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Modeling and Experimental Study of Uncontrolled Regenerations in SiC Filters with Fuel Borne Catalyst
Technical Paper
2004-01-0697
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The objective of this paper is to study the parameters affecting the evolution of “uncontrolled” regeneration in diesel particulate filters with fuel-borne catalyst (FBC) support with emphasis on the development of thermal stresses critical for filter durability. The study is based on experiments performed on engine dynamometer, corresponding to “worst-case” scenario, as well as on advanced, multi-dimensional mathematical modeling. A new 2-dimensional mathematical model is presented which introduces an additional dimension across the soot layer and wall. With this dimension it is possible to take into account the variability of catalyst/soot ratio in the layer and to compute intra-layer composition gradients. The latter are important since they induce interesting O2 diffusion phenomena, which affect the regeneration evolution. The capability of the model to predict the temperature distribution in the filter is validated based on a series of engine tests with and without post-injection. Special emphasis is given on the effect of catalyst/soot ratio in the soot layer. Dedicated testing for the characterization of emitted nano-particles using particle size measurements are employed to identify the conditions under which the FBC can be emitted as “free” (not agglomerated with soot) particle.
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Authors
- O. A. Haralampous - Laboratory of Applied Thermodynamics, Aristotle University Thessaloniki
- G. C. Koltsakis - Laboratory of Applied Thermodynamics, Aristotle University Thessaloniki
- Z. C. Samaras - Laboratory of Applied Thermodynamics, Aristotle University Thessaloniki
- Y. Watanabe - NGK Insulators Ltd
- T. Mizutani - NGK Insulators Ltd
- C.-D. Vogt - NGK Europe GmbH
- E. Ohara - NGK Europe GmbH
Citation
Haralampous, O., Koltsakis, G., Samaras, Z., Vogt, C. et al., "Modeling and Experimental Study of Uncontrolled Regenerations in SiC Filters with Fuel Borne Catalyst," SAE Technical Paper 2004-01-0697, 2004, https://doi.org/10.4271/2004-01-0697.Also In
Diesel Emissions on CD-ROM from the SAE 2004 World Congress
Number: SP-1835CD; Published: 2004-03-08
Number: SP-1835CD; Published: 2004-03-08
References
- Bissett E. J. “Mathematical Modeling of the Thermal Regeneration of a Wall-Flow Monolith Diesel Particulate Filter” Chemical Engineering Science 39 7/8 1233 1244 1984
- Haralampous O. A. Koltsakis G. C. Samaras Z.C. Vogt C.-D. Ohara E. Watanabe Y. Mizutani T. “Reaction and Diffusion Phenomena in Catalyzed Diesel particulate Filters” SAE paper 2004-01-0696 Detroit 2004
- Koltsakis G. C. Stamatelos A. M. “Modes of Catalytic Regeneration in Diesel Particulate Filters” Ind. Eng. Chem. Res. 1997 36 4255 4165
- Haralampous O. A. Koltsakis G. C. Samaras Z.C. “Partial Regenerations in Diesel Particulate Filters” SAE paper 2003-01-1881 2003
- Haralampous O. A. Koltsakis G. C. “Intra-layer temperature gradients during regeneration of diesel particulate filters” Chemical Engineering Science 57 2002 2345 2355
- Bissett E. J. Shadman F. “Thermal Regeneration of Diesel Particulate Monolithic Filters” AIChE Journal 31 5 753 May 1985
- Haralampous O. A. Kandylas I. P. Koltsakis G.C. Samaras Z. C. “Experimental Evaluation of Apparent Soot Oxidation Rates in Diesel Particulate Filters” International Journal of Vehicle Design
- Kyriakis N. Samaras Z. Vouitsis E. Manikas T. Pistikopoulos P. Pattas K. Seguelong T. Blanchard G. “A Novel Method for the Experimental Evaluation of Fuel-Borne Catalyst Effect on the Soot Auto-Ignition” SAE paper 2002-01-0429 Detroit 2002
- Burtscher H. Matter U. “Particle Formation due to Fuel Additives” SAE paper 2000-01-1883 2000