• Title/Summary/Keyword: 화재위험성평가

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The Study on Real Scale Fire Test of Building Exterior Wall Assemblies (건축물 외장재 수직확산 실대형 화재실험에 관한 연구)

  • Kweon, Oh-Sang;Yoo, Yong-Ho;Kim, Heung-Youl
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2011.04a
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    • pp.295-300
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    • 2011
  • 국내 건축물 외장재의 화재위험성 판단을 위한 기준 설정 및 건축물 외장재 수직확산 방지를 위하여 국내 외 실규모 화재실험을 비교 분석하였다. 현재 미국, 영국 등의 화재안전선진국들에서는 NFPA 285, BS 8414-1 등의 실대형 화재 실험을 통하여 외장재의 화재위험성을 판단하고 있다. 이에 본 연구에서는 국내 외 건축물 외장재의 수직화재확산 성능 평가 방법들의 비교 분석을 통하여 국내 실정에 맞는 실대형의 화재실험 방법을 결정하고자 하였다. 본 결과를 통해 건축물의 단위 공간에서 화재가 발생하여 화재의 성장이 플래시오버에 도달한 후 창문 등의 개구부를 통하여 화염이 출화되었을 때 이러한 화염에 의한 건축물 외장재의 수직화재 확산 성능 평가하는 건축물 외장재 수직확산 실대형 화재실험 장비를 개발하고자 하였다.

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A Demand Survey on Major Fitness of Curriculum of Fire Risk Prediction and Assessment (화재위험성 예측평가분야 교육과정의 전공 적합도에 대한 수요조사)

  • Lee, Se-Myeoung
    • Fire Science and Engineering
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    • v.30 no.6
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    • pp.130-136
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    • 2016
  • A university needs to analyze and improve its curricula with the perspective of the consumer to develop a syllabus for the training of industry-demand customized human resources. Accordingly, this paper surveyed the demand of fire-related industry workers to evaluate the major fitness of the curriculum of fire risk prediction and assessment and carried out descriptive statistical analysis, factor analysis, cluster analysis, and one-way ANOVA based on the results. According to the analysis, fire-related industry workers reported that the curriculum of fire risk prediction and assessment is suitable for majors. In addition, they were greatly aware of the necessity of basic major and common major subjects among subjects of fire risk prediction and assessment. The results of this analysis will provide the basic data to improve the curriculum continuously in the future.

A Study on Flame Propagation Model for Urban Fires (도시화재 화염전파 모델에 관한 연구)

  • Koo, In-Hyuk;Shin, Yi-Chul;Kwon, Young-Jin;Nam, Dong-Gun;Yoshihiko, Hayashi
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2009.04a
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    • pp.333-338
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    • 2009
  • 우리나라는 건축물 화재 및 지진으로 인한 화재의 위험성이 증가해 가면서 시가지 화재에 대한 위험성이 점차 늘어나고 있다. 하지만 이에 대한 대응책은 미비한 실정이다. 반면 일본의 경우는 과거의 화재사례를 토대로 시가지 화재에 대한 대응책 및 시뮬레이션 개발이 수행되었으며 이를 통해 각 지구의 화재위험성을 평가하여 대책을 마련하고 있다. 본 연구에서는 이러한 시가지 화재 시뮬레이션의 화염전파 모델에 관하여 소개함으로서 향후국내의 시뮬레이션 개발에 있어서 기본적인 방향을 제시하고자 하였다.

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Fire Risk Index and Grade Evaluation of Combustible Materials by the New Chung's Equation-XII (새로운 Chung's equation-XII에 의한 연소성 물질의 화재위험성지수 및 등급 평가)

  • Yeong-Jin Chung;Eui Jin
    • Applied Chemistry for Engineering
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    • v.34 no.4
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    • pp.388-396
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    • 2023
  • The evaluation of fire risk for combustible materials was carried out using Chung's equations-X, Chung's equations-XI, and Chung's equation-XII, which were newly established. The fire risk index-XII (FRI-XII) and fire risk rating (FRR) were calculated for specimens including camphor tree, cherry, rubber tree, and elm. The combustion characteristics were determined using a cone calorimeter according to ISO 5660-1. Chung's equations caculated the fire performance index-X (FPI-X) and fire growth index-X (FGI-X) values ranged from 89.34 to 1696.75 s2 /kW and from 0.0006 to 0.0107 kW/s2 , respectively. In addition, the fire performance index-XI (FPI-XI) and fire growth index-XI (FGI-XI) varied from 0.08 to 1.48 and from 0.67 to 11.89, respectively. The fire risk index-XII (FRI-XII), which is an indicator of fire risk, showed that camphor tree had a value of 148.63 (fire risk rating: G), indicating a very high fire risk. This suggests that combustible materials with a high concentration of volatile organic compounds have lower FPI-X and FPI-XI values, higher FGI-X and FGI-XI values, and consequently higher FRI-XII values, indicating an increased fire risk.

Rating Evaluation of Fire Risk for Combustible Materials in Case of Fire (화재 시 연소성 물질에 대한 화재 위험성 등급 평가)

  • Chung, Yeong-Jin;Jin, Eui
    • Applied Chemistry for Engineering
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    • v.32 no.1
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    • pp.75-82
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    • 2021
  • This study investigated the fire risk assessment of woods and plastics for construction materials, focusing on the fire performance index-III (FPI-III), fire growth index-III (FGI-III), and fire risk index-IV (FRI-IV) by a newly designed method. Japanese cedar, red pine, polymethylmethacrylate (PMMA), and polyvinyl chloride (PVC) were used as test pieces. Fire characteristics of the materials were investigated using a cone calorimeter (ISO 5660-1) equipment. The fire performance index-III measured after the combustion reaction was found to be 1.0 to 15.0 with respect to PMMA. Fire risk by fire performance index-III increased in the order of PVC, red pine, Japanese cedar, and PMMA. The fire growth index-III was found to be 0.5 to 3.3 based on PMMA. Fire risk by fire growth index-III increased in the order of PVC, PMMA, red pine, and Japanese cedar. COpeak concentrations of all specimens were measured between 106 and 570 ppm. In conclusion, it is understood that Japanese cedar with a low bulk density and PMMA containing a large amount of volatile organic substances have a low fire performance index-III and high fire growth index-III, and thus have high fire risk due to fire. This was consistent with the fire risk index-IV.

Rating of Fire Risk of Combustible Materials by the New Chung's Equation-IX (새로운 Chung's equation-IX에 의한 연소성 물질의 화재 위험성 등급 평가)

  • Yeong-Jin Chung;Eui Jin
    • Applied Chemistry for Engineering
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    • v.34 no.2
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    • pp.144-152
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    • 2023
  • To evaluate the fire risk of combustible materials, Chung's equations VII, VIII, and IX were newly established. The fire risk index-IX (FRI-IX) and fire risk rating (FRR) were calculated. Ginkgo, dawn redwood, toona, lime, walnut, and polymethylmethacrylate (PMMA) were selected as test specimens. The combustion characteristics were evaluated using a cone calorimeter according to ISO 5660-1. After combustion, the fire performance index-VII (FPI-VII) of the specimens, varied between 15.15 and 182.53 s2/kW, as determined by Chung's equations, and the fire growth index-VII (FGI-VII) varied between 0.0023 and 0.0165 kW/s2. The fire performance index-VIII (FPI-VIII) based on PMMA varied between 0.29 and 3.45, and the fire growth index-VIII (FGI-VIII) varied between 2.88 and 20.63. The FRI-IX, which is the fire risk rating, showed dawn redwood has a very high fire risk, with FRI-IX values of 71.14 (fire risk rating: G). Therefore, wood with a large amount of volatile organic compounds and a low bulk density showed a high value of FRI-IX by lowering FPI-VII and FPI-VIII and increasing FGI-VII and FGI-VIII.