In this study, numerical simulations of a vapor bubble in subcooled pool boiling have been performed. The applied numerical procedure coupling level-set function with moving mesh method has been validated by comparing the results of bubble-growth history including bubble departure diameter with data from experiments. The predictions of bubble dynamics and heat transfer for various subcoolings a...

The phenomena of microlayer formation and its dynamic characteristics during the nucleate pool boiling regime have been widely investigated in past. However, experimental works on real-time dynamics flow conditions are highly scarce. present work is an attempt to address this lacuna concerned with developing a fundamental understanding growth process single vapour bubble under conditions. Boili...

This work introduces the use of machine vision in the massive bubble recognition process, which supports the validation of boiling models involving bubble dynamics, as well as nucleation frequency, active site density and size of the bubbles. The two algorithms presented are meant to be run employing quite standard images of the bubbling process, recorded in general-purpose boiling facilities. ...

Abstract An experimental study of the pressure drop under subcooled flow boiling refrigerant R141b in a system with two slotted microchannels was carried out. A copper block 2 mm wide, 0.4 deep, and 16 long used as an section for testing. The mass rate varied range from 1 to 4 g/s, initial subcooling 20°C 50°C. Experimental data show significant decrease when critical heat flux is reached. are ...