Evaporation heat transfer enhancement by a laser-textured heterogeneous surface

Chin Chi Hsu*, Hui Chung Cheng, Tien Li Chang*, Ping Hei Chen


研究成果: 雜誌貢獻期刊論文同行評審

5 引文 斯高帕斯(Scopus)


Numerous studies have explored the influence of surface wettability on liquid vapor heat transfer through surface modification; especially when the surface can be modified with heterogeneous wettability. Herein the heterogeneous wettability surfaces with the designated patterns can be created on surfaces only in a few seconds after laser irradiation. LSCM images indicated the surfaces with laser irradiation became rougher and provided more nucleation sites. In this study, experiments for evaporation behaviors of water droplet were performed on picosecond laser-textured heterogeneous copper surfaces. The CCD images revealed that bubble dynamics play an important role in droplet evaporation on heated surfaces. Based on the behavior of bubble coalescence and departure, the heterogeneous laser-textured surface exhibited superior evaporation efficiency.

期刊Colloids and Surfaces A: Physicochemical and Engineering Aspects
出版狀態已發佈 - 2021 11月 5

ASJC Scopus subject areas

  • 表面和介面
  • 物理與理論化學
  • 膠體和表面化學


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