A METHOD AND A DEVICE FOR HEAT RECOVERY FROM FLUE GASES

摘要

A device for extracting heat energy from flue gases produced through a combustion of fuel in a combustor (1) of a power plant in a part of the power plant separated from the combustor, comprises a conduit (6) for transport of flue gases along heat exchange surfaces (16) inside which a cooling medium is intended to be circulated in an arrangement (8, 9, 10) for transferring heat from the flue gases to said medium. The device further comprises means (17) arranged to provide the room (12) surrounding said heat exchange surfaces in the flue gas conduit with a particle-like material (15) for transferring heat energy from the flue gases passing to said heat exchange surfaces through said material.