METHOD OF OPERATING A VAPOUR COMPRESSION CYCLE UNDER TRANS- OR SUPERCRITICAL CONDITIONS

摘要

the present invention utilizes the regulation of specific enthalpy at the inlet to the evaporator by the deliberate use of pressure and / or temperature before throttling for adjusting the capacity.the capacity is determined by the variation of the difference of enthalpy of refrigerant into the evaporator, and change of the specific heat of refrigerant before throttling. supercritical state, this adjustment may be provided by change of pressure and temperature separately.in a preferred embodiment, the modulation of the specific heat is carried out by varying the pressure tool. the refrigerant is cooled to a temperature as low as it is possible to descend through the cooling medium and the pressure is regulated to provide the heat required.in another embodiment, the modulation is used for the enthalpy change of the temperature of the refrigerant before throttling, which is carried out by adjusting the release of heat from the device.