Energy Recovery, Inc.
LOW ENERGY CONSUMPTION REFRIGERATION SYSTEM WITH A ROTARY PRESSURE EXCHANGER REPLACING THE BULK FLOW COMPRESSOR AND THE HIGH PRESSURE EXPANSION VALVE

Abstract:

A refrigeration system includes a rotary pressure exchanger fluidly coupled to a low pressure loop and a high pressure loop. The rotary pressure exchanger replaces a traditional bulk flow compressor. The rotary pressure exchanger is configured to receive the refrigerant at high pressure from the high pressure loop, to receive the refrigerant at low pressure from the low pressure loop, and to exchange pressure between the refrigerant at high pressure and the refrigerant at low pressure, and wherein a first exiting stream from the rotary pressure exchanger includes the refrigerant at high pressure in the supercritical state or the subcritical state and a second exiting stream from the rotary pressure exchanger includes the refrigerant at low pressure in the liquid state or the two-phase mixture of liquid and vapor.