• Journal of the Society of Disaster Information
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• v.12 no.4
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• pp.342-349
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• 2016

The objectives of this study is analysis of the characteristics of fire risk and survey of narrow dwelling space(the Karaoke, Gosiwon etc). The narrow dwelling space has special structure characteristics; the narrow and the complex escape rote. Gosiwon have very separate and exclusive space room, so have the problem a suppression of fire. Furthermore almost Karaokes located in basement have a complex and limitary escape rote. Therefore we should research and development the exploration equipment that search a source of the fire and a emergency rescuer in the scene of the fire.

• Fire Science and Engineering
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• v.32 no.4
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• pp.42-49
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• 2018

In this study, in order to investigate whether or not the emergency broadcasting sound generated from an emergency broadcasting speaker is clearly transmitted to the occupant through architectural sound simulation, when the loudspeaker for emergency broadcasting is installed at intervals of 25 m according to NFSC 202 for a rectangular hallway. The sound pressure level and speech intelligibility index were analyzed according to changes in building finishing materials. With a reflective material finishing, sound pressure level satisfied the standard while speech intelligibility index was low. As a result of applying the sound absorbing material finishing, clarity and speech transmission index was improved to a level that could be understood by the occupant, whereas the sound pressure level delivered to the occupant decreased in the same space.

• Fire Science and Engineering
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• v.30 no.1
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• pp.86-95
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• 2016

Weight-bearing building materials are substantially weakened under high temperatures, and this is evident through the collapse of structures once engulfed by fire. Currently, there is no scientific or technological process of evaluating the real-time structural stability of a building whcih is engulfed by flame. There are many building design specifications which aim to reduce the risk of fire, but little consideration given to fire officer safety while operating in a dangerous building. This paper aims to provide direction within building policy in order to ensure the safe evacuation of fire-fighters in case of an impending building collapse. This paper suggests evaluation criteria for buildings which are damaged due to fire, autilizing current information on fire-resistant building design and a fire-resistant capacity.

• Fire Science and Engineering
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• v.28 no.5
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• pp.30-36
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• 2014

The pressurized smoke control system in the vestibule is important for fire safety in buildings because it is concerned with egress time of people and the safety of fire fighters. The vestibule pressurization system can prevent smoke from entering the vestibule using differential pressure when fire doors are closed and using the egress velocity when fire doors are open. Air supplying units in the vestibule need to be arranged by taking account of the location of doors and the volume of the vestibule in order to assure the uniform air egress velocity through a fire door when it is open. In this study, computational fluid dynamics (CFD) simulations were conducted for the vestibule where multiple doors are installed and it was found that the reverse flow occurs when the damper position in vestibule is not appropriate.

• Journal of the Society of Disaster Information
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• v.9 no.3
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• pp.332-338
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• 2013

Recently in Korea, in order to ensure evacuation safety within buildings, reviewing and evacuation assessment using computer simulations has been performed from the planning and design stages. Since the results from the assessment mainly depends on the initial values of input elements, it is important to establish element specific data. Nevertheless evacuation related experiments and research are still insufficient to apply overseas standards to domestic conditions. This study intended to conduct a experiment on evacuation movement speed by age as part of element-specific data construction for domestic occupant movement speed. After analyzing domestic and overseas studies on evacuation movement speed, we conducted the experiment of evacuation movement speed for 134 people. Then, by carrying out a comparative analysis of the results of the movement speed obtained from the experiment with overseas movement speeds, we followed the validation procedures of the experimental results under domestic evacuation conditions. The data derived from the experiment is expected to serve as a basis for the movement speed of domestic evacuation safety assessment.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.11a
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• pp.210-215
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• 2008

As the rapid and various changing of social aspects, the structures are getting bigger, higher and more complex. The importance of evacuation is on the rise as increased using frequency of multiplex area and it's high population density. According to the result of a survey with 2 domestic multiplex population density, the maximum was 0.43(人/$m^2$) and 0.51(人/$m^2$). considering evacuation dangerousness, the maximum value will be suitable for computation of evacuation capacity and this will be submitted as a basic data for computation of evacuation capacity.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 1998.05a
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• pp.113-118
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• 1998

현대에는 건물이 대형화, 고층화되어짐에 따라 많은 재실자들을 수용함으로써 대형 재난의 잠재적인 가능성을 가지게 된다. 더욱이 건물의 미적인 면과 효율성이 강조됨에 따라 재난시 재실자의 대피에 영향을 주는 통로와 사무 시설 배치등과 같은 방과 건물구조의 용도 변경이 잦아지게 되었다. 그러나 안전적인 측면에서 특히 재실자의 대피는 피난 법규의 요구이외에는 설계시 특히 건물 내부의 용도 변경시 피난의 상황은 중요하게 고려되어지지 않고 있는 실정이다. 이에는 설계자나 건물 관리인에게 있어서 안전의 개념의식이 미비한 점도 있지만 대피시의 상황을 예측할 수 있는 효율적인 프로그램의 개발이 적절히 이루어지지 않았기 때문이라고 생각되어 진다. 이에 본 논문은 동일 건물 구조하에서 재실자들의 대피 상황을 프로그램을 통하여 미리 제시함으로서 설계 및 건물구조 변경시 건물 구조의 효율성과 안전성의 적절한 조화를 꾀하는데 목적을 두고 있다. (중략)

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.04a
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• pp.255-258
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• 2008

본 연구에서는 이전의 연구를 통해 계단형 공동주택 화재 시 재실자 피난특성 및 연기거동에 관한 연구를 실물실험을 통해 수행한 바 있으나 이때 야기된 문제점들을 적절한 방재설비를 도입함으로써 일부 해소하고자 하였다. 따라서 본 연구에서는 이전의 연구와 동일한 대상 건물과 조건에서 수치해석을 수행하며 특히 계단실에 방재설비(배연팬 등) 설치 유 무에 따른 독성가스의 전파 특성 및 최상층까지의 도달시간등을 비교 검토하였다. 계단형 공동주택에서 층간에 배연팬이 설치되어 작동되는 경우가 배연팬이 없는 경우보다 약 45%의 CO 방출량을 줄일 수 있을 것으로 판단되지만 1층 출입구를 통해 유입되는 공기량은 배연팬이 없는 경우가 배연팬이 설치되어 작동되는 경우보다 약 23% 크기 때문에 이로 인해 제연풍속의 증가를 가져올 수도 있을 것이다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.04a
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• pp.273-276
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• 2008

As the rapid and various changing of social aspects, the structures are getting bigger, higher and more complex. The importance of evacuation is on the rise as increased using frequency of multiplex sale facility and it's high population density. According to the result of a survey with 4 domestic wholesales mart's population density, the average and maximum was 0.41(人/$m^2$) and 0.46(人/$m^2$). considering evacuation dangerousness, the maximum value will be suitable for computation of evacuation capacity and this will be submitted as a basic data for computation of evacuation capacity.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2012.04a
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• pp.361-364
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• 2012

최근의 건축물은 다양한 소재의 마감재를 사용함으로서 화재 발생시 다양한 연소가스를 배출한다. 이때 건축물 내부의 화재에 노출된 재실자는 열 및 화상의 위험성과 함께 연기 및 독성가스의 피해를 받기 쉽다. 본 연구에서는 건축물 화재시 발생될 수 있는 HCl에 대한 표준가스를 제작하여 가스유해성시험을 수행하고, HCl 표준가스에 노출된 실험용 쥐의 표적장기적출실험을 수행하였다. 이를 통해서 유독가스에 노출된 실험용 쥐의 해부를 통한 표적장기-심장(Heart), 간(Liver), 폐(Lung), 비장(Spleen), 신장(Kidney), 흉선(Thymus)-의 손상여부와 KS F 2271에 의한 평균행동정지시간과의 관계를 분석하였다.