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Journal of the Korean Society of Hazard Mitigation 2015;15(5):109-116.
Published online October 31, 2015.
복수 구획간의 수평 연소 확대 메카니즘에 관한 연구
신이철, 박계원, 유용호
A Study on Mechanism of Fire Spread between Rooms
Yichul Shin, Gyewon Park, Yongho Yoo
Abstract
This research study uses the multiple compartment model to conduct experiments with the objective of explaining the horizontal fire spreading behavior caused by fire plume behavior ejected from an opening that spreads from the fire compartment to an adjacent compartment in the spatial conditions where there are multiple fire plumes in the fire compartment. Through the experiment the temperature distribution inside the fire compartment and adjacent compartment according to the fire plume conditions were determined. Also a model for calculating the radiation heat that was received by the combustible material in the adjacent compartment was modeled, and by comparing the calculated values and the experiment values, the validity of the radiation heat calculation model was examined. Also using McCaffrey estimation, a simple prediction formula to calculate the adjacent compartment temperature up to point before the fire spread was proposed, and a similar trend was deduced as a result of comparing this estimation with the experiment values.
Key Words: Fire Plume Behavior Ejected from Opening; Model Experiment; horizontal fire spread; Heat Flux; Simple Prediction Formula
요지
본 연구는 복수 구획의 모형을 이용하여 화재 구획에 복수의 개구부가 있는 공간 조건에서 화재 구획으로부터 인접 구획으로 유출되는 개구 분출 열기류에 의한 수평 연소 확대 성상 해명을 목적으로 실험을 실시하였다. 실험을 통해 개구부의 조건에 따른 화재 구획 및 인접 구획 내의 온도분포를 파악하였다. 또한 인접 구획의 가연물이 받는 복사열의 계산을 모델을 구축하고 계산 모델의 결과와 실험값을 비교하여 복사열 계산 모델의 타당성을 밝혔다. 그리고 연소 확대 전까지의 인접구획의 온도를 McCaffrey 등에 의한 제안 식을 이용하여 간이 온도 예측 모델을 제안하고, 실험값과 비교한 결과 유사한 경향이 도출되었다.
핵심용어: 개구 분출 열기류; 모형실험; 수평 연소 확대; 복사열; 간이 온도 예측 모델


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