The heat transfer behaviour of hydrophobic surfaces presents a fascinating and intricate phenomenon, particularly concerning the early formation of bubbles well before reaching the critical temperature. Unlike conventional surfaces, hydrophobic surfaces possess unique properties that repel water and promote the formation of a stable air layer when exposed to a liquid medium. This air layer acts as a thermal insulator, significantly reducing the direct contact between the liquid and the surface, thus impeding heat transfer.
A fascinating question and I'm afraid that I've got no experience of it. However, I would approach the problem as a combined heat and mass transfer problem as mass transfer is being inhibited. Will be interested to follow this discussion. Would be great in condensers where wetting would be inhibited but the condensing would still occur.