数据中心热管理创新:泵驱两相双循环散热技术应用与解析
Thermal management innovation in data centers: Application and analysis of pump-driven two-phase dual-loop cooling technology
摘要：
提出了一种将泵驱两相芯片级冷板式液冷与机柜级背板式液冷相结合的技术方案,并介绍了示范应用案例。在该示范案例中,此技术方案一、二次侧均采用全氟化合物作为冷却工质,从而有效避免了水进入机房可能引发的风险及水冷系统维护的复杂性。对于泵驱两相芯片级冷板式液冷循环,室外散热部分采用干冷器,避免了冷却塔的使用。测试结果表明,在室外环境温度达到30 ℃的条件下,该系统的瞬时部分电能利用效率(pPUE)仍能维持在1.25以下。此项创新技术的成功部署,为绿色数据中心的热管理开辟了全新路径,可为实现数据中心的低碳化与高效化运行提供技术支撑。
Abstract：
This paper proposes a technical solution that combines pump-driven two-phase chip-level cold plate liquid cooling with cabinet-level backplane liquid cooling, and presents a demonstration application case. In this demonstration case, perfluorinated compounds are used as the cooling working fluids on both the primary and secondary sides in the technical solution, effectively avoiding the risks associated with water entering the equipment room and the complexity of water-cooling system maintenance. For the pump-driven two-phase chip-level cold plate liquid cooling cycle, a dry cooler is employed for outdoor cooling, eliminating the need for a cooling tower. The test results indicate that even when the outdoor ambient temperature reaches 30 ℃, the partial power usage effectiveness (pPUE) of the system can still be maintained below 1.25. The successful deployment of this innovative technology opens up a brand-new path for thermal management in green data centers and provides technical support for achieving low-carbon and efficient operation of data centers.
Keywords:data center thermal management; pump-driven two-phase liquid cooling technology; partial power usage effectiveness(pPUE); dry cooler cooling system; demonstration application case