Refrigeration system with isentropic expansion nozzle

A method of using a refrigeration system comprising:

• providing a refrigeration system comprising:
• a compressor including an inlet and an outlet;
• a condenser including an inlet and an outlet, the inlet of the condenser fluidly coupled to the outlet of the compressor;
• a thermal expansion valve including an inlet and an outlet, the inlet of the thermal expansion valve fluidly coupled to the outlet of the condenser;
• an isentropic expansion nozzle including an inlet and an outlet, the inlet of the isentropic expansion nozzle fluidly coupled to the outlet of the thermal expansion valve;
• and
• an evaporator including an inlet and an outlet, inlet of the evaporator fluidly coupled to the outlet of the isentropic expansion nozzle and the outlet of the evaporator fluidly coupled to the inlet of the compressor;
• compressing a refrigerant passing through the compressor;
• condensing the refrigerant passing through the condenser;
• decreasing a pressure of the refrigerant passing through the thermal expansion valve;
• increasing a velocity of the refrigerant passing through the isentropic expansion nozzle;
• and
• evaporating the refrigerant passing through the evaporator.

A method of modifying a fluid prior to evaporation comprising:

• passing a fluid through a thermal expansion valve to decrease a pressure and decrease a temperature of the fluid;
• passing the fluid having the decreased pressure and decreased temperature through an isentropic expansion nozzle to increase a velocity of the fluid without substantially changing the temperature of the fluid;
• and
• passing the fluid having an increased velocity and substantially unchanged temperature into an evaporator.