CONTROL OF A REFRIGERATION CIRCUIT WITH AN INTERNAL HEAT EXCHANGER

摘要

Refrigeration circuit (2) for circulating a refrigerant in a predetermined flow direction, comprising in flow direction a heat rejecting heat exchanger (4), an evaporator throttle valve (8), an evaporator (10), a compressor (22), an internal heat exchanger (16) placed with its "cool side" between the evaporator (10) and the compressor (22), an inlet temperature sensor (24) located between an evaporator (19) and the internal heat exchanger (16), an outlet temperature sensor (26) located between the internal heat exchanger (16) and the compressor (22), and a control (28) for controlling the evaporator throttle valve (8) based on the outlet temperature sensor measurement.