严寒地区数据中心降温节能空调系统探究

The Research on Cooling and Energy-saving Air-conditioning System in Data Exchange Center in Severe Cold Area

随着大数据时代的到来,数据中心建设发展迅速。其特点是散热量大,空调能耗高,人工制冷作为数据中心主要室内降温方式且连续运行,耗电量仅次于IT设备用电,PUE值较高。严寒地区冬季温度≤5℃的天数不足170d,夏季超过30℃的天数不足30d,气候特点鲜明。故可充分利用室外空气温度变化来满足室内环境温度需求,即在数据中心空调制冷系统方案中拟采用全热交换、蒸发冷却和人工制冷系统相结合的模式,以达到节能降耗的目的。

With the arrival of large data era,the construction of data center is developing rapidly.It is characterized by large heat,high energy consumption on air conditioning.Artificial refrigeration as the data center and the main indoor cooling mode to run continuously,the power consumption in it is the second to the power consumption of IT equipment,and the PUE value is higher.The time in cold winter areas with the temperature≤5 ℃is less than 170 days,the duration of annual days with the temperature more than 30℃is less than 30 days and with distinctive climate characteristics.Therefore,the outdoor air temperature changes can be made full use to meet the need of indoor temperature.In the data exchange center of the evaporative cooling air conditioning system,it is to be adopted a total heat exchange,and combined model of evaporative cooling and artificial refrigeration system to achieve energy saving purposes.