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대심도 지하역사에서의 화재시 플랫폼 스크린 도어에 의한 열, 연기 거동 영향 분석
장용준(Y. J. Jang),김학범(H. B. Kim),이창현(C. H. Lee),정우성(W. S. Jung) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
In this study, fire simulations were performed to analyze the characteristics of the fire driven flow and the effects of the platform screen door on the smoke flow in the station, when the fire occurred in the center of the platform. Soongsil Univ. station (line number 7, 47m in depth underground) was chosen which was the one of the deepest underground subway stations in the Seoul metro, SMRT. The parallel computational method was employed to compute the heat and mass transfer eqn's with 6 CPUs of the linux clustering machine. The fire driven flow was simulated with using FDS code in which LES method was applied. The Heat release rate was 10㎿ and The Ultrafast model was applied for the growing model of the fire source. The 10,000,000 structured grids were used
이창현(C. H. Lee),김학범(H. B. Kim),장용준(Y. J. Jang),정우성(W. S. Jung) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
Conducting of Reduced Scale Tunnel-Fire Experiments are not easy due to risk for fire in door. In the study, Tunnel fire were simulated by applying buoyancy of helium-air mixture to the reduced scale tunnel experiment for safety. Helium-air mixture. Velocity vectors were measured with PIV at the near fire position
장용준(Y. J. Jang),김학범(H. B. Kim),이창현(C. H. Lee),정우성(W. S. Jung) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
In the studying The comparative analysis was performed using numerical simulation for various smoke exhaust and control system against fire in the deeply underground subway station. When the fire occurred in the platform of deeply underground subway station, the evacuation way to exit is long and by way of the concourse. Therefore, the toxic gas inflows should be prevented and delayed to concourse from fire to save passengers' life. In the paper The numerical analyses for various operating in connection with smoke exhaust/control systems of concourse and platform were showed for preventing smoke-inflow into the evacuation way from the fire in the platform of deeply underground subway station.
병렬(슈퍼) 컴퓨터를 이용한 대심도 지하역사 화재 유동 해석
장용준(Y. J. Jang),김학범(H. B. Kim),이창현(C. H. Lee),정우성(W. S. Jung) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
Tunnel Wind is occurred by various causes of gradients of railway, locally different temperature and car moving in the subway. In this study, transient numerical-simulations were performed to analyze the effects of the platform screen door and tunnel wind on the fire driven smoke and heat flow in the station, when the fire occurred in the center of the platform. Soongsil Univ. station (line number 7, 47m in depth underground) was chosen which was the one of the deepest underground subway stations in the Seoul metros. The 16 cores of linux clustering-computer were employed for fast calculation of 10,000,000 structured-grids. The fire driven flow was simulated with FDS code in which LES method was applied. The Heat release rate was 10㎿ and The Ultrafast model was applied for the growing model of the fire source.
김학범(H. B. Kim),김치훈(C. H. KIM),이덕희(D. H. Lee),장용준(Y. J. Jang),정우성(W. S. Jung),김진곤(J. K. Kim) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
철도 승강장의 매점은 현재 신문판매대, 표준 간이매점, 간이매점(복권방)등의 형태로 운영되고 있다. 따라서 신문이나 잡지등은 쉽게 불에 붙기 때문에 화재의 발화원이 되며, 대구 지하철 화재사고와 마찬가지로 방화의 대상이 될 수 있다. 이에 본 연구에서는 실규모의 매점 화재 실험을 통하여 열방출율과 독성을 측정 분석하고 이에 대한 승강장 매점의 화재방재 요건을 마련코자 한다. Recently, a lot of newsstands and mini station-store are operated as a store at the platform of subway. But the papers and magazines which are main articles for sale could be as the source of fire ignitable because those kind of easy flammable. Therefore the newsstands could be the target for fire. In this paper, fire experiments were conducted to find out characteristics and to plan the fire-safety for Newsstands and Mini station-stores fire
대심도 지하역사에서 화원 위치에 따른 연기거동 특징 연구
김학범(H.B. Kim),장용준(Y.J. Jang),이창현(C.H. Lee),정우성(W.S. Jung) 한국전산유체공학회 2009 한국전산유체공학회 학술대회논문집 Vol.2009 No.4
In this study, Numerical simulations were pelf armed 10 analyze the characteristics of fire driven smoke flow for different location of fire source in the deeply underground subway station with using FDS code. The fire driven smoke-flow which was simulated by using Parallel Computational Method for fast calculation and LES for turbulence model. In this research, the fire location to obstruct a suitable egress from the fire disaster were discussed.