Development and verification of control system for heat recovery ground source heat pump system
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Date
2018Author
Katsura, Takao
Shoji, Yutaka
Miyashita, Yoshiki
Nagano, Katsunori
Nakamura, Yasushi
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An operation method and control system for heat recovery ground source heat pump (HR-GSHP) systems have been developed. By applying the operation method and control system, the heating and cooling output from the respective GSHP units can be controlled according to the operational condition. This maximizes the energy saving effect by operating the GSHP units without excess temperature change of the heat carrier fluid. In this paper, the outlines of HR-GSHP system and the importance of control system for the HR-GSHP systems were firstly explained. Next, the control system's configuration and the control methodology were explained. In addition, the operation of a HR-GSHP system with the control system, in which the control methodology had been installed, was verified by using the field test apparatus. As the result, it was confirmed that the above control methodologies were applicable.