| 摘要 |
Provided is a coolant cycle system in which the volume of information that needs to be specified in advance is lowered, the computation processing load is reduced, and differences in the actual operating conditions are reflected to make it possible to speed up stabilization of an operating state in which the total sum of the required input energy is minimized. The coolant cycle system (300) is provided with a plurality of actuators, including outdoor fan motors (19m, 29m), compressors (15m, 25m), and indoor fan motors (47m, 57m, 67m) in order to perform a coolant circuit (310) refrigeration cycle. A controller (307) obtains the gradient, for the current evaporation temperature or the current condensation temperature, with regard to a graph of a function between each of the actuators and the evaporation temperature or the condensation temperature. The controller renews the value of the target evaporation temperature or the target condensation temperature so that the total sum of the input energy for each of the actuators is smaller than the present time. |
