Low energy consumption refrigeration system with a rotary pressure exchanger replacing the bulk flow compressor and the high pressure expansion system

A refrigeration system comprising:

• a gas cooler or a condenser configured to reject first heat from a first fluid that is at a first pressure and that is in a supercritical state or subcritical state;
• an evaporator configured to absorb second heat into a second fluid that is at a second pressure that is lower than the first pressure and that is in a liquid state, a vapor state, or a two-phase mixture of liquid and vapor;
• and
• a rotary pressure exchanger comprising:
• a first manifold forming:
• a first manifold inlet configured to receive the first fluid via a first path from the gas cooler or the condenser;
• and a first manifold outlet configured to output the first fluid in the liquid state or in the two-phase mixture of liquid and vapor to the evaporator;
• a second manifold forming:
• a second manifold inlet configured to receive the second fluid via a second path from the evaporator;
• and a second manifold outlet configured to output the second fluid in the supercritical state or the subcritical state to the gas cooler or the condenser;
• and
• a rotor forming ducts, wherein the rotor is configured to:
• receive the first fluid via a first distal end of a first duct of the ducts from the first manifold inlet;
• receive the second fluid via a second distal end of the first duct from the second manifold inlet;
• exchange pressure between the first fluid and the second fluid;
• provide the first fluid from the first duct to the first manifold outlet;
• and
• provide the second fluid from the first duct to the second manifold outlet.