• Title/Summary/Keyword: Fire wall

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A study on Fire Case and Countermeasure of Tourist Hotel (관광호텔의 화재손해 위험관리방안 - 화재발생현황과 대형화재사례 분석 중심)

  • Han, Sukman;Son, Jung Hyoun;Kim, Jong Won
    • Journal of the Society of Disaster Information
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    • v.8 no.4
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    • pp.362-375
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    • 2012
  • Tourist hotels are equipped with facilities such as accommodation and restaurants, exercise, recreation. Unspecified guests, visitors and management of tourist hotels are very vulnerable on the casualties and property losses due to fire peril exist. In this study, we analysis that the fire statistics status of tourist hotels from 2001 to 2010. And the 15 cases of a large hotel fire are reviewed. The total number of fires on hotel are consist of a hotel rooms fire(33.2%), a restaurant kitchen fire(11.8%). And the major causes of the fire are an electrical fire (40.8%), a cigarette fire (14.5%) and a hot-work fire (9.2%). In case study, the fire wall defect and combustible materials are major fire loss causes for 10year. Each tourist hotels are needed a development of suitable fire risk management and a field operations. A hotel is required an active fire risk management on a preventive inspection, an education and training, and a preventive maintenance. It is necessary that a fire wall maintenance to prevent of the spread of a fire and a sprinkler installation of whole area to protect fire. And it is very important an emergency response for evacuation of guest, and operate emergency procedures on a fire or emergency situation.

Numerical Analysis of the Temperature Distribution Considering the Wall Thermal Conductivity in Compartment Fire (구획 화재 시 벽면의 열적 특성을 고려한 온도분포 해석결과)

  • You, Woo Jun;Ko, Kwon Hyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.2
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    • pp.644-648
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    • 2019
  • This study examined effects of the wall thermal conductivity coefficients on the thermal fluid phenomenon of a compartment fire. The reduced scale compartment was 0.4 m in width, 0.6 m in length and 0.6 m in height with a fire-board, which has a thermal conductivity coefficient of $0.18W/m{\cdot}K$. The local temperature at a 0.37 m height and the overall heat release rate were measured under the following experiment conditions: a $0.12m^2$ opening area and $0.01m^2$ pool size of a gasoline fire. The numerical results obtained by the Fire Dynamic Simulation were compared with the experimentally measured temperature. The deviations were within 10 % in the period of the steady state for maximum heat release rate (4.8 kW). The numerical results show that the average temperature of the compartment wall decreases by approximately 71 % with increasing thermal conductivity coefficient from $0.1W/m{\cdot}K$ to $100.0W/m{\cdot}K$ on the fixed heat release rate.

A Case Study on Fire Investigation for a Wood-Burning Stove in an Idyllic House (전원주택의 벽난로와 관련된 화재사례의 분석)

  • Lee, Eui-Pyeong
    • Fire Science and Engineering
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    • v.29 no.6
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    • pp.119-128
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    • 2015
  • A fire broke out in a working wood-burning stove and destroyed an idyllic house about two years after it was built. This study analyzed data provided through the court by the fire station, police station, fire insurance investigation agency, house construction company, and wood-burning stove maker Based on the fire pattern of low-temperature long-term ignition that remained in the studs, the fire was found to be caused by the conduction of heat in the fire box to the studs of the wall next to the wood-burning stove. A fire simulation showed that the low-temperature long-term ignition of the studs next to the wood-burning stove occurred because a hole was not made for ventilation in the chimney.

Numerical Study On Combined Natural Convection-Radiation In Partially Open Square Compartments with A Heater (발열체가 있는 열린 공간내에서의 자연대류-복사열전달 현상에 관한 수치적 연구)

  • 손봉세;한규익;서석호;이재효;김태국
    • Fire Science and Engineering
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    • v.9 no.1
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    • pp.10-19
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    • 1995
  • Study on combined natural convection-radiation In partially open square enclosures filled with absorbing-anisotropic scattering media is performed. A heater block located in the enclosure causes the natural circulation of the fluid in the enclosure which results In significant in-flow of the cold fluid through the partially open wall. Four different locations of the heater are considered to observe the effect of the heater locations on the resulting heat transfer. Results obtained from the combined convection-radiation analyses show much stronger circulation of t he fluid inside the enclosure as compared to those obtained from the pure convection analyses. As the ratio of the open area is Increased, the inflow of the cold fluid and the circulation of the fluid inside the enclosure is increased causing lower fluid temperature Inside the enclosure. It is shown that the location of the heater influences the circulation and heat transfer significantly by showing stronger circulations and more uniform temperature distributions for the cases where the heater is located on the bottom wall as compared to those for the cases where the heater is located on the upper part wall of the enclosure. For pure absorbing medium, the expected circulation in the fluid is relatively week as compared to those with absorbing-scattering medium due to the smaller wall heating as the radiant heat is used to heat the fluid instead. The forward anisotropic scattering phase function is shown to increase the fluid circulation further as compared to the isotropic scattering medium.

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A Study on the Development of Fire Extinguishing System for Machinery Spaces of a Small craft (무인기관실에 효과적인 자동소화장치개발 관한 연구)

  • Lee, Chan-Jea;Kang, Dae-Sun;Kim, Dong-Suk;Kwark, Ji-Hyun
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • 2006.06a
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    • pp.127-128
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    • 2006
  • A study developing the dry powder fire extinguishing system inside the simulated machinery spaces of small boats was performed. Fire tests were conducted inside the compartments having volumes 2.9, 4.5, $8m^3$ respectively. The openings and fans were established on the walls of the compartments. Diesel oil was used for the test fuel, In addition fire extinguishing nozzles using dry powder were installed downward at ceiling and horizontally at the wall or conner. All fires in the test were extinguished under system activation and there was no reignition.

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A Study on the Safety Standard of Architectural Glass and Curtain Wall (국내외 건축용 유리 및 커튼월의 안전 기준에 관한 연구)

  • Kim, Ji-Yeong;Kim, Nam-Hyuk;Kim, Dong-Eun;Seo, Dong-Goo;Kwon, Young-Jin
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.04a
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    • pp.163-167
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    • 2010
  • 최근 건축물의 초고층화에 따른 커튼월 시공에 따라 유리의 비중이 증가하고 있다. 커튼월 구조는 바람, 지진 등에 취약하며, 화재 안전성에 있어서도 취약할 것이라 판단되므로, 국내외 건축용 유리 및 커튼월의 안전기준에 대한 조사를 실시하였다. 그 결과 국내의 유리 기준은 단열 및 내풍압 성능에만 집중되어있으며, 화재 및 지진, 안전성능에 대한 기준이 미비하며, 커튼월에 대한 안전대책은 전무한 실정이다. 따라서 외국의 사례와 같이 초고층에서 커튼월의 안전성능을 고려한 설계프로세스나 안전 기준의 세부화가 필요하다고 판단된다.

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The Evaluation of Fire Endurance of Glazing Systems with Automatic Sprinklers (자동 스프링클러로 보호된 창의 내화 성능 평가에 관한 연구)

  • Lee, Chang-Seop;Chang, Sok-Hwa;Kim, Hong;Jung, Ki-Chang
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1998.11a
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    • pp.73-76
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    • 1998
  • To use glazing systems protected by automatic sprinklers as fire barriers in building compartmentation, fire endurance tests of these systems have been performed by several research workers. Most of the tests concerned the types of glasses and sprinklers, sprinkler water flow rate, and sprinkler activation time. Horizontal side wall sprinklers and window glazing systems with a vertical center mullion were mainly applied in the tests. In the study, full-scale fire endurance tests were carried out to verify the ability of large glazing systems divided by a horizontal mullion and protected by pendent vertical sprinklers. The result shows that the protrusive length of the horizontal mullion, which is perpendicular to the glass surface, is the main parameter that determines the fire resistance rating of the systems. The mullion obstructs the water flow in the glass.

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Numerical Simulation of Propylene Vertical Wall Fires (프로필렌 수직벽화재의 수치시뮬레이션)

  • Park, Woe-Chul
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2009.04a
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    • pp.404-409
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    • 2009
  • 수직벽 화재 예측의 정확성을 확인하기 위하여 화재 시뮬레이션용 전산유체역학 모델인 Fire Dynamics Simulator를 프로필렌 수직벽 화재에 적용하였다. 단위면적당 연소율 $7.0{\sim}29.29g/m^2-s$에 대한 버너 중심에서 측정한 온도분포와 비교한 결과, 최고온도가 낮게 예측되는 것 외에는 실험과 잘 일치하였다. 또 연소율의 증가에 따라 경계측의 두께가 일관되게 증가하였다.

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Study on the Development of Protective Walls to prevent the spread of Ultra-Fast Fire in Small Industrial Facilities (소규모 산업시설의 초고속 화재 확산 방지를 위한 방호벽체 개발 연구)

  • Choe, Gyeong-Choe;Kim, Hong-Seop2
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.275-276
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    • 2023
  • This study introduces the current progress of study on the development of protective wall aimed at preventing the spread of ultra-fast fires and ensuring fire safety in industrial facilities.

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