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首页> 外文期刊>International Journal of Heat and Mass Transfer >Pool boiling CHF of reduced graphene oxide,graphene,and SiC-coated surfaces under highly wettable FC-72
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Pool boiling CHF of reduced graphene oxide,graphene,and SiC-coated surfaces under highly wettable FC-72

机译：在高度可润湿的FC-72下还原的氧化石墨烯，石墨烯和SiC涂层表面的池沸腾CHF

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摘要

This paper presents the results of a study of enhanced boiling heat transfer (BHT) and critical heat flux (CHF) for a bare indium tin oxide (ITO) surface, a nonporous few-layered graphene-deposited ITO surface, a nonporous SiC layer-deposited ITO surface, and porous graphene and silicon carbide (SiC) layer-deposited ITO surfaces. The experiments were conducted under atmospheric pressure using an FC-72 refrigerant under saturation conditions. Infrared thermometry was used to determine the temperature fields of the heater surfaces and the CHF conditions. The CHF values for the surfaces with highly thermally conductive nonporous graphene layers and nonporous SiC layers were found to be increased by 9% and 15.7%, respectively, compared to that of the bare ITO heating surface. For the heating surfaces with porous graphene layers and SiC layers, the CHF values were increased by 90% and 58%, respectively. All of the heating surfaces exhibited hydrophilic behavior with respect to the FC-72 fluid. The differences in CHF enhancement observed can be explained by differences in the thermal properties of graphene and SiC, their heat dissipation limits, differences in aspects of their surface morphologies, such as their porosities and permeabilities, and the effects of these on their hydrodynamic limits and capillary pumping limits.
机译：本文介绍了对裸露的氧化铟锡（ITO）表面，无孔几层石墨烯沉积的ITO表面，无孔SiC层进行增强沸腾传热（BHT）和临界热通量（CHF）的研究结果。沉积的ITO表面以及多孔的石墨烯和碳化硅（SiC）层沉积的ITO表面。实验是在大气压下使用FC-72制冷剂在饱和条件下进行的。红外测温法用于确定加热器表面的温度场和CHF条件。与具有裸露的ITO加热表面相比，发现具有高导热性的无孔石墨烯层和无孔SiC层的表面的CHF值分别增加了9％和15.7％。对于带有多孔石墨烯层和SiC层的加热表面，CHF值分别增加了90％和58％。对于FC-72流体，所有加热表面均表现出亲水性。观察到的CHF增强的差异可以用石墨烯和SiC的热性能，散热极限，表面形态方面的差异（例如孔隙率和磁导率）以及它们对流体力学极限和温度的影响来解释。毛细管抽吸极限。

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  • 作者

    Han Seo; Jae Hwan Chu; Soon-Yong Kwon; In Cheol Bang;

  • 作者单位

    School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 689-798, Republic of Korea;

    School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 689-798, Republic of Korea;

    School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 689-798, Republic of Korea;

    School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 689-798, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Critical heat flux; Boiling heat transfer; Graphene; SiC; Wettability; Porous structure; Crud; Porosity; Permeability;

    机译：临界热通量;沸腾传热;石墨烯碳化硅;润湿性多孔结构克鲁德孔隙率磁导率;

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