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| Analysis of the Barrier Efficiency of Air Curtain System on the Outer Doors of Railway Station |
| TIAN Li-wei |
| China Railway Siyuan Survey and Design Group Co. Ltd, Wuhan, Hubei 430063, China |
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Abstract Abstract：Research purposes： This paper focuses on the railway station, by using CFD numerical simulation method, the model of air curtain systems of outer doors is established and the value changes of unorganized infiltrated air volume is simulated. The air speed, jet thickness and jet angle of air curtain, as well as the pressure difference of indoor and outdoor in winter/summer, are taken into consideration. The purpose of this study is to reduce the energy loss caused by outer doors on the basis of ensuring passenger traffic and evacuation unobstructed.
Research conclusions：(1) The highest barrier efficiency of air curtain system in winter and summer are 27.65% and 25.13%, respectively. (2) The height of outer door should be reduced as far as possible based on the needs of permission. (3) The technical parameters of air curtain should be more than 6 000 m3 /h in volume, 14 m/s in speed and flow direction can be adjusted. (4)This research conclusions provide theoretical basis and data support for air curtain system design of railway station, also improve the energy efficiency caused by unorganized air infiltration.
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［1］郭占月. 铁路房屋建筑节能技术研究［J］. 铁道工程学报，2011(12):104-107.
Guo Zhanyue. Research on Energy-saving Technology of Railway Building Architecture［J］. Journal of Railway Engineering Society, 2011(12):104-107.
［2］朱建章，黄保民,孙兆军，等. 铁路建筑暖通空调设计综述［J］. 暖通空调，2010(5):1-8.
Zhu Jianzhang, Huang Baomin, Sun Zhaojun,etc. Review of HVAC System Design of Railway Buildings［J］. HV &AC,2010(5):1-8.
［3］刘加根，朱颖心,章宇峰，等. 南京南火车站渗透风模拟及实测验证研究［J］. 动感(生态城市与绿色建筑）,2012(2):107-111.
Liu Jiagen, Zhu Yingxin, Zhang Yufeng,etc. Study on Infiltration Simulation and Experimental Validation in Nanjing South Railway Station［J］. Eco-city and Green Building, 2012(2):107-111.
［4］GB 50176—1993,民用建筑热工设计规范［S］.
GB 50176—1993,Thermal Design Code for Civil Building［S］.
［5］刘燕，邓光蔚，彭琛，等. 铁路客站无组织渗风现状调研及数值模拟研究［J］. 暖通空调，2012(12):53-59.
Liu Yan, Deng Guangwei, Peng Chen,etc. Current Situation Investigation and Numerical Simulation Study of Natural Air Infiltration in Railway Stations［J］. HV&AC, 2012(12):53-59. |
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