METHOD FOR STORING AND PRODUCING ENERGY BY MEANS OF COMPRESSED AIR WITH ADDITIONAL ENERGY RECOVERY

The invention relates to a method for storing and producing energy by means of compressed air, comprising the following steps: - compressing the air using staged compressors, during which time the air is cooled, after at least one compression step, by means of an exchange with a heat transfer fluid,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BRIOT, Patrick, TEIXEIRA, David
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for storing and producing energy by means of compressed air, comprising the following steps: - compressing the air using staged compressors, during which time the air is cooled, after at least one compression step, by means of an exchange with a heat transfer fluid, - storing the compressed air and the hot heat transfer fluid after the exchange performed during the compression steps, - expanding the air in multiple stages by means of energy production turbines, during which time the air is heated, after at least one expansion step, by means of the hot transfer fluid tapped from the storage means. According to the invention, after the expanded air is heated and before being recirculated to the compression step, the transfer fluid is cooled by an additional energy recovery loop comprising a pump, an exchanger and a turbine, and an additional transfer fluid.