Since sound waves can move oxygen and fire through pressure from their vibrations, this specific frequency of sound wave works to separate the flame molecules from the surrounding oxygen, effectively starving the fire and snuffing out the flame.
Fighting fire with fiyah. Two engineering students from George Mason University in Virginia have stunned their professors by inventing a …
Fighting Fire with Sound: Wave Extinguisher – ESO
Countless public demonstrations and a handful of lab tests later, researchers are still struggling to determine exactly how sound snuffs flames. Sound travels in waves, which are simply variations of pressure in a medium—whether solid, liquid or gas. The energy from vibrating objects, such as speaker membranes, moves from particle to particle in the air in a repeating …
People Also Ask how do sound waves extinguish fire
Can sound waves be used as a fire extinguisher?
Since traditional extinguishers used in zero gravity spray contents in all directions, it’s incredibly difficult to target a flame. But since sound waves can be directed without gravity, using the bass frequencies could be an ideal solution.
Why do sound waves put out fire?
Since sound waves can move oxygen and fire through pressure from their vibrations, this specific frequency of sound wave works to separate the flame molecules from the surrounding oxygen, effectively starving the fire and snuffing out the flame.
What frequency do fire extinguishers use?
Specifically, bass frequencies between 30 and 60 Hz. While the concept of extinguishing flames with waves is not completely new, a handheld extinguisher had yet to be developed and mass-produced.
Can ultrasound be used as a tool against fires?
Previous attempts to use ultrasound as a tool against flames – including efforts by the U.S. Defense Advanced Research Projects Agency (DARPA) – had proven unsuccessful and the two students were met with skepticism from peers and faculty when choosing this as a research project.
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Sound Wave Fire Extinguisher | The Henry Ford's Innovation Nation Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher