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US 2013/0340404 A1Published application
Hot egr driven by turbomachinery
AssigneeGeneral Electric Company
InventorMichael John Hughes
Life of this patent
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Abstract
In one embodiment, a system includes a turbine combustor of a turbine system with the turbine combustor at least partially enclosed within a compressor discharge casing. The turbine system also includes an exhaust gas recovery system that includes an exhaust gas recirculation duct. The exhaust gas recirculation duct is configured to recirculate exhaust gas from a downstream end of the turbine combustor to an upstream end of the turbine combustor. This exhaust gas recirculation duct is entirely enclosed within the compressor discharge casing.
Claims20
A system, comprising:
- a turbine combustor of a turbine system, wherein the turbine combustor is at least partially enclosed within a compressor discharge casing of the turbine system;
- and
- an exhaust gas recovery system, comprising an exhaust gas recirculation duct configured to recirculate exhaust gas from a downstream end of the turbine combustor to an upstream end of the turbine combustor, wherein the exhaust gas recirculation duct is entirely enclosed within the compressor discharge casing.
A system, comprising:
- a turbine combustor of a turbine system, wherein the turbine combustor is at least partially enclosed within a compressor discharge casing of the turbine system;
- and
- an exhaust gas recovery system, comprising:
- an exhaust gas recirculation duct configured to recirculate exhaust gas from a downstream end of the turbine combustor to an upstream end of the turbine combustor;
- a cooling stage configured to decrease a temperature of the exhaust gas recirculated through the exhaust gas recirculation duct;
- and
- a pressure increasing device configured to increase a pressure of the exhaust gas recirculated through the exhaust gas recirculation duct;
- wherein the exhaust gas recirculation duct, cooling stage, and pressure increasing device are all entirely enclosed within the compressor discharge casing.
5 more elements
A system, comprising:
- a turbine combustor of a turbine system, wherein the turbine combustor is at least partially enclosed within a compressor discharge casing of the turbine system;
- an exhaust gas recovery system comprising an exhaust gas recirculation duct configured to recirculate exhaust gas from a downstream end of the turbine combustor to an upstream end of the turbine combustor, wherein the exhaust gas recirculation duct is entirely enclosed within the compressor discharge casing;
- a compressor of the turbine system, wherein the compressor is coupled to a rotating shaft of the turbine system such that rotation of the rotating shaft causes blades of the compressor to rotate to deliver compressed air from the compressor to a head end of the turbine combustor;
- and
- a turbomachinery stage comprising a rotating stage and a stationary stage, both of which are at least partially disposed within the exhaust gas recirculation duct, wherein the rotating stage is coupled to the rotating shaft of the turbine system such that rotation of the rotating shaft causes the rotating stage to rotate with respect to the stationary stage to cause the exhaust gas to be recirculated through the exhaust gas recirculation duct.
2 more elements
Dependencies are inferred from the claim text.