• 한국재난정보학회 논문집
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• 제8권4호
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• pp.401-410
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• 2012

목조한옥은 가연성의 재질로 구성되어 있어 화재라는 측면에서 취약하며, 방화의 경우 화재의 성상 초기부터 화원의 규모가 다양하게 나타날 수 있다. 본 연구는 국내 목조문화재의 화재 소화에 적용하고 있는 저압의 미분무 소화시스템의 소화성능을 확인하기 위하여 소화실험을 수행하였다. 소화실험의 유형은 화원의 규모별 및 한옥의 규모별로 구분하였고 소화시간을 확인하여 소훼의 정도를 평가하였다. 실험결과 소화성능이 문화재 규모에서 중요한 차이는 없었으며, 화원의 규모가 0.5단위 이하의 작은 화재에 대하여 소화효과가 나타났고, 화원의 규모가 1단위 이상에서는 소화능력이 현저히 부족하였다. 실제 목조문화재의 화재 성장 환경이 소화실험 모형보다 취약하다는 측면을 고려해볼 때, 미분무 소화설비를 목조한옥에 대한 범용 자동소화설비로 적용하기 위하여 소화성능 면에서 충분한 검증이 요구된다.

• 한국화재소방학회논문지
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• 제15권1호
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• pp.34-40
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• 2001

가스계 혼합소화약제의 소화성능을 검토하기 위하여 Cup-burner test장치를 설치하고 이성분계 및 삼성분계 혼합물의 불꽃소화농도를 측정하였다. 시험대상 이성분계 혼합물은 이산화탄소/HFC-23, 이산화탄소/HCFC-22, 이산화탄소/HFC-227ea, 이산화탄소/HFC-125, 이산화탄소/FIC-13I1, Hexafluoropropylene/HFC-23이고 삼성분계 흔합물은 이산화탄소/HFC-237HFC-l34a, 이산화탄소/HFC-23/HFC-227ea, 이산화탄소/HFC-23/HFC-125이다. Cup-burner test장치에서 측정된 가스계 혼합물의 소화농도는 단일성분의 소화농도와 혼합물의 구성비로 이루어진 모델에 의해 잘 예측됨을 알 수 있었다. 특히 이 모델은 혼합물의 구성성분이 물리적 소화성능을 지닐 때 잘 적용되며 화학적 소화성능의 영향이 강해질수록 측정값과의 오차가 커진다.

• International Journal of Aeronautical and Space Sciences
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• 제1권1호
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• pp.62-69
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• 2000

Present study deals with performance analysis of an inert gas generator (IGG) which can be used as effective means to suppress fire. The IGG uses a turbo-jet engine to generate inert gas for fire extinguishing. It is generally known that a less degree of oxygen content in the product of combustion will increase the effectiveness of fire extinguishing. An inert gas generator system with water injection has advantages of suffocating and cooling effects that are very important factors for fire extinguishing. Some aspects of influencing parameters, such as, air excess coefficient, compressor pressure ratio, air temperature before combustion chamber, gas temperature after combustion chamber, mass flow rate of water injection etc. on the performance of IGG system are investigated.

• 대한안전경영과학회지
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• 제11권1호
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• pp.15-26
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• 2009

This research has so far found out problems including the second damage of extinguishant and the short time of emission when using the existing dry chemical extinguisher and gas type extinguisher, and impossibility of constant extinguishing due to the inability of recharge at the field. To solve such problems, a mobile water mist system was developed and used. However, it is judged that more improved mobile water mist system is necessary because the force of the fire changed diversely and remote villages in mountains or islands where the force of fire extinguishing is short or delayed, require high capacity of fire extinguishing. Therefore a new equipment was developed and tested focusing on the improvement of extinguishing capacity and the performance of extinguishing was found out to be improved, compared to the existing mobile water mist system. It also showed a superior extinguishing capacity to dry chemical extinguisher or gas type extinguisher. Afterward an additional research is required of simplification of equipment, price cutting and the development of additive to enable high performance even with just small extinguishant.

• 한국안전학회지
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• 제21권6호
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• pp.46-54
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• 2006

Fire extinguishing experiment was conducted with water mist nozzle in case of the pool fire, cascade fire and spray fire on flammable liquid of class B whether water mist system can be effective system for power transformer fire scenario. In the event of a pool fire, flow rate and time to extinguish was inclined to be increased according to the obstruction rate of ignition space. Furthermore, the performance of fire extinguishing depended upon the spraying angle of the nozzles. In case of cascade fire, the effect of extinguishment was began to show from a combustion pan filled with fuel and fuel flowing plate later on.

• 방재기술
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• 통권14호
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• pp.5-12
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• 1993

This report is explained about test results of carbon dioxide extinguiching system components and pack-age type system (Kits) for automatic fire extinguishing system. A carbon dioxide system may be used to protect one or more hazards or hazards by menas of directional valves. Package system shall be installed to protect hazards within the limitations. The testing program was progressed by three items, external oppearance test, performance test and Total Flooding Fire Extinguishing System test. The object of this report is present the problem which apperar from the analysis of test results.

• 한국터널지하공간학회 논문집
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• 제22권6호
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• pp.655-667
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• 2020

본 연구의 최종 목적은 자율형 초동진압 소화체계의 성능평가 기준(안) 제시에 있다. 본 연구에서는 현재 개발단계에 있는 자율형 초동진압 소화제계의 성능기준 제시를 위해 현재 국내 건축물에 적용되는 소방설비의 법적 성능기준 및 국외 선행연구를 기반으로 유사 제품의 성능기준을 비교분석하였다. 또한 이를 기반으로 자율형 초동진압용 소화체계에 요구되는 최소한의 성능기준을 제시하였다. 본 연구의 결과를 기반으로 자율형 초동진압용 소화체계의 성능평가를 수행 후 현장적용 시 화재에 보다 신속한 대응이 가능할 것으로 판단된다.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2009년도 춘계학술논문발표회 논문집
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• pp.165-171
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• 2009

A compound agent that mixes inert gas agents and halocarbon agents and a complex fire suppression system using the compound agent have been developed. The ultimate goal of this study is to develop the extinguishing agent which doesn't destroy the ozone layer and has low GWP and to develop the fire suppression system. As a result of the test and research for inert gas agents and halocarbon agents, nitrogen and FK-5-1-12 were selected finally and have been tested and studies for three years. Thus, the optimal extinguishing agent and fire suppression system have been accomplished. The performance of the agent and system was tested according to KFI performance test technical standards for gas fire extinguishing system and the fitness of the agent and system for a fire was certified by Korea Fire Industry Technology Institute (KFI).

• 한국화재소방학회논문지
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• 제21권1호
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• pp.69-73
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• 2007

본 연구에서는 천연계면활성제 조성물의 친환경적인 포소화약제를 개발하였으며, 소화성능과 환경친화성을 검증하기 위한 방법으로 한국소방검정공사에서 제시하는 "수동식소화기의형식승인및검정기술기준"에 의한 A2단위 소화능력시험과 안전성평가연구소(한국화학시험연구원)에서 제시하는 육생식물생장실험 및 어류급성독성실험을 수행하였다. 그 결과, 소화성능은 A급 일반화재 5단위, 육생식물생장실험에서 발아에 대한 $LC_{50}$은 75(g/kg), 생장에 대한 $EC_{50}$은 62(g/kg), 어류급성독성실험에서 6658 ppm의 결과를 보여, 현재 국내에서 상용화되어 있는 타 약제보다 월등한 것으로 나타났다. 또한 약제로써의 활용을 위한 기본 물성치 및 내부식성에서도 기준에 적합한 결과를 나타내었다.

• 연구논문집
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• 통권29호
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• pp.5-15
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• 1999

Present study deals with performance analysis of an inert gas generator (IGG) which is to be used as an effective mean to suppress the fire. The IGG uses a turbo jet cycle gas turbine engine to generate inert gas for fire extinguishing. It is generally known that a lesser degree of oxygen content in the product of combustion will increase the effectiveness of fire suppressing. An inert gas generator system with water injection will bring advantages of suffocating and cooling effects which are considered as vital factors for fire extinguishing. As the inert gas is injected to the burning site, it lowers the oxygen content of the air surrounding the flame as well as reduces the temperature around the fire as the vapour in the inert gas evaporates during the time of spreading. Some important aspects of influencing parameters, such as, air excess coefficient. $\alpha$, compressor pressure ratio, $ pi_c$, air temperature before combustion chamber, $T_2$, gas temperature after combustion chamber, $T_3$, mass flow rate of water injection, $M_w$, etc., on the performance of IGG system are investigated. Calculations of total amount of water needed to reduce the turbine exit temperature to pre-set nozzle exit temperature employing a heat exchanger were made to compare the economics of the system. A heat exchanger with two step cooling by water and steam is considered to be better than water cooling only. Computer programs were developed to perform the cycle analysis of the IGG system and heat exchanger considered in the present study.