Boiling heat transfer enhancement using engineered surfaces

Abstract

The widespread use of boiling heat transfer in various applications is due to high heat transfer coefficients associated with the phase change from liquid to vapor. Boiling heat transfer coefficients can be further enhanced by modifying the surface conditions of the heated surface at which boiling occurs. The objective of this research is to fabricate textured surfaces with electrical discharge machining (EDM) and to investigate the enhancement in pool boiling heat transfer, concerning machining parameters. It was found that the boiling performance of the surface correlates with the EDM machining parameters with a significant enhancement in heat transfer.