火災被害予測に与える火源モデルの影響と改善対策

抄録

This paper examines the feasibility of adopting conventional “heat-release-rate prescribed” fire source model to predict the potential fire damage in early (developing) stage of the fire. Numerical experiments are performed to investigate the difference in the time-variation of heat flux onto the ceiling, if any, between following two models; one is real fire model (with-flame, with-radiation) and the other is conventional fire mode (without-flame, without-radiation). Results show the predicted heat flux onto the ceiling are under-estimated when the conventional model is adopted, suggesting that the conventional model is not conservative and might not be suitable to predict the fire fighting strategy. The cause of the difference is discussed and the potential engineering model to compensate such difference is proposed.