Efficient jet-assisted single-phase immersion liquid cooling for high heat-flux servers

IF 6.1 2区工程技术 Q2 ENERGY & FUELS

Applied Thermal Engineering Pub Date : 2024-11-17 DOI:10.1016/j.applthermaleng.2024.124935

Chendong Liu, Yongping Huang, Chengbin Zhang

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引用次数: 0

Abstract

With the trend toward integration and decarbonization in data centers, exploring clean and efficient cooling solutions has become increasingly urgent. In response, this study proposes an innovative single-phase immersion liquid cooling (SPILC) system with jet-assisted enhancement. By establishing a three-dimensional cooling model, the performance of conventional and jet-assisted SPILC systems is compared. Moreover, an in-depth study is conducted on the impacts of different jet designs and heatsink optimization on jet-assisted SPILC systems. The results show that the thermal management performance of jet-assisted SPILC systems has significantly improved compared to the conventional one, with the electronic component temperature and coolant temperature uniformity index of jet-assisted SPILC systems decreasing by 6.1 % and 73.1 %, respectively. For the jet-assisted SPILC system, the coolant temperature uniformity is better in the horizontal layout, but the flow resistance is increased compared to the vertical layout. Moreover, its cooling performance improves with the increased jet flow rate ratio, which achieves the best at a jet angle of 90 °. Balancing the trade-off between flow resistance and heat transfer, the thermal management performance of jet-assisted SPILC systems is maximized when the jet-impacted high heat-flux device’s heatsink has a pin fin size of 3 × 3 mm.

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用于高热流服务器的高效喷射辅助单相浸入式液体冷却技术

随着数据中心的集成化和去碳化趋势，探索清洁高效的冷却解决方案变得日益迫切。为此，本研究提出了一种创新的单相浸入式液体冷却（SPILC）系统，该系统具有喷射辅助增强功能。通过建立三维冷却模型，比较了传统和喷射辅助 SPILC 系统的性能。此外，还深入研究了不同喷流设计和散热器优化对喷流辅助 SPILC 系统的影响。结果表明，喷射辅助 SPILC 系统的热管理性能与传统系统相比有了明显改善，喷射辅助 SPILC 系统的电子元件温度和冷却剂温度均匀性指数分别降低了 6.1% 和 73.1%。对于喷射辅助 SPILC 系统，水平布局的冷却剂温度均匀性更好，但与垂直布局相比，流动阻力增大。此外，其冷却性能随着喷射流速比的增加而提高，在喷射角度为 90 ° 时达到最佳。在平衡流动阻力和热传导之间的权衡后，当喷流冲击高热流器件的散热片的针状鳍片尺寸为 3 × 3 毫米时，喷流辅助 SPILC 系统的热管理性能达到最大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Thermal Engineering 工程技术-工程：机械

CiteScore

11.30

自引率

15.60%

发文量

1474

审稿时长

57 days

期刊介绍： Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application. The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.