Device for conversion of kinetic and thermal energies of gas flows to work

A device for conversion of kinetic and thermal energies of gas flows to work, comprising:

• (a) a duct having an inlet for gas flow entry and an outlet for gas flow exit to ambient atmosphere;
• (b) a first turbine positioned within the duct such that a first zone is located between the duct inlet and the first turbine;
• (c) a second turbine positioned within the duct such that a second zone is located between the first turbine and the second turbine, the second turbine being arranged downstream of the first turbine and upstream of the duct outlet;
• (d) at least one injector positioned in the second zone downstream of the first turbine and upstream of the second turbine, the injector being configured to inject a mist of evaporating liquid into the gas flow after the gas flow has passed through the first turbine;
• (e) a liquid line connected to the injector and comprising pipes, at least one reservoir for the liquid, at least one filter, and at least one pump;
• (f) a first pair of gauges positioned in the first zone, the first pair comprising a pressure gauge and a temperature gauge for measuring local pressure and temperature in the first zone;
• (g) a second pair of gauges positioned in the second zone, the second pair comprising a pressure gauge and a temperature gauge for measuring local pressure and temperature in the second zone;
• (h) a third pair of gauges positioned outside the duct, the third pair comprising a pressure gauge and a temperature gauge for measuring ambient atmospheric pressure and temperature;
• and
• (i) a controller configured to receive real-time pressure and temperature data from the first pair, the second pair, and the third pair and to regulate an injection rate of the evaporating liquid through the injector based on said real-time pressure and temperature data;
• wherein the injector injects a mist of evaporating liquid into the gas flow in the second zone after passage through the first turbine, evaporation of the liquid rapidly cooling the gas flow and causing a pressure drop from the first zone to the second zone at or near an outlet side of the first turbine, and the controller maintaining pressure and temperature in the second zone above ambient atmospheric pressure and temperature.