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지하철 터널 내 운행 중 객차에서 화재발생시 제연풍량에 따른 열 및 연기 확산 예측 연구
장희철,윤경범,박리진,김태국,박원희,김동현,Chang. Hee-Chul,Yoon. Kyung-Beom,Park. Lee-Jin,Kim. Tae-Kuk,Park. Won-Hee,Kim. Dong-Hyeon 한국방재학회 2007 한국방재학회 학술발표대회논문집 Vol.2007 No.1
The purpose of this research is focussed on the numerical predictions of the heat and smoke propagations for a passenger train fire in an underground subway tunnel for different air supply and extraction flowrates. The analysis is performed for one of the stations on subway line #5 in Seoul under the emergency operation mode for different air supply and extraction flowrates. Five different the air supply and extraction flowrates are considered for the numerical analyses. The numerical results show that the air supply and extraction flowrates affect the smoke control performance significantly by improving the smoke removal performance for the balanced control of air supply and smoke extraction and for the unbalanced control with lager smoke extraction than air supply.
장희철(Hee Chul Chang),박원희(Won Hee Park),이덕희(Duck Hee Lee),정우성(Woo Sung Jung),김태국(Tae Kuk Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
The purpose of this study is the development of one dimensional pyrolysis model calculation program for the presumption of material fire properties. Recently, needs for the CFD(Computational Fluid Dynamics) code-based fire analysis are increased and the material properties for the pyrolysis modeling are required for reliable simulation results. Fire model input parameters required to material properties must be confirmed prior to the practical simulation procedures but we have a limited reference library to extract the required material properties. Solution for these problems requires an optimization process for estimating the material, which properties are needed for CFD based fire modeling, from results of one-dimensional pyrolysis with cone calorimeter test data. In this paper, are develop a computer program to determine the material properties related to the one-dimensional pyrolysis, and the results are verified by applying for various inflammable materials.
단보 : 디푸루칸 캡슐 50 mg (3캡슐, 플루코나졸 150 mg)에 대한 푸루나졸 정 150 mg의 생물학적 동등성
장희철 ( Hee Chul Chang ),이민석 ( Min Suk Lee ),유정현 ( Chong Hyon Ryu ),류승효 ( Seung Hyo Lyu ),조상헌 ( Sang Heon Cho ),최연진 ( Yeon Jin Choi ),황애경 ( Ae Kyung Hwang ),김윤아 ( Yun Ah Kim ),박시현 ( Si Hyun Park ),윤지원 ( 韓國藥劑學會 2009 Journal of Pharmaceutical Investigation Vol.39 No.3
지하철역사 화재시 주변온도 및 기류의 영향에 대한 수치적 연구
장희철(Chang Hee-Chul),윤경범(Yoon Kyung Beom),김태국(Kim Tae-Kuk),박원희(Park Won-Hee),김동현(Kim Dong-Hyeon) 한국유체기계학회 2006 유체기계 연구개발 발표회 논문집 Vol.- No.-
In this study effects of the environmental temperature and air flow are studied numerically to examine the fire characteristics on the platform of a bank type underground subway station. Two different air flow velocities through the tunnel and four different environmental temperatures are considered in the numerical simulations. Distributions of heat, smoke and visible range are compared at a height of 1.5m meters above the platform. The numerical results show that the environmental air temperature causes to increase the densities of the heat and smoke with a significant decrease in the visibility. The numerical result also show that air flow causes a rapid spread of the heat and smoke over the platform into the air flow direction.