COOLANT CIRCUIT RUNNING DEVICE AND METHOD FOR OPERATING A COOLANT CIRCUIT RUNNING DEVICE WITH A HYBRID EVAPORATOR

摘要

Refrigeration cycle device with a refrigerant flow through the refrigerant circuit K from at least one compressor, a condenser, an expansion agent and at least one evaporator (1) and a thermally coupled to the refrigerant circuit K coolant circuit of a water-based coolant or coolant mixture, wherein the evaporator (1) and / or the condenser is provided with at least one refrigerant passage and at least one coolant passage extending parallel thereto, the refrigerant being CO 2 and the evaporator (1) and / or the condenser being a coupled pipe-in-pipe system / is with an inner tube (2) and an outer tube surrounding this outside (3), wherein between inner tube (2) and outer tube (3) in relation to the diameters of inner tube (2) and outer tube (3) narrow annular gap (4) is formed, and wherein the specific volume of the refrigerant is adapted to the size of the annular gap (4).