Subcooled water boiling on a microheater under conditions of pulsed heat release

The paper deals with the experimental study of the process of subcooled liquid boiling up on a transparent microheater with pulsed heat release. Dependences of the maximum bubble diameter, rates of their growth and times of boiling incipience on the heat flux density and liquid subcooling in the ranges of 11–32 MW/m 2 and 50–75 K, respectively, were obtained. The nucleation temperature was calculated for the studied regimes using the COMSOL Multiphysics software.