Observation of the Flame Extinction of Pool Flame with Deep Fuel Depth by CO₂ Hydrate

Abstract

We conducted the flame extinction experiments for the pool flame with deep fuel depth in the thermally stable glass container by using the ice, dry ice, CO₂ hydrate as a flame extinguisher. Methanol and 1-hexanol are used as a fuel. The boiling point of the methanol is lower than that of the water, while that of the 1-hexanol is higher. Motion of the flame extinguisher was observed by a high-speed camera. When the flame extinguisher except CO₂ sank into the fuel.