매트 형태 연소촉매를 사용하는 촉매버너의 구조와 연소특성

Combustion Characteristics and Design of Fiber Mat Catalytic Burners

  • 송광섭 (한국에너지기술연구원 나노소재 연구센터) ;
  • 정남조 (한국에너지기술연구원 나노소재 연구센터) ;
  • 김희연 (한국에너지기술연구원 나노소재 연구센터)
  • 발행 : 2008.06.30

초록

매트형태의 연소촉매를 사용하는 촉매연소 버너는 발생 열을 원적외선 형태로 피 가열체에 공급할 수 있기 때문에 저온 공정에서 효율적으로 열을 사용할 수 있다. 매트형태 촉매연소 버너의 활용 가능성을 높이기 위해 촉매연소버너를 제작하고 구조에 따른 연소성능에 대해 고찰하였다. 확산식 촉매연소에서는 연소면의 방향이 연소반응에 많은 영향을 주며, 촉매 주위 온도변화에 따른 산소의 확산속도 차이가 촉매 연소 반응 속도에 많은 영향을 주는 것을 알았다. 예혼합 촉매연소에서 연소공기는 이론공기량 보다 조금 많게 공급하는 것이 최적이고, 연소열의 70% 이상이 복사로 전달됨을 알았다.

Flameless fiber mat catalytic burners have been known as an effective heat source in industrial drying processes since heat obtained from combustion can be transferred to absorptive body by far-infrared radiation. In order to extend the application of fiber mat catalytic burner, novel fiber mat catalytic burners were manufactured and combustion characteristics of them were investigated. For diffusive catalytic burners, the efficiency of combustion was significantly affected by the installation direction and the temperature of catalytic bed perimeter influenced on the diffusion rate of oxygen which determined the combustion efficiency of catalytic burner. It was seen in premixed catalytic combustion that air content in premixed fuel gas was optimized at slightly higher than theoretical amount of air. Combustion heat released higher than 70% by radiant heat in premixed catalytic combustion likewise diffusive catalytic combustion.

키워드

참고문헌

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