COOLING SYSTEM FOR AN ENERGY STORAGE SYSTEM AND METHOD OF OPERATING THE SAME
First Claim
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1. An energy storage system comprising:
- an axial compressor;
an intercooler coupled to the axial compressor;
a multi-stage radial compressor comprising a first stage radial compressor and a second stage radial compressor, coupled to the intercooler;
a thermal energy storage unit coupled to the multi-stage radial compressor;
an air storage unit coupled to the thermal energy storage unit;
a turbine coupled to the thermal energy storage unit; and
a cooling system coupled to the axial compressor and configured to cool air fed to the axial compressor.
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Abstract
An energy storage system includes an intercooler coupled to an axial compressor and a multi-stage radial compressor including a first stage radial compressor and a second stage radial compressor, coupled to the intercooler. The energy storage system further includes a thermal energy storage unit coupled to the multi-stage radial compressor and an air storage unit coupled to the thermal energy storage unit. The energy storage system also includes a turbine coupled to the thermal energy storage unit and a cooling system coupled to the axial compressor and configured to cool air fed to the axial compressor.
7 Citations
21 Claims
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1. An energy storage system comprising:
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an axial compressor; an intercooler coupled to the axial compressor; a multi-stage radial compressor comprising a first stage radial compressor and a second stage radial compressor, coupled to the intercooler; a thermal energy storage unit coupled to the multi-stage radial compressor; an air storage unit coupled to the thermal energy storage unit; a turbine coupled to the thermal energy storage unit; and a cooling system coupled to the axial compressor and configured to cool air fed to the axial compressor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for operating an energy storage system;
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cooling air fed to an axial compressor via a cooling system; feeding a first compressed air from the axial compressor to a multi-stage radial compressor comprising a first stage radial compressor and a second stage radial compressor, via an intercooler; feeding a second compressed air from the multi-stage radial compressor to a thermal energy storage unit; storing a thermal energy from the second compressed air in the thermal energy storage unit; feeding a cooled compressed air from the thermal energy storage unit to an air storage unit; feeding the cooled compressed air from the air storage unit to the thermal energy storage unit to heat the cooled compressed air using the stored thermal energy; and feeding a heated compressed air from the thermal energy storage unit to a turbine to expand the heated compressed air and generate an electric power via a generator. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification