TEMPERATURE REGULATOR FOR AGRICULTURAL CULTIVATION FACILITY

摘要

PROBLEM TO BE SOLVED: To provide a temperature regulator for an agricultural cultivation facility which can temporarily store heat in a greenhouse warmed by sunlight in the ground and return the heat stored in the ground according to the state of the greenhouse, thereby efficiently utilizing thermal energy.SOLUTION: The temperature is regulated in the agricultural cultivation facility by using a hybrid heat source combining underground heat and a heat pump unit in which a second circulation path 8 for returning heat stored in a heat storage layer 4 to the inside of a greenhouse 2 which is separated from a first circulation path 6 for storing heat is provided, and an intermediate circuit 82 (heat pump unit) is provided between a heat source side circuit 81 and a utilization side circuit 84.SELECTED DRAWING: Figure 1