• Title/Summary/Keyword: Fire analysis

Search Result 3,409, Processing Time 0.032 seconds

Analysis of the Working Conditions of Fire Protection Systems in the Goyang Bus Terminal Building Fire (고양종합터미널화재 시 소방시설의 작동실태 분석)

  • Lee, Eui-Pyeong
    • Fire Science and Engineering
    • /
    • v.32 no.3
    • /
    • pp.95-107
    • /
    • 2018
  • This study analyzed the working conditions of the fire protection system in the Goyang Bus Terminal fire based on the fire investigation results. The results were as follows. First, extinguishing using an indoor fire hydrant was not attempted immediately after the fire burned the ceiling urethane foam. Second, a sprinkler alarm valve was turn off and did not work in the repair work space of the 1st basement. On the other hand, the sprinklers in the $2^{nd}$ basement, $1^{st}$ floor, $2^{nd}$ floor, and $3^{rd}$ floor worked and prevented the fire from moving to stories other than the $1^{st}$ basement. Third, although an exit light worked normally, it was not installed in the exit from the waiting room in the $2^{nd}$ floor to the bus stop. This resulted in many casualties. Fourth, although a fire receiver sent an electrical signal to the fan controller of the smoke control system, it was treated manually in the fan controller and the fan in the $2^{nd}$ floor did not work.

Study on the effective response method to reduce fire risk of wood fuel heating system (화목 연료 난방설비의 화재 위험 감소 방안에 관한 이론적 연구)

  • Park, Kyong-Jin;Lee, Bong-Woo;Lee, Guen-Cull;Nam, Ki-Hun
    • Journal of the Korean Society of Industry Convergence
    • /
    • v.22 no.2
    • /
    • pp.163-171
    • /
    • 2019
  • Recently, rural housing in urban areas has been increasing due to the improvement of income level. With the increase of the construction of the power house, the installation of the heating system using the harmonious fuel for the purpose of heating and the beauty of the room is increasing rapidly. In addition to the increasing use of firewood heating equipment, the incidence of fire is also increasing. Analysis of the National Fire Data System of the Fire Department The result of the analysis of the National Fire Data System Many parts of the fire are incinerated by the accumulation of tar due to the incompleteness of periodic cleaning inside the cylinder. The distance between the fire extinguisher and the combustible materials such as ceiling, Resulting in fire. In addition, it was found that much of the fire of the firewood heating system in the time zone occurs during the sleeping and resting time and there is not enough time for the residents to cope. This, in turn, causes serious harm to the lives and property of the users of the pyrotechnic heating system. Therefore, in this study, domestic and foreign standards and laws related to fuel oil heating facilities were analyzed and 12 cases of fire accidents were analyzed. Through the revision of the fire prevention and firefighting facilities installation and maintenance law, the installation standards of the alarm and fire extinguishing facilities were presented.

A Study on the Thermal Analysis for Electrical Wire in Overload and Short of Low Voltage Wiring (저압 배선선로의 과부하 및 단락사고 발생시 전선의 열해석에 관한 연구)

  • 이상호;오홍석
    • Fire Science and Engineering
    • /
    • v.16 no.3
    • /
    • pp.56-60
    • /
    • 2002
  • Recently, with the growth of software for electro-thermal analysis, it has been studied the precise analysis and investigation of cause for the electrical fire using computer simulation on the basis of theory for electro-thermal analysis. But it is very lacking for the precise analysis and investigation of cause for the electrical fire. In this paper, we have simulated the thermal analysis for electrical wire according to the value of current in a overload and a short with the electrical wire of the L's company product(600 V VVF) using the electro-thermal finite element method(Flux2D).

The Application of Expert System in Fire Code Analysis (소방법규해석에 대한 EXPERT SYSTEM의 적용)

  • 김회천;손재열;김화중;박병윤
    • Fire Science and Engineering
    • /
    • v.3 no.3
    • /
    • pp.9-13
    • /
    • 1989
  • This paper realizers expert system which is searched most suitable system of the fire facilities by regulating of fire operating order And so, the user finds the inference, heuristic knowledge of the expert who has a mastery of application of the fire code objected protection, warning or extinguishing of fire. Although some expert systems utilize artificial intelligence such as LISP or PROLOG, this study utilizes M.1 that is available expert system development tool running with personal computer.

  • PDF

A practical approach for fire safety design of fire-resistant steel members

  • Li, Guo-Qiang;Ding, Jun;Sakumoto, Y.
    • Steel and Composite Structures
    • /
    • v.5 no.1
    • /
    • pp.71-86
    • /
    • 2005
  • Based on the test data of Nippon Steel Corporation, the formulas for calculating mechanical properties of fire-resistant (FR) steel at elevated temperatures have been established. A practical approach for fire safety design of FR steel members, including axially compressed members, flexural members and eccentrically compressed members, is developed in this paper. Compared with the full-scale specimen experiments and FEM numerical analysis, this practical approach for fire safety design of FR steel members is demonstrated to be effective and precise.

DATA BASE SYSTEM DEVELOPMENT AND STATISTICAL ANALYSIS OF EIR3 ACCIDENTS OF SEVERAL COUNTRIES

  • Kim, In-Tae;Kim, In-Won;Song, Hee-Oeul
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
    • /
    • 1997.11a
    • /
    • pp.319-326
    • /
    • 1997
  • The fire accident cases of several countries such as Korea, Japan, United States, etc., were collected and compared statistically. The trends of fire accidents in several countries will help us establish detailed plans for fire protection and reduce the possible fire accidents in the future. For construction of data base system, the program FADS was developed, which is operable in Windows environment.

  • PDF

Vulnerability Analysis on Fire Service Zone using Map Overlay Method in GIS (GIS 기반 중첩기법을 이용한 소방서비스 취약지역 분석)

  • Lee, Seul-Ji;Lee, Ji-Yeong
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.29 no.1
    • /
    • pp.91-100
    • /
    • 2011
  • Fire stations should be located in optimal location to act quickly in case of emergency and minimize damages as a public facility that protects life and property of local residents. Siting fire stations without regard for the accessibility and occurrence factors of an accident may provide fire service unequally. Therefore service analysis is necessary to reduce the blind spot of disaster and safety and to offer equal fire-service at this time. Especially fire stations can service more efficiently than before by reducing a more likely vulnerable area. This study suggests methods of mapping index of value that represents vulnerability of the occurrence of an accident and extracting service zone map of fire stations, as an initial research for offering efficient fire service. Geographical distribution mismatch between service zone map and vulnerability map is figured out and vulnerable area for fire service is defined by using map overlay method.

Application of FDS for the Hazard Analysis of Lubricating Oil Fires in the Air Compressor Room of Domestic Nuclear Power Plant (국내 원자력발전소의 공기 압축기실에서 윤활유 화재의 위험성 분석을 위한 FDS의 활용)

  • Han, Ho-Sik;Hwang, Cheol-Hong;Baik, Kyung Lok;Lee, Sangkyu
    • Journal of the Korean Society of Safety
    • /
    • v.31 no.2
    • /
    • pp.1-9
    • /
    • 2016
  • The standard procedure of fire modeling was reviewed to minimize the user dependence, based on the NUREG-1934 and 1824 reports. The hazard analysis of lubricating oil fires in the air compressor room of domestic nuclear power plant (NPP) was also performed using a representative fire model, FDS (Fire Dynamics Simulator). The area ($A_f$) and location of fire source were considered as major parameters for the realistic fire scenarios. As a result, the maximum probability to exceed the thermal damage criteria of IEEE-383 unqualified electrical cables was predicted as approximately 70% with $A_f=1m^2$. It was also found that for qualified electrical cables, the maximum probabilities of exceeding the criteria were 2% and 90% with $A_f=2$ and $4m^2$, respectively. It was concluded that all electrical cables should be replaced with IEEE-383 qualified cables and the dike to restrict as $A_f{\leq}2m^2$ should be installed at the same time, in order to assure the thermal stability of electrical cables for lubricating oil fires in the air compressor room of domestic NPP.

Performance-based Fire Protection Design of Domestic Super High-rise Buildings - Evaluation by ASET and RSET -

  • Roh, Hyeong-Ki
    • Journal of the Korean Society of Hazard Mitigation
    • /
    • v.11 no.2
    • /
    • pp.9-13
    • /
    • 2011
  • The Performance-based fire protection design required to construct super high-rise building is the active measure for the evaluation of fire risks and the establishment of fire protection systems on the basis of engineering analysis, which is more efficient and proper than existing prescriptive-based design. This study applied time-line analysis of RSET is required safe egress time and ASET is available safe egress time with the fire and evacuation simulation to analyze. The result of this study showed the sprinkler system increased ASET and fire detection and alarm system reduced RSET efficiently. Reduced evacuation time influences to secure the life safety. Also it is essential to maintain the fire suppression system and fire detection & alarm system properly. Database of fire movement and evacuation action program are useful for the performance-based design.