| 摘要 |
<P>PROBLEM TO BE SOLVED: To decrease the running cost of a hot-water-supply and air-conditioning system including a hot water supply device, an air conditioning device and a heat storage device. <P>SOLUTION: A hot-water-supply and air-conditioning system (1) carries out a cold storage operation and a utilization cooling operation and is configured to be able to execute a hot-water-supply-side cold storage operation and an air-conditioning-side cold storage operation during the cold storage operation. During the hot-water-supply-side cold storage operation, a hot water supply device (10) circulates a coolant in a hot-water-supply coolant circuit (40) in such a manner that a heating heat exchanger (48) functions as a radiator and that a hot-water-supply-side heat exchanger (33) functions as an evaporator; and a heat storage device (30) cools a heat storage medium in a heat storage tank (31) by means of the coolant flowing through the hot-water-supply-side heat exchanger (33). During the air-conditioning-side cold storage operation, an air conditioning device (20) circulates a coolant in an air-conditioning coolant circuit (21) in a such manner that an outdoor heat exchanger (24) functions as a radiator and that an air-conditioning-side heat exchanger (34) functions as an evaporator; and the heat storage device (30) cools the heat storage medium in the heat storage tank (31) by means of the coolant flowing through the air-conditioning-side heat exchanger (34). <P>COPYRIGHT: (C)2013,JPO&INPIT |
