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US 5,845,481 AGranted
Combustion turbine with fuel heating system
AssigneeWestinghouse Electric Corp.
InventorsMichael S. Briesch, Jorge J. Alba
Life of this patent
Estimating the term…
Abstract
The combustion turbine system comprises a fuel line connected to the combustor with a portion of the fuel line being disposed in heat transfer relationship with the exhaust gas from the combustion turbine so that the fuel may be heated by the exhaust gas prior to being introduced into the combustor. The system may also comprise a fuel by-pass control system for mixing unheated fuel with the heated fuel to control the temperature of the fuel being introduced into the combustor.
Claims26
A combustion turbine system comprising:
- a compressor for compressing air for combustion;
- a combustor connected to said compressor for receiving compressed air from said compressor and for receiving fuel with said compressed air and said fuel being combusted therein and producing a combustion gas;
- a turbine connected to said combustor and arranged to receive said combustion gas for driving said turbine with said combustion gas being exhausted from said turbine;
- a fuel line connected to a source of said fuel and connected to said combustor with a portion of said fuel line being disposed in heat transfer relationship with said combustion gas thereby heating said fuel prior to being introduced into said combustor;
- and
- a controller for controlling the amount of heat imparted by said combustion gas to the fuel prior to said fuel being introduced into said combustor to maintain at least a portion of said fuel at a substantially elevated preselected temperature relative to ambient conditions, within a given temperature range.
3 more elements
A method of operating a combustion turbine system comprising:
- combusting air and fuel thereby generating a combustion gas;
- directing said combustion gas through a turbine for driving said turbine;
- exhausting said combustion gas from said turbine, and directing said combustion gas in heat transfer relationship with a portion of a fuel line thereby heating said fuel therein;
- controlling the amount of heat imparted by said combustion gas to the fuel prior to said fuel being introduced into said combustor to maintain at least a portion of said fuel at a substantially elevated preselected temperature relative to ambient conditions, within a given temperature range;
- and
- conducting said heated fuel into said combustor.
3 more elements
Dependencies are inferred from the claim text.