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Journal of the Korean Society of Hazard Mitigation 2014;14(2):7-14.
Published online April 30, 2014.
성능적인 화재안전설계를 위한 초기화재시의 화재성장률 예측에 관한 연구
서동구, 김동은, 김정희, 김동준, 권영진
A Study on the Prediction of Fire Growth Rate During Initial Fire for Performance Fire Safety Design
Dong Goo Seo, Dong Eun Kim, Jeong Hee Kim, Dong Jun Kim, Young Jin Kwon
Abstract
This study is experimentally examining initial fire behavior important for evacuation safety in order to establish performance-based fire safety design, centering on combustibles. Relation between fire load and heat release rate was examined through an experiment in order to establish a method that could predict initial fire behavior. Besides, initial fire behavior was investigated through comparison with the results derived from real scale fire experiment by using the conventional studied fire growth rate model. As a result, in case fire load was $12kg/m^2$ or over, it was difficult to be derived by using the conventional dynamics equation, but its regression equation could be derived through experimental study. Also, it was verified that a large effect was produced on the initial fire behavior according to the ignition source and arrangement of combustibles.
Key Words: Fire growth rate; Combustibles investigation; Performance-based design(PBD); Initial fire behavior
요지
연구는 국내 성능적인 화재안전설계의 구축을 위하여 피난안전에 중요한 초기화재성상에 대해 가연물특성을 중심으로 실험적으로 검토한 연구이다. 초기화재성상을 예측할 수 있는 방법을 구축하기 위하여 실험을 통해 화재하중과 열방출률과의 관계를 살펴보았으며, 또한 기존에 연구된 화재성장률모델을 이용하여 실규모 화재실험에서 도출된 결과와의 비교를 통해 초기화재성상을 고찰하였다. 그 결과, 화재하중이 $12kg/m^2$ 이상의 경우는 기존 역학식으로는 도출하기 어려웠으나, 실험적인 고찰로서 그의 회귀식을 도출할 수 있었다. 또한 가연물의 배치 및 착화원에 따라 초기화재성상이 크게 영향을 받는 것을 확인하였다.
핵심용어: 화재성장률; 가연물조사; 성능위주설계; 초기화재성상


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