Study on Condensation Heat Transfer Enhancement via Synergistic Regulation of Micro/Nano Structures on Superhydrophobic Surfaces

Xie Huairun; He Jiacheng; Chen Jianyong; Chen Ying

doi:10.12465/issn.0253-4339.20260124001

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Study on Condensation Heat Transfer Enhancement via Synergistic Regulation of Micro/Nano Structures on Superhydrophobic Surfaces

更新时间：2026-05-21

- Study on Condensation Heat Transfer Enhancement via Synergistic Regulation of Micro/Nano Structures on Superhydrophobic Surfaces
- Journal of Refrigeration Pages: 1-9(2026)
- 作者机构：
  
  1.广东工业大学材料与能源学院广州 510006
  2. 广东省功能软凝聚态物质实验室广州 510006
- 作者简介：
- 基金信息：
  
  the National Natural Science Foundation of China(52436003)
- DOI：10.12465/issn.0253-4339.20260124001
  CLC： TB61⁺1;TK124;O647.6
- Received：24 January 2026，
  
  Revised：2026-02-17，
  
  Accepted：12 March 2026，
  
  Online First：21 May 2026，
- 稿件说明：
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谢淮润,何嘉诚,陈健勇等.超疏水表面微纳结构协同强化冷凝传热研究[J].制冷学报,

Xie Huairun,He Jiacheng,Chen Jianyong,et al.Study on Condensation Heat Transfer Enhancement via Synergistic Regulation of Micro/Nano Structures on Superhydrophobic Surfaces[J].Journal of Refrigeration,
谢淮润,何嘉诚,陈健勇等.超疏水表面微纳结构协同强化冷凝传热研究[J].制冷学报, DOI：10.12465/issn.0253-4339.20260124001.

Xie Huairun,He Jiacheng,Chen Jianyong,et al.Study on Condensation Heat Transfer Enhancement via Synergistic Regulation of Micro/Nano Structures on Superhydrophobic Surfaces[J].Journal of Refrigeration, DOI：10.12465/issn.0253-4339.20260124001.

摘要

通过构建微纳米结构表面来调控液滴行为是强化冷凝传热的有效方法，现有研究大多聚焦创新微结构或纳结构来调控液滴弹跳行为，鲜有讨论2种结构的适配关系对冷凝传热的影响。本文通过调控制备工艺参数，获得了相同微结构、不同纳结构和相同纳结构，不同微结构的3片CuO纳米片-微槽道超疏水表面，通过对比两两表面的液滴动力学行为，探索表面强化冷凝传热的机制。研究结果表明：提高微结构参数可促进液滴的合并弹跳，有效减小钉扎液滴尺寸；降低纳结构参数可增加成核位点，降低Cassie态液滴的临界尺寸。微纳结构的协同调控可提高一次拉普拉斯压力

Δp1

和二次拉普拉斯压力

Δp2

，获得更小的临界液滴弹跳直径，提高弹跳频率，在过冷度1~16 K之间提升冷凝传热系数12%~41%。这种调控微纳结构协同作用的方法为冷凝表面传热强化提供了新的思路。

Abstract

Constructing micro/

nanostructured surfaces to manipulate droplet behavior is an effective approach for enhancing condensation heat transfer. However， existing studies rarely discuss the matching effect of micro- and nano-structures. In this study， three CuO nanosheet-microchannel superhydrophobic surfaces （with identical microstructures and different nanostructures， and vice versa） were used to investigate the condensate droplet dynamics of paired surfaces and the heat transfer enhancement mechanism. The results show that increasing the microstructure parameters promotes droplet coalescence bouncing and reduces the size of pinned droplets， whereas decreasing the nanostructure parameters increases the number of nucleation sites and lowers the critical size of Cassie-state droplets. Synergistic regulation of micro/nano structures enhances both the primary Laplace pressure （

Δp1

） and the secondary Laplace pressure （

Δp2

）， thereby achieving a smaller critical bouncing diameter and higher bouncing frequency. The condensation heat transfer coefficient was enhanced by 12%-41% at subcooling temperatures of 1-16 K. This method provides new insights into condensation heat transfer enhancement via micro/nano-structure synergy.

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references

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