HEAT-TRANSFER DEVICE AND GAS TURBINE COMBUSTOR WITH SAME

摘要

Disclosed is a heat-transfer device adapted to enhance uniformity of cooling characteristics to be given to a heat transfer object, and thereby to extend a life of the heat transfer object. The heat-transfer device 20 for facilitating heat exchange between combustion air 2 (heat transfer medium) flowing along an outer surface of a combustor liner 8 (heat transfer object), and the combustor liner 8, the heat-transfer device 20 including: at least one longitudinal vortex generating device 22 protruding toward a annular passage 11 (flow passage) of the combustion air 2 and formed to generate a longitudinal vortex E with a central axis in a flow direction of the combustion air 2, and stir the combustion air 2 flowing in the annular passage 11; and at least one radiator fin 24 provided in a region A on the outer surface of the combustor liner 8, the region A being where a flow of the vortex E, on a swirling plane thereof, that are generated by the vortex generating device 22 is directed from a side of the combustor liner 8, toward a side of a flow sleeve 10, the fin 24 exchanging heat with the combustion air 2 stirred by the vortex generating device 22.