• Title/Summary/Keyword: Fire Hazard

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Risk Screening of a BTX Plant Using FEDI Method (화재폭발손실지수법을 이용한 BTX 공장의 위험선별)

  • Kim Yong-Ha;Kim In-Tae;Kim In-Won;Kim Ku-Hwoi;Yoon En-Sup
    • Fire Science and Engineering
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    • v.19 no.1 s.57
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    • pp.20-28
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    • 2005
  • Major petrochemical companies in the USA and the EU map out the strategies step-by-step hazard evaluation for the efficient risk management. They adopted the risk screening methods, such as Dow fire & explosion index, as a preliminary phase to execute detailed evaluation such as QRA (Quantitative Risk Assessment). In this study, The FEDI (Fire & Explosion Damage Index), which a kind of risk screening method proposed by Khan and Abbasi, was applied to the BTX plant in Korea. We showed that the FEDI can be effectively used to classify the hazard potential by comparison of the result from the FEDI and the result from QRA. And we showed that the characteristics and the quantities of chemical are the factors which have a largest effect on fire and explosion by executing relative sensitivity analysis of the FEDI. In conclusion, if the FEDI was applied as a preliminary phase of HAZOP, more efficient hazard evaluation can be possible.

A Study on the Fire Hazard of Transportation Oil (수송기관용 오일의 화재위험성에 관한 연구)

  • Park, Young Ju;Hwang, Me Jung;Lee, Hae Pyeong;Lee, Seung Chul;Lee, Chang Hyun
    • Journal of the Korean Society of Safety
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    • v.29 no.3
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    • pp.114-120
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    • 2014
  • The purpose of this study is to conduct the study of the combustion and thermal characteristics through transportation oil for the analysis of fire hazard. Transportation oil breaks down into fuels such as diesel for civilian demands, gasoline, DF1(diesel for military), high sulfur diesel(for marine), kerosene and JP1(for aviation), and lubricants like brake fluid, power steering oil, engine oil, and automatic and manual transmission oil. The experiments of flash point, ignition point, flame duration time, heat release rate were carried out using TAG closed cup flash point tester(AFP761), Cleveland open cup auto flash point analyzer(AFP762), KRS-RG-9000 and Dual cone calorimeter. As a result, the fuel's ignition points were lower than lubricants, especially that of gasoline was not conducted as it has below zero one. Gasoline has the highest ignition point of about $600^{\circ}C$, while the other fuels showed $400{\sim}465^{\circ}C$. For flame duration time, lubricants had over 300 seconds, but fuels had less than 300 seconds except high sulfur diesel(350 seconds). Total heat release rate ranged $287{\sim}462kW/m^2$ for lubricants and gasoline showed the highest total heat release rate, $652kW/m^2$.

Development of Impact and Fire Hazard Analysis on the Steel Roof of LNG Storage Tank (LNG 저장탱크 강재지붕의 충격 및 화재에 대한 안전성평가기법 개발)

  • Lee, Seung-Rim;Park, Jang-Sik;Lee, Young-Soon
    • Journal of the Korean Institute of Gas
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    • v.13 no.1
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    • pp.34-39
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    • 2009
  • Traditionally all concrete roof type LNG storage tank have been constructing in Korea regardless of LNG tank types. But a steel roof LNG storage tank has merits relatively in designing larger scale tanks and construction cost so it is on the table to apply. This study was carried for the standardized development of impact and fire hazard analysis on a 200,000$k{\ell}$ steel roof LNG storage tank designed by KOGAS and for getting quantitative safety data on a steel roof LNG storage tank compared with a conventional concrete roof LNG storage tank by evaluating with this method. Hazard analysis on each four impact and fire scenarios were developed and evaluated by using finite element methods.

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An Improvement of Fire Safety Code for Rack-Type Warehouse in Korea (국내 랙크식 창고의 방화관련 규정 개선에 관한 연구)

  • Kim, Woon-Hyung;Lee, Young-Jae
    • Fire Science and Engineering
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    • v.28 no.6
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    • pp.69-75
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    • 2014
  • Recently Amore pacific rack-type warehouse fire broke out and argue an urgent improvement of fire protection design code including automatic sprinkler and detection design. Various type of commodities have their unique fire characteristics from fire spread rate and heat lease rate and fire hazard depends on storage height, rack arrangement, aisle width, fire load etc. With increasing ceiling height for more storage space prevent effective water spray of sprinkler head, also delays detection time causes failure of early suppression. To achieve fire protection code performance of this occupancy, Major code articles relating to a classification of commodity, sprinkler system installation, detection and fire fighting are reviewed and suggested based on fire case analysis, code review between country and field survey.

The Experimental Study on the Toxic Gases Released from the Floor Finishing Materials in Entertainment Service Industry Buildings (다중이용시설 바닥마감재의 연소가스 독성평가에 관한 실험 연구)

  • 강성동;이창우;현성호;윤명오
    • Fire Science and Engineering
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    • v.16 no.2
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    • pp.14-21
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    • 2002
  • The several floor finishing materials that widely used in entertainment service industry buildings were evaluated according to the method of NES 713. Also, toxic gases of floor finishing materials in combustion without air flow rate were checked as concentration of fire gases variation according to time using gas analyzer. We had estimated the smoke hazard of floor finishing materials in fire. As results of gas analyses using the method of NES 713, toxic index of samples was estimated range of 2~9.7. Therefore, a large amount of toxic gases will release from a floor finishing materials fire and connoted great smoke hazard in fire.

Experimental Investigation about Optimum Smoke Extraction System for Underground Station (축소 모형 실험을 통한 정거장내 적정 배연방식에 관한 연구)

  • Lee, Ho-Keun;Kim, Myoung-Woo;Lee, Phill-Young;Kim, Nam-Suk
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.4
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    • pp.53-59
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    • 2008
  • If fire is occurred in the subway, the train must be moved to the closest station and make passengers get off the train. As a matter of fact, the Fire of Dae-gu Subway was coped with this way. But, the fire smoke extraction system of real subway stations have not designed to deal with fire of trains yet. Therefore, we have to establish a plan of station railroad for preventing from unexpected damage when the fired train comes to the station. The purpose of this study is to establish the effective smoke extraction measure that is to prevent stations from damage by the scale-down experiment.

A Study on Meteorological Elements Effecting on Large-scale Forest Fire during Spring Time in Gangwon Young-dong Region (강원 영동지역 봄철 산불대형화 영향 기상요소 분석)

  • Lee, Si-Young;Kim, Ji-Eun
    • Journal of the Korean Society of Hazard Mitigation
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    • v.11 no.1
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    • pp.37-43
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    • 2011
  • In this study, we analyzed the meteorological elements, when large forest fires were occurred, The rate of precipitation was 13% of annual average precipitation. Especially, the stronger wind speed, lower humidity and rainfall than average annual record were the distinct feathers on the year when large forest fire occurred in east coast area in Kangwon region. The average, maximum and maximum instantaneous wind speed was 5.9 m/s, 11.3 m/s and 20.9 m/s when large forest fires occurred. The average, maximum and maximum instantaneous wind speed on large fire occurred were 1.8 m/s, 3.0 m/s and 6.9 m/s faster than and average wind speed when whole forest fires occurred. The results indicated that the large forest fire occurrence had a close correlation with meteorological elements.

A Study on the Characteristics & Fire Hazard of Electric Range (전기레인지의 특성과 화재 위험성에 관한 연구)

  • Lee, Jung-Il;Ha, Kag-Cheon;Kim, Ji-Myong
    • Journal of the Society of Disaster Information
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    • v.15 no.3
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    • pp.380-390
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    • 2019
  • Purpose: Recently, in addition to increase in the use of electric ranges, fires have also been increasing. Method: To find out the fire risk of induction and highlights range, looked at the structure and operation methods. Combustion tests, heat transfer tests, and ignition tests were performed on both types. Results: The highlight electric range burned the towel two minutes later, takes about 25 minutes for the residual heat to cool down after cooking, and the energy of the red color disappeared in three to four minutes and no sparks were seen. Conclusion: Experiments have shown that burn and fire hazards exist, especially if there is cracks in the top, there is a risk of fire and explosion.