Duk-Yong Kim, Kyo-Sung Ji, Jin Kook Seo, Chi-Back Ryu, Jun-Woo Yang, Hye-Yeon Kim, Wonseok Yang, Ki-Pung Yoo, Ingyu Lee, Jooho Lee, Nahmkeon Hur
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引用次数: 0
Abstract
A lightweight large-scale stainless-steel plate heat pipe (SPHP) fin has been developed for cooling high-power electronics, employing very thin 0.15 mm plates and a 3D rib-lattice structure to optimize heat pipe operation. Eco-friendly deionized (DI) water serves as a working fluid of the heat pipe, aligning with environmental concerns and regulations. To assess the heat dissipation effectiveness of the SPHP fin, a constant temperature water bath experiment was conducted to compare its heat transfer characteristics with those of a conventional solid aluminum fin. Furthermore, a test rig was constructed to simulate actual heat dissipation from high-power chips and to investigate the impact of different fin types, locations, and heat fluxes of the chips on cooling performance. Additionally, a simplified method was devised for analyzing the heat transfer of the cooling fin, replacing complex evaporation, condensation, and two-phase flow processes in heat pipes with a virtual solid of high thermal conductivity. Validated by experiments, this method aids in selecting the optimal SPHP fin placement based on chip location and heat flux. The study demonstrates that the SPHP fin significantly outperforms traditional aluminum fins, reducing the temperature of a 25 W heat source by 10 °C to 20 °C depending on the chip’s location.
期刊介绍:
The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering.
Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.