使用两步非热等离子工艺对涂层铜表面的池沸性能进行实验研究

IF 4.9 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Thermal Sciences Pub Date : 2024-06-08 DOI:10.1016/j.ijthermalsci.2024.109207

Hamid Reza Mohammadi , Hamed Taghvaei , Ataollah Rabiee

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引用次数: 0

摘要

在本研究中，通过结合使用六甲基二硅氧烷（HMDSO）的等离子聚合和氩气等离子活化，在铜表面形成了类似 SiOx 的稳定亲水薄层。通过池沸实验研究了涂层对两种不同过冷温度下传热系数（HTC）和临界热通量（CHF）的影响。结果发现，改性表面的 HTC 和 CHF 分别提高了 42% 和 97%。使用扫描电子显微镜 (SEM)、能量色散 X 射线光谱仪 (EDX)、傅立叶变换红外光谱仪 (FT-IR) 和接触角测量法研究了涂层的化学成分以及表面粗糙度、润湿性和孔隙率的变化。等离子涂层表面的沸腾/冷却实验显示出良好的稳定性，表明即使经过三次沸腾/冷却循环，表面特性仍能保持稳定。

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Experimental investigation of pool boiling performance on a coated copper surface using a two-step non-thermal plasma process

In this study, a stable hydrophilic thin layer resembling SiO_x is formed on the copper surface by combining plasma polymerization using hexamethyldisiloxane (HMDSO) and Ar plasma activation. The effect of coating on the Heat Transfer Coefficient (HTC) and Critical Heat Flux (CHF) at two different subcooling temperatures is investigated through pool boiling experiments. It is found that the HTC and CHF of the modified surface improved by 42 % and 97 %, respectively. The chemical composition of the coating, as well as changes in surface roughness, wettability, and porosity, are studied using the Scanning Electron Microscope (SEM), Energy Dispersive X-ray spectrometer (EDX), Fourier Transform Infrared (FT-IR) spectroscopy, and contact angle measurement. The boiling/cooling experiments for the plasma-coated surface show good stability, demonstrating that the surface characteristics remain stable even after three boiling/cooling cycles.

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来源期刊

International Journal of Thermal Sciences 工程技术-工程：机械

CiteScore

8.10

自引率

11.10%

发文量

531

审稿时长

55 days

期刊介绍： The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review. The fundamental subjects considered within the scope of the journal are: * Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow * Forced, natural or mixed convection in reactive or non-reactive media * Single or multi–phase fluid flow with or without phase change * Near–and far–field radiative heat transfer * Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...) * Multiscale modelling The applied research topics include: * Heat exchangers, heat pipes, cooling processes * Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries) * Nano–and micro–technology for energy, space, biosystems and devices * Heat transport analysis in advanced systems * Impact of energy–related processes on environment, and emerging energy systems The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.