This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Description of the Regeneration Behavior of Diesel Particulate Traps with the Aid of a Mathematical Model
Annotation ability available
Sector:
Language:
English
Abstract
Monolithic ceramic filters, suitable for reducing particulate emissions to within the 0,2 g/mile emissions limit, are intermittantly loaded and regenerated. A mathematical model was developed in order to describe the processes which take place in the filter during regeneration. The basis of the calculation model, such as reaction kinetics, heat and mass transfer, energy and mass balance, and flow performance are explained. Filter temperature, soot oxidation and exhaust flow behavior are described over the length of a filter channel.
A calculated and measured regeneration sequence for an engine operating point near engine full load are illustrated and compared. The results show that due to the prevailing higher temperatures, an intensified soot oxidation occurs at the rear of the channel. A comparison of calculated and measured regeneration requirements as well as salient oxidation parameters leads to the definition of an engine operating range where the minimum regeneration requirements are satisfied. In this range the filtered soot mass and the oxidizing soot mass are in equilibrium.
Recommended Content
Authors
- E. Pauli - RWTH AACHEN, LEHRSTUHL FÜR ANGEWANDTE THERMODYNAMICFEV, FORSCHUNGSGESELLSCHAFT FÜR ENERGIE-TECHNIK UND VERBRENNUNGSMOTOREN, AACHEN
- G. Lepperhoff - RWTH AACHEN, LEHRSTUHL FÜR ANGEWANDTE THERMODYNAMICFEV, FORSCHUNGSGESELLSCHAFT FÜR ENERGIE-TECHNIK UND VERBRENNUNGSMOTOREN, AACHEN
- F. Pischinger - RWTH AACHEN, LEHRSTUHL FÜR ANGEWANDTE THERMODYNAMICFEV, FORSCHUNGSGESELLSCHAFT FÜR ENERGIE-TECHNIK UND VERBRENNUNGSMOTOREN, AACHEN
Topic
Citation
Pauli, E., Lepperhoff, G., and Pischinger, F., "The Description of the Regeneration Behavior of Diesel Particulate Traps with the Aid of a Mathematical Model," SAE Technical Paper 830180, 1983, https://doi.org/10.4271/830180.Also In
References
- Wicke, E. Strömung, Diffusion und Reaktion bei der Kohleverbrennung Chem.Ing.Techn. 23 1951 17,18 S.420
- Wicke, E. Iledden, K. Die Bedeutung der inneren Oberfläche und der Poren-diffusion für die Verbrennung und Vergasung poröser Kohlen Zeitschr. f Elektrochemie 1953 bd. 57 8 S.636
- Wicke, E. Rossberg, M. Transport-vorgänge und Oberflächenreaktionen bei der Verbrennung graphitischen Kohlenstoffs Chem.Ing.Techn. 28 1956 3 S.181
- Murphy, M. J. Hillenbrand, L. J. Trayser, D. A. Wasser, J. H. Assessment of Diesel Particulate Control-Direct and Catalytic Oxidation SAE-Paper 810112 February 1981
- Lewis, W. K. Gilliland, E. R. Paxton R. R. Low Temperature Oxidation of Carbon Ind.Eng.Chemistry 6 1954 S.1327
- Lee, K. B. Thring, M. W. Beér, J. M. On the Rate of Combustion of Soot in a lamiar Soot Flame Combustion and Flame Bd.6 1962 S.137
- /7/ Laine, N. R. Vastole, F. J. Walker P. L. The Importance of Active Surface Area in the Carbon Oxygen Reaction Dep. of Fuel Technology Pennsylvania State University 3 1968
- Otto, K. Sie, M. H. Zinbo, M. Bartosieviz L. The Oxidation of Soot Deposits from Diesel Engines SAE-Paper Nr. 800336 Februar 1980
- Mogaka, Z. N. Wong, V. W. Shaded S. M. Performance and Regeneration Characteristics of a Cellular Ceramic Diesel Particulate Trap SAE-Paper 820272 February 1982
- Thoenes, D. Kramers H. Chem. Engng. Sci 8 1958
- Wade, W. R. White, J. E. Florek J. J. Diesel Particulate Trap Regeneration Techniques SAE-Paper Nr. 810118 February 1981
- Howitt, J. S. Montierth, M. R. Cellular Ceramic Diesel Particulate Filter SAE-Paper Nr. 810114 February 1981