High-efficiency heat exchange in compressed-gas energy storage systems
First Claim
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1. A method for improving efficiency of a compressed-gas energy storage and recovery system, the method comprising:
- providing a heat-transfer fluid conditioned to at least one of (i) reduce a solubility of a gas in the heat-transfer fluid or (ii) reduce a rate of dissolution of a gas into the heat-transfer fluid;
at least one of (i) compressing the gas to store energy or (ii) expanding the gas to recover energy; and
thereduring, exchanging heat between the gas and the conditioned heat-transfer fluid, thereby increasing efficiency of the energy storage and recovery.
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Abstract
In various embodiments, efficiency of energy storage and recovery systems employing compressed air and liquid heat exchange is improved via control of the system operation and/or the properties of the heat-exchange liquid.
734 Citations
29 Claims
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1. A method for improving efficiency of a compressed-gas energy storage and recovery system, the method comprising:
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providing a heat-transfer fluid conditioned to at least one of (i) reduce a solubility of a gas in the heat-transfer fluid or (ii) reduce a rate of dissolution of a gas into the heat-transfer fluid; at least one of (i) compressing the gas to store energy or (ii) expanding the gas to recover energy; and thereduring, exchanging heat between the gas and the conditioned heat-transfer fluid, thereby increasing efficiency of the energy storage and recovery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification