The heat transfer performance of the superhydrophobic surfaces with wear resistance

被引:0
作者
Yao, Yuanlin [1 ]
Peng, Yi [1 ]
Lv, Jin [1 ]
Yang, Chong [1 ]
Li, Ting [1 ]
Luo, Yuanqiang [2 ]
机构
[1] Guizhou Univ, Sch Mech Engn, Guiyang 550025, Peoples R China
[2] South China Agr Univ, Sch Engn, 381 Wushan Rd, Guangzhou 510641, Peoples R China
基金
中国国家自然科学基金;
关键词
Condensation heat transfer; Superhydrophobic surface; Microstructure pyramid; Robust superhydrophobic surfaces; Droplet dynamics; DROPWISE CONDENSATION; ENHANCED CONDENSATION; COATINGS; DESIGN; WETTABILITY; FABRICATION; NANOWIRES; FLOW;
D O I
10.1016/j.ijheatmasstransfer.2024.126554
中图分类号
O414.1 [热力学];
学科分类号
摘要
Superhydrophobic surfaces are widely used in self-cleaning, anti-icing and enhancing condensation heat transfer. Here, the superhydrophobic surface was prepared with micro-nano structure to enhance steam condensation heat transfer, while maintaining good mechanical stability. The influence of different wettability surfaces, different microstructure substrates and surface subcooling on the droplet dynamics and heat transfer performance of condensate droplets were studied by visualization techniques. The results demonstrate that the contact angle of the coated pyramid surface can still reach similar to 135 degrees after 30 abrasion cycles, this is because the microstructure pyramid can well protect the hydrophobic particles embedded in these surfaces. The heat flux of the coated pyramid surface (with the base surface etched for 30 min) increased by 38.8 % and 116 %, compared with the coated micropillar surface and the hydrophilic surface, respectively, at high subcooling (similar to 17 K). This is mainly because the condensed droplets on the coated pyramid surface (30 min) have better fluidity. It is worth noting that the heat flux of the worn surface is 86.47 %similar to 103.63 % higher than that of the hydrophilic surface at high subcooling (similar to 17 K), due to better wear resistance provided by the micro pyramid structure. These findings provide a theoretical and experimental guidance for the development of condensing surfaces to enhance heat transfer.
引用
收藏
页数:14
相关论文
共 50 条
  • [41] A review of methods for preparing superhydrophobic surfaces on paper
    Jiang, Shangjie
    Zhou, Shisheng
    Du, Bin
    Luo, Rubai
    PROCEEDINGS OF THE 2019 14TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA 2019), 2019, : 316 - 323
  • [42] A robust and versatile superhydrophobic coating: Wear-resistance study upon sandpaper abrasion
    Li, Meng
    Li, Yu
    Xue, Fang
    Jing, Xinli
    APPLIED SURFACE SCIENCE, 2019, 480 : 738 - 748
  • [43] Fabrication and wear protection performance of superhydrophobic surface on zinc
    Wan, Yong
    Wang, Zhongqian
    Xu, Zhen
    Liu, Changsong
    Zhang, Junyan
    APPLIED SURFACE SCIENCE, 2011, 257 (17) : 7486 - 7489
  • [44] Fabrication of Impact-Resistant and Wear-Recoverable Superhydrophobic Surfaces
    Xue, Chao-Hua
    Wang, Hui-Di
    Ji, Zhan-You
    Guo, Xiao-Jing
    Liu, Bing-Ying
    Wu, Yue
    Jia, Shun-Tian
    ACS OMEGA, 2019, 4 (22): : 19756 - 19764
  • [45] Two-Level Copper Oxide Nanostructed Surfaces for Condensation Heat Transfer
    Lee, Jonggyu
    Shao, Bowen
    Won, Yoonjin
    PROCEEDINGS OF THE 17TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS (ITHERM 2018), 2018, : 12 - 18
  • [46] Dropwise condensation heat transfer on vertical superhydrophobic surfaces with wavy-shaped gradient microgrooves in humid air
    Yang, Ranyue
    Gao, Shangwen
    Zhu, Yifeng
    Yu, Siyong
    Deng, Zilong
    APPLIED THERMAL ENGINEERING, 2025, 270
  • [47] Effects of chloride ion concentration on porous surfaces and boiling heat transfer performance of porous surfaces
    Xu, Nian
    Yu, Xinyu
    Liu, Zilong
    Zhang, Tianxu
    Chu, Huaqiang
    ENERGY, 2024, 294
  • [48] On the Durability and Wear Resistance of Transparent Superhydrophobic Coatings
    Bayer, Ilker S.
    COATINGS, 2017, 7 (01):
  • [49] Droplet Jumping on Superhydrophobic Copper Oxide Nanostructured Surfaces
    Lee, Jonggyu
    Shao, Bowen
    Won, Yoonjin
    IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, 2019, 9 (06): : 1075 - 1081
  • [50] Recent advances and strategies in mechanical stability of superhydrophobic surfaces
    Guo, Haoran
    Wang, Youqiang
    Zhang, Haiyang
    An, Kai
    PROGRESS IN ORGANIC COATINGS, 2024, 194