DUAL-POWERTRAIN PUMPED HEAT ENERGY STORAGE WITH INVENTORY CONTROL AND PURGE
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Nov 21, 2024
filing date -
Nov 21, 2024
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Abstract
The present disclosure provides pumped thermal energy storage systems that can be used to store and extract electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, 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 extract energy by operating as a beat engine transferring heat from the hot side to the cold side, which can result in net work output.
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