Subcooled water boiling on a microheater under conditions of pulsed heat release
A.S. Surtaev1,2, V.S. Serdyukov1,2, I.P. Malakhov1,2, M.V. Timoshevskiy1,2, A.S. Safarov1,3
1Novosibirsk State University, Novosibirsk, Russia
2Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
3Melentiev Energy Systems Institute SB RAS, Irkutsk, Russia
Keywords: pulsed heating, boiling, subcooled liquid, bubble evolution, high-speed visualization, microheater
Abstract
The paper deals with the experimental study of the process of subcooled liquid boiling 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 degree of liquid subcooling in the ranges of 11-32 MW/m2 and 50 - 75 K, respectively, were obtained. The nucleation temperature was calculated for the studied regimes using the COMSOL Multiphysics software.
|
