This study provides the first known conservative estimates of reductions in carbon and water scarcity footprints when employing economization technologies in chilled water-based data centers (DCs) in the U.S. Specifically, a generic DC that employs a Computer Room Air Handling (CRAH)-based cooling system with a total IT load of 400 kW is computationally modeled at 925 locations in the U.S. with airside and/or water-side economization. The energy savings and environmental benefits are presented in terms of key DC performance metric reductions, including Carbon Usage Effectiveness (CUE) and Water Scarcity Usage Effectiveness (WSUE). The results suggest that implementing both water-side and airside economization schemes under conditions within the ASHRAE A1 Allowable envelope reduces the mean state-averaged PUE, WUE, CUE, and WSUE by 11%, 22%, 11%, and 15%, respectively. These results highlight the environmental benefits of economization technologies and provide guidance on economization strategies.

这项研究提供了第一个已知的保守估计，即在美国基于冷冻水的数据中心 (DC) 中采用节约技术时，碳足迹和水资源短缺足迹的减少量。总 IT 负载为 400 kW 的冷却系统在美国的 925 个位置进行了计算建模，具有空气侧和/或水侧节约。节能和环境效益以关键数据中心性能指标减少的形式呈现，包括碳利用效率 (CUE) 和缺水利用效率 (WSUE)。结果表明，在 ASHRAE A1 允许范围内的条件下实施水侧和空气侧节能方案可将平均状态平均 PUE、WUE、CUE 和 WSUE 降低 11%、22%、11%，和 15%，分别。这些结果突出了经济化技术的环境效益，并为经济化战略提供了指导。