Compressed air energy storage and recovery
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United States of America Patent
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Apr 10, 2018
Issued Date -
N/A
app pub date -
Mar 31, 2015
filing date -
Apr 3, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A compressed air system energy storage and recovery system has a compressed air tank structured to store compressed air above 200 bars, a heat storage unit containing a heat transfer fluid and having a latent heat storage material, and a heat exchanger. The heat exchanger extracts heat from compressed ambient air above 200 bars for storage and to heat compressed air from the tank above 200 bars prior to expansion and use to recover energy in the air motor. Efficiency of energy storage and heat exchange is improved using pressures above 200 bars.
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International Classification(s)
- F01K:STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PL....
- F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F28D:HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTH....
- F28F:DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATU....
- F02C:GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION....
- F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....
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