Patent ID: 8624410

Claim:
A device for generating electricity, comprising: a first heat pump comprising a first closed circuit in which a first heat-transfer fluid circulates, and with a first heat exchanger between the first heat-transfer fluid and a flow of atmospheric air in which the flow of atmospheric air transfers a quantity of heat to the first heat-transfer fluid, at least one second heat pump comprising a second closed circuit in which a second heat-transfer fluid circulates, and with a second heat exchanger between the second heat-transfer fluid and a third heat-transfer fluid in which the second heat-transfer fluid transfers a quantity of heat to the third heat-transfer fluid; a third heat pump configured to transfer a quantity of heat from the first heat-transfer fluid to the second heat-transfer fluid; a third closed circuit, in which the third heat-transfer fluid circulates; a turbine inserted in the third closed circuit and driven by the third heat-transfer fluid; and an electric generator, mechanically driven by the turbine; the third closed circuit comprising first and second loops in which the third heat-transfer fluid circulates, each of the first and second loops having a hot line connecting an outlet of the second heat exchanger with a high pressure inlet of the turbine, the first loop having a first feedback line connecting a low pressure outlet of the turbine with an inlet of the second heat exchanger, the second loop having an intermediate heat exchanger between the first heat-transfer fluid and the third heat-transfer fluid in which the third heat-transfer fluid transfers a quantity of heat to the first heat-transfer fluid, an intermediate line connecting a low pressure outlet of the turbine with an inlet of the intermediate heat exchanger, and a second feedback line connecting an outlet of the intermediate exchanger with an inlet of the second heat exchanger.