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The Design of Automotive Catalyst Supports for Improved Pressure Drop and Conversion Efficiency
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English
Abstract
The current automotive catalytic converter is highly dependable and provides excellent emissions reduction while at the same time it offers little resistance to the flow of gasses through the exhaust system. As automobile performance requirements increase, and as the allowable tailpipe emissions are tightened, there is a need on the one hand to reduce the back pressure even further, and on the other, to increase the already excellent catalytic performance.
This paper will analyze the substrate factors which influence the pressure drop and conversion efficiency of the catalyst system.
The converter frontal area has the most significant influence on both pressure drop and conversion efficiency, followed in order by part length, cell density, and wall thickness.
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Authors
Citation
Day, J. and Socha, L., "The Design of Automotive Catalyst Supports for Improved Pressure Drop and Conversion Efficiency," SAE Technical Paper 910371, 1991, https://doi.org/10.4271/910371.Also In
References
- “The Development and Application of a Metal Supported Catalyst for Porsche's 911 Carrera 4” Pelters S. Kaiser F.W. Maus W SAE Paper # 890488 1989
- “Fluid Mechanics” Streeter V.L. Wylie E.B. 7th McGraw Hill Book Company 193
- “Elementary Fluid Mechanics” Vennard J.K. 4th John Wiley & Sons, Inc 290
- “Compact Heat Exchangers” Kays W.M. London A.L. McGraw-Hill Book Co. N.Y., N.Y. 1964 103
- “Principles of Heat Transfer” Kreith F. Intext Educational Publishers N.Y., N.Y. 1973 636
- “The Design of a New Ceramic Catalyst Support” Day J.P. SAE Paper # 902167 1990
- “Cell Design for Ceramic Monoliths for Catalystic Converter Application” Gulati S.T. SAE Paper # 881685 1988
- “Use of High Cell Density Monolithic Catalysts for Automotive Exhaust Emission Control” Kitajima T. Chiku T. Shirakura Y. Yamada M. SAE Paper # 820483
- “Impact of Catalyst Support Design Parameters on Automotive Emissions” Day J.P. Socha L.S., Jr. SAE Paper # 881590 1988
- “Multicellular Ceramics as Catalyst Supports for Controlling Automotive Emissions” Bagley R.D. Doman R.C. Duke D.A. McNally R.N. SAE Paper # 730274 1973
- “Impact of Catalyst Support Design Parameters on FTP Emissions” Socha L.S. Jr. Day J.P. Barnett E.H. SAE Paper # 892041 1989