This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Substrate Diameter and Cell Density FTP Performance
Technical Paper
2007-01-1265
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
An experiment was performed with a 1.3L catalytic converter design containing a front and rear catalyst each having a volume of 0.65 liters. This investigation varied the front catalyst parameters to study the effects of 1) substrate diameter, 2) substrate cell density, 3) Pd loading and 4) Rh loading on the FTP emissions on three different vehicles. Engine displacement varied from 2.4L to 4.7L. Eight different converters were built defined by a Taguchi L-8 array. Cold flow converter restriction results show the tradeoff in converter restriction between substrate cell density and substrate diameter. Vehicle FTP emissions show how the three vehicles are sensitive to the four parameters investigated. Platinum Group Metals (PGM) prices and Federal Test Procedure (FTP) emissions were used to define the emission value between the substrate properties of diameter and cell density to palladium (Pd) and rhodium (Rh) concentrations.
Recommended Content
Authors
Citation
Ball, D., Zammit, M., and Mitchell, G., "Effects of Substrate Diameter and Cell Density FTP Performance," SAE Technical Paper 2007-01-1265, 2007, https://doi.org/10.4271/2007-01-1265.Also In
References
- Schmidt, J. et al. “The Impact of High Cell Density Ceramic Substrates and Washcoat Properties on the Catalytic Activity of Three Way Catalysts” SAE Paper 99 FL-72
- Ball, D.J. et al. “A Comparison of Emissions and Flow Restriction of Thinwall Ceramic Substrates for Low Emission Vehicles” SAE Paper 1999-01-0271
- Ball, D.J. et al. “Ultra Thin Wall Catalyst Solutions at Similar Restriction and Precious Metal Loading” SAE Paper 2000-01-1844
- Hughes, K.W. et al. “Impact of Ultra Thinwall Catalyst Substrates for Tier 2 Emission Standards” SAE Paper 2003-01-0658
- Hughes, K.W. et al. “Relative Benefits of Various Cell Density Ceramic Substrates in Different Regions of the FTP Cycle” SAE Paper 2006-01-1065
- Kirby, C.W. et al. “Durability of Ultra Thin Wall Catalyst Solutions at Similar Restriction and Precious Metal Loading” SAE Paper 2000-01-2881
- Hughes, K.W. et al. “Ultra Thin Wall Substrates - Trends for Performance in FTP and US06 Tests” SAE Paper 2002-01-0356
- Ball D. Blosser, P. Nunan, J. Mitchell, G. Zammit, M. “FlexMetal Catalyst Technologies” SAE Paper 2005-01-111
- Gulati S. Jones L. Brady M. Baker R. Kessler B. Zammit M. Snider B. Rajadurai S. “Advanced Three-Way Converter System for High Temperature Exhaust After-treatment” SAE Paper 970265
- Zammit, M. Mitchell, G. Ball. D. “PGM Optimization by Robust Design” SAE Paper 2005-01-3849
- Taguchi, G et al Robust Engineering McGraw Hill 2000