主被动复合双冷源空调系统的运行特性及其在智算中心的应用
Operational characteristics of active and passive composite dual cold source air conditioning systems and its application to AIDCs
摘要：
阐述了主被动复合双冷源空调系统如何满足智算中心液冷服务器和风冷服务器的供冷需求,在串联模式下,相对并联模式能实现压缩机制冷量最小化,最大限度利用自然冷却供冷。介绍了贵安地区某智算中心实际工程案例,结合贵安地区的气候条件,对系统的整体架构进行了阐述,经测算,该项目年平均PUE值约为1.183 0,实现了低PUE的目标。同时,项目空调系统架构满足“风液同源”的扩容需求,更具有后期需求的灵活性,可供同类型项目建设设计参考。
Abstract：
This paper elaborates on how an active and passive composite dual cold source air conditioning system meets the cooling demands of both liquid-cooled and air-cooled servers in artificial intelligence data center(AIDC). In series mode, compared to parallel mode, it can minimize the refrigeration capacity of compressors and maximize the utilization of natural cooling for cooling. It presents an actual engineering case of an AIDC in Gui’an area. Considering the climatic conditions of Gui’an, the overall architecture of the system is described. After calculation, the project achieves an average annual power usage effectiveness (PUE) value of approximately 1.183 0, realizing the goal of a low PUE. Meanwhile, the air conditioning system architecture of the project meets the expansion requirements of “air-liquid co-source” and offers greater flexibility for future demands, providing a reference for the design and construction of similar projects.
Keywords:artificial intelligence data center (AIDC); air-liquid co-source; active and passive composite dual cold source air conditioning; series mode; parallel mode; power usage effectiveness (PUE)