特集 —進化する消火技術
音波による水を使わない新規消火方法
キーワード:
Sound waves,
Fire extinguishing,
Fire spread control,
New fire extinguishing method,
Extinguishing strategies
2023 年 65 巻 211 号 p. 17-23
詳細
2023 年 65 巻 211 号 p. 17-23
This paper introduces recent developments in new and innovative fire extinguishing methods that use sound to extinguish fires. There are examples of relatively low frequency sound acting as a traveling wave against the fire extinguishing target. Many studies have been conducted on pool flames because they are designed for normal fires. The flow created by the sound pushes and bends the flame, triggering it to be extinguished. Recently, fire extinguishing methods have been proposed that use higher frequency sound as a traveling or standing wave. In this case, the nonlinear effects of high frequencies are utilized to successfully extinguish the fire. Both methods are limited in the extent to which they can extinguish a fire at one time. If a larger area is desired to be extinguished, a “Extinguishing strategy” that effectively moves the firefighting area is needed.
