Flow boiling of water on nanocoated surfaces in a microchannel

Details Flow boiling of water on nanocoated surfaces in a microchannel Flow boiling of water on nanocoated surfaces in a microchannel

2010-08-27

arxiv.org/abs/1008.4696v1

FEDSM-ICNMM2010-30478

Physics

Fluid Dynamics

Papers in ICNMM10 conference, Montreal, Canada

Scientific paper

Experiments were performed to study the effects of surface wettability on flow boiling of water at atmospheric pressure. The test channel is a single rectangular channel 0.5 mm high, 5 mm wide and 180 mm long. The mass flux was set at 100 kg/m2 s and the base heat flux varied from 30 to 80 kW/m2. Water enters the test channel under subcooled conditions. The samples are silicone oxide (SiOx), titanium (Ti), diamond-like carbon (DLC) and carbon-doped silicon oxide (SiOC) surfaces with static contact angles of 26{\deg}, 49{\deg}, 63{\deg} and 103{\deg}, respectively. The results show significant impacts of surface wettability on heat transfer coefficient.

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