Pool boiling from a super-water-repellent(SWR) surface with checkered and spotted patterns has been studied experimantally. The heat transfer surface is a copper with the SWR coating of checkered and spotted patterns. The domain of SWR acts as nucleation sites and, therefore, bubble nucleation starts at very low superheating. In lower heat flux, bubbles with coherent size are generated on the SWR domain of the heat transfer surface. These bubbles depart from the heat transfer surface when the contact line reaches the boundary of SWR domain. Nucleate boiling with this surface was enhanced by seven times compared with the normal copper surface. However, for higher heat flux the heat transfer performance of patterned surfaces become worse and its the critical heat flux was smaller than that of normal copper surface.
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