地板下送风数据中心冷通道导流的结构研究  

Study on cold aisle diversion structure in underfloor air supply data center

作　　者：许陆顺 张忠斌[1] 宋平 巩莉 XU Lushun;ZHANG Zhongbin;SONG Ping;GONG Li(School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210023,China)

机构地区：[1]南京师范大学能源与机械工程学院,江苏南京210023

出　　处：《西安工程大学学报》2023年第5期53-60,共8页Journal of Xi’an Polytechnic University

基　　金：江苏省科技计划项目政策引导类计划(BR2020041);江苏省研究生科研与实践创新计划(SJCX23_0564)。

摘　　要：针对传统数据中心热性能较差的问题,提出复合型、线型、凸型和凹型导流板等4种导流结构。通过Airpak3.0对机房空调(computer room air conditioner,CRAC)原始结构的5种数据中心进行数值模拟,分析不同导流结构对数据中心热性能的影响,并通过实验验证了该模型。结果表明,导流结构在很大程度上优化了数据中心热性能,其中复合型导流板效果一般,凸型导流板优化速度分布较好,但热环境温度优化较差,凹型导流板温度场分布不均匀,线型导流板效果最佳。In response to the issue of suboptimal thermal performance in traditional data centers,four distinct airflow management structures,namely,composite,linear,convex,and concave diversion plates,were proposed.With Airpak 3.0,numerical simulations were conducted on five different data centers,including the original configuration of the computer room air conditioner(CRAC).The objective was to assess the impact of various airflow management structures on the thermal performance of data centers,with experimental validation of the model.The findings demonstrate that these airflow management structures significantly enhance the thermal performance of data centers.Among them,the composite diversion plate yielded moderate improvements,the convex diversion plate effectively optimized velocity distribution,in spite of limitations on temperature optimization,and the concave diversion plate exhibited non-uniform temperature distribution.Overall,the linear diversion plate proved to be the most effective.

关 键 词：数据中心 气流组织 冷通道封闭 导流结构 热性能 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]