Transportphenomena in subcooled flow boiling

Abstract

Subcooled boiling has been subject of extensive research studies in the literature. So far, the approach of studying the phenomena of subcooled boiling has rather been an integral method by measuring the heat transport from the wall to the liquid and by following the growth and collapse of the bubbles. However, little is known about the heat transport at the phase interface between the surface of the bubbles and the subcooled liquid. Experimental attempts to study the transport phenomena around the bubble surface quantitatively have been performed by using the holographic interferometry, an optical method, which works in an inertialess and non-invasive way. The conventional holographic interferometry has somewhat been modified by applying the finite fringe method. With this technique interesting insights could be gained and precise quantitative data could be evaluated.