Force-thermal analysis of large-area microchannel embedded cooling plate in improving thermal management of high-power density data centers

IF 2.5 3区工程技术 Q2 ENGINEERING, MECHANICAL

Experimental Heat Transfer Pub Date : 2023-10-24 DOI:10.1080/08916152.2023.2273812

Jialiang Yang

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引用次数: 0

Abstract

ABSTRACTA thermal management method for data centers from the server level is proposed in this paper. This paper explores the high energy consumption of the server itself, proposing a principle of microchannel shape design for a cooling plate based on the principal stress lines (PSLs). Under the condition of a uniform load, the influence of the cross-sectional shape of the microchannel on the contact thermal resistance was found to be insignificant. From the analysis of cooling plate plane, the uniformity of the stress distribution of the microchannel determined the uniformity of the contact thermal resistance, which determined the heat dissipation ability. Experiments were developed to test and verify the cooling performance of the cooling plate as well as the performance differences with the microchannels along and away from the PSLs under deformation. It was concluded that compared with the conventional serpentine microchannel, the cooling performance of the cooling plate proposed in this paper was 4.5 ∘C reduction in average temperature. Furthermore, when the ultra-thin cooling plate was subjected to a uniform load distribution, the microchannel along a single PSL had the best stress distribution, that is, the contact thermal resistance had the least variation.KEYWORDS: Data centersprincipal stress linemicrochannel designheat dissipationthermal management NomenclatureTableDisplay TableDisclosure statementNo potential conflict of interest was reported by the author(s).

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大面积微通道嵌入式冷却板在提高高功率密度数据中心热管理中的力热分析

提出了一种从服务器层面对数据中心进行热管理的方法。针对服务器本身能耗高的问题，提出了一种基于主应力线(psl)的冷却板微通道形状设计原理。在均匀负载条件下，微通道的截面形状对接触热阻的影响不显著。从冷却板平面分析，微通道应力分布的均匀性决定了接触热阻的均匀性，从而决定了散热能力。通过实验测试和验证了冷却板的冷却性能，以及在变形情况下，沿微通道和远离微通道的冷却性能差异。结果表明，与传统的蛇形微通道相比，本文提出的冷却板的冷却性能比传统的蛇形微通道平均温度降低4.5°C。此外，当超薄冷却板受到均匀负载分布时，沿单个PSL的微通道具有最佳应力分布，即接触热阻变化最小。关键词:数据中心主应力线微通道设计散热热管理命名表显示表披露声明作者未报告潜在利益冲突。

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

Experimental Heat Transfer 工程技术-工程：机械

CiteScore

6.30

自引率

37.10%

发文量

审稿时长

>12 weeks

期刊介绍： Experimental Heat Transfer provides a forum for experimentally based high quality research articles and communications in the general area of heat-mass transfer and the related energy fields. In addition to the established multifaceted areas of heat transfer and the associated thermal energy conversion, transport, and storage, the journal also communicates contributions from new and emerging areas of research such as micro- and nanoscale science and technology, life sciences and biomedical engineering, manufacturing processes, materials science, and engineering. Heat transfer plays an important role in all of these areas, particularly in the form of innovative experiments and systems for direct measurements and analysis, as well as to verify or complement theoretical models. All submitted manuscripts are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer reviews are single blind and submission is online via ScholarOne Manuscripts. Original, normal size articles, as well as technical notes are considered. Review articles require previous communication and approval by the Editor before submission for further consideration.