Open AccessHeat transfer on a capillary-porous surface during evaporation / boiling of a thin layer of liquid at low pressures
Author(s) -
В. И. Жуков,
А. Е. Брестер,
А. Н. Павленко,
A S Butko,
D A Shvetsov
Publication year - 2020
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 - 10.1088/1742-6596/1683/2/022086
Subject(s) - boiling , evaporation , capillary action , heat transfer , nucleate boiling , materials science , bubble , porosity , dodecane , thermodynamics , bubble point , chemistry , heat transfer coefficient , composite material , mechanics , nuclear chemistry , physics
This paper presents experimental data on heat transfer during the evaporation/boiling of n-dodecane on a surface with a capillary-porous coating in a wide pressure range. The obtained data are compared with data on heat transfer during the evaporation/boiling of n-dodecane on a smooth surface. It was found that the regime of bubble boiling occurs on a coated surface at lower pressures than on a smooth surface. It was found that enhanced heat transfer during evaporation/boiling on a capillary-porous surface as compared with a smooth surface is observed only under conditions of bubble boiling ( P ≥ 10 3 Pa).