Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Characteristics of Heat Release Rate Predictions of Fire by a Fire Dynamics Simulator for Solid Combustible Materials

복합소재 고체 가연물의 화재 시 발생되는 열방출률의 FDS 예측 특성

  • Nam, Dong-Gun (R & D Laboratory, Korea Fire Institute) ;
  • Hong, Ter-Ki (Dept. of Mechanical System & Automotive Engineering Graduate School of Chosun University) ;
  • Ryu, Myung-Ho (Dept. of Mechanical System & Automotive Engineering Graduate School of Chosun University) ;
  • Park, Seul-Hyun (Department of Mechanical Engineering, Chosun University)
  • 남동군 (한국소방산업기술원 기술연구소) ;
  • 홍터기 (조선대학교 대학원 기계시스템.미래자동차공학과) ;
  • 류명호 (조선대학교 대학원 기계시스템.미래자동차공학과) ;
  • 박설현 (조선대학교 기계공학과)
  • Received : 2020.08.15
  • Accepted : 2020.08.19
  • Published : 2020.08.31
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Abstract

The heat release rate (HRR) of fire for solid combustibles, consisting of multi-materials, was measured using the ISO 9705 room corner test, and a computational analysis was conducted to simulate the fire using an HRR prediction model that was provided by a fire dynamics simulator (FDS). As the solid combustible consisted of multi-materials, a cinema chair composed primarily of PU foam, PP, and steel was employed. The method for predicting the HRR provided by the FDS can be categorized into a simple model and a pyrolysis model. Because each model was applied and computational analysis was conducted under the same conditions, the HRR and fire growth rate predicted by the pyrolysis model had good agreement with the results obtained using the ISO 9705 room corner test.

복합소재 고체 가연물의 화재발생시 발생되는 열방출률을 ISO 9705 룸코너 시험을 통해 측정하였고 Fire dynamics simulator (FDS)에서 제공하는 열방출률 예측모델을 이용하여 전산해석을 수행하였다. 복합소재 고체 가연물로는 PU폼과 PP, 철재로 대부분 구성되어있는 영화관 의자를 선정하였다. FDS에서 제공되는 열방출률 예측방법을 단순모델과 열분해 모델로 구분하고 각각의 모델을 적용하여 동일한 조건에서 전산 해석한 결과, 열분해 모델을 통해 예측된 열방출률과 화재성장율이 단순모델을 이용하는 경우에 비해 ISO 9705 룸 코너 시험을 통해 측정된 결과와 잘 일치함을 확인할 수 있었다.

Keywords

References

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