基于露点间接蒸发冷却塔的数据中心冷却系统的应用分析

Application Analysis of Data Centre Cooling Systems Based on Dewpoint Indirect Evaporative Cooling Towers

“双碳”背景下,蒸发冷却技术已经成为降低数据中心能耗,满足数据中心PUE指标的一种重要手段,对数据中心冷却系统的优化将对该领域节能降碳做出重要贡献。介绍了数据中心间接蒸发冷却预冷一体化架构冷却系统。系统应用露点型间接蒸发冷却塔,补充了传统冷却塔的短板,实现了出水温度低于湿球温度,大幅度提高全年自然冷源利用时间;还采用下送风列间空调,将末端二次泵内置至末端空调内部,降低了一次泵的功耗,实现末端和冷源侧的个性化负荷控制;封闭冷热通道的气流组织可最大限度地提高机房空调系统的利用率,使系统有着高效的降温效果。同时结合实际应用案例,通过实测得出全年综合性能系数(GCOPA)达6.64,电能利用效率(PUE)低至1.23和水资源利用效率(WUE)为1.39来评价和验证该系统的节能效果。结果表明,该系统在推动数据中心蒸发冷却技术发展的同时,还为整个数据中心的节能减排做出贡献,在数据中心领域有着巨大的应用前景。

Under the background of"double carbon",evaporative cooling technology has become an important means to reduce the energy consumption of the data centre and meet the PUE index of the data centre,and the optimization of the cooling system of the data centre will make an important contribution to energy saving and carbon reduction in this field.This paper describes the data centre indirect evaporative cooling pre-cooling integrated architecture cooling system.The system applies dew-point type indirect evaporative cooling tower,which supplements the short board of the traditional cooling tower and achieves a water outlet temperature lower than the wet bulb temperature,significantly increasing the utilization time of the natural cooling source throughout the year;it also adopts the downward-feeding column-to-column air conditioning,and builds the end-end secondary pump into the inside of the end-end air conditioning,which reduces the power consumption of the primary pump and achieves the personalized load control on the side of the end end-end and the cooling source;and the airflow organization of the closed hot and cold channels can maximally improve the The airflow organisation of the closed hot and cold channels can maximise the utilisation rate of the air conditioning system in the server room and make the system have a highly efficient cooling effect.At the same time combined with the actual application cases,through the measurement of the annual comprehensive energy coefficient(GCOPA)of 6.64,power utilization efficiency(PUE)can be as low as 1.23 and water utilization efficiency(WUE)of 1.39 to evaluate and verify the energy saving effect of the system,the results show that the system promotes the development of evaporative cooling technology in the data centre,while also contributing to the energy saving and emission reduction for the whole data centre,and has a good reputation in the field of data centre.The results show that the system contributes to the development of data centre evaporative cooling technology,while also contributing to the energy saving and emission reduction of the whole data centre,and has great application prospects in the field of data centre.