Method for operating a regenerative heat reservoir arrangement and heat reservoir arrangement

Abstract

The invention relates to a method for operating a regenerative heat reservoir arrangement (9), wherein the heat reservoir arrangement (9) has: at least one gas heater (2) for heating a carrier gas (3), in particular for heating air; a heat reservoir row (4) with multiple heat reservoir modules (5); and at least one compressor (6), wherein, during a charging cycle, carrier gas (3) heated in the gasheater (2) flows through at least one heat reservoir module (5-8), preferably multiple subsequent heat reservoir modules (5-8) of the heat reservoir row (4), the at least one heat reservoir module isthermally charged by the transfer of heat from the heated carrier gas (3) to a heat storage material of the heat reservoir module (5-8) and the carrier gas (3) is cooled during the charging process,wherein if, after the charging of a heat reservoir module (5-7), the carrier gas temperature reaches or exceeds a minimum charging temperature for a subsequent heat reservoir module (6-8) in the heatreservoir row (4), the carrier gas (3) is fed to the subsequent heat reservoir module (6-8) for charging, and wherein the carrier gas (3) is recirculated if the carrier gas temperature falls below theminimum charging temperature for the subsequent heat reservoir module (6-8), and the carrier gas (3), when recirculated, is fed to the compressor (6) and, after compression, is fed back to the gas heater (2) for reheating of the carrier gas (3).

Description

technical field [0001] The invention relates to a method for operating a regenerative heat accumulator arrangement comprising at least one gas heater for heating a carrier gas, in particular for heating air, with a plurality of heat accumulator modules The regenerator bank and at least one compressor, wherein, during the loading cycle, at least one regenerator module in the regenerator row, preferably a plurality of subsequent regenerator modules, is heated by the carrier gas in the gas heater passes through, and is thermally loaded by heat transfer from the heated carrier gas to the heat storage material of the regenerator module, and during loading, the carrier gas is cooled, wherein, when the carrier gas after loading the regenerator module When the temperature reaches or exceeds the lowest loading temperature of the subsequent regenerator module in the regenerator row, the cooled carrier gas is supplied to the subsequent regenerator module for loading, and wherein, if the ...

AI Technical Summary

Problems solved by technology

Low utilization with known methods of operating regenerative thermal storage systems increases the cost of energy storage since most thermal storage materials are not used to actively store thermal energy

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