PUMPED HEAT ENERGY STORAGE SYSTEM USING A CONVEYABLE SOLID THERMAL STORAGE MEDIA
First Claim
1. A pumped heat energy storage system, comprising:
- a charging assembly configured to compress a working fluid and generate thermal energy;
a thermal storage assembly operably coupled with the charging assembly and configured to store the thermal energy generated from the charging assembly; and
a discharging assembly operably coupled with the thermal storage assembly and configured to extract the thermal energy from the thermal storage assembly and convert the thermal energy to electrical energy.
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Accused Products
Abstract
A pumped heat energy storage system is provided. The pumped heat energy storage system may include a charging assembly configured to compress a working fluid and generate thermal energy. The pumped heat energy storage system may also include a thermal storage assembly operably coupled with the charging assembly and configured to store the thermal energy generated from the charging assembly. The pumped heat energy storage system may further include a discharging assembly operably coupled with the thermal storage assembly and configured to extract the thermal energy from the thermal storage assembly and convert the thermal energy to electrical energy.
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Citations
20 Claims
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1. A pumped heat energy storage system, comprising:
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a charging assembly configured to compress a working fluid and generate thermal energy; a thermal storage assembly operably coupled with the charging assembly and configured to store the thermal energy generated from the charging assembly; and a discharging assembly operably coupled with the thermal storage assembly and configured to extract the thermal energy from the thermal storage assembly and convert the thermal energy to electrical energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A pumped heat energy storage system, comprising:
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a charging assembly configured to generate thermal energy, the charging assembly comprising; a first compressor configured to compress a working fluid to generate the thermal energy; a first turbine operably coupled with the first compressor; and a motor coupled with the first compressor and configured to drive the first compressor; a thermal storage assembly operably coupled with the charging assembly and configured to store the thermal energy generated from the charging assembly; and a discharging assembly operably coupled with the thermal storage assembly and configured to extract the thermal energy from the thermal storage assembly and convert the thermal energy to electrical energy, the discharging assembly comprising; a second compressor configured to compress the working fluid from the thermal storage assembly; a second turbine operably coupled with the second compressor and configured to expand the working fluid from the thermal storage assembly to generate mechanical energy; and a generator operably coupled with the second turbine and configured to convert at least a portion of the mechanical energy to the electrical energy. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A pumped heat energy storage system, comprising:
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a thermal storage assembly configured to store thermal energy, the thermal storage assembly comprising; a first media tank configured to store particulate media at ambient temperature; a second media tank fluidly coupled with the first media tank and configured to store a heated particulate media; a third media tank fluidly coupled with the first media tank and configured to store a cooled particulate media; a first heat exchanger coupled with an inlet of the second media tank; a second heat exchanger coupled with an inlet of the third media tank; a third heat exchanger coupled with a first inlet of the first media tank; and a fourth heat exchanger coupled with a second inlet of the first media tank, wherein each of the first, second, third, and fourth heat exchangers is an indirect solid-gas heat exchanger; a charging assembly configured to compress a working fluid and generate the thermal energy stored in the thermal storage assembly, the charging assembly comprising; a first compressor fluidly coupled with and disposed upstream of the first heat exchanger and downstream of the second heat exchanger, the first compressor being configured to compress the working fluid and generate the thermal energy; a first turbine fluidly coupled with and disposed downstream from the first heat exchanger and upstream of the second heat exchanger; and a motor coupled with the first compressor and configured to drive the first compressor; a discharging assembly configured to extract the thermal energy stored in the thermal storage assembly and convert the thermal energy to electrical energy, the discharging assembly comprising; a second compressor fluidly coupled with and disposed downstream from the fourth heat exchanger and upstream of the third heat exchanger, the second compressor being configured to compress the working fluid from the fourth heat exchanger; a second turbine fluidly coupled with and disposed downstream from the third heat exchanger and upstream of the fourth heat exchanger, the second turbine configured to expand the working fluid from the third heat exchanger to generate mechanical energy; and a generator operably coupled with the second turbine and configured to convert at least a portion of the mechanical energy to the electrical energy.
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Specification