• Title/Summary/Keyword: Fire analysis

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Research on Disaster and Fire Response Capability and Hazard Analysis Using Basic Mapping Method (Mapping을 이용한 소방방재력 및 재해취약성의 연구)

  • Wang, Soon-Joo;Baek, Min-Ho
    • Journal of the Society of Disaster Information
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    • v.3 no.1
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    • pp.69-86
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    • 2007
  • The fire department has one of the most important role as public resources of response to disasters in the aspect of supply and the adequate distribution of resources of response is essential, but the distribution of the response capability to disaster of fire department does not reflect the regional hazard vulnerability and hazard risks. Researchers performed database process with simple mapping based on the regional fire disaster response capability and the regional hazard vulnerability and hazard risks. The cities and towns are divided to four types each, total eight types and relative threat ratios are extracted from every type. The fire disaster response capability was extracted from number of firemen and fire vehicles in defined region. The distribution of the fire disaster response capability was inadequate and not matching to relative threat especially in small cities and some types of towns. The regional relative threat and resources should be analyzed by more delicate mapping and software development in the future.

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A Study on Heat Transfer Characteristics of H-120 Class Fire Damper for Offshore Structures (해양플랜트용 H-120급 방화 댐퍼의 열전달 특성에 관한 연구)

  • Jang, Sung-Cheol;Lee, Jong-Hwan;Lee, Chi-Woo
    • Journal of Power System Engineering
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    • v.18 no.2
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    • pp.19-24
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    • 2014
  • This research conducts CAE analysis of fire damper and design of damper controlling system. The prediction of the design heat transfer was done the answer of fire damper could be obtained by using continuity equation of damper controlling and orthogonal array. Through the design analysis of optimal offshore construction, new fire damper of H-120 class was designed. Accordingly, this equipment will be tested in actual offshore construction. Finally, we could obtain fire damper of optimal design with orthogonal array. With the CAE results of this research, The offshore plant will obtain eco-friendly fire damper with a method to select optimal condition of fire damper with orthogonal array.

A Study on Fire Risk Analysis & Indexing of Buildings (건축물의 화재위험의 분석과 지수화에 관한 연구)

  • Chung, Eui-Soo;Yang, Kwang-Mo;Ha, Jeong-Ho;Kang, Kyung-Sik
    • Journal of the Korea Safety Management & Science
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    • v.10 no.4
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    • pp.93-104
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    • 2008
  • A successful fire risk assessment is depends on identification of risk, the analytical process of potential risk, on estimation of likelihood and the width and depth of consequence. Take the influence on enterprise into consideration, Fire risk assessment could carry out along the evaluation of the risk importance, the risk level and the risk acceptance. A large part of the limitation of choosing the risk assessment techniques impose restrictions on expense and time. If it is unnecessary high level risk assessment or Probabilistic Risk Assessment of buildings, in compliance with the Relative Ranking Method, Fire risk indexing and assessing is possible. As working-level technique, AHP method is useful with practical technique.

Analysis of Fire Risk through Battery Fire Cases and Experiments of Wearable Devices (웨어러블 기기의 배터리화재사례와 실험을 통한 화재위험성 분석)

  • Lee, Jung-Il
    • Journal of the Korea Safety Management & Science
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    • v.22 no.2
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    • pp.47-55
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    • 2020
  • This study analyzed ignition probability about Lithium-polymer batteries of what variously were being produced wearable devices recently. The study analyzed ignition probability by PCM(Protection Circuit Module) operating state and overcharged, over-discharged, exposed to high temperatures of Lithium polymer batteries, analyzing wearable devices on the market. Then it classified experimental results to implement analysis comparison about weight, X-ray imaging, battery decomposition. With these experiments, the study analyzed combustion-possibility and fire patterns. These statistics will be used to measure and verify the cause of a fire when identify wearable devices using Lithium-polymer batteries.

A Study on the Analysis of Evacuation Risk by Building Application for Fire Safety (화재안전을 위한 건축물 용도별 피난리스크 분석에 관한 연구)

  • Jin, Seung-hyeon;Koo, In-Hyuk;Seo, Dong-Goo;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.05a
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    • pp.164-165
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    • 2021
  • In Korea, in the case of fire scenarios in performance design, it is assumed that the sprinkler is not working. In addition, it does not applicate various fire conditions. Therefore it is not enough that the accuracy about fire scenario. In foreign countries, reseach is being conducted to predict the casualities that can occur due to fire in the building space through statistical risk analysis. Also, research is consistently conducting for design that consider the sprinker probability of operation. Therefore, to analyze the fire risk of each building in Korea, the risk was analyzed using statistical data. As a result, the risk of casualties that can occur for each building use was analyzed as 0.6(persons/cases) for residential buildings, 0.25(persons/cases) for sales facilities, and 0.12(persons/cases) for buisiness facilities.

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The First Performance-based Structural Fire Design for Office Building in Korea

  • Min Jae Park
    • International Journal of High-Rise Buildings
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    • v.12 no.3
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    • pp.235-239
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    • 2023
  • In this study, the fire resistance performance of the concrete-filled steel tube (CFT) columns and thin steel-plate composite (TSC) beams installed at a 20-story office building were designed using a performance-based structural fire design. Because of the lack of any specific provisions in the building code and guidelines for structural engineers about the performance-based approach, the only prescriptive approach has been selected for designing fire-resistant structures in Korea. To evaluate the fire resistance performance of the CFT columns and TSC beams, finite element analysis verified by the experimental results studied by several researchers was conducted with ABAQUS. From the fire scenario, the temperature distributions of the CFT columns and TSC beams were found via finite element analysis and the behaviors of the CFT columns and TSC beams were investigated in the structural field based on the temperature distribution.

Analysis of Fire-Related State Compensation Cases (화재와 관련된 국가배상 사례의 분석)

  • Lee, Eui-Pyeong
    • Fire Science and Engineering
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    • v.33 no.5
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    • pp.109-117
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    • 2019
  • When those who have caused a fire have no ability to compensate fire victims, the victims tend to charge fire agencies for state compensation to receive damage relief. This study analyzed two state compensation cases related to fires. The findings suggest that if there is a causal relationship between fire damage and mistakes committed by fire officials that are associated with fire prevention or special fire inspections, courts usually decide that fire agencies should compensate fire victims. Despite the introduction of a new article in the Framework Act on Fire-Fighting Services on December 26, 2017, titled "Exemption from Responsibility for Fire-Fighting Activities", exemptions are only available if inevitability of the activity has been proven. However, unlike rescue or first aid activity, inevitability is difficult to prove when it comes to fire inspection activity. Therefore, it is expected that state compensation suits related to fires will not decrease.

A Numerical Study to Analyze Safety of Pressure Leakage Monitoring System of Gas Extinguishing Agent (가스소화약제 압력누기감시장치의 안전성 분석을 위한 수치적 연구)

  • Go, A-Ra;Lim, Dong-Oh;Son, Bong-Sei
    • Fire Science and Engineering
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    • v.30 no.4
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    • pp.103-110
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    • 2016
  • While the demand for the gas system fire extinguishers increases every year, there are insufficient safety measures for assessing the extinguishing performance, such as system safety and reliability in the preparation of increasing demand, which has emerged as a social problem. One of the most critical causes of accidents occurring with the gas extinguishing system is pressure leakage from the extinguishing agent storage container. This is considered to be one of the critical factors on which the success of fire suppression depends. In this study, its safety measure was studied, Because it was deemed urgently necessary. The newly developed pressure leakage monitoring system is a system monitoring storage condition, pressure, leakage and discharge of the storage container related to agent concentration, which is one of the critical factors for fire suppression. This was developed to be applicable to the $CO_2$ and HFC-23 systems. Therefore, for structural safety analysis, the safety performance was verified by the fluid structure coupling analysis of the safety problems that may occur when the pressure leakage monitoring system is applied to the gas fire extinguisher. For analysis programs, the FloEFD program from Mentor Graphics was used for computational fluid dynamics analysis and ABAQUS from Dassault Systems was used for structural analysis. From the result of numerical analysis, the structure of $CO_2$ did not develop plastic deformation and its safety was verified. However, plastic deformation and deviation issue occurred with the HFC-23 monitoring system and therefore verified the structural safety of pressure leakage monitoring system by data obtained from redesigning and adjusting the condition of numerical interpretation three times.

The Effects of Parameters Affecting the Results in the Jet Fire for the Vapor Release Accident (증기누출사고의 영향평가에서 제트화재에 미치는 매개변수의 영향)

  • 조지훈;하정호;함병호;윤대건;김태옥
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1996.11a
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    • pp.53-56
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    • 1996
  • In order to propose the method of the consequence analysis for fire accidents by the heavy gas release and to obtain optimum conditions of parameter selections, the consequence analysis for jet fire by the accident of xylene vapor release were performed. And the effect and the sensitivity analysis of parameters affecting the consequence were investigated. Simulation results showed that important parameters affecting results of the xylene vapor release accident were mainly hole diameter, interested distance, wind speed, and so on. For the jet fire, the accident result and the sensitivity of thermal radiation were increased with the decrease of interested distance and the increase of hole diameters, and the accidental result was increased as the increase wind speed, but the sensitivity of thermal radiation was decreased.

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A Study on Enhancing Institutionalization on the Fire Analysis of the Warehouse at Icheon City (이천 냉동창고 화재분석을 통한 제도개선방안 연구)

  • Jung, Tae-Ho;Park, Sang-Hyun;Kim, Hee-Kyu
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.04a
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    • pp.80-84
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    • 2008
  • This research has been carried out in order to provide countermeasure plans, fire prevention, improving institutional plans through analyzing accidental causes and investigating the situation of damage from the fire incident of the cold storage at Icheon. By the analysis of the incident, which is organized the process; for incidence, firstly a field investigation, next the overview of related laws, finally the analysis of problems and deducting suggestions, it was possible to find out the causes of casualties. We also suggested improving plans through finding out several problems such as safety management system and safety regulations, the permit on the completion of the cold storage and the completion examination of fire facilities as institutional problems and fireproof construction and the selection of finishing materials.

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