Thermal energy storage and recovery device and system having a heat exchanger arrangement using a compressed gas

摘要

A thermal energy storage and recovery device is disclosed which includes a heat exchanger arrangement configured for guiding a flow of a heat transfer medium between a first end and a second end, and a heat storage material surrounding the heat exchanger arrangement so that a thermal interaction region is formed for thermally coupling the heat transfer medium with the heat storage material. The heat exchanger arrangement is sealed against the heat storage material so that, when in a first operational mode, in which the heat storage material is supposed to receive thermal energy from the heat transfer medium, a compressed gas is usable as the heat transfer medium for transferring thermal energy from the heat transfer medium to the heat storage material.

主权项

1. A thermal energy storage and recovery device comprising:
a heat exchanger arrangement, which is configured for guiding a flow of a heat transfer medium between a first end of the heat exchanger arrangement and a second end of the heat exchanger arrangement, and a heat storage material, which surrounds the heat exchanger arrangement in such a manner that a thermal interaction region is formed for thermally coupling the heat transfer medium with the heat storage material,
wherein the heat exchanger arrangement is sealed against the heat storage material in such a manner that, when the thermal energy storage and recovery device is in a first operational mode, in which the heat storage material is to receive thermal energy from the heat transfer medium, compressed gas, which has been heated up by a gas compression, is usable as the heat transfer medium for transferring thermal energy from the heat transfer medium to the heat storage material; and wherein the heat exchanger arrangement includes: a first heat exchange section being associated with the first end, a second heat exchange section being associated with the second end, a first connecting section connecting the first heat exchange section with the second heat exchange section and a second connecting section connecting the first heat exchange section with the second heat exchange section parallel to the first connecting section, wherein at least one of the connecting sections comprises a valve for controlling the flow of the heat transfer medium through the respective connecting section.