Patent ID: 7640643
Filing Date: 2010-01-05
Classification: F01K,F02C,Y02E,Y10T

Abstract:
1. A method of converting a combined cycle power plant to a compressed air energy storage power plant, the combined cycle power plant including at least one combustion turbine, a heat recovery steam generator (HRSG) constructed and arranged to receive exhaust heat from an associated combustion turbine, a steam turbine associated with the HRSG, and an electric generator associated with the steam turbine, the method comprising the steps of: providing an air storage constructed and arranged to store compressed air, providing at least one compressor constructed and arranged to supply the air storage with compressed air, ensuring that compressed air from the storage can be received by the HRSG, utilizing the HRSG to provide heat to compressed air received from the air storage, and utilizing the steam turbine to receive heated compressed air from the HRSG and to expand the heated compressed air to produce power.