夏热冬冷地区集成闭式系统地铁站空调系统用能分析
Analysis of air conditioning energy consumption in subway stations with closed integrated systems in hot summer and cold winter zone
摘要：
集成闭式系统是目前地铁车站通风空调系统中较为常见的制式，具有系统形式简单、土建投资较低的优势，但其能耗较屏蔽门系统车站偏高。本文对夏热冬冷地区某城市采用集成闭式系统的一条线路的23座车站进行了调研，给出了当前通风空调系统的能耗水平。选择能耗具有代表性的集成闭式系统车站，在空调季典型日开展了详细调研和现场测试，采集的数据包括无组织渗风量、机械新风量、冷水机组运行参数、分项能耗等。以实际测试数据为依托，分析了集成闭式系统车站冷负荷和能耗偏高的原因，计算了车站优化运行后的节能潜力。结果显示，通过减小空调季机械新风量、提高设备能效等措施，典型日通风空调能耗可降低约31%。研究成果可为集成闭式系统车站的用能水平和节能潜力分析提供数据支持。
Abstract：
The closed integrated system is a commonly-adopted form in the ventilation and air conditioning (VAC) system of subway stations, with the advantages of simple system form and low construction investment. However, the energy consumption is higher than that of the platform screened door system. This study investigates the VAC energy data of 23 subway stations with closed integrated systems in a city in the hot summer and cold winter zone, according to which the energy use level is given. Then the representative stations with medium energy consumption level are selected as the research objects, and energy-related data of the VAC system on typical days of the air conditioning season are researched and tested in detail, including unorganized air infiltration volume, mechanical outdoor air volume, operating parameters of chillers, sub-system energy consumption, etc. Based on the actual data, the reasons for the relatively high cooling load and energy use of stations with closed integrated systems are analysed, and the energy saving potential is calculated. The results show that the VAC energy consumption of a typical summer day can be reduced by approximately 31% via reducing the mechanical outdoor air volume and improving the energy efficiency. The research results can provide data support for the energy consumption level and energy-saving potential of subway stations with closed integrated systems.
Keywords:subwaystation;closedintegratedsystem;airconditioningenergyconsumption;hotsummerandcoldwinterzone;energyconservation