The paper presents the results of experimental research on pool boiling heat transfer dielectric liquid FC-72. Measurements were made at atmospheric pressure open surfaces with microchannels. Heat surfaces, in form parallel milled microchannels, copper. rectangular cross-sectional microchannels 0.2 to 0.5 mm deep and 0.4 wide. compared a smooth flat surface, provided five-fold increase coeffici...

A simplified physical model of a single bubble growth during nucleate pool boiling was developed. The able to correlate the experimentally observed data bubble’s time and its radius evolution with use appropriate input parameters. calculated values separated heat fluxes from heater wall, thermal boundary layer, bulk liquid gave us new insight into complex mechanisms process. layer found supply ...