Boiling Heat Transfer On Biphilic Surfaces With Arrays Of Grooves

Experiments were carried out on biphilic surfaces made using technology consisted in the deposition (105℃) of fluorinated methoxysilane on a copper surface with arrays of grooves preliminarily created by laser ablation, as a result of which deposition the grooves became superhydrophobic. Grooves wer...

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Veröffentlicht in:E3S web of conferences 2024, Vol.578, p.1003
Hauptverfasser: Vladimirov, Victor, Khmel, Sergey, Chinnov, Evgeny
Format: Artikel
Sprache:eng
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Zusammenfassung:Experiments were carried out on biphilic surfaces made using technology consisted in the deposition (105℃) of fluorinated methoxysilane on a copper surface with arrays of grooves preliminarily created by laser ablation, as a result of which deposition the grooves became superhydrophobic. Grooves were two types: parallel grooves and groove lattice. Size of grooves was 30-43 um, pitch for parallel grooves was 1-1,5 mm and for grove lattice – 1 mm. The experiments were carried out on distilled water at atmospheric pressure. For all surfaces, a significant intensification of heat transfer has been achieved, compared with a smooth copper surface. It was shown, that boiling heat transfer depend only from pitch between grooves for both types of grooves. Dependence of heat transfer coefficient from size of grooves was not observed. Most efficient type of surfaces was groove lattice with smallest pitch.
ISSN:2267-1242
2267-1242
DOI:10.1051/e3sconf/202457801003