Enhancing the thermal performance of a phase change energy storage assisted ventilation system via unit structure optimization for data center

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-07-21 DOI:10.1016/j.icheatmasstransfer.2025.109396

Hongli Xu , Jiri Zhou , Xing Liang , Xiaoyan Yi , Hongwei Wu , Ruiyong Mao , Zujing Zhang

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引用次数: 0

Abstract

This numerical study aims to improve the melting uniformity of the phase change plate (PCP) by optimizing structure, enhancing the energy efficiency of PCP's application in the ventilation system of data centers. The anterior-to-posterior slope ratio (W_r), fin configuration, and volume of the PCP are optimized. For the practical application of the PCP with an optimized structure and configuration, the effects of ambient temperature, air supply velocity, phase change temperature and thermal conductivity have been studied. The main results are as follows: (i) When the PCP changes from a rectangular body to a trapezoidal body, the uniformity of melting is improved by 93 %. The average cooling range of PCP increases by 0.5 °C, and the energy-saving rate increases by 22 %. (ii) The structure of the PCP with the volume of 19 L, a W_r of 1.5 and double fin arranged horizontally parallel to the PCP effectively shorts the charging time from 14 h to 11.6 h. (iii) A nonlinear functional relationship between the cooling performance of the system and the main four variables is proposed. This work provides guidelines for the application of PCP in data center.

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通过单元结构优化提高数据中心相变储能辅助通风系统的热性能

本数值研究旨在通过优化结构来改善相变板（PCP）的熔化均匀性，提高PCP在数据中心通风系统中的应用能效。优化了PCP的前后斜率比（Wr）、翅片结构和体积。在实际应用中，研究了环境温度、送风速度、相变温度和导热系数对PCP结构和构型优化的影响。主要结果如下：(1)当PCP由矩形体变为梯形体时，熔化均匀性提高了93%。PCP的平均冷却范围提高0.5℃，节能率提高22%。(2)容积为19 L、Wr为1.5、双翅片与PCP平行布置的PCP结构有效地将充注时间从14 h缩短至11.6 h。(3)提出了系统冷却性能与4个主要变量之间的非线性函数关系。该工作为PCP在数据中心的应用提供了指导。

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

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.