Simulation Study on Key Parameters of Single-phase Liquid-cooling Cabinet in Data Centers

Liu Shengchun; Xu Zhiming; Li Xueqiang; Zhang Xinyu; Sun Haiwang

doi:10.3969/j.issn.0253-4339.2023.02.159

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Simulation Study on Key Parameters of Single-phase Liquid-cooling Cabinet in Data Centers

更新时间：2024-07-18

- Simulation Study on Key Parameters of Single-phase Liquid-cooling Cabinet in Data Centers
- Journal of Refrigeration Vol. 44, Issue 2, (2023)
- 作者机构：
  
  1. 天津商业大学天津市制冷技术重点实验室
  2. 天津大学中低温热能高效利用教育部重点实验室
  3. 天津提尔科技有限公司
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2023.02.159
  CLC：
- Published：2023
- 稿件说明：
移动端阅览
Liu Shengchun, Xu Zhiming, Li Xueqiang, et al. Simulation Study on Key Parameters of Single-phase Liquid-cooling Cabinet in Data Centers[J]. Journal of refrigeration, 2023, 44(2).
DOI：

Liu Shengchun, Xu Zhiming, Li Xueqiang, et al. Simulation Study on Key Parameters of Single-phase Liquid-cooling Cabinet in Data Centers[J]. Journal of refrigeration, 2023, 44(2). DOI： 10.3969/j.issn.0253-4339.2023.02.159.

摘要

随着数据中心冷却技术的发展，单相浸没式液冷技术表现出巨大的应用前景。在该冷却方式下，需将服务器浸没于液冷箱体内，通过冷却液的强制流动带走服务器热量。本文建立了1U服务器与液冷箱体模型，从服务器（局部）与液冷箱体（整体）两个角度出发，对影响其性能的关键参数进行了仿真研究。结果表明：选取高性能散热器，合理设计服务器内部结构，可以有效提升机柜的冷却性能；流量的增加可以改善液冷系统的冷却性能，但也会造成压力损失的增加；挡板可以强制冷却液流入服务器，显著降低CPU温度，增设挡板前后CPU温度相差19.8 ℃，这是影响该冷却技术性能最为关键的参数。

Abstract

Liquid-cooling technologies show substantial prospects as heat load increases in data centers. In this study

a single-phase liquid-cooling cabinet is established. In terms of servers and cabinets

the following important parameters are investigated: structure factors

operating parameters

and physical parameters of the coolant. The results show that high-performance radiators and reliable internal structures can effectively promote the cooling performance of the cabinet. Increasing the flow rate can improve the performance of this system

at the cost of an increased pressure drop. The baffle can force the coolant to flow into the server and significantly reduce the CPU temperature. The change in the CPU temperature before and after adding the baffle is 19.8 °C. The conclusions of this study can provide guidance for the design of single-phase immersion data centers.

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