Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2008-10-03
2009-11-10
Casaregola, Louis J (Department: 3741)
Power plants
Combustion products used as motive fluid
Process
C060S039183, C060S727000
Reexamination Certificate
active
07614237
ABSTRACT:
A CAES system (10) includes an air storage (18), a compressor (20) supplying compressed air to the air storage, a power generating structure (11, 102), a heat exchanger (24), an auxiliary combustor (27), an air expander (30), and an electric generator (32). The system operates in one of modes a) a main power production mode wherein the auxiliary combustor is inoperable and the power generating structure is operable, to produce power by the air expander, fed by the heated compressed air received from the air storage, in addition to power produced by the power generating structure, or b) a synchronous reserve power mode wherein the auxiliary combustor is operable and the power generating structure is inoperable, with compressed air withdrawn from the air storage being preheated by the auxiliary combustor that feeds the air expander, with the air expander expanding the heated air and the generator providing immediate start-up power.
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PCT Search Report and Written Opinion in PCT/US2009/048077, dated Aug. 17, 2009.
Casaregola Louis J
Manelli Denison & Selter PLLC
Stemberger Edward J.
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