Study on mist cooling of a superheated surface (Effects of surface position, size and structure on heat transfer enhancement and control)

摘要

In order to pursue the effects of surface position, size and structure on the enhancement and control of mist cooling heat transfer, detailed experiments have been conducted regarding the boiling and evaporation of liquid film formed on circular superheated surfaces with smooth, concentric grooves and radial grooves. These results indicate that a vertical surface is more efficient in the enhancement of heat transfer than a horizontal one, a smaller surface produces higher heat flux, and the grooved surface is more effective in the enhancement and stability of heat transfer.