contributor author | Luo, Kai | |
contributor author | Gross, Andrew J. | |
contributor author | Brown, Jackson | |
contributor author | Chang, Wei | |
contributor author | Li, Chen | |
date accessioned | 2024-12-24T18:43:18Z | |
date available | 2024-12-24T18:43:18Z | |
date copyright | 7/12/2024 12:00:00 AM | |
date issued | 2024 | |
identifier issn | 1948-5085 | |
identifier other | tsea_16_9_091009.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4302622 | |
description abstract | Advancements 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. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | A Fully 3D-Printed Flexible Polymeric Heat Pipe | |
type | Journal Paper | |
journal volume | 16 | |
journal issue | 9 | |
journal title | Journal of Thermal Science and Engineering Applications | |
identifier doi | 10.1115/1.4065748 | |
journal fristpage | 91009-1 | |
journal lastpage | 91009-8 | |
page | 8 | |
tree | Journal of Thermal Science and Engineering Applications:;2024:;volume( 016 ):;issue: 009 | |
contenttype | Fulltext | |