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Experimental Estimation of Thermal Durability in Ceramic Catalyst Supports for Passenger Car

승용차용 세라믹 촉매 담체의 열적 내구성의 실험적 평가

  • 백석흠 (동아대학교 대학원 기계공학과) ;
  • 김성용 (강원대학교 산업대학원 자동차공학과) ;
  • 승삼선 (강원대학교 자동차공학과) ;
  • 양협 (강원대학교 자동차공학과) ;
  • 주원식 (동아대학교 기계공학과) ;
  • 조석수 (강원대학교 자동차공학과)
  • Published : 2007.12.01

Abstract

Ceramic honeycomb structures have performed successfully as catalyst supports for meeting hydrocarbon, carbon monoxide and nitrous emissions standards for gasoline-powered vehicles. Three-way catalyst converter has to withstand high temperature and thermal stress due to pressure fluctuations and vibrations. Thermal stress constitutes a major portion of the total stress which the ceramic catalyst support experiences in service. In this study, temperature distribution was measured at ceramic catalyst supports. Thermal durability was evaluated by power series dynamic fatigue damage model. Radial temperature gradient was higher than axial temperature gradient. Thermal stresses depended on direction of elastic modulus. Axial stresses are higher than tangential stresses. Tangential and axial stresses remained below thermal fatigue threshold in all engine operation ranges.

Keywords

Ceramic Catalyst Supports;CTE(Coefficient of Thermal Expansion);MOR(Modulus of Rupture);Thermal Durability;Thermal Stress;Threshold Stress

References

  1. Matzumoto Rempei, 2002, Introduction to Environment Technology in Automobile, Grandprix Publication, Tokyo, pp. 40-68
  2. Kim Seongyong, 2007, Thermal Analysis of Three-way Catalyst Ceramic Substrate for Passenger Car, Master Thesis, Kangwon National University, Korea, pp. 1-4
  3. Baek, S. H., Cho, S. S., Shin, S. G., and Joo, W. S., 2006, '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 https://doi.org/10.3795/KSME-A.2006.30.11.1392
  4. Gulati, S. T., and Merry, R. P., 1984, 'Design Consideration for Mounting Material for Ceramic Wall-Flow Diesel Filters,' SAE Paper No. 840074
  5. Helfmstine, J. D., 1980, 'Adding Static and Dynamic Fatigue Effects Directly to the Weibull Distribution,' Journal of the American Ceramic Society, Vol. 63, Issue 1-2, pp. 113 https://doi.org/10.1111/j.1151-2916.1980.tb10667.x
  6. Gulati, S. T., 2001, 'Design Consideration for Advanced Ceramic Catalyst Supports,' SAE Paper No. 2001-01-0493
  7. Gulati, S. T., 1985, 'Long-Term Durability of Ceramic Honeycomb for Automotive Emissions Control,' SAE Paper No. 850130
  8. Gulati, S. T., 1983, 'Thermal Stresses in Ceramic Wall Flow Diesel Filters,' SAE Paper No. 830079
  9. Timoshenko, S. P., and Goodier, J. N., 1970, Theory of Elasticity: 3rd edition, McGraw-Hill, New York
  10. Rawson, H., 1951, 'A Theory of Stresses in Glass Butt Seals,' British Journal of Applied Physics, Vol. 2, No.6, pp. 151-156 https://doi.org/10.1088/0508-3443/2/6/302
  11. Nomura, H., Jang B. K., and Matsubara, H., 2005, 'A Report on Sintering Simulation of SiC Honeycomb Ceramics,' Materials Research and Development Laboratory in Japanese Fine Ceramics Center, pp. 24-28
  12. Clarkson, R. J., Benjamin, S. F., Jasper, T. S., and Girls, N. S., 1993, 'An Integrated Computational Model for the Optimisation of Monolith Catalytic Converters,' SAE Paper No. 931071
  13. Gulati, S. T., Williamson, B., Nunan, J., and Anderson, K., 1998, 'Fatigue and Performance Data for Advanced Thin Wall Ceramic Catalysts,' SAE Tech. Paper No. 98067
  14. Gulati, S. T., and Sherwood, D. L., 1991, 'Dynamic Fatigue Data for Cordierite Ceramic Wall-Flow Diesel Filters,' SAE Tech. Paper No. 910135
  15. Gulati, S. T., Hampton, L. E., and Lambert, D. W., 2002, 'Thermal Shock Resistance of Advanced Ceramic Catalysts for Close-Coupled Application,' SAE Paper No. 2002-01-0738
  16. Helfinstine, J. D., and Gulati, S. T., 1985, 'High Temperature Fatigue in Ceramic Honeycomb Catalyst Supports' SAE Paper No. 852100

Cited by

  1. Probabilistic Estimation of Thermal Fatigue Performance of Three-Way Catalyst Substrate vol.38, pp.6, 2014, https://doi.org/10.3795/KSME-A.2014.38.6.669
  2. Optimization Techniques for the Inverse Analysis of Service Boundary Conditions in a Porous Catalyst Substrate with Fluid-Structure Interaction Problems vol.35, pp.10, 2011, https://doi.org/10.3795/KSME-A.2011.35.10.1161