설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제14권3호
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  • Pages.247-253
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  • 2002
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

터널화재시 자연환기에 의한 연기거동에 관한 실험적 연구

An Experimental Study of Smoke Movement in Tunnel Fires with Natural Ventilation

  • 김충익 (중앙대학교 기계공학부) ;
  • 유홍선 (중앙대학교 기계공학부) ;
  • 이성룡 (중앙대학교 기계공학부 대학원) ;
  • 박현태 (중앙대학교 기계공학부 대학원)
  • 발행 : 2002.03.01
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초록

In this study, reduced-scale experiments were conducted to analyze smoke movement in tunnel fire with roof vent. The 1/20 scale experiments were carried out under the Froude scaling using gasoline pool fire ranging from 7.3 to 15.4 cm in diameter with total heat release rate from 1.0 to 8.46kw. In case of 1 m high vent, smoke front reached to the tunnel exit at about 16 sec delayed with ventilation. The delay time grew longer with the vent height. The temperature after the vent was lower than that without the vent. The exit temperature declined maximum of $20^{\circ}C$ after passing the vent. It was confirmed that the thickness of smoke layer was maintained uniformly under the 25% height of the tunnel through the visualized smoke now by a laser sheet and the digital camcorder.

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참고문헌

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