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김민형 ( Minhyung Kim ),이주혁 ( Joohyuk Lee ),신창섭 ( Changsub Shin ) 충북대학교 산업과학기술연구소 2016 산업과학기술연구 논문집 Vol.30 No.1
The extinguishing experiment was performed using the alkali as an additive to improve the performance of the low ressure water mist fire extinguishing system. KHCO3 and NaHCO3 were used as alkali metallic salts, and extinguishing time and amount of water ejected were measured for class A fire. In case of using additives, the fire extinguishing time was shorter than that of pure water at a given discharge pressure and the amount of water ejected was also reduced. It was because of the momentum increase of a water droplet containing additives and the chemical extinguishing effect. By using alkali metal agent, the extinguishing time and improvement of the consumption of water can be reduced.