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Experimental investigation of vapor chambers with different wick structures at various parameters

Li, Yong, Li, Zixi, Zhou, Wenjie, Zeng, Zhixin, Yan, Yuying, Li, Bo (2016) Experimental investigation of vapor chambers with different wick structures at various parameters. Experimental Thermal and Fluid Science, 77 . pp. 132-143. ISSN 0894-1777. (doi:10.1016/j.expthermflusci.2016.04.017) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:87847)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
https://doi.org/10.1016/j.expthermflusci.2016.04.0...

Abstract

In this study, copper water vapor chambers (VCs) with two wick structures (copper foam and copper powder) are manufactured. An air-cooled test rig is designed to investigate the thermal performance. For copper-foam-based VCs (CFVCs), samples with filling rates ranging from 50% to 190% are manufactured; for copper-powder-sintered VCs (CPVCs), copper powders with particle sizes ranging from 66 ± 9 μm to 265 ± 85 μm are sintered. The VC samples are tested at heat loads ranging from 60 W to 200 W under 20 mm × 20 mm heating area; CFVC with 120% filling rate and CPVC with 66 ± 9 μm particle size are also tested at heat loads ranging from 60 W to 140 W under 10 mm × 10 mm heating area, to evaluate the effect of heating area. Response time, temperature uniformity of the condenser zone, and thermal resistance are used as performance indicators. Results show that CFVCs exhibit good temperature uniformity and that CPVCs exhibit low thermal resistance. CFVCs with moderate filling rates ranging from 90% to 120% outperform those with other filling rates; CPVCs with fine-particle powders outperform those with coarse-particle powders. Furthermore, an increased heating area enhances the performance.

Item Type: Article
DOI/Identification number: 10.1016/j.expthermflusci.2016.04.017
Uncontrolled keywords: Vapor chamber; Wick structure; Filling rate; Particle size; Heat transfer
Subjects: T Technology > TJ Mechanical engineering and machinery > Control engineering
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Amy Boaler
Date Deposited: 30 Apr 2021 13:58 UTC
Last Modified: 17 Aug 2022 12:22 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/87847 (The current URI for this page, for reference purposes)

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