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山东大学学报 (工学版) ›› 2025, Vol. 55 ›› Issue (6): 90-99.doi: 10.6040/j.issn.1672-3961.0.2024.335

• 能动工程——热管理专题 • 上一篇    

多热源冷却的新型环路热管设计及性能

柳洋1,朱波1,陈超伟2,陈岩2,辛公明2*   

  1. 1.山东省特种设备检验研究院集团有限公司, 山东 济南 250101;2.山东大学核科学与能源动力学院, 山东 济南 250061
  • 发布日期:2025-12-22
  • 作者简介:柳洋(1995— ),男,山东烟台人,工程师,博士,主要研究方向为强化传热传质及节能技术. E-mail:youngofsc@126.com. *通信作者简介:辛公明(1977— ),男,山东日照人,教授,博士生导师,博士,主要研究方向为功率器件热管理. E-mail:xingm@sdu.edu.cn
  • 基金资助:
    国家重点研发计划资助项目(2022YFB4004400);山东省重点研发计划资助项目(2022SFGC0801);山东省自然科学基金资助项目(ZR2023ME184)

Design and performance of a novel loop heat pipe for multi-heat-sources cooling

LIU Yang1, ZHU Bo1, CHEN Chaowei2, CHEN Yan2, XIN Gongming2*   

  1. LIU Yang1, ZHU Bo1, CHEN Chaowei2, CHEN Yan2, XIN Gongming2*(1. Shandong Special Equipment Inspection Institute Group Co., Ltd., Jinan 250101, Shandong, China;
    2. School of Nuclear Science, Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China
  • Published:2025-12-22

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摘要： 为了解除环路热管在多热源工况下的使用限制,拓展环路热管内工质的循环换热效率,在传统环路热管基础上,设计制造一种针对多热源冷却的新型环路热管。该环路热管具有一个蒸发器和多个热沉部件,通过内部流体工质循环将蒸发器及热沉处的热量吸收并在冷凝器处释放,实现同时对多个热源冷却。通过对传统环路热管进行优化设计,制造上述结构的新型环路热管,进一步探究新型环路热管中热沉数量变化对运行性能的影响。通过试验验证新型环路热管运行的可行性,其内部产生的循环流量最高达45 mL/min,相较于优化设计前,系统整体散热量最高提升90%。在此基础上,对不同结构的新型环路热管启动及稳定运行性能参数进行对比,结果显示,新型环路热管中热沉数量变化会对内部工质的循环阻力产生显著影响,进而影响系统内工质的循环流量,决定蒸发器和热沉的冷却能力。

关键词: 环路热管, 多热源, 冷却系统, 相变, 多孔介质

Abstract: To overcome the limitations of loop heat pipes under multi-heat-sources conditions and enhance the circulation and heat exchange efficiency of the working fluid, a novel loop heat pipe was designed and fabricated based on the traditional structure to provide cooling for multi-heat-sources simultaneously. This loop heat pipe featured one evaporator and multiple heat sinks. By circulating the working fluid internally, it absorbed heat from the evaporator and heat sinks and released it at the condenser, achieving simultaneous cooling of multi-heat-sources. Through the optimization of the traditional loop heat pipe design, the novel structure was manufactured, and the effect of varying the number of heat sinks on its operational performance was further investigated. Experimental tests verified the feasibility of the new loop heat pipe, showing that the system generated a maximum circulation flow rate of 45 mL/min. Compared with the pre-optimized design, the overall heat dissipation capacity of the system increased by up to 90%. A comparison of the startup and stable operation performance parameters of different structural configurations showed that changes in the number of heat sinks affected the circulation resistance of the working fluid inside the system, thereby influencing the circulation flow rate and ultimately determining the cooling capacity of the evaporator and heat sinks.

Key words: loop heat pipe, multi-heat-sources, cooling system, phase change, porous media

中图分类号: 

  • TK172.4
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