PRESSURISED ENERGY STORAGE SYSTEM IN WHICH THE HEAT ACCUMULATOR IS ARRANGED IN AN OVERPRESSURE ZONE

摘要

The invention relates to a compressed air energy storage system comprising a pressure accumulator (2) for gas to be stored under pressure, and a heat accumulator (27) for storing the compression heat that has accumulated during charging of the pressure accumulator (2), wherein the heat accumulator (27) is arranged ready for use in an overpressure zone (31). Said arrangement enables a structurally simple heat accumulator to be provided, since said heat accumulator is not loaded by the pressure of the gas passing therethrough.

主权项

1. A pressurized energy storage system comprising:
a pressure accumulator for gas to be stored under a pressure; a heat accumulator for storing heat of compression accrued while charging the pressure accumulator; and wherein the heat accumulator is for its part operatively located in an overpressure zone.