不同气候区数据中心用间接蒸发冷却空调的耗能分析

Energy consumption analysis of indirect evaporative cooling air conditioning for data centers in different climate zones

为分析数据中心用间接蒸发冷却空调在我国各气候区的能耗情况,选取了5个气候区中11个城市分析单台间接蒸发冷却空调机组的年耗电量、年耗水量及年运行费用。研究结果表明:室外气候越干燥,间接蒸发冷却空调干模式运行时间越长;温和地区间接蒸发冷却空调的应用存在较大的节能潜力;高温高湿地区机组的年运行费用明显高于其他地区;与年运行电费相比,年运行水费占比很小。因此,进行数据中心空调设计时,应着重考虑空调系统的耗电量,以便减少能耗,降低电能利用效率(PUE)。

In order to analyse the energy consumption of indirect evaporative cooling air conditioning for data centers in different climate zones in China,eleven cities in five climate zones are selected to analyse the annual power consumption,water consumption and operating costs of a single indirect evaporative cooling air conditioning unit.The results show that the drier the outdoor climate is,the longer the dry mode operation time of indirect evaporative cooling air conditioning is.The application of indirect evaporative cooling air conditioning to temperate zones has high energy saving potential.The annual operating cost of units in high temperature and humidity area is obviously higher than that in other areas.Compared with the annual operating electricity cost,the proportion of annual operating water cost is very small.So when designing air conditioning for data centers,the power consumption of air conditioning system should be considered to save energy and reduce the power utilization efficiency(PUE).