Condensation regimes inside a vapor chamber with transparent hollow fins of circular, triangular or fluted cross section

Bérut, Elise; Lips, Stéphane; Lefèvre, Frédéric; Sartre, Valérie

doi:10.1016/j.ijthermalsci.2022.107983

Cited by 9 publications

(1 citation statement)

References 65 publications

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“…Rezk et al [17] designed an integrated vapor chamber-straight fins (VCSF) heat sink using the bottom of the fin as the condensing end, and the results showed that VCSF's reduction of the temperature of electronic components under all operating conditions compares to that of SFs. Berut et al [18] manufactured and tested a vapor chamber with integrated hollow fins, determining a triangle as the optimal fin geometry to prevent liquid hold-up and flooding on the condensing end. Ji et al [19] designed an integrated flat heat pipe (IFHP) that consists of an evaporator and a condenser with multiple channels fabricated in the fin heat sink and compared it with a conventional flat heat pipe (CFHP).…”

Section: Introductionmentioning

confidence: 99%

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

Wan,

Qian,

Zhu

et al. 2024

Energies

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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.

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Section: Introductionmentioning

confidence: 99%