Abstract

The phenomena of over-cooling commonly exist in data center thermal environment, resulting in a substantial waste of energy. Previous study has proposed a solution that implementing a wind turbine in a raised-floor data center by which the over-provisioned airflow can be utilized. The impingement of the computer room air-conditioner (CRAC) flow on the plenum walls (e.g., the floor slab) may yield key causes of the energy losses. Therefore, studying the effects of the wind turbine on the CRAC flow in the data center is necessary. Here, the data center and wind turbine were simulated and modeled using Computational Fluid Dynamics (CFD) package. In this research, the numerical measure of the pressure distributed on the floor slab was numerically measured as key observations. The positioning and axial induction factors of the wind turbine were treated as the major research parameters. The consequence illustrates that implementing a wind turbine with well-tuned axial induction factor and operating height might be capable of effectively decreasing the CRAC flow impingement and increasing the turbine power efficiency. This research may provide meaningful references for effective wind turbine applications for data center energy efficiencies.

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