Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on the Temperature Distribution at the Surface of Diesel Particulate Filter and Partitioned Electric Heater according to the Conditions of Heating and Flow using an Infrared Temperature Camera

적외선 온도 카메라를 이용한 분할형 전기히터 가열 및 유동 조건에 따른 전기히터와 매연필터 표면에서의 온도 분포에 관한 연구

  • Lee, Choong-Hoon (Department of Automotive Engineering, Seoul National University of Technology) ;
  • Paik, Sung-Chon (Graduate School of Railroad, Seoul National University of Technology)
  • 이충근 (서울산업대학교 자동차공학과) ;
  • 박성천 (서울산업대학교 철도전문대학원)
  • Published : 2008.10.31
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Abstract

The temperature distribution in a surface of diesel particulate filter(DPF) was measured using an infrared temperature camera. In order to regenerate the DPF, five partitioned electric heaters were used for heating the ceramic filter. The five partitioned heaters were switched on/off with some time interval one the other. The surface temperature distribution in the ceramic filter and electric heaters were measured with varying both the electrical power supply to the heaters and the mass flow rate of the air supply from a blower. The higher mass flow rate in the DPF system enhanced the uniformity in the surface temperature distribution of the ceramic filter due to effective convection heat transfer. The flow in the monolith ceramic structure of the DPF move mainly in the axial direction, which could be identified from the surface temperature of the ceramic filter.

Keywords

References

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