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US 10,480,409 B2Granted
Compressed air energy storage and recovery system and method with constant volume heating
AssigneeIfp Energies Nouvelles
InventorDavid Teixeira
Life of this patent
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Abstract
The invention is a compressed gas energy storage and recovery system and method, of AACAES type. The system and the method according to the invention heats at constant volume stored compressed gas to increase the pressure of the stored compressed gas.
Claims14
A compressed gas energy storage and recovery system comprising:
- at least one compressor for compressing the gas, a storage providing constant volume storage of the compressed gas, a first heat exchanger located outside the storage for cooling the compressed gas with a heat transfer fluid which absorbs heat from the compressed gas, a heater for heating the stored compressed gas at constant volume;
- and at least one expansion device for expanding the compressed gas after heating for generating energy, and wherein
- the heater for heating the compressed gas at constant volume is located in the storage and the heating of the stored compressed gas in the storage is at least partially performed by heat transfer between heat transfer fluid and the compressed gas and the heater for heating the stored compressed gas comprises a second heat exchanger exchanging heat between the stored compressed gas and the heat transfer fluid of the first heat exchanger.
A compressed gas energy storage and recovery method comprising:
- a) compressing gas;
- b) cooling the compressed gas by heat exchange with a heat transfer fluid to produce heated heat transfer fluid;
- c) storing the cooled compressed gas in a constant volume gas storage;
- d) heating the stored compressed gas in the storage at constant volume with the heating being performed at least partially by heat exchange between the heated heat transfer fluid and the compressed gas stored at constant volume;
- and
- e) expanding the compressed gas heated with the heat transfer fluid to generate energy.
3 more elements
Dependencies are inferred from the claim text.