• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.11a
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• pp.348-351
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• 2011

본 연구는 국내의 급격한 고령화추세 및 등록장애인수 증가에 따른 재해약자시설의 피난안전설계를 위한 기초연구로서 국내 재해약자시설의 화재사례 분석을 통한 문제점 도출과 화재발생 시 인명피해를 최소화 시키기 위해 가장 중요할 것으로 판단되는 피난개시시간 및 초기대응행동에 관한 국외연구사례를 분석하였다. 국내의 경우 피난행동특성에 관한 연구는 전무하며 또한 실제적인 성능설계나 피난계획이 미흡한 실정이므로 향 후 재해약자의 피난행동특성을 고려한 다양한 연구를 통한 DATA확보가 시급할 것으로 판단된다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.11a
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• pp.344-347
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• 2011

최근 대형화된 재난사고가 빈번히 발생하고 있으며 이에 따른 건축물의 피난설계가 중요시 되고 있지만 일반인에 비해 재해 시 피난이 곤란한 재해약자가 이용하는 시설에서의 성능설계나 피난계획은 미흡한 실정이다. 따라서 본 연구에서는 국내 장애인 복지시설을 대상으로 피난안전성평가를 실시하여 그 문제점을 도출하였으며 그 결과 장애인시설의 피난안전을 위해서는 피난개시시간, 엘리베이터 피난, 내장재, 발코니 유무, 출구 폭 등의 문제점에 관한 대책이 시급하며 또한 성능기반 피난안전설계 의무화가 우선시 되어야 할것으로 판단되었다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.11a
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• pp.99-102
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• 2011

본 연구는 일본 교토대학의 유전사회(有田史繪)의(2000년(年)) "화재시 고강도 콘크리트의 폭렬에 관한 이론적 연구(火災時における高强度コンクリ-トの爆裂に關する理論的硏究)"를 고찰 한 결과 콘크리트 압축강도 Fc[kgf/$cm^2$]와 밀도[kg/$cm^3$]가 분리되면, 열과 수분의 이동에 관련된 물성치가 예측되며, 해석 모델을 통해 해석된다. 이에 대하여 내부응력과 더불어 열특성, 콘크리트의 역학특성, 강재의 역학특성을 파악하여 내화설계를 구축을 위한 기초자료로 제시하였다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.10a
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• pp.21-24
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• 2010

화재시 고온에 고강도콘크리트가 노출되었을 경우에는 심각한 성능저하 및 손상이 발생할 가능성이 매우 높다. 화재시 고강도 콘크리트는 수밀성으로 인해 폭렬 현상이 더욱 심하게 발생할 것으로 판단된다. 열전도율은 전반적으로 물질과 열의 이동에 의존하며, 콘크리트 내부에서 물리 화학적 반응이 중요한 역할을 한다. 본 연구에서는 콘크리트의 공기량을 비교하면 실험값과 일치하는 해석 결과를 얻을 수 있었고 공극 중에서 함수와 온도를 고려해 해석하면 실험값과 일치하는 결과를 얻었다. 또한, 콘크리트의 열전도율의 해석 결과 $200^{\circ}C$이상의 고온에서 실험값과 일치하는 결과가 도출 되었다.

• Journal of the Korea Safety Management & Science
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• v.25 no.4
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• pp.87-94
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• 2023

This study analyzed and identified various causes of caustic alarms of 163 fire detectors that occurred from January 2019 to December 2021 at domestic semiconductor manufacturing plants equipped with about 30,000 fire detectors, and proposed a new non-fire prevention cause investigation plan by applying the NFPA 921 scientific methodology. The results of the study are as follows. First, in terms of necessary recognition and problem definition, an analog detector and an integrated monitoring system were proposed to quickly determine the location and installation space information of the fire detector. Second, in order to prevent speculative causes and errors in various analyses in terms of data analysis and hypothesis establishment, non-fire reports were classified into five by factor and defined, and the causes of occurrence by factor were classified and proposed. Finally, in terms of hypothesis verification and final hypothesis selection, a non-fire prevention improvement termination process and a final hypothesis verification sheet were proposed to prevent the cause from causing re-error.

• Journal of the Korean Society of Hazard Mitigation
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• v.10 no.4
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• pp.63-68
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• 2010

Utility-Pipe Conduit is, Housing and city effectively accommodate what they absolutely need power, communications, gas, pipeline, water supply, drainage, energy facilities etc, according to expansion of urban infrastructure are derived, several ways to solve problems in, collection facilities in place are maintained and managed facility. If Utility-Pipe Conduit is damaged, as well as national security, because their impact on society as a whole, by introducing large vulnerability in the fire prevention activities and suppression measures and disaster for our situation by introducing measures, comprehensive analysis of the fire risk, it shall establish fire prevention activities and suppression through analysis of Utility-Pipe Conduit design, institutional issues, the problem of fire protection facilities, fire spread phenomenon etc. Because of Utility-Pipe Conduit is an enclosed place, so incomplete combustion due to lack of oxygen supply that there are problem such dark smoke, carbon monoxide etc, toxic combustion products and heat generation and visual impairment is an issue difficult to enter. As well as fire prevention activities, the fire In light of the particularity of the under ground than above ground fire, so this phenomenon is weak fire fighting that fire to become effective fire fighting tactics, basically it is necessary difficulty softening, non-burn softening and prevent combustion expansion of the cable is installed on the Utility-Pipe Conduit, having to considering the specificity of the response command system and relevant organizations to establish an on-site, Structural identification and other information gathering required to record of Response agencies, keep air conditioning system 24 hours and strengthening Virtual Total Training of Response agen

• Geomechanics and Engineering
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• v.10 no.3
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• pp.297-314
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• 2016

With the mining depth continuously increasing, gas emission behaviors become more and more complex. Gas emission is an important basis for choosing the method of gas drainage, gas controlling. Thus, the accurate prediction of gas emission is of great significance for coal mine. In this work, based on the sources of gas emission from the heading faces and the fluid-solid coupling process, we established a gas continuous dynamic emission model, numerically simulated and applied it to the engineering. The result was roughly consistent with the actual situation and shows the model is correct. We proposed the measures of reducing the excavation distance and borehole gas drainage based on the model. The measures were applied and the result shows the overproof problem of gas emission disappears. The model considered the influence factors of gas emission wholly, and has a wide applicability, promotional value. The research is of great significance for the controlling of gas disaster, gas drainage and pre-warning coal and gas outbursts based on gas emission anomaly at the heading face.

• Fire Protection Technology
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• s.12
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• pp.36-46
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• 1992

This report is on how to extend the life of transformer and reduce losses resulted from fire and faiure of transformer through the proper maintenance and fire protection of Oil-insulated transformer

• Journal of the Korea Safety Management & Science
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• v.26 no.3
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• pp.71-82
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• 2024

In modern society, buildings are becoming more complex, and the population is becoming more densely populated. Such large buildings require a variety of evacuation measures, as there is a high possibility of large-scale human casualties due to increased evacuation distance and evacuation time in the event of a fire. Strobe light and exit sign light are used as important evacuation equipment to provide early warning and evacuation directions. In this thesis, we conducted a fire simulation assuming that a fire occurrence point notification function and a strobe light function were added to equipment such as visual alarms and evacuation guidance, and compared and analyzed the difference in evacuation completion time with existing equipment. The scenarios for the simulation were divided into "general fire situations" and "fire location and evacuation exit guidance situation" and the differences in evacuation completion time in the event of a fire were compared and analyzed for each floor from the 1st floor to the 3rd floor. The maximum travel distance to complete evacuation in the case of a fire on the first floor decreased by 80.6 m and the evacuation completion time decreased by 329.4 seconds, and the maximum travel distance to complete evacuation in the case of a second-floor fire decreased by 28.5 m and the evacuation completion time by 438.8 seconds. During the fire on the third floor, the maximum distance decreased until evacuation was completed to 3.4 m, and the evacuation completion time was reduced by 355.6 seconds. It is expected that if the congestion level of evacuation routes is reduced by utilizing the congestion level of evacuation exits when fire alarm systems and evacuation equipment are activated, the evacuation completion time will be further shortened and evacuations will be carried out quickly and safely.

• Proceedings of the Safety Management and Science Conference
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• 2006.11a
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• pp.325-336
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• 2006

This research analyzes clean room major fire prevention standard of clean Room (FM, IRI, and NFPA Code), the structure of Performance-Based Fire Safety Design (PBD) applied the korean fire industry situation. Performance-Based Fire Safety can operate effectively the performance of fire protection equipment & building design, so the fitness of fire safety system can be embodied by operating this. moreover, cost to be consume fire safety of real building can reduce and Performance-Based Fire Safety is considered to important technique in fire protection field. A fire in a clean room may cause a serious loss by spreading smoke particles. We will be investigated by using a computational fluid dynamics, for loss prevention by smoke spreading from one fire area to another for clean room and compared the Performance-Based Fire Safety Design with the prescriptive code design. The methodology of fire safety performance-based fire safety design and guarantee of many kinds design skill of fire system and developing design procedure will be very serious one in order to improve efficiency of domestic system. Therefore, This research will be contributing to secure safety of clean room and to set up the performance-based fire safety design in Korea by regulation for the performance-based fire safety design effectively.