Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

A Estimation of Thermal Fatigue Performance in Three-way Catalyst

삼원 촉매의 열적 내구 성능 평가

  • Lee, Sung Riong (Department of Materials and Metallurgical Engineering, Kangwon National University) ;
  • Cho, Seok-Swoo (Department of Vehicle Engineering, Kangwon National University)
  • 이성룡 (강원대학교 재료금속공학과) ;
  • 조석수 (강원대학교 자동차공학과)
  • Received : 2012.07.09
  • Accepted : 2013.01.10
  • Published : 2013.01.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study examines thermal safety on three-way catalyst that dominates 70% among whole exhaust gas purification device in 2003. 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 strength reduction factor and failure probability.

국내 승용차용 삼원촉매의 경우 열적 내구성을 만족시키지 못하고 조기 파손되는 사례가 증가하고 있다. 이것은 차량의 배기가스 정화장치의 신뢰성에 치명적 손상을 유발시키므로 삼원촉매의 내구성 평가 모델을 파악할 필요가 있다. 따라서 본 연구에서는 세라믹 모노리스 담체에서 발생되는 열응력을 구한 뒤 강도저하계수모델과 파손확률을 기초로 삼원촉매의 열적 내구성을 평가하였다.

Keywords

References

  1. S.H. Baek, S.S. Cho, "Comparison of Experimental and Numerical Analysis for Durability Design Criteria in Ceramic Catalyst Substrate", Journal of the Korean Society for Precision Engineering, Vol. 27, No. 9, pp. 58-66, 2010.
  2. S.J. Jeong, S.J. Lee, W.S. Kim, and C.B. Lee, "Numerical Study on the Effect of Changes of Geometric Shape of Diesel Particulate Filter on Light-Off Characteristics and Transient Thermal Behavior during Regeneration", Trans. of the KSME(B), Vol. 14, No. 4, pp. 68-76, 2006.
  3. J.K. Park, and S.H. Chung, "Numerical Simulation of Self-Supporting Regeneration using Heating Wire Ignition of Diesel Particulate Trap", Trans. of the KSME(B), Vol. 7, No. 3, pp. 1-11, 1999.
  4. B.S. Baek, S.S. Cho, H.S. Kim, "Optimization Technique for the Inverse Analysis of Service Boundary Conditions in Porous Catalyst Substrate with Fluid-Structure Interaction Problems", Trans. of the KSME(A), Vol. 35, No. 10, pp. 1161-1170, 2011. https://doi.org/10.3795/KSME-A.2011.35.10.1161
  5. D.W. Lee and S.S. Cho, "Failure Load Prediction of Tunnel Support using DOE and Optimization Algorithm", KAIS, Vol. 13, No.4, pp.1480-1487, 2012. DOI: http://dx.doi.org/10.5762/KAIS.2012.13.4.1480
  6. S.H. Baek, H.J. Choi, K.H. Kim, S.S. Cho, "Identification of Thermal Flow Boundary Conditions for Three-way Catalytic Converter using Optimization Techniques", KAIS, Vol. 11, No. 9, pp. 3125-3134, 2010. DOI: http://dx.doi.org/10.5762/KAIS.2010.11.9.3125
  7. Hyundai Motors, 1993 Hyundai SONATA II Engine Workshop Manual, pp.14-16, Seoul, 1993.
  8. S.B. Baek, S.S. Cho, "An Effective Approach of Equivalent Elastic Method for Three-Dimensional Finite Element Analysi of Ceramic Honeycomb Substrates," Trans. of the KSME(A), Vol. 35, No. 3, pp. 223-233, 2011. https://doi.org/10.3795/KSME-A.2011.35.3.223
  9. Gluati, S. T., William, B., Nunan, J., and Anderson, K., "Fatigue and Performance Data for Advanced Thin Wall Ceramic Catalyst", SAE Tech. paper No. 980670, 2010.
  10. S.H. Baek, S.Y. Kim, S.S. Seung, H. Yang, W.S. Joo, and S.S. Cho, "Experimental Estimation of Thermal Durability in Ceramic Catalyst Supports for Passenger Car", KSME(A), Vol. 31, No. 12, pp. 1157-1164, 2007. https://doi.org/10.3795/KSME-A.2007.31.12.1157
  11. H.J. Choi, An Estimation of Thermal Fatigue in Three-way Catalyst using Thermal Flow and Structure Analysis, pp. 49-50, A Thesis for a Masterate, Kangwon National University, South Korea, 2010.

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