지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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In order to improve extinguishing performance of water mist, many studies of additives have been conducted. In this study, viscosity agent which has the ability to improve extinguishing performance by adhering to the surface on fire was used and fluorine-free surfactant was also added to water to enhance water's wetting ability. This study aimed to verify optimal concentration of extinguishing of additives according to fire source and extinguishing performance by comparison with pure water. In case of wood crib fire, the results show that flame suppression and extinguishing time of sodium alginate 0.4 wt.% are 3.4 times and 2.2 times shorter than those of pure water in 0.2 MPa respectively. It seems that large amount of water adhere to surface on fire, thus cooling effect on surface was enhanced. Also water consumption of sodium alginate 0.4wt.% is up to 65% lower than that of pure water. In case of heptane fire, extinguishing time of cocobetaine 0.1 wt.% is 9.7 times shorter than that of pure water in 0.2 MPa. It is thought that because cocobetaine can block oxygen and suppress oil mist by making emulsion film on fire surface due to a low surface tension. On the other hand, water consumption of cocobetaine 0.1 wt.% is 92% lower than that of pure water.
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참고문헌 (10)
참고문헌 신청
B. Downie / 1995 / Interaction of a Water Mist with a Buoyant Methane Diffusion Flame / Fire Safety Journal 24:359~381
J. M. Park / 2006 / Extinguishing Characteristics of Water Mist Containing Alkail Metal Agent
D. W. Goo / 2011 / Research on the Use of Rain Water during Fire Suppression
S. Walkinshaw / 2009 / Use of Sprinklers and Aqueous Gel for Structure Protection from Wildfire Case Study 2 / FP Innovations Advantage 11(3):1~12
E. Wilson / 2008 / Tactical Wheeled Vehicle Tire Fire Extinguishing Agent Test Report
J. M. Park / 2006 / Extinguishing Characteristics of Water Mist Containing Alkail Metal Agent
D. W. Goo / 2011 / Research on the Use of Rain Water during Fire Suppression
S. Walkinshaw / 2009 / Use of Sprinklers and Aqueous Gel for Structure Protection from Wildfire Case Study 2 / FP Innovations Advantage 11(3):1~12
E. Wilson / 2008 / Tactical Wheeled Vehicle Tire Fire Extinguishing Agent Test Report
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