HEAT TRANSFER TUBE, AIR-HEATED EVAPORATOR AND METHOD FOR PRODUCING A HEAT TRANSFER TUBE�

摘要

ABSTRACT HEAT TRANSFER TUBE, AIR-HEATED EVAPORATOR AND METHOD FOR PRODUCING A HEAT TRANSFER TUBE A heat transfer tube (2), in particular a finned tube, for an air-heated evaporator (1) for heating and/or evaporating cryogenic fluids, having a tube section (8) and a coating (15) which is provided on the outer side of the tube section (8) and has a hydrophilic portion (16) and a hydrophobic portion (17), wherein the hydrophilic portion (16) forms, in the coating (15), seed points (18), which are peripherally enclosed by the hydrophobic portion (16), for condensing air moisture thereon and wherein the seed points (18) have a size of less than 100 nm. FIGURE 6