Power generation system exhaust cooling
AssigneeGeneral Electric Company
InventorsParag Prakash Kulkarni, Lewis Berkley Davis, Jr., Robert Joseph Reed
Life of this patent
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Abstract
A power generation system according to an embodiment includes: a gas turbine system including a compressor component, a combustor component, and a turbine component; an airflow generation system coupled to an expander shaft downstream of the gas turbine system for drawing in a flow of ambient air through an air intake section; a mixing area for receiving an exhaust gas stream produced by the gas turbine system; a flow directing system for directing the flow of ambient air generated by the airflow generation system to the mixing area to reduce a temperature of the exhaust gas stream; and an exhaust processing system for processing the reduced temperature exhaust gas stream.
Claims15
An airflow control system for a gas turbine system, comprising:
- an airflow generation system for attachment to a rotatable expander shaft of a gas turbine system, downstream of the gas turbine system, for drawing in a flow of ambient air through an air intake section;
- a mixing area for receiving an exhaust gas stream produced by the gas turbine system;
- and
- a flow directing system for directing the flow of ambient air drawn in by the airflow generation system to the mixing area to reduce a temperature of the exhaust gas stream;
- wherein the airflow generation system comprises a fan which comprises an inner radial stage for passing the exhaust gas stream produced by the gas turbine system to the mixing area;
- and an outer radial stage for drawing in the flow of ambient air through the air intake section;
- and a moving seal on the fan for preventing the exhaust gas stream from entering the air intake section.
A turbomachine system, comprising:
- a gas turbine system including a compressor component, a combustor component, and a turbine component;
- a fan coupled to an expander shaft of the gas turbine system, downstream of the gas turbine system, for drawing in a flow of ambient air through an air intake section, wherein the fan comprises an inner radial stage for passing the exhaust gas stream produced by the gas turbine system to the mixing area, and an outer radial stage for drawing in the flow of ambient air through the air intake section;
- and a moving seal on the fan for preventing the exhaust gas stream from entering the air intake section;
- a mixing area for receiving an exhaust gas stream produced by the gas turbine system;
- and
- a flow directing system for directing the flow of ambient air drawn in by the airflow generation system to the mixing area to reduce a temperature of the exhaust gas stream.
A power generation system, comprising:
- a gas turbine system including a compressor component, a combustor component, and a turbine component;
- a shaft driven by the turbine component;
- an electrical generator coupled to the shaft for generating electricity;
- a fan coupled to an expander shaft of the gas turbine system, downstream of the gas turbine system, for drawing in a flow of ambient air through an air intake section, wherein the fan comprises an inner radial stage for passing the exhaust gas stream produced by the gas turbine system to the mixing area, and an outer radial stage for drawing in the flow of ambient air through the air intake section;
- and a moving seal on the fan for preventing the exhaust gas stream from entering the air intake section;
- a mixing area for receiving an exhaust gas stream produced by the gas turbine system;
- and
- a flow directing system for directing the flow of ambient air drawn in by the airflow generation system to the mixing area to reduce a temperature of the exhaust gas stream.
Dependencies are inferred from the claim text.