• Title/Summary/Keyword: Korea Fire Institute

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Characterization of Live Fire Load in Buildings - Heat Release Characteristics of Typical Live Fire Load in Bookstore - (건축물의 적재가연물 특성에 관한 연구 -대형서점의 적재가연물 연소발열성상-)

  • Nam, Dong-Gun;Yuji, Hasemi;Jung, Jong-Jin;Lim, Woo-Sub;SaKong, Seong-Ho
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.11a
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    • pp.3-6
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    • 2008
  • Heat release characteristics of live fire load are an important parameter for performance oriented fire safety design of a building. While investigations have been carried out on the fire load and its burning behavior in office, residential and commercial buildings and so on, little effort has been paid for the rational treatment of fire load in bookstore. In this report, burning behavior of typical combustible objects in bookstore are studied by measuring heat release rates of bookshelf with book.

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Characterization of Fire Plume Ejected from an Opening (축소모형을 이용한 개구부 분출화염성상 연구)

  • Nam, Dong-Gun;So, Soo-Hyun;Lim, Woo-Sub;Lee, Jang-Won;Kim, Nam-Hyuk;Shin, Yi-Shul;Kwon, Young-Jin
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.10a
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    • pp.319-323
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    • 2010
  • 건축물의 창문 등에서 분출하는 화염 특성은 건축물의 화재안전성을 확보하는데 중요한 과제이다. 본 연구에서는 분출화염의 특성을 파악하여 건축물의 화재안전설계에 활용하기 위해 축소모형을 이용하여 화재실험을 실행하였다. 실험에서는 소규모 모형을 제작하고 가스버너를 화원으로 하여 개구부와 화원의 크기에 따른 분출열기류의 온도분포성상을 파악하였다.

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Experimental study on the suppression of fire fighting by using Compressed Air Foam system (압축공기포(Compressed Air Foam) 소화시스템을 이용한 구난역 열차 화재 진압에 관한 실험적 연구)

  • Park, Byoung-Jik;Shin, Hyun-Jun;Yoo, Yong-Ho;Park, Jin-Ouk;Kim, Hwi-Seong;Kim, Yang-Kyun
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.20 no.2
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    • pp.423-432
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    • 2018
  • Since the Daegu subway fire accident, people's perception of safety has increased, and all materials inside the train have been changed to incombustible materials. However, there is still a lack of development of fire extinguishing systems. Train components are mostly made of steel plates, and therefore it is very difficult to extinguish the train fire by using general fire extinguishing equipment. In this regard, this paper investigated rapid and easy methods of extinguishing the train fire by using compressed air foam systems through full-scale fire tests. To extinguish the fire of train at rescue station, window breakers were used to quickly destroy the train windows, and the compressed air foam system was inserted inside the train. As a result, the train windows were destroyed in 5 seconds, and the 11.88-MW fire was put out in 30 seconds by the compressed air foam discharged from the compressed air foam system inserted inside the train. For the future work, there is a need for further experimental studies to prevent the spread of fire and protect tunnel structures with the use of compressed air foam systems.

A study on the performance standards of autonomous fire extinguishing system (자율형 초동진압용 소화체계 성능기준에 관한 연구)

  • Kim, Namkyun;Kim, Hwiseong;Park, Jinouk;Park, Byoungjik;Kim, Yangkyun;Yoo, Yongho
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.22 no.6
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    • pp.655-667
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    • 2020
  • The final purpose of this study is to present the performance evaluation criteria (draft) of the autonomous initial suppression digestion system. In this study, in order to present the performance standards for the autonomous initial suppression fire extinguishing agent system currently in the development stage, the legal performance standards for fire extinguishing equipment currently applied to domestic buildings and the performance standards of similar overseas previous research were compared and analyzed. In addition, based on this, the minimum performance standards required for the digestive system for autonomous initial suppression were presented. When the performance of the digestive system for autonomous initial suppression is evaluated based on the results of this study and applied, it is judged that it is possible to respond more quickly in the situation of fire.

A Sensor Module Overcoming Thick Smoke through Investigation of Fire Characteristics (화재 특성 고찰을 통한 농연 극복 센서 모듈)

  • Cho, Min-Young;Shin, Dong-In;Jun, Sewoong
    • The Journal of Korea Robotics Society
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    • v.13 no.4
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    • pp.237-247
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    • 2018
  • In this paper, we describe a sensor module that monitors fire environment by analyzing fire characteristics. We analyzed the smoke characteristics of indoor fire. Six different environments were defined according to the type of smoke and the flame, and the sensors available for each environment were combined. Based on this analysis, the sensors were selected from the perspective of firefighter. The sensor module consists of an RGB camera, an infrared camera and a radar. It is designed with minimum weight to fit on the robot. the enclosure of sensor is designed to protect against the radiant heat of the fire scene. We propose a single camera mode, thermal stereo mode, data fusion mode, and radar mode that can be used depending on the fire scene. Thermal stereo was effectively refined using an image segmentation algorithm, SLIC (Simple Linear Iterative Clustering). In order to reproduce the fire scene, three fire test environments were built and each sensor was verified.

Validation of FDS for Fire in Underventilated Condition with Two rooms (환기가 제한된 두 개 격실 화재에서 FDS 검증분석)

  • Bae, Young-Bum;Keum, O-Hyun;Kim, Yun-Il;Ryu, Su-Hyun;Kim, Wee-Kyung;Park, Jong-Seuk
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.11a
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    • pp.438-443
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    • 2008
  • Fire model shall be verified and validated to reliably show the predictive capabilities for a specific use. In the process of model verification and validation, both the acceptable uses and limitation of fire model are established. In this study, the results of FDS simulation are compared with the data of PRISME experiment such as temperature, heat release rate, heat flux, product concentrations in the under-ventilated two-room condition. Furthermore, the sensitivity of FDS under ventilation condition changes are evaluated. FDS provide the reliable prediction for under-ventilated two-room fire scenario with slightly deviation.

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Comparitive Research for the Performance of Fire Protection Systems between Fire-Damaged Buildings and Non-Damaged Buildings of Properties Specified by the Law (특수건물 이재물건의 방재성능 비교조사)

  • 윤희상
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1996.11a
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    • pp.19-23
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    • 1996
  • This paper, as a part of reviewing the adequacy of reflecting the fire protection systems in calculating fire insurance premium, deals with the relations between the probability of fire accidents and the capability of fire protection systems in buildings

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A Study on the Fire Resistance Performance Concerning Types of Fire Protection Method and Load Ratio of High Strength Concrete Column Using The Wire Rope (와이어로프를 적용한 고강도 철근콘크리트 기둥의 내화공법 및 하중비에 따른 내화성능에 관한 연구)

  • Cho, Bum-Yean;Yeo, In-Hwan;Kim, Heung-Youl;Kim, Hyung-Jun;Kwon, In-Kyu
    • Fire Science and Engineering
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    • v.26 no.6
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    • pp.64-71
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    • 2012
  • The fire resistance test has been conducted under the standard fire & loading conditions to evaluate fire resistance performance, according to applying to methods of the lateral confinement reinforcement by prestressed Wire Rope and fire resistance reinforcement by Fiber-Cocktail and load ratio for high strength concrete column. The test result, for 60 MPa high-strength concrete column, It was indicated that applying to the wire rope has improved axial ductility in the fire condition, and fire resistance performance has been enhanced by more than 23 %. In addition to this, in case of applying the wire rope to 60 MPa high-strength concrete column, load can be judged that about 70 % of designed load is appropriate. If the Wire Rope and Fiber-Cocktail is applied to 100 MPa high-strength concrete column, It was shown that the fire resistance performance was enhanced by 4 times as much as applying only hoops.