• Title/Summary/Keyword: 화재 사고

Search Result 1,170, Processing Time 0.026 seconds

Consequence Analysis for Fire and Explosion Accidents in Propylene Recovery Process (프로필렌 회수공정에서 화재 및 폭발 사고의 피해영향 해석)

  • Han, Seong-Hwan;Lee, Hern-Chang;Park, Kyoshik;Kim, Tae-Ok
    • Journal of the Korean Institute of Gas
    • /
    • v.18 no.1
    • /
    • pp.52-60
    • /
    • 2014
  • This study aims to suggest risk management plan including safety measures through hazard identification followed by consequence analysis in petrochemical plants. Consequence analysis was performed through practical release scenario by using PHAST RISK(ver. 6.7) software in the propylene recovery process(PRP). As results, consequences by fire or explosion accidents in the depropanizer zone, deethanizer zone and heat pump zone were relatively larger than other else zones among six process zones in the PRP. In the case of jet fire, it is recommendable not to install residence building within 200 m of the process zone. Additionally, process zones having large inventory or high pressure must be prevented from accidents and required to establish quick response against accidents.

A study on quantitative risk assessment for railway Tunnel fire (철도터널에서 차량화재시 정량적 위험도 평가에 관한 연구)

  • Yoo, Ji-Oh;Nam, Chang-Ho;Jo, Hyeong-Je;Kim, Jong-Won
    • Journal of Korean Tunnelling and Underground Space Association
    • /
    • v.12 no.4
    • /
    • pp.307-319
    • /
    • 2010
  • As we learned in Daegu subway fire accident, fire in the railway tunnel is prone to develop to large disaster due to the limitation of smoke control and smoke exhaust. In railway tunnel, in order to ensure fire safety, fire prevention and fighting systems are installed by quantitative risk assessment results. Therefore, in this research, developed the program to establish quantitative risk assessment and suggested quantitative safety assessment method including fire scenarios in railway tunnel, fire and evacuation analysis model, fatality estimate model and societal risk criteria. Moreover, this method applys to plan preventing disaster for Honam high speed railway tunnel. As results, we presented the proper distance of escape route and societal risk criteria.

The Real-Scale Reproduction Experiments of Sungnyemun Fire Accident (숭례문 화재사고 실물 재현 실험)

  • Yoo, Yong-Ho;Kwon, Oh-Sang;Kim, Heung-Youl
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
    • /
    • 2008.04a
    • /
    • pp.265-268
    • /
    • 2008
  • 본 연구에서는 숭례문 화재를 재현하기 위한 실물 모형을 제작하여 화재의 전이과정 및 붕괴에 이르는 과정을 추론하여 보고자 하였다. 실험결과 시너의 폭발력에 의한 화염이 천정의 적심부분에 직접적인 화재 원인임을 예측 할 수 있었으며, 이에 따른 적심부의 계속적인 훈소과정을 거쳐 숭례문의 천정내부에 화재가 성장하였을 것으로 판단되었다.

  • PDF

Development of the Fire Prevention Method related to Gas in the Area of Dense Energy Consumption (에너지 사용 밀집지역에서의 가스 관련 화재예방 기법 개발)

  • Kim, Jung-Hoon;Kim, Young-Gu;Jo, Young-Do
    • Journal of the Korean Institute of Gas
    • /
    • v.22 no.2
    • /
    • pp.29-33
    • /
    • 2018
  • Accident likelihood is growing due to a correlation for gas and electricity installed in the area of dense energy consumption like traditional market and underground shopping center. In order to prevent and respond accident risks related to gas and electricity in this area, it should be monitored and predicted for factors of gas leak or electricity by developing safety management system. This study is about accident prediction model development considering fire risk factor related to gas accident. The temperature variation characteristic near a gas burner was analyzed. Also, accident prediction algorithm and related module were developed to prevent fire in the area of dense energy consumption.

A Case Analysis of Intentional Car Explosion (고의에 의한 승용차폭발 사례의 분석)

  • Lee, Eui-Pyeong
    • Fire Science and Engineering
    • /
    • v.31 no.4
    • /
    • pp.119-127
    • /
    • 2017
  • This study analyzed the cause of car explosion that occurred in the riverside park. The car carrying a male driver and a female passenger was parked in the park and explosion occurred inside the car. After the explosion, the driver and the passenger got burned. When they went to the hospital by the 119 Rescue Service, they stated that the car was sprayed with thinner before they had a quarrel and the explosion occurred during their quarrel. However, after several days, they changed their statement. They said that gasoline in the plastic bottle was poured and ran into the cigarette lighter. They tried to pull the cigarette lighter but pushed it by mistake. Then explosion occurred. Because only the explosion by mistake could receive car insurance, whether the cause of explosion was intentional or not became an issue. The car exploded was carefully investigated and analyzed. The statement of the driver and passenger was analyzed in the aspect of fire science. As a result, it was demonstrated that this car explosion occurred by driver's intention.

CFD-based Fire Accident Impact Analysis in Clean Room for semiconductor PR Process (반도체 PR 공정의 클린룸내 CFD 기반 화재 사고 영향 분석)

  • Chun, Kwang-Su;Yi, Jinseok;Park, Myeongnam
    • Journal of the Korean Institute of Gas
    • /
    • v.25 no.6
    • /
    • pp.35-44
    • /
    • 2021
  • The PR (Photo Resist) process in the semiconductor process is a process that uses a mixture of flammable substances. Due to the process equipment is installed in a clean room and when flammable substances leak, there is a high risk of suffocation, fire, and explosion. It is necessary to analyze the impact of accidents that may occur during operation and to evaluate whether the safety of workers can be guaranteed. In this study, the value of radiant heat and temperature change at the monitor point set up virtual inside the clean room was confirmed through CFD simulation of 10 leak and fire scenarios using the FLACS CFD - Fire Module. A fire that occurs inside a clean room transfers high radiant heat to the inter-story structure, but its scope is quite limited, and it is unlikely that it will collapse in a single fire accident. There was no scenario in which two stairs leading to the exit were exposed to high radiant heat at the same time due to a fire accident, therefore workers were able to escape in case of a fire. In addition, it was confirmed that the level of radiant heat and temperature rise rapidly decreased as they moved downstairs. According to the API 520 standard, workers exposed to 6.31 kW/m2 of radiant heat that workers can withstand for 30 seconds were confirmed that it was possible to sufficiently escape from the inside.