• Title, Summary, Keyword: full scale fire test

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A Study on the Fire Characteristics of Sandwich Panels by ISO 9705 - Full-scale Room Test (ISO 9705 - Full-scale Room Test 시험방법을 이용한 샌드위치 패널의 화재 특성 연구)

  • Kweon, Oh-Sang;Yoo, Yong-Ho;Kim, Heung-Youl;Lee, Jeong-Il
    • Fire Science and Engineering
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    • v.23 no.6
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    • pp.39-45
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    • 2009
  • This paper studied on the fire characteristics of sandwich panels by ISO 9705 test (Full-scale room test). A comprehensive fire characteristics of sandwich panel was analyzed by applying the test result to the classification standard according to EN 13501-1 and Eurefic Research Program. Consequently, glass wool foam sandwich panel proved to be A class, incombustible - EPS Foam and incombustible - PUR Foam sandwich panels was class B. Also, EPS foam and PUR foam sandwich panels was class C because of flashover.

Design of the Full-Scale Fire Safety Evaluation Facility for Railroad Vehicle Fire (철도차량 실대형 화재안전 성능평가 장치 설계)

  • Yoo, Yong-Ho;Kim, Heung-Youl
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • pp.222-225
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    • 2008
  • To prove a lot of technical difficulties related to the safety management of a railroad fire effectively, we design for the full-scale fire test facility of the railroad vehicle. It will be consist of major 3 part - duct system with smoke cleaning system, measuring section and gas analysis system. The CFD simulation was also carried out to design of the hood and duct system optimization. The results will be help for basic research of the railroad fire safety.

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A Full-scale Fire Test of an Apartment House (공동주택 실물화재 실험)

  • Kim, Myung-Bae;Han, Yong-Shik;Choi, Byung-Il;Do, Kyu-Hyung
    • Fire Science and Engineering
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    • v.23 no.4
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    • pp.104-111
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    • 2009
  • To research about the fire spread in Korean apartment house, a full-scale fire test in a four-story apartment was executed. The fire started at the third floor, and originated from overheated cooking oil in the kitchen. The apartment included all combustibles in general house. Through measuring temperature, measuring the concentration of oxygen and observing, we investigated the fire spread inside the apartment house. As a result, we got the data of the time needed for the initiation of fire, the time for fire to spread into each area in the house, and the time required until flash-over was seen. Also we grasped the understanding of the fire spread to the upper floor.

A Study on the Performance of a Sprinkler System with Direct-Coupled Waterworks by Full-Scale Fire Test (실화재실험을 통한 상수도 직결형 스프링클러시스템의 성능에 관한 연구)

  • Jung, Jong-Jin;Nam, Dong-Gun;Lim, Woo-Sub
    • Fire Science and Engineering
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    • v.25 no.6
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    • pp.39-43
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    • 2011
  • In this research, full-scale fire test was performed on a real house for the evaluation of the performance of waterworks direct-coupled sprinkler system. The fire was set to occur as spontaneous combustion as the cooking oil overheats. The size of house is $56m^2$ and it consists of a living room, a kitchen, and a room. In order to verify the performance of waterworks direct-coupled sprinkler system, it was installed in the kitchen. The result of the test showed that the fire started from the kitchen enlarged up to its ceiling but it was soon exhausted as the sprinkler started to work. The pressure of the waterworks was 0.28 MPa when the sprinkler operated, by which it verified that fire could go out even by waterworks pressure of the general residence.

An experimental study on fire resistance of medical modular block

  • Kim, Hyung-Jun;Lee, Jae-Sung;Kim, Heung-Youl;Cho, Bong-Ho;Xi, Yunping;Kwon, Ki-Hyuck
    • Steel and Composite Structures
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    • v.15 no.1
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    • pp.103-130
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    • 2013
  • Fire performance and fire safety of high-rise buildings have become major concerns after the disasters of World Trade Center in the U.S. in 2001 and Windsor tower in Spain in 2005. Performance based design (PBD) approaches have been considered as a better method for fire resistance design of structures because it is capable of incorporating test results of most recent fire resistance technologies. However, there is a difficulty to evaluate fireproof performance of large structures, which have multiple structural members such as columns, slabs, and walls. The difficulty is mainly due to the limitation in the testing equipment, such as size of furnace that can be used to carry out fire tests with existing criteria like ISO 834, BS 476, and KS F 2257. In the present research, a large scale calorie meter (10 MW) was used to conduct three full scale fire tests on medical modular blocks. Average fire load of 13.99 $kg/m^2$ was used in the first test. In the second test, the weighting coefficient of 3.5 (the fire load of 50 $kg/m^2$) was used to simulate the worst fire scenario. The flashover of the medical modular block occurred at 62 minutes in the first test and 12 minutes in the second test. The heat resistance capacity of the external wall, the temperatures and deformations of the structural members satisfied the requirements of fire resistance performance of 90 minutes burning period. The total heat loads and the heat values for each test are calculated by theoretical equations. The duration of burning was predicted. The predicted results were compared with the test results, and they agree quite well.

The Assessment of Fire Suppression Capability of Water-Mist System for Machinery Engine Room (선박기관구역 미분무수 소화설비 화재진압 성능 평가)

  • Choi, Byung-Il;Han, Yon-Shik;Oh, Chang-Bo;Kim, Myung-Bae;Kim, Chang
    • Fire Science and Engineering
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    • v.21 no.2
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    • pp.111-117
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    • 2007
  • Full scale fire suppression test by water mist system were performed in machinery engine room ($20m{\times}15m{\times}10m$) according to IMO MSC/circ. 1165. The K-factor and operating pressure were 2.4 and 80 bar respectively. To assess the prediction capability of numerical simulation, FDS simulation was performed at the same operating condition with the full scale experiment. It was found that FDS simulation had the limitation for the fire extinguishing time prediction but was able to predict the spatial temperature distribution.

Full-scale Fire Suppression Test for Application of Water Mist System in Road Tunnel (미분무수 소화시스템의 도로터널 적용을 위한 실물 화재 실험)

  • Han, Yong-Shik;Choi, Byung-Il;Kim, Myung-Bae;Lee, Yu-Whan;So, Soo-Hyun
    • Fire Science and Engineering
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    • v.25 no.3
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    • pp.51-56
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    • 2011
  • The full-scale experiments are carried out to investigate the fire suppression characteristics of water-based fire fighting systems in a road tunnel. Applied systems are the low-pressure water spray system at 3.5 bar and the high-pressure water mist system at 60 bar. The water flow rate of the high-pressure system is one sixth only of the water spray system. A passenger car and a heptane fuel pan with area of $1.4m^2$ are used as fire sources. A blower system is installed at the tunnel exit to realize the longitudinal ventilation conditions (0.9~3.8 m/s) in the tunnel. Temperatures from the fire source to the down-stream direction are measured by K-type thermocouple trees. The experimental results show that the cooling effect of the high pressure water mist system in the test conditions were equivalent to that of the low pressure water spray system for B-class fire.

Temperature distribution in a full-scale steel framed building subject to a natural fire

  • Wald, Frantisek;Chladna, Magdalena;Moore, David;Santiago, Aldina;Lennon, Tom
    • Steel and Composite Structures
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    • v.6 no.2
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    • pp.159-182
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    • 2006
  • Current fire design codes for determining the temperature within the structural elements that form part of a complete building are based on isolated member tests subjected to the standard fire. However, the standard time-temperature response bears little relation to real fires and doesn't include the effects of differing ventilation conditions or the influence of the thermal properties of compartment linings. The degree to which temperature uniformity is present in real compartments is not addressed and direct flame impingement may also have an influence, which is not considered. It is clear that the complex thermal environmental that occurs within a real building subject to a natural fire can only be addressed using realistic full-scale tests. To study global structural and thermal behaviour, a research project was conducted on the eight storey steel frame building at the Building Research Establishment's Cardington laboratory. The fire compartment was 11 m long by 7 m wide. A fire load of $40kg/m^2$ was applied together with 100% of the permanent actions and variable permanent actions and 56% of live actions. This paper summarises the experimental programme and presents the time-temperature development in the fire compartment and in the main supporting structural elements. Comparisons are also made between the test results and the temperatures predicted by the structural fire Eurocodes.

A Full-scale Fire Test of an Apartment House (공동주택 실물화재 실험)

  • Kim, Myung-Bae;Han, Yong-Shik;Choi, Byung-Il;Do, Kyu-Hyung;Lee, Yu-Whan
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • pp.415-422
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    • 2009
  • 국내 저층 공동주택 화재시의 화재 전파 경로와 상층으로의 화재 전파를 살펴보기 위하여 4층 공동 주택을 대상으로 실물화재 실험을 수행하였다. 화재는 3층 주택에서 발화하는 것으로 하였고, 초기 화원은 주방에서 과열된 식용유에 발화되어 발생하는 것으로 하였다. 주택 내부 가연물은 일반 가정의 필수 가연물을 모두 포함 하였다. 내부 화재 성상을 확인하기 위하여 가시화, 주요부의 온도측정, 산소농도 측정을 수행하였다. 실험 결과 초기 화원의 발화 시간, 화재 층 내부 각 구획으로의 전파시간, 전역화재 발생시간을 파악하였으며, 상층으로의 연소확대 경로를 파악하였다.

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A Experimental Study on Combustion-Stability Rating in a Subscale Chamber (모형 연소실에서 분사기 연소 안정성 평가에 관한 실험적 연구)

  • Kim, Chuljin;Sohn, Chae Hoon
    • 한국연소학회:학술대회논문집
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    • pp.77-78
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    • 2012
  • To predict combustion instability in actual full-scale combustion chamber of rocket engines, air-injection test is proposed with scaling techniques. From the data, damping factors have been obtained as a function of hydraulic parameter and the data give us instability map. Two instability regions are presented and it is found that they coincide reasonably with them from hot-fire test with full-scale flow rates. Accordingly, the proposed approach can be applied cost-effectively to stability rating of jet injectors when mixing of fuel and oxidizer jets is the dominant process in instability triggering.

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