Emerson Climate Technologies Retail Solutions, Inc.

Elettromeccanica S.p.a.

Samuele Da Ros

John Wallace

Andrea Contarini

Franklin Beltran

Giovanni Strappazzon

Nicola Trivillin

Edoardo Mario Biscaldi

A system and method for a COrefrigeration system includes a compressor, a heat exchanger, a liquid receiver, a first valve, and a valve controller. The heat exchanger operates as a gas cooler when the COrefrigeration system is in a transcritical mode and as a condenser when the COrefrigeration system is in the subcritical mode. The first valve controls a flow of refrigerant from the heat exchanger to the liquid receiver. The valve controller monitors an outdoor ambient temperature and a pressure of refrigerant exiting the heat exchanger, determines whether the COrefrigeration system is in the subcritical mode or in the transcritical mode, determines a pressure setpoint based on the monitored outdoor ambient temperature, and controls the first valve based on a comparison of the determined pressure setpoint and the monitored pressure when the COrefrigeration system is in the transcritical mode.

System and method for control of a transcritical refrigeration system

Growing community of inventors

Milan, Italy

Samuele Da Ros