Experimental study of two-phase closed thermosyphon with super-hydrophilic and super-hydrophobic surfaces

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Mechanical Science and Technology Pub Date : 2024-08-02 DOI:10.1007/s12206-024-2110-9

Seong-Won Seo, Hyunjun Sun, Younghun Shin, Hyukjun Ha, Chanyong Lee, Kwon-Yeong Lee

引用次数: 0

Abstract

In this study, the heat transfer performance of a two-phase closed thermosyphon with super-hydrophobic (SH-phobic) condenser and super-hydrophilic (SH-philic) evaporator is investigated, and the results are compared with those of a bare condenser. At 100–200 W, the total thermal resistance on the SH-phobic surface decreases by up to 10.40 %, 0.41 % and 27.44 % compared with the bare condenser surface at filling ratios of 0.25, 0.5, and 0.75, respectively. However, the total thermal resistance increases by 55.06 %, 411.35 % and 128.33 % from 300 to 400 W, respectively. The critical heat flux for the SH-phobic surface is lower than for the bare surface. The SH-phobic surface performs better than bare surface in the low-power region (100–200 W), but not in the high-power region above 300 W. Therefore, the input power should be considered when applying the SH-phobic surface to the condensing section.

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具有超亲水和超疏水表面的两相封闭式热流器的实验研究

本研究调查了带有超疏水（SH-phobic）冷凝器和超亲水（SH-philic）蒸发器的两相封闭式热吸附器的传热性能，并将结果与裸冷凝器的传热性能进行了比较。当功率为 100-200 W 时，当填充率为 0.25、0.5 和 0.75 时，疏水表面的总热阻与裸冷凝器表面相比分别降低了 10.40 %、0.41 % 和 27.44 %。然而，从 300 W 到 400 W，总热阻分别增加了 55.06 %、411.35 % 和 128.33 %。疏水表面的临界热通量低于裸表面。在低功率区域（100-200 W），疏水表面的性能优于裸表面，但在 300 W 以上的高功率区域，疏水表面的性能则不如裸表面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Mechanical Science and Technology 工程技术-工程：机械

CiteScore

2.90

自引率

6.20%

发文量

517

审稿时长

7.7 months

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.