This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Multi-Dimensional Numerical Method for Predicting Warm-Up Characteristic of Automobile Catalytic Converter Systems
Annotation ability available
Sector:
Language:
English
Abstract
A multi-dimensional numerical method for predicting the warm-up characteristic of automobile catalytic converter systems was developed to effectively design catalytic converter systems which achieve low tail pipe emissions with satisfactory packagebility. The features of the method are;
(1) consideration of the governing phenomena such as gas flow, heat transfer, and chemical reactions (2) capability of predicting warm-up characteristic for not only the catalytic converters but also the system as a whole during emission test modes such as the USA LA-4 mode.
The description of the method is presented. The experimental verifications of the method were conducted to assure the accuracy of it. The effect of design parameters such as electrically heated catalyst (EHC), high loading of noble metal and thin honeycomb wall on warm-up characteristic of the catalyst are analyzed in the paper.
Recommended Content
Authors
Topic
Citation
Sugiura, S., Ijuin, K., Yamada, T., Yaegashi, T. et al., "A Multi-Dimensional Numerical Method for Predicting Warm-Up Characteristic of Automobile Catalytic Converter Systems," SAE Technical Paper 952413, 1995, https://doi.org/10.4271/952413.Also In
References
- Heck, R.H. Wei, J. Katzer, J.R. “Mathematical Modeling of Automotive Catalysts” AIChE J. 22 477 1976
- Lee, S.T. Aris. R. “On the Effects of Radiative Heat Transfer in Monoliths” Chem. End. Sci. 32 827 1977
- Oh, S. H. Cavendish, J.C. “Transient of Monolithic Catalytic Converters: Response to a Step Change in Freestream Temperature as Related to Controlling Automobile Emissions” Ind. Eng. Chem. Prod. Res. Dev. 21 29 1982
- Chen, D.K.J. Bissett, E.J. Oh, S.H. Van Ostrom, D. “A Three-Dimensional Method for the Analysis of Transient Thermal and Conversion Characteristics of Monolithic Catalytic Converters” SAE Paper 880282 1988
- Baba, N. Ohsawa, K. Sugiura, S. “Analysis of Transient Thermal and Conversion Characteristics of Catalytic Converters during Warm-up” Proceedings of the 45th JSAE Spring Annual Meeting 1995
- STAR-CD Version 2.2 Manuals
- Will, N.S. Bennett, C.J. “Flow maldistributions in Automotive Converter Canisters and their Effect on Emission Control” SAE Paper 922339 1992
- Votruba, J. Mikus, O. Nguen, K. Hlavacek, V. Skrivanek, J. “Heat and Mass Transfer in Honeycomb Catalysts-2” Chem.Eng. Sci. 30 201 1975
- Bennett, C.J. Kolaczkowski, S.T. Thomas, W.J. “Determination of Heterogeneous Reaction Kinetics and Reaction Rates under Mass Transfer Controlled Conditions for Monolith Reactor” Tran., IChem. 69 209 1991
- Bird, R.B. Stewart, W.E. Lightfoot, E.N. “Transport Phenomena” John Wiley New York 504 1960
- Voltz, S.E. Morgan, C.R. Liederman, D. Jacob, S.M. “Kinetic Study of Carbon Monoxide and Propylene Oxidation on Platinum Catalysts” Ind. Eng. Chem. Prod. Res Develop. 12 4 1973
- Montreuil, C.N. Williams, S.C. Adamczyk, A.A. “Modeling Current Generation Converters: Laboratory Experiments and Kinetic Parameter Optimization - Steady State Kinetics” SAE Paper 920096 1992
- Yaegashi, T. Yoshizaki, K. Nagami, T. Sugiura, S. Yoshinaga, T. Ohsawa, K. “New Technology for Reducing the Power Consumption of Electrically Heated Catalysts” SAE Paper 940464 1994
- Baba, N. Ohsawa, K. Ijuin, K. “Effects of the Noble Metal Loading Pattern on Conversion Characteristics of Automobile Catalytic Converters” Proceedings of the 12th Internal Combustion Engine Symposium 1995