论文部分内容阅读
利用最小耗散理论和匹配换热原则对数据中心的传热机理进行了分析,在此基础上提出了一种分布式冷却系统。该系统利用内置多级热管的内冷型机柜消除室内冷热气流混合,实现了室内温湿度均匀分布。同时,由于取消了冷热气流通道,提高了室内空间利用率,可以容纳更多的机柜。室外采用多级冷水机组串联的环路冷水系统,根据室外环境温度的变化调整机组运行台数,动态分配负荷,提高机组能效比。通过在冷水环路中串联1台冷却塔,利用室外空气的冷却能力缩短冷水机组运行时间,进一步降低运行能耗。工程改造实例表明,该综合冷却系统可以有效改善数据中心室内热环境,且节能率超过40%。
The heat transfer mechanism of data center is analyzed by using the principle of minimum dissipation and matching heat exchange. Based on this, a distributed cooling system is proposed. The system uses built-in multi-level heat pipe cooling cabinet to eliminate indoor mixed hot and cold air flow to achieve a uniform indoor temperature and humidity distribution. At the same time, due to the elimination of the hot and cold air channels, improve the utilization of interior space, can accommodate more cabinets. Outdoor use of multi-stage chiller chiller series of cold water system, according to changes in outdoor temperature to adjust the unit number of units, dynamic load distribution and improve unit energy efficiency. By connecting a cooling tower in series in the cold water loop, the cooling capacity of the outdoor air can shorten the operation time of the chiller and further reduce the operating energy consumption. The engineering examples show that the integrated cooling system can effectively improve the indoor thermal environment in the data center with the energy saving rate over 40%.