持ち込み可燃物の指数関数による火災成長モデル

摘要

The early stages of a fire are simulated using a fire-growth model based on an exponential function. The model is verified by carrying out combustion experiments with urethane foam. Heat release rates predicted by the model are in good agreement with a wide range of observed heat outputs from urethane foam. Even with different sources of ignition, the growth rate of a fire fits the same exponential function. Furthermore, the heat release rate of burning chairs and Christmas trees is also shown to fit the exponential function.%火災初期における持ち込み可燃物の火災成長モデルとして、現在我国では一般的に二次関数モデルが用いられている。しかし、二次関数モデルは小さな発熱速度から大きな発熱速度までを同じ火災成長率で表すには無理がある。