Abstract: A method is provided to ensure that a combustion turbine power generation system may operate at maximum allowable power at elevated ambient temperature and/or at low air density.

Abstract: A method is provided to ensure that a combustion turbine power generation system may operate at maximum allowable power at elevated ambient temperature and/or at low air density. The method includes providing at least one combustion turbine assembly including a compressor, an expansion turbine operatively associated with the compressor, a generator coupled with the expansion turbine; a combustor feeding the expansion turbine; flow path structure fluidly connecting an outlet of the compressor to an inlet of the combustor.

Abstract: A method is provided to ensure that a combustion turbine power generation system may operate at maximum allowable power at elevated ambient temperature and/or at low air density. The method includes providing at least one combustion turbine assembly including a compressor, an expansion turbine operatively associated with the compressor, an upgraded generator coupled with the expansion turbine; a combustor feeding the expansion turbine; flow path structure fluidly connecting an outlet of the compressor to an inlet of the combustor; a compressed air storage; a charging compressor for charging the air storage; charging structure fluidly connecting an outlet of the charging compressor with an inlet to the air storage; connection structure fluidly connecting an outlet of the air storage to an inlet of the combustor; and valve structure associated with the connection structure and the charging structure to control flow through the connection structure and the charging structure, respectively.

Abstract: A combustion turbine power generation system includes a modified simple cycle combustion turbine power generation system optimized for a "hot" stand-by reserve mode of operation and having a power shaft assembly including a compressor, an expansion turbine, and a double-ended motor/generator between the compressor and the turbine. The motor/generator has a turbine driving clutch structure on one end thereof and a compressor driving clutch structure on the other end thereof. A combustor feeds the expansion turbine. The power generation system includes an additional system having a boost compressor, an intercooler feeding cooled air to the boost compressor an electric motor for driving the boost compressor, and aftercooler downstream of the boost compressor. A compressed air energy storage is downstream of the aftercooler.

Abstract: The invention provides a stand-alone, hybrid combustion turbine derivative power generation system sized for the most efficient and cost-effective base load operation that is also capable of providing, using air storage techniques, short-duration peak power, which is approximately 200% of the base load rating, and short-duration intermediate load power over a whole a range of loads between a base load and a peak load. The peak/intermediate power is also delivered with the best practical efficiency possible. The hybrid system may employ a variety of combustion turbine thermal cycles, including a simple cycle combustion turbine plant, combustion turbine plants with intercooling, reheat, recuperation, steam injection and humidification, and combined cycle power plants.

Abstract: A method providing electric power with a system including a generator, and a single power shaft assembly having a compressor, turbine, combustor feeding the turbine, and drive coupling between the turbine, compressor, and generator.

Abstract: An electric power generation system including a power shaft assembly including a combustion turbine with a compressor, an expansion turbine, a combustor feeding the expansion turbine, an electrical generator, and a shaft for coupling the expansion turbine to drive the compressor and the electrical generator; an additional shaft assembly including an intercooler, a compressor, an expansion turbine, a combustor feeding the expansion turbine, and a driver for driving the compressor of the additional shaft assembly, the compressor of the additional shaft assembly being constructed and arranged to have a pressure ratio greater than a pressure ratio of the expansion turbine of the additional shaft assembly which is fluid connected to the power shaft assembly for pressure unloading the compressor of the power shaft assembly; a recuperator; and an exhaust stack.

Abstract: A thermal energy peaking/intermediate power plant is disclosed having an atmospheric Fluidized Bed Combustor (FBC) for heating compressed air which is input to a turbine. Low-grade fuels such as coal may be combusted in the FBC, eliminating the need for additional combustors requiring premium fuels.

Abstract: A peaking/intermediate power plant is disclosed having a compression mode in which air is compressed and stored in a storage device and an expansion mode in which such stored compressed air is initially pre-heated by exhaust gas in a recuperator, expanded without combustion in a high pressure turbine, combined with fuel and combusted in a low pressure combustor, expanded in a low pressure turbine, and supplied to the recuperator as exhaust gas of sufficient temperature to heat the compressed air enough to eliminate the need for is combustion prior to supply to the high pressure turbine.

Abstract: A system is disclosed for retrofitting a plurality of gas turbines for use in compression and expansion stages of a power plant. A first gas turbine is modified to perform as a motor driven air compressor compressing air and storing such compressed air in an air storage device. A second gas turbine is modified to perform as a generator driving expander in which air previously compressed is expanded in a turbine thus generating power.

Abstract: A heat recuperator is disclosed having a plurality of serially connected tube sections enclosing a gas which is to be heated by exposing the tube sections to a second gas of elevated temperature. Parallel-flow and/or counter-flow sections of tube sections are provided such that the temperature of the tube section does not decrease below the dew point of the second gas. A particularly significant application is in the area of Compressed Air Energy Storage (CAES) systems in which the recuperator is utilized to preheat air from a storage cavern prior to combustion.

Abstract: A thermal energy peaking/intermediate power plant is disclosed having a compression mode in which thermal energy is produced and stored in a thermal energy storage device and an expansion mode in which such stored thermal energy is utilized to produce steam from water and inject such steam into a combustion process.