Immersion Cooling of High-power Electronics Pool Boiling Videos

The experimental pool boiling facility at the Institute for Space and Nuclear Power Studies (ISNPS) has investigated investigating immersion cooling with dielectric liquids on porous graphite and finned surfaces with the application toward electronics cooling applications. Systematic investigations are carried out using different boiling flat and finned surfaces (copper and porous graphite), at different liquid subcoolings (0° K = ΔTsub = 30° K), and at different surface orientations (0° = q = 180°), using both FC-72 (C6F14) and HFE-7100 (C4F9OCH3) dielectric liquids. A high quality digital camera and a high quality digital video camera record the boiling at the surface in experiments as they run. This boiling visualization greatly aid the study of the hydrodynamics of the boiling process from the various surfaces used.

Copper Finned Surfaces

2 mm Pins

3 mm Pins

5 mm Pins

POCO Graphite Surfaces

FC-72 (C6F14) dielectric liquid

HFE-7100 (C4F9OCH3) dielectric liquid