数据中心在消耗大量能源的同时，对水资源的消耗也不容忽视。风侧经济器作为数据中心有效的节能技术，受到了室外空气污染物的制约。基于某数据中心实际的能耗、水耗及空调测试数据，结合室内环境要求与该数据中心室外空气污染物条件，探讨了应用风侧经济器的可行性并分析了其能耗与耗水量的计算方法，最后将计算结果与水侧经济器实际应用情况进行了对比。结果表明：该数据中心机械制冷工况下电能使用效率（PUE）为1.56，暖通空调负载系数（MLC）为0.43，在水侧经济器完全自然冷却工况下节能量明显，PUE为1.40，MLC为0.25。对比于应用水侧经济器时期，应用风侧经济器的PUE为1.27，MLC为0.13，日均耗水量约为冷却塔耗水量的30 %，水利用效率（WUE）为1.01，节能和节水潜力远高于水侧经济器。另外，随着规范对于数据机房环境的湿度下限要求的降低，风侧经济器的节水性能会得到进一步的提升。这为后续研究风水经济器结合系统，并提出“风侧优先，水侧补充”的思想提供了依据。

While data centers consume a lot of energy, the consumption of water resources cannot be ignored. Air-side economizer, an effective energy-saving technology for data centers, is constrained by outdoor air pollutants. Based on the actual energy consumption, water consumption and air conditioning test data of a data center, taking into account the indoor environmental requirements and the outdoor air pollutant conditions of the data center, the feasibility of applying the air-side economizer was discussed and its calculation method of energy and water consumption was analyzed, and the calculation results were compared with the actual application of the water-side economizer. The results show: The data center has a Power Usage Effectiveness (PUE) of 1.56 and a Mechanical Load Component (MLC) of 0.43 under mechanical cooling and significant energy savings under full free cooling in the water-side economizer, with a PUE of 1.40 and MLC of 0.25. Compared with the period of applying water-side economizer, the PUE of applying air-side economizer is 1.27, MLC is 0.13, the average daily water consumption is about 30% of the cooling tower water consumption, and the Water Use Efficiency (WUE) is 1.01, so the energy and water saving potential is much higher than that of water-side economizer. In addition, the water-saving performance of the air-side economizer will be further improved as the specification requirements for the lower limit of humidity in the data room environment are reduced. This provides a basis for subsequent research on the combination of air-side and water-side economizers , as well as for proposing the idea of " air-side prioritization, water-side supplementation".

TU831 ???????????

国家自然科学基金(51778080)资助项目,重庆市技术创新与应用发展项目(cstc2020jscx-msxmX0184)