Behavior of air bubbles during subcooled water boiling

Model of the heat exchange in boiling emulsions with low-boiling disperse phase at the solid wall

“…The value of the exponent α is found by final according to a priori accepted views about important characteristics of nucleation under the influence of external pulses. For example, for 0   , when droplets are gas bubbles critical size [6,7], the relation (6) is applicable for aqueous emulsions. The other limiting case 1   corresponds to the emulsions containing organic liquids [8], where there are no gas bubbles.…”

The dynamics of a vapour bubble growth under the boiling of a subcooled liquid in low volumes

“…Vapour bubbles do not go beyond the viscous sub layer. Normal bubbles "evacuation" [23] from the heating wall with their going beyond the viscous sublayer is missing. Ejection phenomenon of numerous small (10-80 mm) bubbles (called "microbubble emission") at the subcooled boiling water under the high heat fluxes has been explained by releasing of the rest of air on the superheated surface and in the boundary layer of the liquid [24].…”

“…Modeling representations of the boiling of the subcooled water under forced flow have been studied and also a comprehensive analysis has been conducted [18][19][20][21][22][23][24]. It is found that at subcooling temperatures over 50 • the hydraulic resistance coefficients equal under the boiling and forced convection of a single-phase liquid at non-isothermal flow.…”