数据机房冷区内气流组织的优化
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摘要
建立数据机房冷区内气流流动的物理及数学模型,利用FLUENT软件模拟冷区内气流的流场分布,模拟值和实测值相吻合。针对模拟数据机房冷区内气流组织的缺点,从服务器进风均匀的角度提出改善方案,再通过FLUENT软件模拟分析。研究结果表明:导流板厚度对冷区服务器的进风均匀性影响不大,导流板高度需覆盖服务器进风的整个高度。静压挡板距离主风口0.40m的冷区气流流场最优,此时冷区服务器进风较均匀,同一竖排服务器进风速度基本一致,保证了服务器工作时能有效散热。
The model of air flow for data center'cold-zone has been set up. The velocity distribution of the data center's coldzone are simulated by FLUENT simulation software. The simulated values fit well with the measured values. As for the defect of air distribution about cold-zone,an optimized project is given from the server inlet air uniformity,which simulated and analyzed by FLUENT simulation software. The results show that the baffle thickness has little effect to the server inlet air uniformity at cold-zone,the baffle height must be more than the server inlet height. When the distance of static baffle to main air port is 0. 40 m,the air flow field at cold-zone is the best. And then the server inlet air quite uniform,which guarantee the effective heat dissipation of the server.
The model of air flow for data center'cold-zone has been set up. The velocity distribution of the data center's coldzone are simulated by FLUENT simulation software. The simulated values fit well with the measured values. As for the defect of air distribution about cold-zone,an optimized project is given from the server inlet air uniformity,which simulated and analyzed by FLUENT simulation software. The results show that the baffle thickness has little effect to the server inlet air uniformity at cold-zone,the baffle height must be more than the server inlet height. When the distance of static baffle to main air port is 0. 40 m,the air flow field at cold-zone is the best. And then the server inlet air quite uniform,which guarantee the effective heat dissipation of the server.
引文
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[2]Jinkyun Cho,Taesub Lim,Byungseon Sean Kim.Measurements and predictions of the air distribution systems in high compute density(Internet)data centers[J].Energy and Buildings,2009,41:1107-1115.
[3]方黎达,彭伟.数据机房的高功率密度设备供冷解决方案浅析[C].2011通信电源学术研讨会论文集,2011:69-72.
[4]Jeffrey Rambo,Yogendra Joshi.Modeling of data center airflow and heat transfer:State of the art and future trends[J].Distrib Parallel Databases,2007,21:193-225.
[5]田浩,李震,刘晓华,等.信息机房热管空调系统应用研究[J].建筑科学,2010,26(10):141-145.
[6]Vishwas Bedekar.Effect of CRAC location on a fixed rack layout of a data center[D].Arlington:The University of Texas at Arlington,2006.
[7]Siddharth Bhopte,Dereje Agonafer,Roger Schmidt,et al.Optimization of data center room layout to minimize rack inlet air temperature[J].Journal of Electronic Packaging,2006,128:380-387.
[8]李扬.数据通信机房流场仿真平台与气流组织研究[D].杭州:浙江大学,2012.
[9]沈向阳,陈嘉澍,吕金虎,等.数据机房热区内气流组织的数值模拟及优化[J].节能技术,2011,29(3):233-237,280.
[10]赖学江,王晓墨.空调房间气流组织的模拟研究[J].华中科技大学学报(自然科学版),2002,30(2):51-53.
[11]孙云雷,王丽慧.地铁活塞风与空调送风耦合的温度场的试验研究[J].流体机械,2012,40(11):54-58.
[12]宣永梅,黄翔,唐宁,等.采用蒸发冷却的辐射供冷空调系统室内热环境模拟验证[J].流体机械,2012,40(10):80-83,57.
[13]付磊,曾燚林,唐克伦,等.管壳式换热器壳程流体流动与传热数值模拟[J].压力容器,2012,29(5):36-41.
[14]陶文铨.数值传热学(第2版)[M].西安:西安交通大学出版社,2001.
[15]周晟杰,王溢芳,舒国安,等.人工环境试验室气流组织模拟及优化[J].流体机械,2008,36(4):73-76.