Experiments to understand bubble base evaporation mechanisms and heat transfer on nano-coated surfaces of varying wettability under nucleate pool boiling regime
P Kangude, A Srivastava - International Journal of Multiphase Flow, 2022 - Elsevier
Absolute surface wettability effects on the characteristics of nucleate pool boiling heat
transfer under saturated conditions are investigated with water as working fluid. Wettability of
the base surface (ITO-coated sapphire) is modified by coating 60 nm thick SiO 2 film using
different thin film deposition techniques. In this way, two surfaces with modified wettability
(30 o and 65 o static contact angles) have the same surface chemistry with negligible
variation in surface roughness, while the base surface itself acts as the third surface with 90 …
transfer under saturated conditions are investigated with water as working fluid. Wettability of
the base surface (ITO-coated sapphire) is modified by coating 60 nm thick SiO 2 film using
different thin film deposition techniques. In this way, two surfaces with modified wettability
(30 o and 65 o static contact angles) have the same surface chemistry with negligible
variation in surface roughness, while the base surface itself acts as the third surface with 90 …
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