Project Name : Blowing fires by Blasting Sound: Extinguishing fire using Acoustic Fields
Project Theme: Community Health & Environment
Objective/Aim:
To analyse the causes of interaction of sound waves with fires
To develop cost effective machinery to be able to harness sound waves as a viable fire extinguisher
Scientific Principle Involved:
Mechanics of longitudinal waves, Resonance, Elasticity of gases
Material used:
Plastics, Metals
Working Investigation/Findings: There is a sweet spot for fire extinguishment, i.e. a fire is most easily suppressed at a specific frequency. For example, we found by experimentation 60 Hz is the
sweet spot for a butane fire at 1 atm. Fires tested were put out in under 1 seconds, at time periods as low as 0.7 seconds.
Utility and further scope of the project:
1. Model prepared can be used to effectively douse medium-sized fires using acoustic fields. This is specifically applicable to rural areas since our technology is self-sustaining.
2. Application in urban settings could include fire extinguishment
in the IT industry, research labs, and other fires in contained chambers.
Name of the School: Springdales School, Dhaula Kuan, New Delhi.
