Experimental Study of Composite Heat Pipe Radiator in Thermal Management of Electronic Components

Yi Wan, Jiajie Qian, Yuefeng Zhu, Hui Xu (), Jingyuan Wang (), Ying Gao, Junjie Ma, Yibao Kan, Tianrui Song and Hong Zhang
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Yi Wan: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Jiajie Qian: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Yuefeng Zhu: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Hui Xu: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Jingyuan Wang: Gansu Engineering Consulting Group Co., Ltd., Lanzhou 730030, China
Ying Gao: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Junjie Ma: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Yibao Kan: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Tianrui Song: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
Hong Zhang: School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China

Energies, 2024, vol. 17, issue 12, 1-14

Abstract: Conventional straight fin (SF) radiators have difficulties meeting the cooling requirements of high-power electronic components. Therefore, based on the structure and technology of the detachable fin radiator, this paper proposes a kind of radiator embedded in the heat pipe base and uses the roll-bond flat heat pipe (RBFHP) to replace the traditional fin. The radiator has the advantages of modularity, easy manufacturing, low cost and good heat balance. In this study, the heat pipes (HPs)-RBFHPs radiator was tested in natural convection and forced convection to mimic the actual application scenario and compared with the conventional aluminum radiator. Heating power, angle, wind speed and other aspects were studied. The results showed that the cooling performance of the HPs-RBFHPs radiator was improved by 10.7% to 55% compared with that of the SF radiator under different working conditions. The minimum total thermal resistance in the horizontal state was only 0.37 °C/W. The temperature equalization of the base played a dominant role in the performance of the radiator at a large angle, and the fin group could be ineffective when the angle was greater than 60°. Under the most economical conditions with an inclination of 0° and a wind speed of 2 m/s, the input power was 340 W, the heat source temperature of the HPs-RBFHPs was only 64.2 °C, and the heat dissipation performance was 55.4% higher than that of SFs.

Keywords: finned radiator; heat pipe; roll-bond flat thermosyphon; nature convection air cooling; forced convection cooling; thermal performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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