METHOD FOR INCREASING REFRIGERATION OR HEAT PUMP SYSTEM EFFICIENCY, AND OPERATING METHOD

摘要

A method for increasing refrigeration or heat pump system efficiency. The refrigeration or heat pump system includes a refrigeration circuit, and the refrigeration circuit implements a user refrigeration cycle. The method is: A) arranging a circuit: a first cold storage circuit, the first cold storage circuit implementing the refrigeration cycle: a first cold storage cycle; B) selecting a cold storage medium: a first cold storage medium; C) enabling the first cold storage cycle to provide the first cold storage medium with cooling capacity, and controlling the temperature of the first cold storage medium, so that a first cold storage cycle stable operation evaporation temperature is higher than a user refrigeration cycle stable operation evaporation temperature; D) enabling the first cold storage medium to provide a pre-throttle refrigerant in the user refrigeration cycle with cooling capacity.