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배용범(Bae, Young-Bum),금오현(Keum, O-Hyun) 한국화재소방학회 2011 한국화재소방학회 학술대회 논문집 Vol.2011 No.추계
원전 화재 안전정지 기능 확보를 위해 내화성능이 있는 방화벽을 설치, 관련 기기 이설 혹은 보호체 시공을 통하여 해결해 왔으며, 부분적으로 성능기반적인 분석방법을 활용하여 충분히 화재격리 할 수 있음을 입증하여 왔다. 본 논문에서는 부분적으로 적용되었던 성능기반적인 분석방법을 보완하기 위한 방법론으로 화재 확률론적 안전성분석방법론을 소개하고 국내외 적용 현황 및 향후 방안을 제시하였다.
김위경(Kim, Wee-Kyong),금오현(Keum, O-Hyun) 한국화재소방학회 2011 한국화재소방학회 학술대회 논문집 Vol.2011 No.추계
원자력발전소 화재방호는 소방법령에서 요구하는 인명안전 및 재산보호에 대한 요건이외에도 원자력법령에서 요구하고 있는 원자로의 안전정지 및 방사성물질 누출제한에 대한 요건을 만족시켜야 한다. 본 논문에서는 소방시설에 대한 소방법령 적용시 문제점과 현재 원전에 대한 화재방호 규제현황에 대하여 소개하고 원전 화재안전성 향상을 위한 규제방향을 제시하고자 한다.
배용범(Bae, Young-Bum),금오현(Keum, O-Hyun),김윤일(Kim, Yun-Il),류수현(Ryu, Su-Hyun),김위경(Kim, Wee-Kyung),박종석(Park, Jong-Seuk) 한국화재소방학회 2008 한국화재소방학회 학술대회 논문집 Vol.2008 No.추계
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.
류수현(Ryu, Su-Hyun),금오현(Keum, O-Hyun),김위경(Kim, Wee-Kyung),김윤일(Kim, Yun-Il),배용범(Bae, Young-Bum),박종석(Park, Jong-Seuk) 한국화재소방학회 2008 한국화재소방학회 학술대회 논문집 Vol.2008 No.추계
Fire model shall be verified and validated to reliably predict the consequences of fires within its limitations. This study aims to predict pool fire phenomena with two rooms using CFAST and to compare CFAST simulation results with PRISME experimental data which can be applicable to the fire of nuclear power plant facility. Five different mass loss rate(MLR) are used in the simulation and the simulated results of specific quantities such as temperature, chemical composition are compared to the experimental data. From this study, the CFAST simulation results with the proper MLR show better similarity and trend with pool fire experimental data.
환기가 제한된 세 개 격실에서 Pool Fire에 대한 FDS 검증분석
배용범(Bae, Young-Bum),이상규(Lee, Sang-Kyu),신병수(Shin, Byung-Soo),김남석(Kim, Nam-Seok),금오현(Keum, O-Hyun),박종석(Park, Jong-Seok) 한국화재소방학회 2011 한국화재소방학회 학술대회 논문집 Vol.2011 No.춘계
This study aims to validate predictive capabilities of FDS for the pool fire in three rooms connected to ventilation network. The three rooms in real scale fire test facility are configured to be similar to that of nuclear power plant in size, ventilation condition, construction material, etc. Basically three rooms are confined to the other area except two open doors and two ventilation duct in each room. The real scale fire test was conducted with these conditions and the predictive capabilities of FDS will be validated by comparing FDS simulation results with experimental data from the temperature, heat flux, and concentration point of view. This study concludes that temperature from FDS is about 25 % lower deviation from the experiment, and heat flux from FDS is about 5% deviation.
오리피스 유량계의 입구 속도 분포에 따른 유량 계측 왜곡 특성
신병수(B. S. Shin),김남석(N. S. Kim),이상규(S. K. Lee),배용범,금오현(O. H. Keum) 한국전산유체공학회 2011 한국전산유체공학회 학술대회논문집 Vol.2011 No.5
In this numerical analysis, the distortion of flow measurement by inlet velocity profile of orifice flowmeter was investigated. To validate the numerical method, the convergence was monitored and the grid dependency was also checked. realizable κ-e model was selected and y+ was about 50 in this calculation. the results shows that the pressure at the pressure tab near pipe wall was changed by inclined inlet velocity profile and it leads to distorted a measurement values of flow through the orifice plate from -3.8% to 9%. Therefore, the fully developed inlet flow was required for accurate flow measurement by orifice flowmeter. If not, the orifice plate installed at wrong location should be re-installed or additional actions should be taken.