Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Comparison of Experimental and Numerical Analysis for Durability Design Criteria in Ceramic Catalyst Substrate

세라믹 촉매 담체의 내구 설계 기준에 대한 실험 및 수치해석의 비교

  • Beak, Seok-Heum (Department of Mechanical Engineering, Dong-A Univ.) ;
  • Cho, Seok-Swoo (Department of Vehicle Engineering, Kangwon National Univ.)
  • 백석흠 (동아대학교 기계공학과) ;
  • 조석수 (강원대학교 자동차공학과)
  • Received : 2010.04.22
  • Accepted : 2010.06.14
  • Published : 2010.09.01
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Abstract

This study examines thermal safety on three-way catalyst that dominates 70 % among whole exhaust gas purification device in 2003. Three-way catalyst durability in the Korea requires 5 years/80,000 km in 1988 but require 10 years/120,000 km after 2002. Three-way catalyst durability in the USA requires 7 years/120,000 km but require 10 years/160,000 km after 2004. Three-way catalyst maintains high temperature in interior domain but maintains low temperature on outside surface. Therefore this device shows tensile stress on outside surface. Temperature distribution of three-way catalyst was acquired by thermal flow analysis for predicted thermal flow parameter. Thermal stress analysis for three-way catalysis was performed based on this temperature distribution. Thermal safety of three-way catalyst was estimated by power law dynamic fatigue life estimation and strength reduction methods for thermal stress.

Keywords

References

  1. Shamim, T., Shen, H., Sengupta, S., Son, S. and Adamczyk, A. A., "A Comprehensive Model to Predict Three-way Catalytic Converter Performance," ASME J. Eng. Gas Turbines Power, Vol. 124, No. 2, pp. 421-428, 2002. https://doi.org/10.1115/1.1424295
  2. Pontikakis, G. and Stamatelos, A., "Three- Dimensional Catalytic Regeneration Modeling of SiC Diesel Particulate Filters," ASME J. Eng. Gas Turbines Power, Vol. 128, No. 4, pp. 421-433, 2006. https://doi.org/10.1115/1.2130732
  3. Lee, J. S. and Kim, N. Y., "Characterization of SCR System for Nox Reduction of Diesel Engine (II)," J. KSPE, Vol. 25, No. 11, pp. 83-89, 2008.
  4. Gulati, S. T., "Long-Term Durability of Ceramic Honeycombs for Automotive Emissions Control," SAE Paper No. 850130, 1985.
  5. Baek, S., Cho, S. S., Shin, S. G. and Joo, W. S., "Size Effect on the Modulus of Rupture in Automotive Ceramic Monolithic Substrate using Optimization and Response Surface Method," Trans. of the KSME(A), Vol. 30, No. 11, pp. 1392-1400, 2006.
  6. Baek, S. H., Kim, S. Y., Seung, S. S., Yang, H., Joo, W. S. and Cho, S. S., "Experimental Estimation of Thermal Durability in Ceramic Catalyst Supports for Passenger Car," Trans. of the KSME(A), Vol. 31, No. 12, pp. 1157-1164, 2007.
  7. Gulati, S. T. and Sherwood, D. L., "Dynamic Fatigue Data for Cordierite Ceramic Wall-Flow Diesel Filters," SAE Tech. Paper No. 910135, 1991.
  8. Rawson, H., "A Theory of Stresses in Glass Butt Seals," British Journal of Applied Physics, Vol. 2, No. 6, pp. 151-156, 1951. https://doi.org/10.1088/0508-3443/2/6/302
  9. Timoshenko, S. P. and Goodier, J. N., "Theory of Elasticity: 3rd edition," McGraw-Hill, 1970.
  10. Gulati, S. T., "Thermal Stresses in Ceramic Wall Flow Diesel Filters," SAE Paper No. 830079, 1983.
  11. ANSYS, "ANSYS Theory Reference Release 11.0," SAS IP, Inc., 2007.
  12. ANSYS CFX, "Release 11.0 User Manual," SAS IP, Inc., 2007.
  13. Baek, S. H., Park, J. S., Kim, M. G. and Cho, S. S., "A Study on Thermal Shock of Ceramic Monolitic Substrate," Trans. of the KSME(A), Vol. 34, No. 2, pp. 129-138, 2010.
  14. Helfinstine, J. D. and Gulati, S. T., "High Temperature Fatigue in Ceramic Honeycomb Catalyst Supports," SAE Paper No. 852100, 1985.
  15. Gulati, S. T., Williamson, B., Nunan, J. and Anderson, K., "Fatigue and Performance Data for Advanced Thin Wall Ceramic Catalysts," SAE Tech. Paper No. 980670, 1998.