• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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• pp.107-108
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• 2013

In this study, combustibles investigation and fire growth rate experiment were performed for predicting initial fire behavior in buildings. Combustibles investigation was performed for residential buildings, which is most frequently affected by fire in Korea. Spatial characteristics and combustibles properties were separately investigated, and occupied area and layout characteristics of combustibles were identified to produce general layout models. Of the layout models, room was selected for fire test of a single compartment. From this test, fire propagation for each combustible was identified, which was delayed compared to the summed heat release rate of a single combustible.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2002년도 추계학술대회논문집
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• pp.139-146
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• 2002

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 전기설비
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• pp.37-38
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• 2006

In this paper, the fire characteristics of circuit breakers for low voltage during switching arcs were analyzed according to the characteristics of combustible materials. Arc dispersion and ignition process were taken by high speed imaging system and digital camera. In this experiment, four resistors were connected as loads. To discover the fire characteristics of circuit breakers by combustible materials, ethanol and cotton were installed as combustibles near contacts respectively. In case of ethanol, fire broke out near the contacts while switch was turned on and turned off. Whereas, in case of cotton, fire broke out near deteriorated contacts while switch was turned off.

• 한국화재소방학회논문지
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• 제17권4호
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• pp.36-41
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• 2003

본 연구에서는 지하공동구 및 트레이에 설치된 케이블의 화재시 화염전파를 막기 위해 사용되고 있는 수성 및 유성계 난연도료의 도포 두께별 연소특성을 파악하기 위해 연기밀도(ASTM E 662)와 산소지수 (ASTM D 2863) 시험법을 이용하여 실험을 수행하였다. 본 연구 결과, 난연도료의 연소특성은 다음과 같다. (a) 난연도료의 최적 두께는 수성계의 경우 1.5∼2mm, 유성계의 경우 0.2mm 것으로 나타났다. (b) 연기밀도는 Non-flaming방식보다 Flaming방식에서 더 높게 나타났다. (c) 연기밀도와 산소지수를 측정한 결과 수성계 난연도료가 유성계 난연도료 보다 연소특성이 우수한 것으로 나타났다. (d)수성 및 유성계 난연도료의 산소지수가 규격(30이상)에 만족함을 알 수 있었다.

• International Journal of Air-Conditioning and Refrigeration
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• 제12권1호
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• pp.30-36
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• 2004

The present study investigates the fire suppression characteristics using a water mist fire suppression system. Numerical simulations of fire suppression with water mist are performed with considering the interaction of fire plume and water spray. The predicted temperature fields of smoke layer are compared with those of measured data. Numerical results agree with the experimental results within $10^{\circ}C$ in the case without water mist. In the case of fire suppression with water mist, numerical results do not predict well for temperature field in the gradual cooling region after water mist injection. But the predicted results of initial fire suppression are in good agreement with those of measured data. The reason for the discrepancy between predicted and measured data is due to the poor combustion modeling during the injection of water mist. More elaborate models for numerical simulation are required for better predictions of the fire suppression characteristics using water mist.

• 한국안전학회지
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• 제20권2호
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• pp.11-17
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• 2005

Rotational motion in the atmosphere around a fire may have a profound influence on the fire plume. This process underlies the occurrence of fire whirls. Fire whirls are rare but highly destructive phenomenon which were observed in a large forest, urban and building fires. The present study aims to investigate of the effect of rotation Strength on the fire whirl characteristics expeimentally. Experiments are performed for various sizes of fire source with different rotation strength. From the experimental observations, it is noted that the mean centerline temperature is gradually increased and mean radial temperature is decreased as increases rotation strength. The characteristic mean flame height of fire based on the visible observation is increased as increases of dimensionless swirl parameter, $\Omega/\alpha$, represented by swirl induced motion to buoyancy driven motion.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권3호
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• pp.1301-1314
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• 2018

In this paper, we present a low-cost fire detection system using a thermal camera and a smartphone. The developed system collects thermal and RGB videos from the developed camera. To detect fire, candidate fire regions are extracted from videos obtained using a thermal camera. The block mean of variation of adjacent frames is measured to analyze the dynamic characteristics of the candidate fire regions. After analyzing the dynamic characteristics of regions of interest, a fire is determined by the candidate fire regions. In order to evaluate the performance of our system, we compared with a smoke detector, a heat detector, and a flame detector. In the experiments, our fire detection system showed the excellent performance in detecting fire with an overall accuracy rate of 97.8 %.

• 한국화재소방학회논문지
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• 제29권5호
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• pp.57-66
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• 2015

본 논문은 단자대에서 단일원인 및 복합원인에 의한 전기화재위험성을 규명하기 위한 연구이다. 우선적으로 단일원인인 접촉불량에 의한 화재위험성을 측정하기 위해 조임토크변화 및 접촉저항변화에 따른 열적특성을 분석하였다. 또한, 복합원인에 의한 화재위험성을 측정하기 위해 접촉저항변화에 따른 가속트래킹 실험을 실시하여 접촉불량과 트래킹의 화재연관성을 확인하였다. 실험결과 단일원인의 경우 접촉불량상태의 조임토크 및 접촉저항 크기가 증가할수록 열적특성이 뚜렷하게 나타나는 것을 확인할 수 있었고, 접촉저항변화에 따른 열적특성이 조임토크변화에 따른 열적특성보다 그 특성이 더 잘 나타났다. 또한, 복합원인의 경우 단자대 접촉불량과 트래킹은 상호연관성을 가지고 있으며, 두 가지의 복합적인 원인이 서로 작용될 경우 기존의 단일원인의 전기화재 위험성보다 상대적인 위험성이 더욱 높게 나타나는 것으로 도출되었다.

• 한국화재소방학회논문지
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• 제8권2호
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• pp.16-26
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• 1994

This Research developes the principles in apartment fire safty planning, suitable to the fire characteristics of apartment. On the base of the principles, alternative proposals are suggested to unreasonable provisions in Fire Protection Codes.

• 한국방재학회 논문집
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• 제10권4호
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• pp.69-79
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• 2010

소방산업은 화재와 재난으로부터 국민의 생명과 재산을 보호하는 중요한 역할을 담당하고 있다. 최근 들어 국내 소방산업은 일본, 미국 등 소방산업 선진국의 소방산업에 대하여는 품질 및 기술 경쟁에서 어려움에 부딪쳐 있고, 중국 등 소방산업 후진국에 대하여는 가격경쟁력 등이 취약하여 소방산업 발전에 어려움을 겪고 있어 이에 관한 연구가 필요한 실정이다. 본 연구의 목적은 소방산업계의 특성을 분석하여 발전 방향을 제시하는데 그 목적이 있다. 본 연구에서 제시된 발전방향은 앞으로의 소방산업 발전을 위한 목표설정, 육성방향을 통해 소방산업의 진흥 발전 실행에 실제 적용이 가능할 것이다.