抄録
Boiling feature on a hydrophilic surface with hydrophobic coating of spotted pattern has been studied. Bubble nucleation begins at hydrophobic region at low superheating and an overshoot of superheating in boiling incipience is not observed. At low heat flux, generated bubble size depends on the spotted size. The hydrophobic coat region is effective in the low superheat region. The critical heat flux can be increased by combining the hydrophobic surface and hydrophilic surface.
