Fuel Injection Strategy for Diesel LTC SAE Technical Paper 2008-01-0057 2008 10.4271/2008-01-0057
- Eastwood P. Critical Topics in Exhaust Gas Aftertreatment First Baldock, Hertfordshire, England Research Studies Press LTD 2000
- Knetch , W. Diesel Engine Development in View of Reduced Emissions Standards Energy 33 2 264 271 2008
- Makkee , M. and Moulijin , J.A. Diesel Particulate Emission Control Fuel Processing Technology 47 1 69 1996
- Meloni , E. , Palma , V. , and Vaiano , V. Optimized Microwave Susceptible Catalytic Diesel Soot Trap Fuel 205 142 152 2017
- Beatrice , C. , Di Iorio , S. , Guido , C. , and Napolitano , P. Detailed Characterization of Particulate Emissions of an Automotive Catalyzed DPF Using Actual Regeneration Strategies Experimental Thermal and Fluid Science 39 45 53 2012
- Lapuerta , M. , Rodriguez-Fernandez , J. , and Oliva , F. Effect of Soot Accumulation in a Diesel Particle Filter on the Combustion Process and Gaseous Emissions Energy 47 1 543 552 2012
- Cauda , E. , Hernandez , S. , Fino , D. , Saracco , G. , and Specchia , V. Emissions during Diesel Trap Regeneration Environment Science Technology 40 5532 5537 2006
- Jiaqiang , E. , Zuo , W. , and Gao , J. Effect Analysis on Pressure Drop of Continuous Regeneration-Diesel Particulate Filter Based on NO 2 Assisted Regeneration Applied Thermal Engineering 100 356 366 2016
- Choi , S. and Lee , K. Detailed investigation of Soot Deposition and Oxidation Characteristics in a Diesel Particulate Filter Using Optical Visualization SAE Technical Paper 2013-01-0528 2013
- Bergmann , M. , Kirchner , U. , Vogt , R. , and Benter , T. On-Road and Laboratory Investigation of Low-Level PM Emissions of a Modern Diesel Particulate Filter Equipped Diesel Passenger Car Atmospheric Environment 43 1908 1916 2009
- Haralampous , O.A. , Koltsakis , G. , and Samaras , Z. Reaction and Diffusion Phenomena in Catalyzed Diesel Particulate Filters SAE Technical Paper 2004-01-0696 2004 10.4271/2004-01-0696
- Choi , S. , Oh , K. , and Lee , C. The Effects of Filter Porosity and Flow Conditions on Soot Deposition/Oxidation and Pressure Drop in Particulate Filters Energy 77 327 337 2014