| 摘要 |
PROBLEM TO BE SOLVED: To ensure a stable cold storage operation after a heating operation.SOLUTION: When a heat storage medium is cooled to generate clathrate hydrates in a regenerative heat exchanger (37), a storage air conditioner (10) performs a heating operation for delivering refrigerant flowing out of an outdoor heat exchanger (22) to the regenerative heat exchanger (37) and heating the heat storage medium. After end of this heating operation, the storage air conditioner (10) performs a discharge operation for discharging liquid refrigerant accumulated in the regenerative heat exchanger (37) as a result of the heating operation by delivering the refrigerant that has been decompressed by an outdoor expansion valve (23) to the regenerative heat exchanger (37).SELECTED DRAWING: Figure 9 |
