Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Effects of the Geometry and Location of an Vertical Opening on the Fire Characteristics in the Under-Ventilated Compartment Fire

환기부족 구획화재에서 수직 개구부의 형상 및 위치가 화재특성에 미치는 영향

  • Mun, Sun-Yeo (Department of Fire & Disaster Prevention, Daejeon University) ;
  • Park, Chung-Hwa (Department of Fire & Disaster Prevention, Daejeon University) ;
  • Hwang, Cheol-Hong (Department of Fire & Disaster Prevention, Daejeon University) ;
  • Park, Seul-Hyun (Space Science Research Team, Aerospace Convergence Technology Research Laboratory (ACTRL), Korea Aerospace Research Institute (KARI))
  • 문선여 (대전대학교 소방방재학과) ;
  • 박충화 (대전대학교 소방방재학과) ;
  • 황철홍 (대전대학교 소방방재학과) ;
  • 박설현 (한국항공우주연구원 항공우주융합기술연구소 우주과학연구팀)
  • Received : 2013.02.20
  • Accepted : 2013.06.14
  • Published : 2013.06.30
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Abstract

To investigate numerically the effects of geometry and location of vertical opening on the thermal and chemical fire characteristics in full-scale under-ventilated compartment fires, the ventilation factor ($A\sqrt{h}$) to estimate a theoretical maximum inflow of ambient air and the mass loss rate in a heptane pool fire were fixed for all cases. It was shown that variations in door geometry affected significantly the change in thermal and chemical characteristics inside the compartment. Variations in window location resulted in the complex change in additional fire characteristics including the fire duration time and recirculating flow structure. These results were analyzed in details by the multi-dimensional flow and fire characteristics including the vent flow and fuel/air mixing phenomena.

실규모 환기부족 구획화재에서 수직 개구부의 형상 및 위치변화에 따른 열 및 화학적 화재특성 변화를 수치적으로 검토하기 위하여, 이론적 최대 공기 유입량을 결정하는 환기인자($A\sqrt{h}$)와 heptane pool 화재의 질량 감소율이 모든 조건에 대하여 동일하게 설정되었다. 주요 결과로서, 출입문 형상의 변화는 구획 내부의 열 및 화학적특성 변화에 큰 영향을 미친다. 창문 위치의 변화는 화재지속시간 및 재순환 유동구조를 포함한 추가적인 화재특성의 복잡한 변화를 초래하였다. 이들 결과는 개구부 유동 및 연료/공기의 혼합현상을 포함한 다차원 유동 및 화재특성을 통해 상세히 분석되었다.

Keywords

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