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Numerical study of fluid flow and effect of inlet pipe angle In catalytic converter using CFD

Author Affiliations

  • 1 School of Mechanical and Building Sciences, VIT University, Vellore– 632 014, Tamil Nadu, INDIA

Res. J. Recent Sci., Volume 1, Issue (7), Pages 39-44, July,2 (2012)

Abstract

Catalytic converter has become a necessity to achieve low emissions in all the vehicles. The design of catalytic converter has become critical which requires a thorough understanding of fluid flow inside the catalytic converter. In this paper, an attempt has been made to study the effect of fluid flow due to geometry changes using commercial CFD tool. The study has been conducted assuming the fluid to be air. A section of catalytic converter has been solved for analysis due do its rotational symmetry. The substrate region is modeled as a porous medium. The governing equations namely conservation of mass, momentum will be solved for analysis. The predicted numerical results are validated with those available in literature. The analysis involved determining back pressure across the converter system for mass flow rates and inlet pipe angle. The numerical results were used determine the optimum geometry required to have a uniform velocity profile at the inlet to the substrate.

References

  1. Howitt J.S. and Sekella T.C., Flow Effects in Monolithic automotive Catalytic Converters, SAE paper 740244, (1974)
  2. Wendland D.W., and Matthes W.R., Effect of Head Truncation on Monolith Converter Emission-Control Performance, SAE paper 922340, (1992)
  3. Hwang K., Lee K., Mueller J., Stuecken T., Schock H. and Lee J.C., Dynamic Flow Study in a Catalytic Converter Using LDV and High Speed Flow Visualization, SAEpaper 950786, (1995)
  4. Lee S., Bae C., Lee Y. and Han T., Effects of Engine Operating Conditions on Catalytic Converter Temperature in an SI Engine, SAE paper 2002-10-1677, (2002)
  5. Cho Y.S., Lee Y.S., Kim D.S., Jung S.Y. and Ohm I.Y., An Alternative Method for Fast Light-Off of Catalysts – Cranking Exhaust Gas Ignition, SAE paper 2002-01-1678, (2002)
  6. Gregory D., Read M., Campbell B., Inman G., Nice G., Hims R., Rabinowitz H., Tauster S., and Collin T., Emissions Implications of a Twin Close Coupled Catalyst System Designed for Improved Engine Performance on an In-line 4 Cylinder Engine, SAE paper 2001-01-1092, (2002)
  7. Onorati A., Ferrari G., and Derrico G., 1 D Unsteady Flows with Chemical Reactions in the Exhaust Duct-System of SI Engines: Predictions and Experiments, SAE paper 2001-01-0939, (2001)
  8. Jeong S.J., and Kim W.S., Three-Dimensional Numerical Study on the Use of Warm-up Catalyst to Improve Light-Off Performance, SAE paper 2000-01-0207, (2000)
  9. Jinke Gong, Longyu Cai, Weiling Peng and Jingwu Liu, Yunqing Liu, Hao Cai and Jiaqiang E, Analysis to the Impact of Monolith Geometric Parameters on Emission Conversion performance Based on an Improved Three-way Catalytic Converter Simulation Model, SAE paper 2006-32-0089 (2006)
  10. Bassem H. Ramadan and Philip C. Lundberg,Characterization of a Catalytic Converter Internal Flow, SAE paper, 2007-01-4024 (2007)
  11. Karthikeyan S., Hariganesh R., Sathyanandan M., Krishnan S., Computational and Experimental Investigation on After-Treament Systems to Meet Future Emission Norms for Truck Applications, International Journal of Engineering Science and Technology, 3(4), 3314-3326 (2011)
  12. Kumar Krishan and Aggarwal M.L., A Finite Element Approach for Analysis of a Multi Leaf Spring using CAE Tools, Research Journal of Recent Sciences,1(2), 92-96, (2012)
  13. Dev Nikhil, Attri Rajesh, Mittal Vijay, Kumar Sandeep, Mohit, Satyapal and Kumar Pardeep, Thermodynamic Analysis of a Combined Heat and Power System, Research Journal of Recent Sciences,1(3),76-79 (2012)
  14. Wu Guojiang,Tan Song, CFD Simulation Of The Effect Of Upstream Flow Distribution on the Light-Off Performance of a Catalytic Converter, Elsevier, 46(13), (2005)