Journal of Shandong University(Engineering Science) ›› 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 • Previous Articles    

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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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

CLC Number: 

  • TK172.4
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