地板送风方式对数据中心热环境性能的影响分析
Influence of underfloor air distribution modes on thermal environment performance of data center
摘要：
采用计算流体动力学（CFD）方法分别对地板下送风冷热通道不封闭（C/HAOS）、地板下送风热通道封闭（HACS）、机架下送风（CURS）和地板下送风冷通道封闭（CACS）4种典型的数据中心地板送风方式的气流流线、温度场等进行了数值模拟，根据ASHRAE TC 9.9对热环境性能进行了评价。结果表明：4种地板送风方式各有利弊，送风方式选择应根据实际需求进行取舍。将实测数据和模拟结果进行了对比验证，使用供热指数（SHI）和回热指数（RHI）评价了数据中心的安全性和节能效果。
Abstract：
Simulates the airflow streamlines and temperature fields of four typical data center underfloor air distribution modes of cold/hot aisle airflow open-ended mode (C/HAOS), hot aisle containment mode (HACS), cold aisle under rack mode (CURS), and cold aisle containment mode (CACS). According to ASHRAE TC 9.9, evaluates the thermal environment performance. The results show that four typical modes have their own advantages and disadvantages, and should be applied according to the requirements in the implementation. Compares the measured data and simulation results, and adopts supply heat index (SHI) and return heat index (RHI) to evaluate the thermal stability and energy efficiency of the data center.
Keywords:data center, thermal environment, underfloor air distribution, numerical simulation, experimental verification, evaluation index