Numerical and experimental investigation of a two-phase mini-channel cold plate for a 2 kW fiber laser device

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-05-06 DOI:10.1016/j.csite.2025.106277

Qingwen Gui, Youwei He, Yanan Zou, Yong Chen

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引用次数: 0

Abstract

Phase-change direct cooling is regarded as a promising thermal management scheme for the high power and lightweight fiber laser devices. However, limited research has been conducted to the design and analysis of the two-phase cold plate, which is the core component of the phase-change cooling system for fiber laser. This paper addresses the influence of the structure parameter on the performance of a two-phase mini-channel cold plate used in the phase-change cooling system for a 2 kW fiber laser. Firstly, a fluid-solid coupling heat transfer model for the baseline cold plate is established. The accuracy of the simulation is validated by experiment. Next, validated simulation method is employed to analyze the effects of rib number, rib width, and rib height on the heat dissipation performance of the cold plate. Further, the study investigates the impact of key operating parameters, including heat source power and refrigerant flow rate, on the performance of the phase-change cold plate. Finally, by analyzing the relationship between the highest temperature of the cold plate, heat source power, and coolant flow rate, a performance map is created for the highest temperature of the cold plate. This map allows for better matching of the required coolant flow rate for the cooling plate under given heat dissipation load, which would play a crucial role in designing the controller for the phase-change cooling system for the 2 kW fiber laser.

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2kw光纤激光器两相微通道冷板的数值与实验研究

相变直接冷却被认为是一种很有前途的高功率、轻量化光纤激光器热管理方案。然而，作为光纤激光器相变冷却系统核心部件的两相冷板的设计与分析研究较少。本文研究了用于2kw光纤激光器相变冷却系统的两相微通道冷板的结构参数对其性能的影响。首先，建立了基准冷板的流固耦合传热模型。通过实验验证了仿真的准确性。其次，采用验证的仿真方法分析肋数、肋宽和肋高对冷板散热性能的影响。进一步研究了热源功率和制冷剂流量等关键运行参数对相变冷板性能的影响。最后，通过分析冷板最高温度与热源功率、冷却剂流量之间的关系，建立了冷板最高温度的性能图。该图可以更好地匹配给定散热负荷下冷却板所需的冷却剂流量，这将对设计2kw光纤激光器相变冷却系统的控制器起关键作用。

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

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.