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[75140] Artykuł: Enhanced surfaces used in research on flow boiling heat transfer in minichannelsCzasopismo: Materials Research Proceedings Tom: 5, Strony: 154-159ISSN: 2474-3941 ISBN: 978-1-945291-80-7 Wydawca: MATERIALS RESEARCH FORUM LLC, 105 SPRINGDALE LN, MILLERSVILLE, PA 17551 USA Opublikowano: Lipiec 2018 Seria wydawnicza: Materials Research Proceedings Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper DOI Web of Science Keywords: Laser Texturing  Vibration-Assisted Laser Texturing  Electromachining Texturing  Porous Surface  Flow Boiling  Heat Transfer  Minichannel   |
This paper reviews enhanced surfaces used to study boiling heat transfer in minichan-nels with rectangular cross-sections. Experiments were conducted for refrigerants flowing along a vertical minichannel, asymmetrically heated by one of the enhanced surfaces. The enhanced surfaces used in the experiments were the following: laser textured and vibration-assisted laser textured surfaces with regular cavities, electro-discharge machined surfaces with irregular cavities, fibrous surfaces with capillary-porous structures, and powder-coated surfaces. Heat transfer efficiency was evaluated based on local heat transfer coefficients calculated at the heated surface-fluid interface in the minichannel. Vibration-assisted laser surface texturing provided the most efficient heat transfer compared to the other enhanced surfaces and the smooth surface.