• Journal of computational fluids engineering
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• v.13 no.4
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• pp.8-12
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• 2008

Heat/smoke detectors are installed in most subway platforms in Korea to detect fire. Subway platform is divided by smoke-control zones for efficient smoke-control. Once the detectors detect heat or smoke, the smoke-control ventilation system in the platform and concourse is activated according to the smoke-control ventilation mode. Smoke-control mode during fires in Korean subway platforms is that the smoke zones operate by exhausting smoke while other zones in the platform and in the concourse which is the upper floor of the platform operate by supplying air or stopping any ventilation. This study is conducted to evaluate performance of passengers' evacuation for various smoke control modes in the subway station. Distribution of smoke and heat due to fire on the platform is analyzed by using Fire Dynamics Simulator(FDS V 4.06) of NIST. Various smoke-control ventilation modes and locations of fire are considered. Evacuation and movement of passengers within the platform is simulated by building EXODUS V.4.0.

• 한국전산유체공학회:학술대회논문집
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• 2008.03b
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• pp.276-279
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• 2008

Heat/smoke detectors are installed in most subway platforms in Korea to detect fire. Subway platform is divided by smoke-control zones for efficient smoke-control. Once the detectors detect heat or smoke, the smoke-control ventilation system in the platform and concourse is activated according to the smoke-control ventilation mode. Smoke-control mode during fires in Korean subway platforms is that the smoke zones operate by exhausting smoke while other zones in the platform and in the concourse which is the upper floor of the platform operate by supplying air or stopping any ventilation. This study is conducted to evaluate performance of passengers' evacuation for various smoke control modes in the subway station. Distribution of smoke and heat due to fire on the platform is analyzed by using Fire Dynamics Simulator(FDS V 4.06) of NIST. Various smoke-control ventilation modes and locations of fire are considered. Evacuation and movement of passengers within the platform is simulated by buildingEXODUS V 4.0.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2008.05a
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• pp.10-16
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• 2008

서울 도심의 인적 운송수단의 중심에 있는 지하철 $1{\sim}8$호선의 차량 객실조명과 지하철 역사 조명을 조사하여 현재의 조명환경을 파악한 후 각 호선별 지하철 차량의 객실 조도와 휘도를 측정하고 지하에 위치한 역사의 조도를 측정하여 분석하였다. 또한 역사의 기준등급을 환승역은 A등급, 일반역은 B 등급으로 적용하여 기준조도를 선정하였으며 현재의 측정 조도와 사용광원을 검토하여 에너지절약 및 지하철의 조명환경개선을 연구함으로써 이용객에게 쾌적하고 안락한 지하철 조명 환경을 만들고자 한다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.04a
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• pp.249-250
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• 2002

입자상 물질은 호흡에 의해 폐 깊숙이 침착되어 인체에 피해를 줄 수 있다 같은 질량의 거대 및 미세 입자가 있을 경우, 입자의 크기가 작아짐에 따라 비표면적이 급속히 커지기 때문에 입자가 유해 중금속 성분을 함유하고 있을 경우 그 중금속의 농축 정도가 크다. 지하철 역사는 사람들이 가장 많이 생활하는 지하 공간중의 하나이며, 유동인구가 많아 입자상 물질의 발생이 심한 지역으로 외기에 비해 희석, 화산 공간이 크지 않기 때문에 역사 내 유해 환경 오염 물질의 영향과 관리 대책에 대한 연구가 진행되고 있다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2001.11a
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• pp.181-182
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• 2001

도시 집중화로 교통난과 토지 과부족 현상이 야기되었으며, 초고층빌딩과 지하공간의 개발이 급속히 진행되고 있다. 또한, 지하공간의 이용률 급등에 따라 지하공기를 포함한 실내공기질에 관한 관심이 높아지고 있다. 기존 연구문헌에 의하면, 현대인의 대부분은 하루 중 80 ∼ 95 %를 다양한 실내 공간에서 생활하고 있으며 (Wiley et al., 1991), 실내오염원이 존재할 경우 실외대기보다 실내공기의 오염도가 극심하다는 연구결과도 있었다 (Hines et al., 1993). (중략)

• Water for future
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• v.41 no.3
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• pp.49-53
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• 2008

• Explosives and Blasting
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• v.15 no.3
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• pp.59-63
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• 1997

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.9 no.9
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• pp.721-736
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• 2019

In this paper, the behavior of the fire smoke due to the operation of the ventilation systems when the fire occurred in the underground station (6 basement floors) and the tunnel at the great depth was measured. Fire smoke was generated by using a smoke generator which realized heat buoyancy effect by using hot air blower. The two locations of the fire were selected on the platform and on the platform of the tunnel located outside the screen door. A ventilation mode is generally used in which smoke is exhausted through a vent hole provided in a platform when a platform fire occurs. The tests were performed by operating the exhaust through the ventilation holes of the tunnel part located at both ends of the platform. The smoke density and the wind speed/velocity were measured at various positions, and the videos were taken to analyze the movement and smoke of the smoke. In both cases for fire inside the platform and in the railway tunnel, due to the ventilation mode operation of the fan for the platform and the exhaust of the fans in the tunnel smoke were well exhausted and the smoke propagation to the area near the smoke zone was suppressed. The smoke-control mode, which is applied to both fans for the platform and fans for in the tunnel at both ends of the platform, can provide a safer evacuation environment to the passengers from the fire smoke when the platform fire or fire train stops.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.05b
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• pp.431-432
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• 2003

급속한 도시화, 인구 과밀화로 인한 교통문제와 생활공간의 확보는 현재 대도시가 직면한 사회적인 문제이다. 이와 같은 대도시의 교통문제를 해결하기 위해 건설된 지하철은 인구의 도시집중으로 인해 발생하는 교통량의 증가를 효과적으로 관리할 수 있는 유일한 운송 수단이다. 이러한 지하철의 이용공간은 밀폐성으로 인해 환기가 용이치 않고, 그로 인한 유해물질의 축적으로 인체에 대한 위해성이 대두되고 있다. 이에 본 연구에서는 지하공간 내 오염물질 중 가스상 오염물질 즉, 휘발성유기화합물질(VOCs)을 측정, 분석함으로써 지하역사내의 쾌적한 환경을 확보하기 위한 효과적인 방안을 정립하는데 일조 하고자 한다. (중략)

• Journal of the Korean Society for Railway
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• v.9 no.3 s.34
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• pp.271-276
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• 2006

Insight into behaviour of pedestrians as welt as tools to assess passenger flow condition is important in such instances as planning and geometric design of railway station under regular and safety-critical circumstances. Algorithm for passenger flow analysis based on DEM (Discrete Element Method) is newly developed. There are lots of similarity between particle-laden two phase flow and passenger flow. The velocity component of 1st phase corresponds to the unit vector of calculation cell, each particle to passenger, volume fraction to population density and the particle velocity to the walking velocity, etc. And, the walking velocity of passenger is also represented by the function of population density. Key algorithms are developed to determine the position of passenger, population density and numbering to each passenger. To verify the effectiveness of new algorithm, passenger flow analysis for the basic models of railway station is conducted.