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특수 방호공간에서 가상화재의 발생으로 인한 화재거동에 관한 수치적 연구
김태국,손봉세,Kim, Tae-Kuk,Son, Bong-Sei 한국방재학회 2001 한국방재학회논문집 Vol.1 No.1
본 연구의 목적은 청정실 내부에서 가상의 화재가 발생할 경우 화재 확산 및 연기의 전파 현상을 예측하기 위하여 실시하였다. 청정실 내의 화재로 인한 온도 및 속도분포의 해석은 유한체적법을 이용한 수치적 방법으로 해석하였으며 난류유동장의 계산은 표준 $k-{\varepsilon}$ 모델을 적용하여 실시하였다. 본 연구 결과는 화재발생 후 150초가 지난 후에는 화재가 완전히 성장한 것으로 나타났으며 이 경우 환기장치는 화재가 완전히 성장한 후에 정지하는 것으로 가정하였다. 연기의 질량분율은 온도 분포와 거의 유사한 것으로 나타났다. 따라서 청정실에서 화재가 발생할 경우 화재 성장이 60초 내에 전공간의 $20{\sim}30%$까지 확산되므로 내부에 있는 사람은 30초 이내에 대피하는 것이 바람직하다. The objective of the present study is to predict the characteristics of the fire and smoke propagations in a clean room. Numerical calculations have been performed by using the finite volume method to obtain temperature and velocity distributions in the clean room. In odor to account for the turbulent flow characteristics, the standard $k-{\varepsilon}$ model is used. From this study, it was found that the fire propagation could be fully developed only after 150 seconds when the ventilation system in the clean room was off. And the smoke mass fraction showed a similar distribution as the gas temperature. Since the simulated fire was proceeded up to $20{\sim}30%$ of the room within 60 seconds. it could be recommended that the occupants should be evacuated from the room within 30 seconds.
탁성인(Sung-In Thak),손봉세(Bong-Sei Son),임동오(Dong-Oh Lim),오천영(Cheon-Young Oh) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.6
This study presents an analysis on digital hydraulic switching in pump system. A system of digital hydraulic switching is useful method for high-rise building in modern architecture based on high-tech industry and advances in technology. In addition, it"s golden time to move ahead with internet of things based on System on the Chip, RFID and Ubiquitous Sensor Network. This study proposed a new system type called Digital Hydraulic Switching, using Inteligence and Data mining method. This study investigated monitoring system that being introduced on a ubiquitous environment about maintenance and management of this high-rise building using a variety of sensors. Finally, this study presented basic model of total plat form based on Monitoring that can make automatic extraction for standard operating procedure with General manager"s decision-making and manual.
최재현(Jae hyun Choi),손봉세(Bong Sei Son) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6
This study examines the ventilation system again to minimize the casualties, and it should review the information about the ventilation, the design method considering the fire safety standards and performance first, the various thinking and sufficient time, To measure the time and speed of removing smoke from the compartments and to ascertain how much it would affect the evacuation.
사물인터넷을 활용한 흔들림 방지 버팀대의 내진설계에 관한 연구
탁성인(Sung-In Thak),손봉세(Bong-Sei Son),임동오(Dong-Oh Lim),오천영(Cheon-Young Oh) 대한설비공학회 2017 대한설비공학회 학술발표대회논문집 Vol.2017 No.6
There is a growing need for seismic resistance design. But it is controversial that standards of sway brace device in non-structural elements for buildings like pump waterway is vary widely. Therefore, in this study to get a valid range of sway brace device in seismic resistance design, using load test of sway brace device. As a result, load of safe range from 0 to 18.5kN and under 29.4kN, no structural fault of sway brace device. And using internet of things get a data of seismic resistance design from sensor node like accelerometer, GPS, tilt sensor and temperature sensor through steps of sampling and prediction. These results will be acceptable for monitoring system for seismic resistance in non-structural elements.
지하주차장의 층고 변화에 따른 연기제어 특성에 관한 연구
오천영(Cheon Young Oh),손봉세(Bong Sei Son) 대한설비공학회 2018 설비공학 논문집 Vol.30 No.10
The purpose of this study was to analyze smoke temperature and visibility characteristics of an underground parking lot in case of fire by simulation. There were temperature changes of Case 1 (7.77℃), Case 3 (4.66℃). There was a change in the visibility of Case 1 (5.21 m), Case 3 (28.91 m), As revealed in results of Case. There was a difference in temperature and visibility at the height of the clean layer (H : 2.0 m). A system based an organic complement of passive and active systems will facilitate maintaining an efficient system. There were many variations in the floor height of underground parking lot and temperature and visibility depending on smoke ventilation system operation.
주세영(Ju Se Young),손봉세(Son Bong Sei) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6
이번 논문에서는 초고층 건물이 많아지고 있는 시점에서 피난시간 확보와 소화활동을 위해 필요한 제연설비의 성능에 위험을 주는 요소가 무엇인지 연구하였고, 그 중심에는 제연댐퍼의 성능에는 어떤 것이 있으며, 각 성능에 따른 문제점과 개선방안을 제시하였다.