Concentric catalytic combustor
AssigneeSiemens Westinghouse Power Corporation
InventorsGerald Bruck, Mary Alvin
Life of this patent
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Abstract
A catalytic combustor (28) includes a plurality of concentric tubular pressure boundary elements (46). The pressure boundary elements are arranged to form a first annular space (e.g., 50) conducting a first fluid flow (e.g., 60) and a second annular space (e.g. 49), separate from the first annular space, conducting a second fluid flow (e.g., 58). A catalytic material (32) is disposed on a surface (e.g., 64) of at least one of the pressure boundary elements and exposed to at least one of the fluid flows.
Claims15
A catalytic combustor comprising:
- a plurality of concentric tubular pressure boundary elements forming a first annular space conducting a first fluid flow and a second annular space separate from the first annular space conducting a second fluid flow;
- and
- a catalytic material disposed on a surface of at least one of the pressure boundary elements and exposed to at least one of the fluid flows.
The catalytic combustor of claim 2, wherein:
- the first fluid flow comprises a combustible fluid;
- and
- the second fluid flow comprises a cooling fluid containing no combustible fuel.
A catalytic combustor comprising:
- a plurality of catalytic combustion modules, each module comprising a plurality of concentric tubular pressure boundary elements forming a first annular space conducting a first fluid flow and a second annular space separate from the first annular space and conducting a second fluid flow and a catalytic surface disposed in at least one of the annular spaces and exposed to the flow conducted therethrough;
- one of the plurality of the modules disposed along a central axis of the combustor;
- remaining ones of the plurality of modules circumferentially disposed about the central axis radially outward of the one of the plurality of modules;
- and
- each module comprising a pilot burner disposed in a central region of the respective module.
A catalytic combustor comprising:
- a plurality of catalytic combustion modules, each module comprising a plurality of concentric tubular pressure boundary elements forming a first annular space conducting a first fluid flow and a second annular space separate from the first annular space conducting a second fluid flow and a catalytic surface disposed in at least one of the annular spaces and exposed to the flow conducted therethrough;
- and
- each module circumferentially disposed about a central axis radially outward of a central region of the combustor.
Dependencies are inferred from the claim text.