数据中心湖水源自然冷却系统现场性能测试分析
On-site performance test analysis of free cooling system with lake water in data centers
摘要：
为解决数据中心冷却系统能耗高、能源利用效率低的问题，自然冷却技术得到了广泛应用。以东江湖数据中心湖水源自然冷却系统为测试对象，详细测试了系统的实际运行性能，并讨论了其节能性，旨在为数据中心自然冷却系统运行设计提供实际数据支撑。测试结果表明：湖水源自然冷却系统的综合性能系数高达11，相比国家政策要求（新建大型数据中心PUE≤1.3），其能耗可进一步降低16%；此外，末端精密空调能耗占自然冷却系统总能耗50%以上，是自然冷却进一步降低能耗的关键。
Abstract：
In order to alleviate the problems of high energy consumption and low energy efficiency in data centers, the free cooling technology has received widespread attention. This paper takes the free cooling system with lake water free cooling in Dongjiang Lake data center as a testing object, and aims to provide the actual data for the design of the free cooling system in data center. The actual operating performance of this system is tested and discussed in terms of energy consumption. The testing results show that the global coefficient of performance of the cooling system is 11. Compared with the national requirements for data centers of China (e.g., new large data center PUE≤1.3), the energy consumption can be decreased by 16% further. Additionally, the energy consumption of terminal computer room air handler accounts for more than 50% of the total energy consumption of the free cooling system, which is the key to further reducing energy consumption by free cooling.
Keywords:datacenter;lakewaterfreecooling;on-sitetesting;energysaving;globalcoefficientofperformance