• 한국화재소방학회논문지
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• 제23권6호
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• pp.39-45
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• 2009

본 연구에서는 샌드위치패널의 종합적인 화재특성을 파악하기 위하여 스티로폼, 난연 스티로폼, 우레탄폼, 난연 우레탄폼, 그라스울 샌드위치패널에 대해 국제 화재 시험 규격인 ISO 9705 시험(Full-scale room test)을 실시하였다. 이를 바탕으로 EN 13501-1 및 Eurefic Research Program에서 제시하고 있는 분류기준에 적용하여 샌드위치패널의 종합적인 화재특성을 분석하였다. 그 결과 그라스울 샌드위치 패널은 A class, 난연 우레탄폼과 난연 스티로폼 샌드위치 패널은 B class로 나타났다. 플래시오버가 발생한 스티로폼, 우레탄폼 샌드위치 패널은 E class 로 나타났다.

• 한국화재소방학회논문지
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• 제25권6호
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• pp.39-43
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• 2011

본 연구에서는 상수도 직결형 스프링클러 시스템의 성능을 평가하기 위하여 실물 주택을 대상으로 화재 실험을 수행하였다. 실물 주택의 크기는 $56m^2$이며 거실, 주방, 방으로 이루어져 있으며, 화재는 대두유가 과열되어 자연발화가 발생하여 일어나게 하였다. 상수도 직결형 스프링클러시스템의 성능을 확인하기 위하여 주방에 스프링클러시스템을 설치하였다. 실험결과 주방에서의 발화로 시작된 화재는 주방천장까지 확대 되었으나 스프링클러가 동작하면서 화재는 진압되었다. 스프링클러가 동작할 때의 상수도 압력은 0.28 MPa이었으며 이 결과로서 일반 주택의 상수도압력으로도 소화가 가능함을 확인할 수 있었다.

• 한국해양공학회지
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• 제22권3호
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• pp.64-70
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• 2008

A full-scale field experiment is an important part in the design of ships and offshore structures. Full-scale tests in the ice-covered sea, however, are usually very expensive and difficult tasks. Model tests in a refrigerated ice tank may substitute this difficulty of full-scale field tests. One of the major tasks to perform proper model tests in an ice towing tank is to select a realistic material for model ice which shows correct similitude with natural sea ice. This study focuses on the testing material properties and the selection of model ice material which will be used in an ice model basin. The first Korean ice model basin will be constructed at the Maritime & Ocean Engineering Research Institute (MOERI) in 2009. With an application to the MOERI ice model basin, in this study the material properties of EG/AD/S model ice of IOT (Institute for Ocean Technology) Canada, were tested. Through comprehensive bending tests, the elastic modulus and the flexural strength of EG/AD/S model ice were evaluated and the results were compared with published test results from Canada. Instead of using an ice model basin, a cold room facility was used for making a model ice specimen. Since the cold room adopts a different freezing procedure to make model ice, the strength of the model ice specimen differs from the published test results. The reason for this difference is discussed and the future development for a making model ice is recommended.

• 한국화재소방학회논문지
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• 제21권2호
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• pp.111-117
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• 2007

IMO MSC/circ. 1165 규정에 따라 미분무수를 이용한 선박 기관구역($20m{\times}15m{\times}10m$)에서의 실물화재 소화실험을 수행하였다. K-factor 2.4인 노즐을 사용하였으며 작동압력은 80 bar이다. 미분무수의 화재진압 특성을 수치적으로 예측하기 위하여 FDS를 사용하여 실험과 같은 조건에서의 전산시뮬레이션을 수행하였다. 전산 시뮬레이션 결과 화재 전산 시뮬레이션 기법이 화재소화시간 예측에는 한계를 가지나, IMO MSC/circ. 1165 규정의 공간 내 온도분포 제어 성능의 예측을 위해서 유용하게 활용될 수 있음을 보였다.

• 대한인간공학회지
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• 제16권1호
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• pp.107-117
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• 1997

It is necessary to evaluate HMI inaspects of human factors in the design stage of MMIS(man machine interface system) and feedback the result of evaluation because operators performance is mainly influenced by the HMI. Therefore, the MMIS design should be reflected the operators psychological, behavioral and physiological characteristics in the interaction with human machine interface(HMI) in order to improve the safety and availability of the MMIS of a nuclear power plant(NPP) by reduction of human error. The development of human factors experimental evaluation techniques and integrated test facility(ITF) for the human factors evaluation become an important research field to resolve hi,am factors issues on the design of an advanced control room(ACR). We developed am ITF, which is aimed to experiment with the design of the ACR and the human machine interaction as it relates to the control of NPP. This paper presents the development of an ITF that consists of three rooms such as main test room(MTR), supporting test room(STR) and experiment control room(ECR). And, the ITF has a various facilities such as a human machine simulator(HMS), experimental measurement systems and data analysis and experiment evaluation supporting system(DAEXESS). The HMS consists of full-scope simulation model of Korean standard NPP and advanced HMI based on visual display nits (VDUS) such as touch color CRT, large scale display panel(LSDP), flat panel display unit and so on.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2006년도 전기학술대회논문집
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• pp.157-162
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• 2006

INERGEN 의 성능시험으로서 가장 확실한 방법은 직접적인 전량 방출시험이 최선의 방법이나 고비용, 안전문제 및 시험절차의 난이성 등의 이유로 NFPA 2001 이나 선급에서는 직접적인 방출 시험을 가급적 규제하고 있다. 지금까지는 이론적 계산을 통한 서류제출로 대체하거나, 간접 시험방법인 Door Fan Test 를 통하여 소화설비의 적정성을 평가하는 것이 보편적이었다. 하지만 이번 WOODSIDE 선주사의 전례없는 요구로 SHI 에서는 전량 방출시험을 I,G.G. Room 에 대해 수행하게 되었다. 본 자료에서는 조선설게자 관점에서 Full scale test 를 통한 Inergen 성능시험 최적화 방법을 제시하고자 한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.585-593
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• 2011

Actual fire test under a laboratory and fire simulation by using computer are considered into main methodology in order to estimate and predict fire size of railway train. Even if practical fire size could be obtained from the full-model railway car test such as a large scale cone-calorimeter test, it is not always possible and realistic due to that expensive cost and attendant dangers could in no way be negligible. In this point of view, fire simulation analysis method based on the computational fluid dynamics could be proposed as an alternative and it seems to be also efficient and reasonable. However, simulation results have to be verified and validated in accordance with the proper procedure including comparing analysis with the actual fire test. In this paper, fire load and growth aspect was investigated through the room corner test (ISO 9705) for the mock-up model of the actual railway car. Then, it was compared with the output data derived from the simulation by using Pyrolysis Model of the FDS (Fire Dynamics Simulator, by NIST) for the exact same domain and condition corresponding with pre-performed room-corner test. This preliminary verified and validated fire modeling method could enhance the reliability of output data derived from the fire simulation under the similar domain and condition.

• 한국화재소방학회논문지
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• 제32권6호
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• pp.28-33
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• 2018

건축물 구획공간에 따른 화재성상 및 열방출율을 측정하기 위하여 실물규모 침대 매트리스의 표준화재시험방법(KS F ISO 12949 : 2011)으로 화재시험을 수행하였다. 개방형공간과 구획공간 모두 버너착화 후 초기 약 3분까지는 유사한 화재성장의 경향을 보이는 것으로 확인되었다. 3분후 구획공간에서의 열방출율이 개방형 공간보다 증가되어 높은 것으로 확인되었다. 침대 매트리스(SS)의 경우, 개방형 공간에서의 최대열방출율은 735 kW이며, 구획공간에서의 최대열방출율은 992 kW 로 측정되었다. 침대 매트리스(Q)의 경우 3분후 구획공간에서의 열방출율이 개방형 공간보다 급격하게 증가되는 것으로 확인되었다. 개방형 공간에서의 최대열방출율은 1,087 kW, 이 때의 측정시간은 346s 이며, 구획공간에서의 최대열방출율은 2,127 kW, 이때의 측정시간은 287 s 측정되어 구획공간에 따른 최대열방출율 및 측정시간의 차이가 확인되었다.

• 한국태양에너지학회 논문집
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• 제28권6호
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• pp.78-86
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• 2008

The aim of this paper is to show the daylight environment of a light pipe system according to sun movement. A light pipe system has been mounted on the roof of the windowless full scale model: the solar spot has diameter of 0.65m and is 1.3m long, giving an aspect ratio of 1:2. The full scale model was installed on the rooftop of the SHINAN apartment in Yongin city that has no obstructions against sunlight. The test room is equipped with sensors for the measurements of the internal illuminance and has an area of 6m(W)$\times$6m(D)$\times$4m(H). The system has been monitored with a data-logger to evaluate the cumulative distribution of illuminance on a floor-plane from 16th, April to 29th, May, 2008 over one month and selected clear sky condition. For the daylight performance of floor area, the totally 49 measuring points has been used to determine the internal illuminance and an HP datalogger(HP34970A) records the measurements for one consecutive month. The horizontal external illuminance has been measured with two outdoor sensors. This paper presents the results of monitoring light pipe system with internal/external illuminance ratio and cumulative frequency distribution of floor-plane illuminance are discussed The results show that lightpipe is proficient device for introducing daylight into the building. However It provided different daylight indoor environment with wide or narrow Interquatile range of illuminance, internal/external illuminance ratio and cumulative frequency distribution according to solar positions under suuny sky condition. For more achieving the improvement of lightpipes also include energy savings, user visual comfort with various indicators; seasonal solar height, room and lightpipes geometries.

• Nuclear Engineering and Technology
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• 제47권6호
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• pp.776-790
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• 2015

Background: The advanced spent fuel conditioning process facility (ACPF) of the irradiated materials examination facility (IMEF) at the Korea Atomic Energy Research Institute (KAERI) has been renovated to implement a lab scale electrolytic reduction process for pyroprocessing. The interior and exterior structures of the ACPF hot cell have been modified under the current renovation project for the experimentation of the electrolytic reduction process using spent nuclear fuel. The most important aspect of this renovation was the installation of the argon compartment within the hot cell. Method: For the design and system implementation of the argon compartment system, a full-scale mock-up test and a three-dimensional (3D) simulation test were conducted in advance. The remodeling and repairing of the process cell (M8a), the maintenance cell (M8b), the isolation room, and their utilities were also planned through this simulation to accommodate the designed argon compartment system. Results and conclusion: Based on the considered refurbishment workflow, previous equipment in the M8 cell, including vessels and pipes, were removed and disposed of successfully after a zoning smear survey and decontamination, and new equipment with advanced functions and specifications were installed in the hot cell. Finally, the operating area and isolation room were also refurbished to meet the requirements of the improved hot cell facility.