| 摘要 |
A primary beverage cooling circuit for refrigerating a fluid used in a secondary beverage cooling circuit that cools beverage in a beverage conduit by pumping the fluid through a heat exchange conduit adjacent the beverage conduit to transfer heat therebetween, the primary beverage cooling circuit comprising a refrigerant circuit containing a refrigerant circulating through: a heat exchanger in heat transfer communication with the fluid to cool the fluid; a variable displacement compressor for circulating the refrigerant through the refrigerant circuit; a cooling device for cooling the refrigerant; and a valve for controlling the volume of fluid into the heat exchanger; the primary beverage cooling circuit further comprising a controller for controlling the operation of the compressor and/or the cooling device and/or the valve based on one or more measurements from temperature and/or pressure sensors in the refrigerant circuit to thereby operate the system on an efficient basis
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