Patent ID: 7614237
Filing Date: 2009-11-10
Classification: F01D,F02C,F05B,F05D,Y02E

Abstract:
1. A method of operating a Compressed Air Energy Storage (CAES) system, the system including an air storage for storing compressed air, an auxiliary compressor for supplying compressed air to the air storage, a power generating structure, a heat exchanger constructed and arranged to receive heat from the power generating structure and to receive compressed air from the air storage, at least one auxiliary combustor constructed and arranged to receive compressed air from the air storage, an air expander constructed and arranged to be fed with heated air from one of the heat exchanger or the at least one auxiliary combustor and to expand the heated air, and an electric generator, associated with the expander, for producing electric power, the method including selectively operating the system in one of the following power production modes of operation: