• Title/Summary/Keyword: Fire Hazard

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An Analysis of the Fire Load and Ventilation Factor in Underground Commercial Space (지하상업공간의 환기계수 및 화재하중 분석)

  • Choo Yeun-Hee;Lee Ji-Hee;Hong Won-Hwa
    • Journal of the Korean housing association
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    • v.17 no.2
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    • pp.135-142
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    • 2006
  • The purpose of this study is to obtain the fire safety for underground commercial space with analysing fire loads and ventilation factors. It was adopted the investigation method of field survey with commercial uses for more confidential data. The results of this study can be summarized as follows; 1) The ventilation factor shows $0.04{\sim}0.24m^{1/2}$ and it may develop ventilation-controlled fires which have much fire hazard more than fuel-controlled fires. 2) The highest value of fire load is $158.48kg/m^2$ and appeared in footwear shop which has the value $137.35kg/m^2$ for unfixed combustibles and $21.13kg/m^2$ for fixed combustibles. 3) The average value of burning rates which mean the velocity of fire development and the fire damage range is 0.143. Therefore it is desired to decrease the combustibles of compartment and is needed the method of dispersion arrangement of goods and storage to steel cabinet and so on.

Present Status of Fire PSA Methodology for Risk-Informed Application (위험도 정보 활용을 위한 화재 PSA 방법론 개선 연구 현황)

  • 이윤환;양준언
    • Fire Science and Engineering
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    • v.17 no.1
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    • pp.40-45
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    • 2003
  • In this paper many vulnerable areas of the present fire PSA methodology were revealed to apply risk-informed fire protection to nuclear power plants. The results and insights from the fro PSA should be used as a part of a risk-informed decision making process rather than the complete technical basis for decision making. The degree of support and scope of applications is dependent on the accuracy and validity of the model used in the fire PSA. Accordingly; the usefulness of the fire PSA will increase as ongoing research and development efforts lead to improvements in the state of the art technology and as improvements in the implementation of the state of the art technology lead to more consistent results.

A Study on the Fire Prevention of Temporary Constructions Connected with Factory Buildings (공장건물에 연결된 가설건축물 화재예방에 관한 연구)

  • 이정용;이창섭
    • Fire Science and Engineering
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    • v.17 no.1
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    • pp.68-75
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    • 2003
  • Temporary constructions are defined as constructions for temporary use, but frequently they are used long like permanent constructions and connected with main constructions. In this case, fire hazardousness increase. But there is no way to control this hazard in our system. This study include investigation of present related law survey about sample complex, collection of related lawsuit result and estimation of hazardousness of each contemporary construction type. The conclusion is that the article that specify distance between main construction and temporary one should be created in the architectural law. Or to apply fire service law to area of temporary construction, fire service law should be changed properly.

Hazard analysis by fire simulation in an apartment fire (화재 시뮬레이션을 이용한 아파트 화재 위험성 분석)

  • Kim, Tae Kwon;Cha, Woo Sub
    • Journal of Advanced Marine Engineering and Technology
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    • v.38 no.4
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    • pp.383-388
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    • 2014
  • This study predicts damaging risk factors in apartment fire situation by using CFAST. The software was developed by Building and Fire Research Lab, that is government affiliated organization of the National Institute of Standards Technology. This analysis scenarios werec well verified by experimental results. Situation of the living room and the second room as well as the bedroom tends to be qualitatively the same with the experimental data. In case of apartment fire, it is predicted that they have been got into trouble with dizziness, badly vomiting and paralysis symptoms due to short oxygen and excessive carbon dioxide when persons were left out in the living room or second room.

A Comparison Study on Fire Water Supply Duration and Capacity of Water Based Fire Suppression System of the United States, Japan, China and Korea (우리나라, 중국, 일본, 미국 수계소화설비 소화수 공급시간 및 소화수원에 대한 비교 연구)

  • Min, Se-Hong;Nam, Yu-Hyun
    • Fire Science and Engineering
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    • v.27 no.4
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    • pp.13-20
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    • 2013
  • Buildings in Korea have been getting higher recently and been being changed environmentally since the Korean fire standard was released in 1968. It should be established to make a appropriate correspondence of fire fighting against the those environmental changes. Most of all, fire water capacity which is basis of fire fighting service is a very significant factor. In this paper, the Korean fire water capacity and fire water duration were compared with China, Japan and the United states. Furthermore, fire water capacity, fire water duration, flow rate were compared by hazard classification, occupant use, number of floor and area with water based fire suppression system. This study has been surveyed to show what are difference, similarity, advantage and disadvantage on fire water capacity in the Korean standard comparing with neighboring countries like China, Japan as well as the United states. This study could be found what level the Korean fire water capacity is. So it suggests about more developed standard on fire water capacity with the result of analysis and comparison.

A study on the escape measures using fire fighters elevator (비상용승강기를 이용한 피난방안에 관한 연구)

  • Yoon, Woo-Jin;Sin, Tae-Gyun;Hong, Ji-Hoon;Cho, Won-Chul;Lee, Tae-Sik
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.640-644
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    • 2007
  • The purpose of the present research is to provide a plan for an effective evacuation of residents and people who's in need of evacuation (such as children, the handicapped, and the old) and for the situation when staircase is not available for evacuation, by means of analyzing the evacuation behavioral characteristics of the residents or the evacuators and suggesting an evacuation plan using an emergency elevator in order to minimize casualties in case when fire broke out in a skyscraper.

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A Case Study of Jet fire Estimation Model on the High Pressurized Pipeline of Natural Gas (고압가스배관의 제트화재 예측모델에 관한 사례연구)

  • Lee, Sang-Gon;Kim, Dong-Sung;Hwang, Cheol-Seung;Cho, Won-Cheol;Lee, Tae-Shik
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.371-375
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    • 2007
  • Due to the benefit of QRA(Quantitative Risk Analysis) method, we can evaluate the risk, and it helps us to make our safe. We also depend to some of correlation equations to assess the jet fire at high pressurized transmission line. However, we can evaluate the risk within limitations. After comparing the current model to investigation report of natural gas transmission line accident at EL-Paso in U.S., this study concludes that more research and study are required because currently developed model cannot expect factors of the fire risk such as flame configuration.

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The Restoration of Forest Fire Area in Kagawa Prefecture, Japan (일본 가가와현 산불피해지의 복구대책)

  • Chun, Kun-Woo;Lee, Si-Young;Lim, Young-Hyup;Kakihara, Toshiko;Ezaki, Tsugio
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.238-241
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    • 2007
  • The forest seemed apparently to die on the forest fire area in Honjima, Kagawa Prefecture, Japan. However, the soil that became growing basic of vegetation hardly suffered damage, and the forest recovery was started by the sprout, etc. in the next year. For restoration of forest fire area, the fascine mulching works and log barrier works using the damaged trees were used for the upper-stream, and chack dam and erosion control dam were set up in the downstream. Also, the forest restoration was tried with the plants and the microorganism that inhabit in Honjima to preserve a peculiar forest ecosystem.

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The investigation of erosion control works' condition in East sea fire area (동해안 대형 산불피해지의 사방사업 실태진단)

  • Yeom, Kyu-Jin;Chun, Kun-Woo;Cha, Doo-Song;Lee, Si-Young;Lee, Hyun-Kyu;Lee, Myung-Woog;Kim, Youn-Jin;Lee, Jin-Ho;Kim, Suk-Woo;Tsugio, Ezaki
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.509-512
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    • 2007
  • The fire area need management to prevent enlargement of collapes and sinkage. and it need that repair Vegetation sack work, Soil arresting structure, Terrace-sodding works, Direct seeding works in greening works and Water cushion in erosion control dam. The whole of the Concrete stream grade stabilization structures were broken, it need to be repair. As pass the time, a lot of structures were abandoned. Therefore, it need to reorganize erosion control structures and the method of construction in the fire area

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Experiments on Egress of Persons with Mobile Disability in Train Car (철도차량 화재 시 지체 장애인 피난 실험)

  • Kim, Jong-Hoon;Kim, Woon-Hyung;Roh, Sam-Kew;Lee, Duck-Hee;Jung, Woo-Sung
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.1673-1679
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    • 2009
  • Korean railroad company is continuously improving the service for the disabled. They also install and reform many facilities for them. However, They didn't consider the egress of the disabled when fire occurred until today. At present, fire hazard analysis and risk assessment are introduced into Korea regulation for improving fire safety performance of train car and railroad facilities. Fire safety evaluation for the railroad conducted in Korea didn't generally consider the disabled. In the present situation, the study for the egress of the disabled in train car was needed. The egress experiment was conducted to measure the movement speed of the disabled who didn't walk or walk very slow.

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