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Flow Analysis and Catalytic Characteristics for the Various Catalyst Cell Shapes
Technical Paper
1999-01-1541
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The shape of unit cell of catalytic converter has great influence on the conversion efficiency and pressure drop characteristics. Therefore, the properties of design parameters of catalyst monolith were analyzed and the parameters of various cell shapes of catalyst were compared.
Also, the numerical study of a three dimensional compressible flow in a Close-coupled Catalyst Converter (CCC) system was performed to investigate the flow characteristics and the flow distribution of exhaust gases. Unsteady flow analysis shows that severe interferences of each pulsating exhaust gas flow as well as geometric factors (junction, mixing pipe, cell shape etc.) influence greatly on the flow uniformity and flow characteristic in substrate. The results can be applied for the catalytic converter design.
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Citation
Park, S., Kim, H., Cho, Y., Lee, S. et al., "Flow Analysis and Catalytic Characteristics for the Various Catalyst Cell Shapes," SAE Technical Paper 1999-01-1541, 1999, https://doi.org/10.4271/1999-01-1541.Also In
References
- Gulati Suresh T. “Cell Design for Ceramic Monoliths for Catalytic Converter Application” SAE 881685
- Day J. Paul “The Design of a New Ceramic Catalyst Support” SAE 902167
- Day J. Paul Socha Louis S. “The Design of Automotive Catalyst Supports for Improved Pressure Drop and Conversion Efficiency” SAE 910371
- Day J. Paul “Substrate Effects on Light-Off-Part? Thermal Energy Requirements” SAE 962074
- Day J. Paul “Substrate Effects on Light-Off-Part? Cell Shape Contributions” SAE 971024
- Gerhart Philip M. “Fundamentals of Fluid Mechanics” Addison Wesley 1993 474 478
- Tamura Nakaba Matsumoto Shinichi Kawabata Masataka “The Development of an Automotive Catalyst using a Thin wall(4mil/400cpci) Substrate” SAE 960557
- Kakac Sadik et al. “Handbook of Single-Phase Convective Heat Transfer” Wiley-Interscience
- Lai M. C. Kim, J. Y Cheng C. Y. Li P. Chui G. Pakko J. D. “Three Dimensional Simulations of Automotive Catalytic Converter Internal Flow” SAE Paper 910200
- Weltens H. Bressler H. Terres F. Neumaier H. Rammoser D. “Optimization of Catalytic Converter Gas Flow Distribution by CFD prediction” SAE Paper 930780
- Bressler H. Rammoser D. Neumaier H. Terres F. “Experimental and Predictive Investigation of a Close Coupled Catalyst Converter with Pulsating Flow” SAE Paper 960564
- Jeong SooJin Kim Taehun “CFD Investigation of the 3-Dimensional Unsteady Flow in the Catalytic Converter” SAE Paper 971025
- Park Sang-Bong Kim Han-Sang Cho Kyung-Min Kim Woo-Tae “An Experimental and Computational Study of Flow Characteristics in Exhaust Manifold and CCC (Close-Couped Catalyst)” SAE Paper 980128
- Tabaczynski Rodney J. Heywood John B. Keck James C. “Time-Resolved Measurements of Hydrocarbon Mass Flowrate in the Exhaust of a Spark-Ignition Engine” SAE Paper 720112
- Star-CD Ver. 3.0 User's Manual 1996 Computational Dynamics Limited