• Title/Summary/Keyword: 화재위험성 평가

Search Result 438, Processing Time 0.033 seconds

Heat Risk Assessment of Wood Coated with Boron/Silicone Sol (붕소/실리콘 졸로 도포된 목재의 열위험성 평가)

  • Jin, Eui;Chung, Yeong-Jin
    • Fire Science and Engineering
    • /
    • v.33 no.3
    • /
    • pp.9-20
    • /
    • 2019
  • This study was examined fire risk properties of wood specimen for the constructional interiors, especially focusing on the fire performance index (FPI) and the fire growth index (FGI) as heat hazard characteristics. Flame retardants were synthesized using boric acid, boronic acid and tetraethoxyorthosilicate. Heat release characteristics were measured by using a cone calorimeter (ISO 5660-1) and cypress was used. The external heat flux as fire intensity was maintained at 50 kW/㎡. The measured fire performance index (FPI) after burning was increased by 1.6 times for boric acid/silicone (BA/Si) sol, each 1.1 times for isobutylboronic acid/silicone (IBBA/Si) sol and phenylboronic acid/silicone (PBA/Si) sol compared with cypress. Fire risk by the fire performance index was increased BA/Si, IBBA/Si ≈ PBA/Si order. The fire growth index was decreased 94% for the BA/Si and 8% for the IBBA/Si sol, and was increased by 17% for the PBA/Si sol. Fire risk by the fire growth index was increased BA/Si, IBBA/Si, PBA/Si order. Overall fire risk was higher in the order of BA/Si < IBBA/Si < PBA/Si.

The fire resistance performance test methods and equipment overview on the marine plant (해양플랜트 기자재의 화재저항 성능에 관한 시험방법 및 설비의 개요)

  • Jeon, Jun-Pyo;Kim, Jung-Sik;Choi, Tai-Jin
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
    • /
    • 2012.04a
    • /
    • pp.113-116
    • /
    • 2012
  • 플랜트란 산업 기계, 전기 통신 기계등 여러 가지를 생산하는 공장을 의미하고 있다. 해양플랜트는 바다위에 설치된 시설이라고 볼 수 있으며 주로 원유 및 가스를 채취하여 시중에서 사용할 수 있도록 정유공정까지 거치는 대규모 설비라고 할 수 있다. 따라서 가연성 물질을 생산, 적재함으로 화재 및 폭발의 위험성이 상존하며 화재가 발생하면 인화성 물질로 인한 대규모 화재와 폭발로 인하여 인명과 재산피해의 규모 또한 가름하기가 어렵다. 본 논문에서는 해양플랜트 화재시 화재와 폭발 두 가지 위험성 중 제트화재에 저항을 가지는 기자재를 평가할 수 있는 ISO 22899-1 시험방법과 설비에 대하여 설명하고자 한다.

  • PDF

이상트리 자동합성을 위한 지식베이스 구축

  • 홍석천;허보경;황규석
    • Proceedings of the Korean Institute of Industrial Safety Conference
    • /
    • 1998.05a
    • /
    • pp.193-196
    • /
    • 1998
  • 화학플랜트는 폭발성, 유독성 물질의 제조와 취급하므로 사고 발생에 의한 영향은 대단히 크고, 또한 사고 후 몇 년에 걸쳐 그 주변사회에 영향을 미친다. 따라서 화학공장의 화재, 폭발 및 독극물 누출에 의한 사고 등과 같은 가능한 모든 유형의 위험을 예측하고 예방하기 위해서 위험성 평가를 수행해야 한다. 이에 공정안전관리(Process Safety Management, PSM)에 대한 사회적인 관심이 증가하면서 많은 연구자들이 위험성 평가방법을 개발하여 잠재적 위험을 발견하고 안전대책(safety guard)을 제시하여 공정의 안전성을 확보하고자 노력해 왔다. 그러나 개발된 위험성 평가기법은 대부분 전문가들의 수작업을 통해서 이루어짐으로 신뢰성과 안전성을 항상 보장해 주지 못한다. 따라서 근래에 위험성 평가과정을 자동화하고자 하는 연구가 활발히 진행되고 있다. (중략)

  • PDF

Introduction of Fire Protection Technology and Its Design Method of Offshore Facilities (해양플랜트의 방화대책 및 설계기술 소개)

  • Koo, Myeong Jun;Choi, Jae Woong;Yoon, Ho Byung
    • Transactions of the KSME C: Technology and Education
    • /
    • v.1 no.1
    • /
    • pp.49-57
    • /
    • 2013
  • The dimensioning accidental loads have been selected through suitable quantitative risk assessment and generally utilized important factors for offshore facility design. The fire hazard can be quantified with dimensioning fire loads. The main purposes of fire protection are to maintain the functionality of safety systems within evacuation period and to prevent the escalation from initial fire to uncontrolled catastrophic fire. This paper introduces the applications and the design methods of active and passive fire protections as representative measures of fire protection of offshore facilities. The passive fire protection requires the high initial installation cost and much difficulty on the operation of facilities and their maintenance. The oil major clients have asked the design contractors of offshore facilities to optimize the amount of passive fire protection with relevant engineering technology recently.

A Study on Safety by Risk Assessment of Clean Room (Clean Room 위험성 평가에 따른 안전성 확보에 관한 연구)

  • Song Yun-Suk;Yoon Myong-O;Hyun Seong-Ho;Lee Chang-Woo;Yoon Yo-Song;Kim Sung-Min
    • Fire Science and Engineering
    • /
    • v.18 no.4
    • /
    • pp.78-85
    • /
    • 2004
  • This research analyzes Clean Room accidents, and presents research Clean Room, major fire prevention standards of Clean Room (FM, IRI, and NFPA Code), various results from Fire Simulation of analysis. The results are : the smoke diffusion is very quick coupled with the Heating, Ventilating, and Air Conditioning (HVAC) systems under fire ; the possibility of getting the result and the possibility the role of the Sprinkler systems to reduce the diffusion of the smoke. We learn about the importance to stop operating Heating, Ventilating, and Air Conditioning (HVAC) systems and to operate the Sprinkler system for securing safety with fire detection. Therefore, This research will be contributing to secure safety of Clean Room.

An Investigation of Quantitative Risk Assessment Methods for the Thermal Failure in Targets using Fire Modeling (화재모델링을 이용한 목표 대상물의 열적 손상에 대한 정량적 위험성 평가방법의 고찰)

  • Yang, Ho-Dong;Han, Ho-Sik;Hwang, Cheol-Hong;Kim, Sung-Chan
    • Fire Science and Engineering
    • /
    • v.30 no.5
    • /
    • pp.116-123
    • /
    • 2016
  • The quantitative risk assessment methods for thermal failure in targets were studied using fire modeling. To this end, Fire Dynamics Simulator (FDS), as a representative fire model, was used and the probabilities related to thermal damage to an electrical cable were evaluated according to the change in fire area inside a specific compartment. 'The maximum probability of exceeding the damage thresholds' adopted in a conservative point of view and 'the probability of failure' including the time to damage were compared. The probability of failure suggested in the present study could evaluate the quantitative fire risk more realistically, compared to the maximum probability of exceeding the damage thresholds with the assumption that thermal damage occurred the instant the target reached its minimum failure criteria in terms of the surface temperature and heat flux.