Open AccessPool boiling performance of laser-textured surfaces with time-dependent wettability
Author(s) -
Matevž Zupančič,
Peter Gregorčič,
Iztok Golobič
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2116/1/012004
Subject(s) - wetting , boiling , materials science , laser , chemical engineering , environmentally friendly , work (physics) , nanotechnology , composite material , chemistry , mechanical engineering , optics , organic chemistry , ecology , physics , biology , engineering
In last years, the direct laser texturing proved as environmentally friendly, scalable, flexible and efficient approach for surface functionalisation by creating appropriate surface features for enhanced boiling performance. When metal surface is laser-processed in open (oxygen-containing) atmosphere, it oxidizes and becomes (super)hydrophilic. However, it is well known that the wettability transition towards (super)hydrophobic state occur, if such a surface is exposed to the presence of hydrophobic contaminants. When water is used as a working fluid, this wettability transition can have a significant effect on nucleate boiling performance, which is investigated in this work.