| 摘要 |
PROBLEM TO BE SOLVED: To provide a regenerative air conditioner to improve the efficiency of effective utilization of storage cold heat and reduce an amount of working power by a method wherein a whole of a refrigerant flowing through a refriger ant circuit is caused to pass a heat exchanger for heat collection and storage cold heat recovered from a heat storage medium is regulatable. SOLUTION: This air conditioner comprises a compressor 2, a condenser 3, a first pressure reducing mechanism 4, a heat exchanger 5 for heat collection to collect heat from a heat storage medium W from collection of heat, a second pressure reducing mechanism 6, and a vaporizer 7, which are successively connected in the order to form a refrigerant circuit 1. By changing the refrigerant pressure of the heat-exchange 5 for heat collection through control of the valve opening of the first pressure reducing mechanism 4, heat collection capacity of the heat-exchanger 5 for heat collection is regulated. |
