Organic flash cycles for efficient power production

A system comprising:

• a pump;
• a heat exchanger, the heat exchanger coupled to an outlet of the pump, the heat exchanger operable to receive an organic fluid from the pump and to heat the organic fluid;
• a flash evaporator, the flash evaporator coupled to an outlet of the heat exchanger, the flash evaporator operable to receive the heated organic fluid from the heat exchanger, the flash evaporator operable to flash evaporate the heated organic fluid to generate a high pressure organic vapor and an organic liquid;
• a high pressure turbine, the high pressure turbine coupled to a vapor outlet of the flash evaporator, the high pressure turbine operable to be driven with the high pressure organic vapor received from the flash evaporator and to generate an intermediate pressure organic vapor;
• a throttling valve, the throttling valve coupled to a liquid outlet of the flash evaporator, the throttling valve operable to reduce a pressure of the organic liquid received from the flash evaporator;
• a mixer, the mixer coupled to an outlet of the throttling valve and to an outlet of the high pressure turbine, the mixer operable to mix the intermediate pressure organic vapor received from the high pressure turbine and the reduced pressure organic liquid received from the throttling valve to form a low pressure organic vapor;
• a low pressure turbine, the low pressure turbine coupled to an outlet of the mixer, the low pressure turbine operable to be driven with the low pressure organic vapor received from the mixer and to reduce a pressure of the low pressure organic vapor;
• and
• a condenser, the condenser coupled to an outlet of the low pressure turbine and to an inlet of the pump, the condenser operable to receive the reduced pressure low pressure organic vapor from the low pressure turbine and to generate a liquid state of the organic fluid, the condenser operable to deliver the liquid state of the organic fluid to the pump.