Patent ID: 6453852
Filing Date: 2002-09-24
Classification: F22B

Abstract:
A heat recovery apparatus comprising:a duct for receiving a flow of fluid in a flow direction; a heat extraction member disposed inside the duct, the heat extraction member including heat extraction elements for extracting heat from the flow of fluid, the heat extraction elements being distributed over a heat extraction cross section of the duct on which the heat extraction member is disposed so as to occupy a heat extraction portion of the heat extraction cross section and to leave a remaining portion of the heat extraction cross section unoccupied by the heat extraction elements; and a duct burner disposed inside the duct, the duct burner comprising duct burner elements being distributed over a duct burner portion of a duct burner cross section of the duct on which the duct burner is disposed so as to leave a remaining portion of the duct burner cross section unoccupied by the duct burner elements, wherein the heat extraction portion when projected in the flow direction onto the duct burner cross section substantially does not overlap with the duct burner portion but overlaps with the remaining portion of the duct burner cross section unoccupied by the duct burner elements, wherein the duct burner cross section is disposed at least partially downstream of the heat extraction cross section.