Abstract: The article describes the study of heat transfer during pool boiling on minifins surface
coated with nanostructure. This is a molecular level technology used in engineering
or mechanical factory. A surface with carbon nanotubes (CNTs) is highly effective in
reducing the superheat incipience and enhancing both the heat flux and heat transfer
coefficient. The paper focuses on the comparison of the surfaces, on which pool boiling
heat transfer occurs, i.e., on minifins coated with carbon nanotubes (MF+N) with
surfaces formed by sintering the woven copper wire mesh to the minifins tips (MF+M)
and with plain minifins surface (MF). The experiments were carried out for two boiling
fluids: water and ethyl alcohol. The purpose of the presented study was to find out which
of those tested surfaces and fluids could be the best alternative for use in the cooling
of electronic devices and which surfaces could be used as thermosyphon or heat pipe
evaporator.
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