新风直接冷却系统在数据中心的运行效果与耗水特性

Operation effects and water consumption characteristics of fresh air direct cooling system in data center

基于新风直接冷却系统的原理和运行模式,建立其数学模型,并结合气象数据,分析新风直接冷却系统应用于典型城市数据中心的运行效果和耗水特性。研究结果表明:新风直接冷却系统在乌兰察布、北京、上海、贵阳、广州数据中心的全年自然供冷率依次降低,全年耗水量依次降低;新风直接冷却系统在空气湿度大的地区的适用性和节能性较差,新风在各地数据中心的耗水量趋势均是冬季耗水量高,夏季耗水量低;逐时耗水量波动较大,乌兰察布和北京的数据中心的峰值WUE(水利用效率)较高。

Based on the principle and operation mode of the fresh air direct cooling system,the mathematics model is established. With the meteorological data,the operation effects and water consumption characteristics of the fresh air direct cooling system applied to the data centers in typical cities are analyzed. The study results show that the annual natural cooling rate and annual water consumption of the fresh air direct cooling system in the data centers of Ulanqab,Beijing,Shanghai,Guiyang and Guangzhou decreases in turn. The applicability and energy-saving of the fresh air direct cooling system in areas with high air humidity are poor. The water consumption trends in all places are all high in winter and low in summer. The hourly water consumption waves in much big range,and the peak values of WUE in Ulanqab and Beijing are much higher.