TRANSITIONAL REFRIGERANT MIGRATION CONTROL IN REFRIGERATION SYSTEMS

摘要

Disclosed are a refrigeration circuit (110) and a method of controlling refrigerant migration within a refrigeration circuit (110). The refrigeration circuit (110) of a heat pump system (100) comprises a reservoir (5) which is provided to receive refrigerant from a first heat exchanger (3) of the heat pump system (100) when the heat pump system (100) switched from a cooling or defrost mode to a heating mode. The reservoir (5) is disposed fluidly between the first heat exchanger (3) and a second heat exchanger (7) of the heat pump system (100). The refrigerant flowing from the first heat exchanger (3) to the reservoir (5) is driven by a pressure difference between an outlet (3b) of the first exchanger (3) and an inlet (5b) of the reservoir (5).