• Title/Summary/Keyword: fire accident

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Fire simulation by HRRPUA method for composite material body structure train coach (표면열복사율을 이용한 복합차체 철도차량 화재시뮬레이션)

  • Kim, Woo-Tae;Lee, Duck-Hee;Jung, Woo-Sung;Lee, Chang-Hyun;Woo, Mun-Chun
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.596-601
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    • 2008
  • Larger amount of composite materials are used for light train. These days even the body structure of the coach was made by composite materials. In this study, we made the fire simulation with FDS by HRRPUA method for the passenger coach of carbon-epoxy composite material body structure. For the body structure fire resistance verification, 1.8 liters of gasoline were selected for fire source. For the interior fire case, 4.0 liters of gasoline fire source was selected as Daegu fire accident case.

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The status of parents' education and their perception for young children's safety (유아안전을 위한 부모교육의 경험 및 부모의 인식도)

  • Hong, Myoung-Hee;Chong, Young-Sook;Jang, Hye-Ja
    • Korean Journal of Human Ecology
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    • v.13 no.5
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    • pp.741-749
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    • 2004
  • The purpose of this study was parents' perception on young children's safety life, safety accident, and safety education and provided basic data of administrating parent education for young children's safety. Subjects of this study were 620 parents (310 fathers and 310 mothers) of young children attending at four public kindergartens and two day care centers located in C city and D county. The results of the study were as follows: First, regarding parents' perception on young children's safety life, parents thought that their perception and attitude would mostly affect young children' safety life. Second, with regard to parents' perception on safety accident, half of parents experienced such safety accident as accident during play, traffic accident, accident in dangerous places, accident from dangerous matters, accident in sport activities, fire, and electric shock. Third, most parents looked upon safety education as very important one, and fathers were more satisfied with the safety education administered by kindergartens. Fourth, with regard to parents' perception on parent education for young children's safety, most parents thought that parent education for safety would be necessary. They ranked traffic and play accidents as the most important contents of safety education.

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The Study Fire Mechanism and Real Fire Correlation of Power Condenser (전력용 콘덴서의 화재메커니즘과 실제 화재상관관계 연구)

  • Baek, Donghyun
    • Fire Science and Engineering
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    • v.31 no.6
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    • pp.112-117
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    • 2017
  • This research discusses the correlation about fire mechanism based on real fire cases. Electric power condenser failure mechanism is classified into 7 steps and fire mechanism is classified into 12 steps. In the 5th step, the procedure of operating a protection channel of a protection relay was identical in the case of the failure and fire. As the fire occurrence mechanism was applied from the 6th step, internal pressure was increased because of gas generation produced by internal combustion phenomenon and arc. This caused explosion in 10st step of fire occurrence mechanism. In 11th step, the flame such as arc gushed out with insulating oil which caused fire and leaded to second accident. This kind of step correlation could play an important part to examine fire.

A Study on Improvement of Professional Fire Investigation Education and Certification System (화재조사전문교육 및 자격증제도 개선에 관한 연구)

  • Ko, Gi-Bong;Lee, Si-Young
    • Fire Science and Engineering
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    • v.23 no.5
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    • pp.32-42
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    • 2009
  • This study aims to analyze operation status of the professional fire investigation education in Korea and derive improvement measures. Study results showed that professional fire investigation educations are conducted mainly by public sectors (Fire Service, Police, Korea Electrical Safety Corp, Korea Gas Safety Corp, etc.) and the educations conducted by National Fire Service Academy are most systematic. In addition, there was no professional fire investigation educations conducted for private sector (fire accident suffers, common peoples, etc.) In order to improve the problems, this study suggests changing the National Fire Service Academy to lifelong education system in coordinance with the scholar's courses of universities, classifying the fire inspector qualification course (executed by National Emergency Management Agency) in five stages, and opening the fire inspector qualification test to the public.

A Study on Factory Building Fire Risk Reduction Management (공장건물의 화재리스크 경감방안에 관한 연구)

  • Chung, Eui-Soo;Kang, Kyung-Sik
    • Journal of the Korea Safety Management & Science
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    • v.10 no.3
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    • pp.43-53
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    • 2008
  • This study is carried out for the fire safety of the factory building, the fire risk reduction measure in compliance with an example approached in fire risk reduction systematically, contribute to reduce the fire risk. The analytical fire risk process of discovering, identifying, estimating and evaluating risk and control measure as risk reduction measures are core concept, applies loss prevention with loss control techniques. The painting process in the workplace where the fire hazard and death accident accompanies coexists. Loss prevention problem of creation prevention of dangerous atmosphere at workplace is health and human services problem of normal circumstances, must be inspected with problem of combustible gases at the time of fire explosion. Static electricity measure accomplished the risk control process thoroughly as the fire risk reduction process model with the ignition sources measure which is presented. Fire risk from within organizing will be able to classify with each field by detailedly but risk treatment process will be able to apply basically all the same concept. Consequently about risk management example from before, this study is proposed risk management techniques that standardized rightly in the actual condition of organization with one plan, with discovery of fire risk, the feedback process in compliance with a fire risk reduction and the review which control the result is joint responsibility of engineer, technical expert and manager as part of safety management to practice with the fact must be supervised.

Heat Release Characteristics of Typical Live Fire Load in Large Bookstore (대형서점 적재가연물의 초기 연소발열성상)

  • Nam, Dong-Gun
    • Fire Science and Engineering
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    • v.25 no.2
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    • pp.88-94
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    • 2011
  • Heat release characteristics of live fire load are an important parameter for performance oriented fire safety design of a building. While investigations have been carried out on the fire load and its burning behavior in office, residential and commercial buildings and so on, little effort has been paid for the rational treatment of fire load in bookstore. In this report, burning behavior of typical combustible objects in bookstore are studied by measuring heat release rates of bookshelf with book. Based on the results, it has reviewed fire safety when a fire accident occurs on the large bookstore and suggested peak heat release rate per burning surface, fire growth rate, etc of the live fire load required for fire safety design in bookstore.

A Study on Prevention Measure Establishment through Cause Analysis of Chemical-Accidents (화학사고 원인분석을 통한 예방대책 수립에 관한 연구)

  • Lee, Hyung-Sub;Yim, Ji-Pyo
    • Journal of the Korean Society of Safety
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    • v.32 no.3
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    • pp.21-27
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    • 2017
  • Even if several chemical accident prevention systems such as PSM(Process Safety Management), RMP(Risk Management Plan), etc. have been carried out, many chemical accidents have still occurred at industrial plants in Korea. We describe the status of chemical industry and the trend of occurrence of chemical accidents in Korea. And this paper analyzes the recent chemical accidents in eight ways. These ways include chemical accident forms, ignition sources, sources of chemical equipment, human vs equipment/material causes, worker's working situation, employee scale, hazardous substances, week & time, fatalities of manufacture & contractor's workers. Finally we proposes the four representative prevention measures brought to result of cause analysis by accident statistics.

A Study on the Recognition of Daegu Citizen on Fire Safety (대구시민의 소방안전의식에 관한 연구)

  • 방창훈;최영상
    • Fire Science and Engineering
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    • v.18 no.3
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    • pp.25-29
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    • 2004
  • The purpose of this study is to supply basis data that can improve the recognition of Daegu citizens on fire safety through the investigation of their recognition on fire safety. To achieve the purpose, 553 Daegu citizens in Daegu city were interviewed from Oct. 2 to 15, 2003. The results of this study are as follows; Citizens had thought little the recognition of our society on fire safety and Daegu subway fire accident caused very big effect in citizens' fire safety recognition. Citizens did not trust about fire fighting facilities that is established in the building. Method to elevate recognition for citizens' fire safety recognition appeared by TV, newspaper, etc public information reinforcement (30.7%), establishment and operation of the fire safety experience center (24.6%), fire safety education reinforcement in school (20.8%).

An Experimental Study on the Warehouse Mock-up Fire Test (창고 모델 실물화재 특성에 대한 실험적 연구)

  • Kweon, Oh-Sang;Yoo, Yong-Ho;Kim, Heung-Youl
    • Fire Science and Engineering
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    • v.24 no.4
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    • pp.47-54
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    • 2010
  • This study is analyze the damage of warehouse fire accident be made through the fire characteristic database of combustibles and real scale fire test of warehouse mock-up. Combustibles fire tests are carried out for database using RCT (Room Corner Tester) to predict fire growth the goods. A mockup ($3m{\times}3m{\times}2.4m$) of clothes warehouse was built and real scale fire test by LSC (Large Scale Calorimeter) base on the fire characteristic DB. The mock-up of clothes warehouse is made of two type sandwich panels (Glass wool, EPS foam sandwich panel). As a mock-up test result, test 1 (Glass wool sandwich panel) and test 2 (EPS foam sandwich panel) indicating fire growth such as 5 MW, 11 MW of maximum HRR (Heat Release Rate).

An Improvement Plan on Fire Safety Management of Public Institutions: Focusing on the Case of Elementary and Secondary Schools (공공기관 소방안전관리 실태조사를 통한 개선방안에 관한 연구 : 초·중등학교를 중심으로)

  • Han, Sang-Pil
    • Fire Science and Engineering
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    • v.34 no.3
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    • pp.85-90
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    • 2020
  • The aim of this study is to identify ways to improve fire safety management of elementary and junior high schools, which can prevent potentially dangerous situations and establish a rapid response system for fire-related emergencies by analyzing existing fire safety management public institutions. We investigated the expertise, prevention ability, preparation ability, and operation form of fire safety managers working in elementary and secondary schools in Kangwon Province. A questionnaire composed of 26 items was completed by 238 fire safety managers. Results shows that the perception of fire safety management is considerably high, while the ability of the fire safety manager to prepare for and cope with an accident still needs improvement.