Compressed air energy storage (Work for compression)

Description

Compressed air energy storage is a way to store energy generated at one time for use at another time using compressed air. In order to achieve a near thermodynamic reversible process so that most of the energy is saved in the system and can be retrieved, and losses are kept negligible, a near reversible isothermal process or an isentropic process is desired. From a process from an initial state A to a final state B, with absolute temperature constant, one finds the work required for compression (negative) or done by the expansion (positive),

Related formulas

Variables

WABWork required for compression (negative) or done by the expansion (positive) (J)
pAPressure at initial state (Pa)
VAThe volume of the vessel (m3)
pBPressure at final state (Pa)