| abstract |
Reversible mechanism is comprised with compression and expansion air according to the compressed air energy storage system of the embodiment of the present invention, one or more pressurized air memory device, control system, one or more heat exchanger, and in some embodiments of the invention, also comprise motor generator.Reversible air compressor-expander uses mechanical output using pressurized air (when it is as compressor effect), and is mechanical output (when it is as expander effect) using the transformation of energy be stored in pressurized air.In certain embodiments, compressor-expander comprises one or more stage, and each stage comprises the pressurized container (" pressure sensitive element ") being partly filled with water or other liquid.In certain embodiments, pressurized container is communicated with one or more cylinder apparatus with the chamber exchanging gas and liquid with cylinder.In electronically controlled situation, suitable control valve unit allows gas to enter or leave pressure sensitive element and cylinder apparatus (if any). |