Heat transfer surface having a high boiling heat transfer - coefficient

摘要

A heat exchanger comprises a heat conductive base member, for transferring heat from a source on one side to a boiling fluid on the other, on which are spaced fins each having a base portion connected to the base member and a trip bent over toward, and overlying the adjacent fin, the gaps between adjacent tip portions being less than the spaces between their base portions to form a re-entrant shaped cavity sufficient to promote nucleate boiling.