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Journal of Korean Institute of Fire Science and Engineering 2008;22(5):29-34.
Published online December 31, 2008.
지하철 승강장 급배기 조건에 따른 화재 위험성 평가
김하영, 이동호, 김정엽
1인천대학교 안전공학과 대학원2인천대학교 안전공학과3한국건설기술연구원
Fire Risk Assessment for Subway Station According to Supply and Exhaust Conditions
Kim Ha-Young, Rie Dong-Ho, Kim Jung-Yup
요약
본 연구에서는 대피자의 최적 배연조건 확립을 위하여 CFD모델을 이용한 수치해석을 통해 지하철 승강장 내에서의 화재 시 다양한 배연조건에서의 화재 위험성을 검토하였다. 결과로 스크린도어를 설치한 경우가 설치하지 않은 경우보다 온도의 상승폭이 최대 $65.37%{sim}74.97%$ 낮게 나타났다. 또한 급기나 압인배기시 승강장에 난류가 발생함에 따라 온도 및 연기층이 교란되어 하락됨에 따라 탈출시 위험을 유발할 수 있는 것으로 판단되었다. 따라서 배연용량 및 승강장 공간 설정시 배연조건에 따른 화재 특성을 고려한 설계가 필요하다.
Abstract
In this research, to establish the emission for the people who are clearing out, through the numerical analysis using the CFD model, the dangerousness has been investigated in the various emission conditions in a station platform. As a result of research, it is found out that the temperature variation falls between 65.37% and 74.97% to compare without installation of platform screen doors. In the addition, with the supply mode or push-pull mode, the warm current is generated in the platform so the temperature and the layer of smoke are stirred up and felled off. It will make the dangerousness when the people escape. Therefore, when the capacity of emission and the space of platform is set up, the design regards the properties of the fire emission.
Key Words: Subway station, CFD, Fire risk assesment, Screen door
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