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contributor authorLuo, Kai
contributor authorGross, Andrew J.
contributor authorBrown, Jackson
contributor authorChang, Wei
contributor authorLi, Chen
date accessioned2024-12-24T18:43:18Z
date available2024-12-24T18:43:18Z
date copyright7/12/2024 12:00:00 AM
date issued2024
identifier issn1948-5085
identifier othertsea_16_9_091009.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4302622
description abstractAdvancements in flexible electronics demand innovative thermal management solutions that are both flexible and efficient. A fully 3D-printed polymeric heat pipe with high flexibility and low cost was demonstrated in this study. This wickless gravity-assisted heat pipe was fabricated using a commercial stereolithography 3D printer and soft elastomer. An interconnected pocket array was designed to reduce the wall thickness to 0.1 mm. The post-cured heat pipe can be flexed and twisted without tearing or permanent deformation. Experimental studies were conducted to characterize the performance of the heat pipe in vertical and 90-deg flexed configurations. In addition, high-speed imaging was applied to visualize the boiling process within the heat pipe. By charging with a compatible dielectric fluid HFE-7100, the present heat pipe achieved 18.6 W heat dissipation over a hot spot with an area of 25 × 25 mm2, representing about 125% higher heat flux than most reported fully polymeric heat pipes using the same working fluid. When placed vertically, the result showed an effective thermal conductivity of up to 102.7 W/(m · K). The visualization indicated little difference in bubble dynamics between the vertical and flexed configurations owing to a high charging mass. The heat pipe startup occurred at 5.4 W, and no dryout was observed within the test range for either configuration. Finally, a comparison of the present study and other reported fully polymeric flexible heat pipes was made, and future optimization of the heat pipe performance was discussed.
publisherThe American Society of Mechanical Engineers (ASME)
titleA Fully 3D-Printed Flexible Polymeric Heat Pipe
typeJournal Paper
journal volume16
journal issue9
journal titleJournal of Thermal Science and Engineering Applications
identifier doi10.1115/1.4065748
journal fristpage91009-1
journal lastpage91009-8
page8
treeJournal of Thermal Science and Engineering Applications:;2024:;volume( 016 ):;issue: 009
contenttypeFulltext


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