Abstract
In this paper, the architecture of a safe stove with an automatic fire suppression function using a sound wave fire extinguisher has been proposed and developed for the first time. A microcontroller connected to a fire sensor detects and suppresses a fire by driving a fire extinguisher. The sound wave fire extinguisher is composed of a speaker and collimator, and is driven by a driver module including an audio amplifier. The attenuation of the sound wave is reduced by preventing the sound diffusion with an enclosure surrounding a stove. The frequency of the sound wave is set to 50 Hz, and the sound pressure of 93 dBA is measured at the distance of 0.5 m. It takes maximum 8 and 15 seconds to suppress the flame from 7-cc and 14-cc flammable liquid, respectively, which corresponds to 24% and 42% of the natural extinguishing time. Since the proposed safe stove is non-toxic and leaves no residues over the conventional ones, it would combine with various home appliances to suppress early-stage fires and prevent fire expansion.
| Translated title of the contribution | Development of Safe Stove System using Sound Wave Fire Extinguisher |
|---|---|
| Original language | Korean |
| Pages (from-to) | 34-39 |
| Number of pages | 6 |
| Journal | 한국화재소방학회 논문지 |
| Volume | 32 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2018 |