Multi-purpose Thermal Test Vehicle for Experimental Investigation on Pumped Two-Phase Cooling

Flow boiling heat transfer to water of different cooler surface topologies is experimentally investigated. To have the possibility for investigations of new electronic packages that supports cooling solutions by two-phase flow boiling, a multipurpose closed two-phase flow boiling cooling test stand for rapid experimental characterization and parameter variation is designed. The designed test vehicle holds interchangeable, plug-in heating module that offers the possibility to investigate different cooler structures and surface topologies/chemistry to improve the formation and release of small bubbles. In order to have a proof of concept for the test stand and to show its reproducible to those given in the literature, initially, the investigation is limited to a plain-and dimpled-surface and a pin fin and finned cooler structure in the mm range.