• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.04a
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• pp.194-199
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• 2008

현재 일반화재 및 산림화재에 따른 목조건축물 및 문화재 등에 화재가 확산 될 경우 일반 소화기 및 옥내 및 외소화전으로는 약제의 날림 및 다량의 물로 인한 수손피해 등으로 한계가 있으며, 이를 개선하기 위한 적합한 소화설비가 구비되지 못한 관계로 많은 어려움이 있으며, 이로 인하여 초기진화에 실패함으로 많은 인적 물적 피해가 발생되고 있다. 따라서 이러한 문제점들을 보완하기 위한 해결 방안으로 개인 휴대가 용의하고 간편한 청정 친환경소화시스템을 연구 하고자 한다.

• Fire Science and Engineering
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• v.24 no.6
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• pp.54-60
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• 2010

An experimental study has been carried out to determine the flow rate for a feasible N2 generator to extinguish the fire, and this study analogized the correlations to determine the flow rate for $N_2$ generator considered an Oxygen concentration, protected enclosure, discharging pressure and discharging time. We manufactured simple protected enclosure for analyzing fire-extinguishing performance of the $N_2$ generator. As a $N_2$ gas is exhausted on protected enclosure, a various of Oxygen concentration is measured to analyze fire-extinguishing performance experimentally. The correlations determined as an uncertainty analysis for the Oxygen concentration deviations of the theoretical and experimental value. The analogized correlations is Q = (21 $\times$ V)/($O_2+{\zeta}{\cdot}P$)-V. In case of $300m^3$ protected enclosure, 0.8 MPa discharging pressure and $40m^3$/min $N_2$ flow rate, the Oxygen concentration is decreased below 15% within 3 minutes.

• Fire Science and Engineering
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• v.24 no.2
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• pp.139-144
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• 2010

An experimental study has been carried out to investigate the possibilities of an industrial $N_2$ generator that it replace Halon series as a natural extinguishing system. And this study comparison design standard of gas series extinguishing system with natural extinguishing system. We manufactured simple protected enclosure for analyzing fire-extinguishing performance of the $N_2$ generator. As a $N_2$ gas is exhausted on protected enclosure, a various of Oxygen concentration is measured to analyze fireextinguishing performance experimentally. The results, in case of $100m^3$ protected enclosure and $5m^3$/min $N_2$ flow rate, the Oxygen concentration is decreased below 15% within 3 minutes. And so, the $N_2$ generator make full use of an suffocating extinguishing system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.904-905
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• 2014

일반 가정이나 산업 현장에서 화재가 발생할 경우 인명 피해와 재산 피해가 막대하다고 할 수 있다. 이러한 막대한 피해를 막기 위하여 국가에서는 소화방재를 위한 법적 검토와 소방 안전교육 및 피난훈련을 실시하고 있다. 그러나 대부분의 화제 현장에서의 초기 대응은 대부분 분말소화기에 의존하고 있는 실정이다. 현재 새롭게 개발된 청정 소화약제를 활용한 고체에어로졸(fixed aerosol) 소화장치를 개발하여 화재 방지시스템을 개발하고 있다. 본 논문에서는 고체에어로졸 소화장치의 활용에 있어서 불꽃감지센서 및 열 감지센서의 데이터를 활용할 수 있고, 화재 발생 현장에 대한 현장 데이터를 원격지에서 모니터링 할 수 있는 유무선통신기반의 제어기 모듈을 개발하여 원격지 화재 현장을 보다 효율적으로 대응할 수 있는 시스템을 개발하고자 한다.

• Journal of the Korean Society of Safety
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• v.23 no.6
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• pp.95-99
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• 2008

Halon was known as a cause of the ozone layer destruction. In 1987, it was designated as one of the ozone-layer-destroying materials in the Montreal Protocol. Therefore substitutes of Halon agent has been developed including inert gas extinguish system, which is one of the most widely used fire extinguishing system. This study intended to increase the efficiency of inert gas extinguishing agent by using inert gas additives. As IG-541 shows high extinguishing power, the experiment was performed to measure the effects of gaseous additives to it. Cup-burner fire extinguishing apparatus was used with n-Heptane fuel. Among many of pure inert gaseous agents, Helium showed the most excellent extinguishing power. When Helium was added to IG-541, fire extinguishing power was increased and the concentration of oxygen in chimney also risen. By adding Helium to IG-541, the effectiveness of inert gas fire extinguishing system is able to be increased.

• Journal of the Korean Society of Safety
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• v.23 no.6
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• pp.76-83
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• 2008

In the course of increasing in human and material damage caused by fire, it is an important research field to develop clean extinguishing agent which does no harm to global environment as well as has a good extinguishing efficiency. This research is a basic step to develop a new clean extinguishing agent. In order to get a satisfactory result, we tested fire extinguishing ability using nitrogen and Novec mixtures gas which are inert gas and new clean extinguishing agent. We used Cup Burner Test made by international standard ISO-14520 regulations of gaseous extinguishing agent ability test, and the fuels used in the test are n-heptane, methanol, ethanol, iso-propanol and 1-butanol. The experimental results of flame extinguishing concentration are n-heptane 6.54%, methanol 8.47%, ethanol 6.98%, isopropanol 6.10% and butanol 6.54% by pure Novec agent. So the finding is that a new clean agent, Novec has an efficient extinguishing ability in a state of gas. Also, in a test as to mixtures gas of nitrogen and Novec, it has a good result for minimum oxygen concentration is under 16%.