An Experimental Study on Effect of a Partitioned Electric Heating on Temperature Distribution in a Diesel Particulate Filter

분할형 전기히터 가열이 디젤 차량 배기가스저감장치 필터 내의 온도 분포에 미치는 영향에 관한 실험적 연구

  • 이충훈 (서울산업대학교 자동차공학과) ;
  • 박상천 (서울산업대학교 철도전문대학원)
  • Published : 2008.04.30

Abstract

The DPF temperature distribution which has a great effect on regenerating the ceramic filter effectively was measured at 30 locations using K-type thermocouples. Five partitioned electric heaters were used for heating the ceramic filter and they are switched ON/OFF in order. Also, the temperature distribution in the ceramic filter was measured with varying the electrical power supply to the heaters and the mass flow rate of the air supply from a blower. The uniform distribution of the air flow velocity at the inlet of the DPF make that of the temperature in the ceramic filter. The difference in heating ability between the partitioned heaters had a great effect on the temperature distribution in the ceramic filter.

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