不活性ガスを充填したゴム風船の輸送速度とその効果

抄録

To develop a new firefighting method with an extinguishing capsule, the extinguishing experiments were performed using a rubber balloon filled with a physically-acting gaseous extinguishing agent (N2 and Ar gases). The rubber balloons were carried at an arbitrary speed to the extinguishing target by an electric linear slide actuator. A methane-air diffusion flame was used as the extinguishing target and formed on a porous burner. The extinguishing probability was measured by varying the inert-gas volume in and the transporting speed of the rubber balloon. From the experimental results, we have clarified the optimal speed range to extinguish the flame for each inert-gas volume.