• 제목/요약/키워드: Fire analysis

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소방력에 영향을 미치는 요인에 관한 연구 - 소방예산의 기본변수분석을 중심으로 - (A Study on Factors Influencing Fire Service Power - An Analysis of the Fundamental Variable for Fire Service Budget -)

  • 김진동
    • 한국화재소방학회논문지
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    • 제22권2호
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    • pp.9-19
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    • 2008
  • 최근 다른 행정조직에 비하여 연구가 부족했던 소방행정분야에 체계적인 변화가 나타나고 있다. 특히, 소방수요가 증가하고 형태가 다양화되고 있는데, 가장 시급한 일은 소방수요에 맞게 소방력을 확보하는 일이다. 이러한 소방력의 배치는 주민들의 사회적 후생의 만족으로 이어질 것이다. 본 연구의 목적은 소방력의 결정요인을 찾아보고 소방수요가사회 경제적 요인의 영향을 받는지 알아보는데 있다. 이를 위하여 본 연구에서는 소방력, 소방수요, 사회 경제적 요인, 재정적 요인에 대한 조사를 실시하였다. 그 다음, 이론적 배경과 과거연구를 근거로 4가지 가설을 설정하였다. 가설을 검증하기 위한 통계적 방법은 회귀방정식과 구조방정식분석이다. 본 연구 결과, 소방력은 소방수요와 재정적 요인에 의해서는 양(+)의 유의적인 영향을 받았으나, 사회 경제적인 요인에 의해서는 음(-)의 유의적인 영향을 받았다. 또한 소방수요는 경제적인 요인에 의해서는 양(+)의 영향을 받았으나, 사회적인 요인은 음(-)의 영향을 미친 것으로 나타났다.

화염 그림자 분석을 통한 최초 발화지점 확인에 관한 연구 (A Study on Determination of Fire Origin by Shadow analysis)

  • 이승훈;최민기;최돈묵
    • 대한안전경영과학회지
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    • 제16권3호
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    • pp.165-173
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    • 2014
  • This study is about determination of fire origin by using analysis of shadow that was recorded CCTV data at the fire scene. This analysis is based on straight and radiate nature of light. At fire experiment with about 1m flame, we conformed that 2-dimensional extension line is focused at the bottom of the fire. If the fire is burning at the same level with shadow, it indicate the point of origin exactly. In 3-dimensional analysis that connect extensional line between distinctive points the shadow and the objet, the line focused in the ${\emptyset}$ 50cm-circle. We estimate the reason of that is because of the character of combustion of gases. The line indicate not the point of origin but the flame that is over the point of origin. thus, you have to consider the line indicate the flame when you do 3-dimensional analysis.

원전 화재방호구역의 화재위험 분석을 위한 FDS 적용성 (Applicability of FDS for the Fire Hazard Analysis of the Fire Zone at Nuclear Power Plants)

  • 지문학;이병곤
    • 한국화재소방학회논문지
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    • 제20권4호
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    • pp.13-18
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    • 2006
  • 원자력발전소의 화재방호규정은 정성적인 화재위험성평가와 정량적인 화재위험도분석에 기반을 두며, 화재위험은 심층화재방어개념인 화재 예방, 화재 진압, 및 피해 최소화의 3가지 요소에 균형을 유지하면서 화재방호계획에 의해 관리되고 있다. 최근 화재위험 상세평가는 일반적으로 존모델 또는 필드모델을 이용하고 있다. 본 논문에서는 이런 추세에 따라 최신 화재모델링 도구인 FDS를 이용하여 원자력 발전소의 방화지역에 대한 정량적 화재위험분석 및 화재영향 평가가 가능한지 그 여부를 확인하였다. 이의 결과 화재모델링을 이용한 정량적 위험분석은 원자력발전소의 방화지역에 대한 정량적 위험도 분석뿐만 아니라 화재로 인한 원자로 노심 손상빈도를 개선할 수 있는 응용 도구로 활용될 수 있을 것으로 기대된다.

움직임 정보와 칼라정보 분석을 통한 화재검출 알고리즘 (Fire Detection Algorithm Based On Motion Information and Color Information Analysis)

  • 최홍석;문광석;김종남;박승섭
    • 한국멀티미디어학회논문지
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    • 제19권2호
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    • pp.180-188
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    • 2016
  • In this paper, we propose a fire detection algorithm based on motion information and color information analysis. Conventional fire detection algorithms have as main problem the difficulty to detect fire due to external light, intensity, background image complexity, and little fire diffusion. So we propose a fire detection algorithm that accurate and fast. First, it analyzes the motion information in video data and then set the first candidate. Second, it determines this domain after analyzing the color and the domain. This algorithm assures a fast fire detection and a high accuracy compared with conventional fire detection algorithms. Our algorithm will be useful to real-time fire detection in real world.

위험물 취급설비 화재 사고결과 영향평가 프로그램 개발 방향 (Development Direction of Fire Consequence Analysis Programs for Hazardous Materials)

  • 유재환;김용수;이영순;이경봉;이성우;박달재
    • 한국화재소방학회논문지
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    • 제13권4호
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    • pp.1-6
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    • 1999
  • 본 연구에서는 위험물 취급설비에 대하여 4가지 화재유형으로 나누어 사고 시나리오를 작성하였다. 그리고 작성된 시나리오를 바탕으로 SuperChems Pro., 3.1, SAFER Trace Ver., 8.2, PHAST Pro., Ver., 5.2 등 외국의 사고결과 영향평가 프로그램을 이용하여 사고결과 영향평가 프로그램의 적용 특성을 분석·평가하였으며 이들 프로그램의 분석, 적용 평가 결과 및 관련이론을 활용하여 이를 전산화 할 수 있는 화재모델 및 서브모델을 선정하여 제시하였다.

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국내 원자력발전소 화재안전 대책에 관한 연구 (A Study on the Fire Safety Measures of Korean Nuclear Power Plants)

  • 김학중;손봉세;허만성
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2003년도 춘계학술논문발표회논문집
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    • pp.259-264
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    • 2003
  • The fire protection system of Nuclear Power Plants(NPPs) is an integrated system that is applied multi-field technology. So, it needs synthetic design and analysis, that is, the plan of fire protection, fire compartment, fire detection, fire suppression, and success of safety shut down, etc. In case of a fire in NPPs, secure the safety of reactor and minimize the radioactivity contamination. For this purpose, perform the fire risk analysis and make up the deducted problem through the improvement of design or the change of operation process.

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통신케이블의 화재위험성 분석에 관한 연구 (A Study on the Analysis of Fire Hazards for Communication Cable)

  • 홍성호;박찬호;박상태;유송현
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 춘계학술대회 논문집 전기설비전문위원
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    • pp.192-194
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    • 2009
  • This study presents on the analysis fire hazards of communication cable. In order to analyze fire hazards fire retardant tests and con-calorimeter test is conducted. The fire retardant tests are IEC 60332-1 and UL 94 test. The results show that IEC 60332-1 test and It 9t test are not effective to estimate fire hazard. And various parameter is obtained by con-calorimeter test. It is necessary to analysis effectively fire hazards of cable for new fire retardant test.

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A Study on the fire-resistance of concrete-filled steel square tube columns without fire protection under constant central axial loads

  • Park, Su-Hee;Choi, Sung-Mo;Chung, Kyung-Soo
    • Steel and Composite Structures
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    • 제8권6호
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    • pp.491-510
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    • 2008
  • This paper presents a plan and guidelines that were drawn for Korean based research carried out on the fire-resistance of CFT columns. This research was carried out by reviewing the Korean regulations related to the fire-resistance of CFT columns and examining studies which had been made in Korea as well as overseas. The first phase of the study plan was to compare the fire-resistance of square CFT columns without fire protection (obtained through fire-resistance tests and numerical analyses) with estimated values (obtained through fire-resistance design formulas proposed in Korea and overseas). This comparison provided conclusions as outlined below. Fire-resistance tests conducted in this study proved that, when the actual design load is taken into consideration, square CFT columns without fire protection are able to resist a fire for more than one hour. A comparison was made of test and analysis results with the fire-resistance time based on the AIJ code, the AISC design formula and the estimation formula suggested for Korea. The results of this comparison showed that the test and analysis results for specimens SAH1, SAH2-1, SAH2-2 and SAH3 were almost identical with the AIJ code, the AISC design formula and estimation formula. For specimens SAH4 and SAH5, the estimation formula was more conservative than the AIJ code and the AISC design formula. It was necessary to identify the factors that have an influence on the fire-resistance of CFT columns without fire protection and to draw fire-resistance design formulas for these columns. To achieve this, it is proposed that numerical analyses and tests be conducted in order to evaluate the fire-resistance of circular CFT columns, the influence of eccentricity existing as an additional factor and the influence of the slenderness ratio of the columns. It is also suggested that the overall behavior of CFT structures without fire protection within a fire be evaluated through analysis simulation.

화재 입은 콘크리트의 기기분석을 통한 화재온도 추정 (Estimation of fire-temperature through instrumental analysis of Fire- Damaged Concrete)

  • 김성수;박광필;남바름;유주환
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2006년도 추계 학술발표회 논문집
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    • pp.913-916
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    • 2006
  • In this study, we conducted machinery analysis, such as differential thermal analysis, X-ray diffraction analysis and scanning electron microscope analysis, in order to predict fire temperature and to analyze fire damage in the case of fire on concrete structure. according to the machinery analysis and differential thermal analysis, concrete bought big creak over $300^{\circ}C$. these result can be utilized as good data in design for repair and reinforcement through rationally evaluating fire damage on concrete structure exposed to high heat or fire in the future.

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A New Approach to Statistical Analysis of Electrical Fire and Classification of Electrical Fire Causes

  • Kim, Doo-Hyun;Lee, Jong-Ho;Kim, Sung-Chul
    • International Journal of Safety
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    • 제6권2호
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    • pp.17-21
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    • 2007
  • This paper aims at the statistical analysis of electrical fire and classification of electrical fire causes to collect electrical fires data efficiently. Electrical fire statistics are produced to monitor the number and characteristics of fires attended by fire fighters, including the causes and effects of fire so that action can be taken to reduce the human and financial cost of fire. Electrical fires make up the majority of fires in Korea(including nearly 30% of total fires according to recent figures), The incorrect and biased knowledge for electrical fires changed the classification of certain types of fires, from non-electrical to electrical. It is convenient and required to develop the standardized form that makes, in the assessment of the cause of electrical fires, the fire fighters directly ticking the appropriate box on the fire report form or making an assessment of a text description. Therefore, it is highly recommended to develop electrical fire cause classification and electrical fire assessment on the fire statistics in order to categorize and assess electrical fires exactly. In this paper newly developed electrical fire cause classification structure, which is well-defined hierarchical structure so that there are not any relationship or overlap between cause categories, is suggested. Also fire statistics systems of foreign countries are introduced and compared.