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A Study of the Effect of Flow Pulsations on the Flow Distribution within Ceramic Contoured Catalyst Substrates
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 07, 2001 by SAE International in United States
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This study examines the effect of pulsating flow on the flow distribution through contoured substrates. Three ceramic contoured substrates of equal volume were assessed. Two of the substrates were cone shaped with different cone angles and one had a dome shaped front face. The flow distribution was measured for a range of flow rates and pulsation frequencies. Computational Fluid Dynamics (CFD) simulations were also performed. It is shown how a contoured substrate can provide improvements in flow uniformity and that they are less sensitive to changes in flow rate and pulsation frequency when compared to the case of a standard substrate. Improvements in the prediction of flow distribution are reported when substrate “entrance effects” are accounted for.
CitationBenjamin, S., Roberts, C., and Wollin, J., "A Study of the Effect of Flow Pulsations on the Flow Distribution within Ceramic Contoured Catalyst Substrates," SAE Technical Paper 2001-01-1996, 2001, https://doi.org/10.4271/2001-01-1996.
SAE 2001 Transactions Journal of Fuels and Lubricants
Number: V110-4 ; Published: 2002-09-15
Number: V110-4 ; Published: 2002-09-15
- Howitt, J. S., Sekella, T. C., - Flow effects in Monolithic Honeycomb Automotive Catalytic Converters, SAE paper 740244, 1974.
- Comfort, E. H., - Monolithic Catalytic Converters Performance as a function of Flow Distribution, ASME Winter Annual Meeting, Paper No. 74 WA/HT-30, 1974.
- Wollin, J., Benjamin, S. F., - “A Study of the Flow Performance of Ceramic Contoured Substrates for Automotive Exhaust Catalyst Systems”, 1999 SAE Transactions, Vol. 108, Journal of Fuels & Lubricants, Section 4, pages 2014-2021.
- Heibel, A., and Spaid, M. A. A., - A New Converter Concept Providing Improved Flow Distribution and Space Utilization, Corning Inc. SAE Spring Fuels and Lubricants, SAE 990768, 1999.
- Schönfelder, C., - Strömungsoptimierung von metallishen Automobil-Abgaskatalysatoren, VDI Berichte, 613, pp 801-818, 1986.
- Holmgren, A., Grönstedt, T., Andersson, B., -Improved Flow Distribution in Automotive Monolithic Converters, Chalmers University of Technology, Gothenburg, Sweden, 1997.
- Shuai, S., Wang, J., Zhuang, R., Chen, J., - The Effects of Structure of Automotive Catalytic Converters on its Flow Distribution, Chinese Automotive Engineering, vol. 22, no. 1, 2000.
- Shuai, S., Wang, J., Zhuang, R., Chen, J., - Study on Flow Characteristics of Automotive Catalytic Converters with Various Configurations, SAE Int. Conference, USA, SAE 2000-01-0208, 2000.
- Benjamin S. F., Clarkson R. J., Haimad N. and Girgis N. S. - An experimental and predictive study of the flow in axisymmetric automotive exhaust catalyst systems, 1996 SAE Transactions, Vol. 105, Journal of Fuels and Lubricants, Section 4, pages 1008-1019.
- TSI Inc. Fluid Mechanics Instrument Division, - IFA Constant Temperature Anemometer System, Instruction Manual, Part no 1990746, May 1997.
- Zhao, F.-Q., Li, L., Xie, X., Lai, M.-C. - An Experimental Study of the Flow Structure Inside the Catalytic Converter of a Gasoline Engine, SAE Int. Conference, Detroit, USA, SAE 950784, 1995
- Haimad, N., - A Theoretical and Experimental Investigation of the Flow Performance of Automotive Catalytic Converters, PhD thesis, Coventry University, 1997.
- Benjamin, S. F., Haimad, N., Roberts, C. A., Wollin, J., - Modelling the Flow Distribution through Automotive Catalytic Converters, Submitted to Proc. Inst. Mech. Engs., Part C, Journal of Mechanical Engineering Science, 2000.
- Küchemann, D., Weber, J., - Aerodynamics of Propulsion, McGraw-Hill Book Co. Inc. 1953.