Nanotechnology on Boiling Heat Transfer for a Next-generation Cooling Technology

Nanotechnology has suggested a novel approach for the breakthrough of typical cooling technology especially
on boiling heat transfer. As a hot issue in heat transfer fields, the feasible methods based on nanoscale structure
creations can be concretized with regard to the compatibility for the control of morphological surface roughness
and consequential wettability characteristics. Those two principal factors, which are definitely confirmed
to dominate physics on boiling heat transfer, are controlled by nanoscale surface treatment techniques and it
finally results in innovative improvements to effectively dissipate thermal-load from hot or high heat generating
components according to the roughened and the water-attractive characteristics. Densely distributed nanowires
as well as hierarchical morphologies via nano-structures and wettability control techniques on local area will
be briefly demonstrated regarding the effectiveness of surface manipulation and the improvement of cooling
performances. Progressive research on structural robustness and stability would be required in aspect of reliable
performance and life-time of actual applications.