大型铁路客运站空调负荷特性分析

Analysis on Characteristics of Air Conditioning Load for a Large Scale Railway Station

对于大型铁路客运站来说,人员数以及据此计算的新风负荷是空调负荷的主要影响因素,而在实际运行过程中人员变动较大,同时新风负荷又和室外计算温度有关,这无疑给冷水机组选型及空调节能提出新问题。本文以上海某大型客运站为例,计算并分析了夏季设计日冷负荷,参照现有不同运行阶段使室外计算温度和人员数进行合理变化,分别计算不同水平时的设计日负荷,为大型客运站冷水机组的优化选型提供依据。运用能耗分析软件eQUEST模拟出全年动态空调能耗,并拟合出客流量与空调能耗的关联式。

For the large scale railway station, the number of personnel and cooling load from outdoor air are key factors affecting the air conditioning load, and the latter is calculated based on the former. While in the actual running, the number of personnel fluctuates largely. At the same time, the load from outdoor air is in relation to the calculating outdoor temperature. They are new problems in selection of refrigerating unit and air-conditioning energy saving. With an example of such railway station in Shanghai, calculates and analyses the design day cooling load. Referring to different run phases, varies the calculating outdoor temperature and number of personnel. Next, calculates the design day cooling load of different levels separately, which will provide a basis to optimize the selection of refrigerating unit for large scale railway station. Use energy analysis software eQUEST to simulate the dynamic air-conditioning energy consumption throughout the year and fitting the relational of traffic and air-conditioning energy consumption.