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Exhaust Flow Characteristics of Catalytic Converter Adapted to Exhaust Manifold

배기매니폴드 직접부착 촉매장치의 배기 유동특성

  • 박영철 (한양대학교 기계공학부) ;
  • 이창식 (신성대학 기계ㆍ자동차 계열)
  • Published : 2003.07.01

Abstract

The exhaust gas flow in the inlet collector of close coupled catalyst(CCC) adapted to the exhaust manifold is very complex flow because the exhaust gas is a pulsation flow with several port flow. The distribution of gas flow and temperature in inlet collector effect to the efficiency of catalytic converter. In this study, it measures temperatures on several point in inlet collector with two kind of inlet collector volume. And it analyzes with CFD to exhaust manifold and close coupled catalyst for temperature and flow. Comparing to measured and analyzed result, it find increasing of collector volume effects to catalyst temperature distribution and uniformity of catalytic converter

Keywords

References

  1. Pfalzgraf, B., Rieger, M. and Ottowitz, G., 1996, ' Close-coupled Catalytic Converters for Compliance with LEV/ULEV and EG III Legislation-Influence of Support Material, Cell Density and Mass on Emission Results,' SAE Paper 960261
  2. Kwak, Y. H., Lim, M. T. and Choi, B. C., 1998, 'Aging Characteristics of Automotive Catalyst,' Autumn Conferences of KSAE pp210-215
  3. Schmidt, J., Waltner, A., Loose, G., Hirschmann, A. and Wirth, A., 1999, 'The Impact of High Cell Density Ceramic Substrates and Washcoat Properties on the Catalytic Activity of Three Way Catalysts,' SAE 1999-01-0272
  4. Andersen, P. J. and Rieck, J. S., 1997, 'Advances in Pd Containing Three Way Catalyst Activity,' SAE Paper 970739
  5. Haral Bressler, Rammoser, D., Neumaier, H., and Terres, F., 1996, 'Experimental and Predictive Investigation of a Close Coupled Catalyst Converter with Pulsating Flow,' SAE Paper 960564
  6. Young-Seok Cho, Duk-Sang Kim and Young-Chul Joo, 2001, 'A Study of Measurement and Analysis of Flow Distribution in a Close-Coupled Catalytic Converter,' Transactions B of KSME, vol 25 No. 4 pp533-539
  7. Weltens, H., Bressler, H., Frank Terres, Hubert Neumaier, and Detlev Rammoser, 1993 'Optimization of Catalytic Converter Gas Flow Distributions By CFD prediction,' SAE Paper 930780
  8. Han-Sang Kim, Sang-Bong Park, Cha-Lee Myung, Kyoung-Min Cho and Kum-Jung Yoon, 1999, 'A Study of Flow Characteristics Inside the Two Types of Exhaust Manifold CCC Systems,' SAE 1999-01-0457
  9. Yoshizawa, K., Mori, K., Arai, K. and Kawashima, J., 1999, 'Numerical Analysis of the Exhaust Gas Flow and Heat Transfer in Close-Coupled Catalytic Converter Systems during Warm-up,' SAE Paper 9935798
  10. Korea Research Institute of Standards and Science, 1998 'KRISS Guide to the Expression of Uncertainty in Measurement.'