基于制冷季逐时能耗模拟的地铁车站冷源方案分析方法
Analysis method of cold source scheme of subway station based on hourly energy consumption simulation of cooling season
摘要：
提出了一种综合室外典型年逐时气象参数、列车发车对数、客流量变化等因素,在制冷季逐时负荷基础上进行能耗模拟的冷源方案分析思路。首先建模计算得到地铁车站制冷季逐时空调负荷,然后基于逐时室外气象条件修正冷水机组的实际性能。以某地铁车站公共区为例,对水冷螺杆式冷水机组和水冷涡旋式模块化冷水机组2种空调冷源方案进行了对比。结果显示,虽然水冷螺杆式冷水机组的额定COP高于水冷涡旋式模块化冷水机组,但针对该地铁车站的负荷特点,采用水冷涡旋式模块化冷水机组方案制冷站年能耗比采用水冷螺杆式冷水机组方案低11.6%。
Abstract：
This paper puts forward a cold source scheme analysis idea that takes into account the outdoor hourly meteorological parameters of the typical year, the number of train departure pairs, the passenger flow changes and other factors, and simulates the energy consumption based on the hourly load in the cooling season. Firstly, the hourly air conditioning load of the subway station in the cooling season is obtained by modeling and calculation, and then the actual performance of the chiller is modified based on the hourly outdoor meteorological conditions. Taking the public area of a subway station as an example, two kinds of air conditioning cold source schemes of water-cooled screw chillers and water-cooled scroll modular chillers are compared. The results show that although the rated COP of water-cooled screw chillers is higher than that of water-cooled scroll modular chillers, according to the load characteristics of the subway station, the annual energy consumption of the refrigeration station with water-cooled scroll modular chillers is 11.6% lower than that of water-cooled screw chillers.
Keywords:subway station; energy consumption simulation; air conditioning cold source; air infiltration; meteorological parameter; departure pair number; screw chiller; scroll chiller