Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Numerical Analysis of Effective Turbocharger and Baffle on Flow Field in Warm-up Catalyst for Diesel Vehicles

디젤자동차용 웜업촉매 내의 유동장에 미치는 터보차저 및 배플의 영향에 관한 수치해석

  • Choi, Byung-Chul (School of Mechanical Systems Engineering, Chonnam National University) ;
  • Juhng, Woo-Nam (School of Mechanical Systems Engineering, Chonnam National University) ;
  • Kang, Chang-Hyuk (School of Mechanical Systems Engineering, Chonnam National University) ;
  • Wi, Dae-Woong (School of Mechanical Systems Engineering, Chonnam National University)
  • 최병철 (전남대학교 기계시스템공학부) ;
  • 정우남 (전남대학교 기계시스템공학부) ;
  • 강창혁 (전남대학교 기계시스템공학부) ;
  • 위대웅 (전남대학교 기계시스템공학부)
  • Published : 2008.09.01
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Abstract

Diesel vehicle is growing in importance in light-duty sector as a way of reducing greenhouse gases due to improved fuel economy. Carbon monoxide, gas-phase hydrocarbon and organic fraction of diesel particulates can be oxidized to harmless products using a diesel warm-up catalyst (WCC). This study investigated the effect of a turbocharger and a baffle on flow fields and temperature distributions in the WCC for Diesel vehicles by a numerical analysis. In the case of the WCC with the turbocharger, velocity vectors and temperatures of inlet of the WCC have the relatively homogeneous distributions by the swirl generated from the turbocharger. Velocity vectors and temperatures of inlet of the WCC with the turbocharger and the baffle have the improved distributions in homogeneity compared with the case of the WCC without the baffle. The homogeneous flow field and the temperature distribution in the WCC may contribute to improve the conversion performance of the catalysts.

Keywords

References

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