| 摘要 |
It is described a thermal energy storage and recovery arrangement. The arrangement comprises a first thermal energy storage, a compression and expansion unit coupled to the first thermal energy storage, and a second thermal energy storage coupled to the compression and expansion unit. The first thermal energy storage and the second thermal energy storage are adapted to work at a temperature being equal to or higher than the ambient temperature of the thermal energy storage and recovery arrangement In a charging mode, the first thermal energy storage is adapted for receiving a working medium being supplied to the thermal energy storage and recovery arrangement and for releasing thermal energy to the received working medium, the compression and expansion unit is adapted for receiving the working medium from the first thermal energy storage and for compressing the working medium, the second thermal energy storage is adapted for receiving the compressed working medium from the compression and expansion unit, for receiving thermal energy from the compressed working medium and for storing at least a part of this energy, and the compression and expansion unit is adapted for receiving the compressed working medium from the second thermal energy storage and for expanding the compressed working medium. |
