• Title/Summary/Keyword: Korea Fire Institute

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A Study on the Fire Risk of ESS through Fire Status and Field Investigation (화재현황 및 현장조사를 통한 ESS의 화재 위험성 연구)

  • Park, Kwang-Muk;Kim, Jae-Hyun;Park, Jin-Yeong;Bang, Sun-Bae
    • Fire Science and Engineering
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    • v.32 no.6
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    • pp.91-99
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    • 2018
  • Recently, the spread of ESS in Korea has increased and a fire accident has also occurred. By July 2018, there were a total of 7 cases. All 7 cases were ESS systems consisting of lithium-ion batteries and were burned down. Both the automatic fire extinguisher and the fire department were not able to digest. In this paper, the characteristics of ESS fire are analyzed based on recent ESS fire situation and field investigation, and the cause of fire is divided into environmental, electrical and thermal factors. As a result, it was found that the ESS fire was correlated with the installation environment of the system. In the domestic and overseas lithium ion battery test standard and ESS facility standard survey, the trends and differences of domestic and overseas facilities standards were identified. Based on the fire status and field investigationy, and domestic and overseas facility standard survey, measures were suggested to prevent and prevent the spread of fire in ESS fire.

An Examining and Analyzing Study on the Fire Resistance Design for Immersed Tunnels (침매터널 내화설계에 관한 조사 분석적 연구)

  • Lee, Young-Jae;Kim, Heung-Youl;Shin, Hyun-Jun;Kim, Hyung-Jun
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.11a
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    • pp.507-512
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    • 2008
  • Recently, Busan-Geoje fixed Link Immersed Tunnel and the Tokyo Port Waterway 2 Submarine Tunnel have been constructing. Furthermore it was mentioned to construct an immersed tunnel from Korea to Japan. As a result, it is expected that the demand to use the immersed tunnel will be increased. However, if a fire occurs in the immersed tunnels, it will damage tunnel elements and not save human lives more seriously than normal tunnels on the ground because of the absence of exits as well as closing structure of the immersed tunnels. In fact, the fire accident in the Eurotunnel which connects between France and the Unite Kingdom through the immersed tunnel had occurred twice in 1996 and 2008, and the inner surface of the tunnel got damaged such as concrete popout and structural damage. As a result, not only economic injury but enormous expense to repair and reinforce the tunnel were derived because of the suspension of traffic after the fire happened. Now, from the examining and analyzing study on the fire resistance of immersed tunnels in developed countries and Busan-Geoje fixed Link Immersed Tunnel, we suggest the establishment method of fire resistance to insure the fire safety of immersed tunnel.

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Fire Simulations for the Abandonment Risk Assessment of Main Control Room Fire in Domestic Nuclear Power Plant (국내 원자력발전소의 주제어실 화재 피난 리스크 평가를 위한 화재 시뮬레이션)

  • Kang, Dae Il;Kim, Kilyoo;Jang, Seung-Cheol;Yoo, Seong Yeon
    • Journal of the Korean Society of Safety
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    • v.29 no.4
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    • pp.199-207
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    • 2014
  • In this paper, to systematically assess the abandonment risk of main control room (MCR) fire, fire simulations with Fire Dynamics Simulator were performed and abandonment probabilities were estimated for the MCR bench-board fire of domestic reference nuclear power plant. The fire simulation scenarios performed in this study included propagating and non-propagating fires of the MCR bench-board, and the availability and unavailability of heating, ventilation, and air conditioning system (HVACS). The following results were obtained. First, temperature was the major abandonment impact factor for the MCR bench-board fire if the HVACS was available and optical density was that if the HVACS was unavailable. Second, the fire scenario contributing the MCR bench-board fire abandonment risk was identified to be only the propagating fire. Third, it was confirmed that the abandonment probability of the MCR bench-board fire for domestic reference nuclear power plant could be reduced by using the fire modeling.