| 摘要: |
| 机柜级背板冷却在机柜内部解决散热问题，可以减少冷量浪费，极大提高制冷效率。为研究背板式风冷机柜在不同工况下的冷却能力，本文通过CFD模拟软件建立机柜模型，对机柜内的热环境进行模拟。结果表明：机柜内部气流组织良好，基本没有发生冷热气流掺混的现象。服务器温度随机柜循环风量的增大而减小，且降幅随着风量的增加而减小。随着进风温度的升高，服务器温度呈直线上升。当进风温度为18、20、22、24、26 ℃时，总循环风量在2 400~3 200 m3/h范围内变化，42U机柜最高负载功率范围依次为11.7~15.0、11.2~14.5、10.8~14.0、10.3~13.4、9.8~12.7 kW。 |
| 关键词: 数据中心 背板式机柜 冷却能力 模拟研究 |
| DOI： |
| Received:June 29, 2022Revised:September 01, 2022 |
| 基金项目:国家自然科学基金（51778115）;中央高校基本科研业务专项资金（N182502043） |
|
| Analysis of Cooling Capacity of Backplane Air-cooled Rack |
|
Sun Xiaoqing, Han Zongwei, Yang Ziwei, Zhang Ce
|
| (College of Metallurgy, Northeastern University) |
| Abstract: |
| Backplane air conditioner cooling solves the heat dissipation problem inside a rack, which can reduce the waste of cooling capacity and significantly improve refrigeration efficiency. To explore the cooling capacity of a backplane air-cooled rack under different working conditions, a rack model was established using CFD simulation software to simulate the thermal environment of the rack. The results showed that the air distribution inside the rack was good, and there was no mixing of cold and hot air. The server temperature decreased with an increase in the circulating air volumetric flow rate, and the decreasing trend saturated at higher flow rates. As the inlet air temperature increased, the server temperature increased linearly. When the inlet air temperature was 18, 20, 22, 24, and 26 °C, by changing the total circulating air volumetric flow rate changed within the range of 2 400–3 200 m3/h, the maximum load power range of a 42U rack was 11.7–15.0 kW, 11.2–14.5 kW, 10.8–14.0 kW, 10.3–13.4 kW and 9.8–12.7 kW. |
| Key words: data center backplane rack cooling capacity simulation study |
