Pumped heat energy storage system with modular turbomachinery
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United States of America Patent
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Oct 22, 2024
Grant Date -
Jun 29, 2023
app pub date -
Feb 10, 2023
filing date -
Aug 12, 2020
priority date (Note) -
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Abstract
The present disclosure provides pumped heat energy storage systems that can be used to store and extract electrical energy. A pumped heat energy storage system of the present disclosure can store energy by operating as a heat pump, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. The system can also extract energy by operating as a heat engine transferring heat from the hot side to the cold side, which can result in net work output. Shared powertrains and reversible powertrains are disclosed to circulate the working fluid.
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