数据中心热环境数值模拟及气流均匀性优化设计  

Numerical simulation of thermal environment and optimal design of airflow uniformity in data center

作　　者：高雨洁 徐青山[1] GAO Yujie;XU Qingshan(Electrical Engineering College,Southeast University,Nanjing 210000,China)

机构地区：[1]东南大学电气工程学院,南京210000

出　　处：《电力需求侧管理》2024年第6期75-80,共6页Power Demand Side Management

基　　金：国家重点研发计划项目(2022YFB2703500)。

摘　　要：数据中心冷却系统的能耗约占总能耗的40%,合理的气流组织形式能有效提高数据中心制冷效率,改善数据中心的高能耗问题。为了优化数据中心的气流组织形式,首先根据数值模拟的结果定性分析了送风方式、冷通道封闭模式、回风口位置对热环境的影响。其次引入了不均匀系数,利用正交试验法,定量探究了空调布局方式、通孔地板孔隙率、架空地板高度对气流均匀性的影响。基于华东某数据中心算例进行研究,结果表明采用架空地板下送上回风、对冷通道全封闭处理、回风口位置设于热通道上方可以让数据中心热环境表现较好。各因素对气流均匀性的影响主次顺序为空调布局方式、架空地板高度、通孔地板孔隙率。The energy consumption of the data center cooling system accounts for 40%of the total energy consumption.Reasonable air flow organization can effectively improve the cooling efficiency of the data center and improve the high energy consumption of the data cen-ter.In order to optimize air organization of data center,the impact of air supply methods,cold aisle containment,and return air vent posi-tions on the thermal environment are first qualitatively analyzed according to the numerical simulation results.Secondly,the non-uniformi-ty coefficient is introducedto quantitatively investigate the effects of air conditioning layout,perforated raised floor porosity,and raised floor height on air flow uniformity using the orthogonal test method.Based on a case study of a data center in East China,the conclusion is that using raised floor air supply and return air,fully enclosing the cold aisle,and placing the return air outlet above the hot aisle can im-prove the thermal environment performance of the data center.

关 键 词：数据中心 气流组织形式 数值模拟 气流均匀性 正交试验法 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]