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권순박(Kwon Soon-Bark),조영민(Cho Youngmin),박덕신(Park Duck-Shin),김세영(Kim Se-Young),박재형(Park Jaehyung),조관현(Cho Goan-Hyun),유건종(Yoo Gun-Jong),김정수(Kim Jung-Su) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Management of indoor air quality of underground subway station is an important issue since the limited natural ventilation, limited sunshine incoming, and highly moistured atmosphere. The improvement in IAQ of platform is expected because most stations were installed with platform screen door currently, however, the poor air quality in tunnel might be affecting subway cabin indoor. In this study, we developed the air quality assessment model based on computational fluid dynamics. The geometry of air ventilation unit, seat, LCD monitors, and passengers were modeled using commercial software (Design Modeler) and fluid pattern and pollutants trajectories were analyzed by using CFX. We predicted the thermal comfort by predicted mean vote (PMV), distribution of CO2 and PM10 concentration. It is expected that this model can be used for the performance test of air cleaners which are under development.
도시철도 객실 공기정화장치(SCAP)의 운행차량 효율평가
권순박(Soon-Bark Kwon),박덕신(Duck-Shin Park),조영민(Youngmin Cho),김종범(Jong-Bum Kim),조관현(Goan-hyun Cho),남궁석(Goongseok Nam),이주열(Jooyeol Lee),김태성(Taesung Kim) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
In the modern society various types of transportation mode are utilized among them the subway system is the one of the main transportation mode which more than 7.21 million people ride a day. Because of interests on the indoor air quality (IAQ) of underground public facilities concerns on IAQ of subway system by many people are increasing. There are several approach to improve IAQ of subway station such as installing platform screen door (PSD) frequent tunnel washing-out and etc however there has not been any attempt to improve IAQ of subway cabin inside. Most technologies for removing airborne particulate matters are known to be difficult to adopt on the subway cabin since the problem of maintenance cost. Therefore the ultimate object of this study is a practical development of cabin air cleaning system which can reduce the concentration of airborne particles and harmful gases at the same time. The subway cabin air purifier (SCAP) was developed for removing particulate matters and gases pollutants inside a cabin. The whole system was designed and the roll-filter device was manufactured based on numerical prediction results. It is expected that SCAP could reduce indoor air pollutants in the subway cabin practically and it can be applied to other part of transportation vehicles.
권순박(Soon-Bark Kwon),박덕신(Duck-Shin Park),조영민(Youngmin Cho),김종범(Jong-Bum Kim),조관현(Goan-hyun Cho),남궁석(Goongseok Nam),이주열(Jooyeol Lee),김태성(Taesung Kim) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
More than 7 million persons use Seoul Metropolitan Subways (SMS) everyday and the number has been in increasing trend. With the increasing trend of concerns on indoor air quality(IAQ), the management of IAQ has become an important issue, especially in case of subway operators, because most of subway lines are placed underground with poor ventilation condition. The ultimate object of study develop independent cleaning device that reduce efficient fine particle and CO2. Urban subway has characteristics about proper clean air flow, must be installed in narrow space and maintenance cycle has enough time. Two layered electrically pre-charged filters were used for removing particulate matters and gas absorbers are packed between two layer filters for removing gases pollutants such CO₂, VOCs and HCHO. Urban subway has characteristics about proper clean air flow, must be installed in narrow space and maintenance cycle has enough time. SCAP prototype is producted as all in one method which decrease fine dust, CO₂ and noxious gas. and basic test carry out with quantity of wind, a gap of pressure, sampling efficiency.