Systems and methods for geothermal power generation using a closed-loop of liquid having low boiling temperature. A system for generating electricity includes: a storage tank to store a specific liquid, which has a boiling point of under 90 degrees Celsius; a closed-loop pipe sub-system, which penetrates underground to a depth of between 1,000 to 2,500 meters, and transports therein the specific liquid downwardly underground and then upwardly back towards ground level, and causes at least a portion of the specific liquid to boil underground due to proximity to a natural geothermal heat source; at least one turbine associated with an electric power generator, connected above ground level to the closed-loop pipe sub-system, to receive steam that results in from underground boiling of the specific liquid, to pass the steam through the turbine, and to generate electric power through the electric power generator

Systems and methods for geothermal power generation using a closed-loop of liquid having low boiling temperature. A system for generating electricity includes: a storage tank to store a specific liquid, which has a boiling point of under 90 degrees Celsius; a closed-loop pipe sub-system, which penetrates underground to a depth of between 1,000 to 2,500 meters, and transports therein the specific liquid downwardly underground and then upwardly back towards ground level, and causes at least a portion of the specific liquid to boil underground due to proximity to a natural geothermal heat source; at least one turbine associated with an electric power generator, connected above ground level to the closed-loop pipe sub-system, to receive steam that results in from underground boiling of the specific liquid, to pass the steam through the turbine, and to generate electric power through the electric power generator

Embodiments of the present disclosure include a system, method, and apparatus comprising a direct steam generator configured to generate saturated steam or superheated steam and combustion exhaust constituents. A CONVAPORATOR Unit (CU) can be fluidly coupled to the direct steam generator. The CU can be configured to route the saturated steam or superheated steam and combustion exhaust constituents through a condenser portion of the CU via a condenser side steam conduit and can be configured to condense the super-heated steam or saturated steam to form a condensate. A separation tank and water return system can be fluidly coupled to a condenser side condensate conduit of the condenser portion of the CU. The separation tank and water return system can be configured to separate the combustion exhaust constituents from the condensate. An evaporator portion of the CU can be fluidly coupled with the separation tank and water return system via an evaporator side condensate conduit. The evaporator portion can be configured to evaporate the condensate from the separation tank and water return system via heat transfer between the condenser portion and evaporator portion to form steam. A turbine can be fluidly coupled with the evaporator portion of the CU via an evaporator side steam conduit.

Embodiments of the present disclosure include a system, method, and apparatus comprising a direct steam generator configured to generate saturated steam or superheated steam and combustion exhaust constituents. A CONVAPORATOR Unit (CU) can be fluidly coupled to the direct steam generator. The CU can be configured to route the saturated steam or superheated steam and combustion exhaust constituents through a condenser portion of the CU via a condenser side steam conduit and can be configured to condense the super-heated steam or saturated steam to form a condensate. A separation tank and water return system can be fluidly coupled to a condenser side condensate conduit of the condenser portion of the CU. The separation tank and water return system can be configured to separate the combustion exhaust constituents from the condensate. An evaporator portion of the CU can be fluidly coupled with the separation tank and water return system via an evaporator side condensate conduit. The evaporator portion can be configured to evaporate the condensate from the separation tank and water return system via heat transfer between the condenser portion and evaporator portion to form steam. A turbine can be fluidly coupled with the evaporator portion of the CU via an evaporator side steam conduit.

The present invention discloses a novel apparatus and methods for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of a power plant. Improvements in power augmentation and engine operation include systems and methods for preheating a steam injection system.

A power generation system and method including a first heat exchanger, a first thermal engine, and a first power generator on a first working medium line L1 that circulates a first working medium W1, a second heat exchanger, a third working medium supply device that supplies a third working medium W3, and a mixing device for mixing a second working medium W2 and the third working medium. A second thermal engine, and a second power generator are included on a second working medium line L2 that circulates the second working medium. On both of a downstream side of the first thermal engine on the first working medium line and a downstream side of the second thermal engine on the second working medium line, a third heat exchanger is included. Also included is a third working medium discharge device for discharging the third working medium to the third heat exchanger.

A fuel cell system includes a fuel cell having an anode and a cathode, a water recovery system configured to recycle water from exhaust from the anode, a heat exchanger configured to transfer heat between exhaust from the cathode and water from the water recovery system, and a saturator having an upper section and a lower section separated by a divider defining an opening configured to allow fuel and steam to pass from the lower section to the upper section. The lower section receives fuel from a fuel source and water from the water recovery unit and the upper section receives fuel from the lower section and water from the heat exchanger.

A fuel cell system includes a fuel cell having an anode and a cathode, a water recovery system configured to recycle water from exhaust from the anode, a heat exchanger configured to transfer heat between exhaust from the cathode and water from the water recovery system, and a saturator having an upper section and a lower section separated by a divider defining an opening configured to allow fuel and steam to pass from the lower section to the upper section. The lower section receives fuel from a fuel source and water from the water recovery unit and the upper section receives fuel from the lower section and water from the heat exchanger.

The present invention discloses a novel apparatus and methods for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of a power plant. Improvements in power augmentation and engine operation include systems and methods for preheating piping of a power augmentation system and directing flows of hot compressed air, steam or a combination thereof into the gas turbine engine.

A rotary liquid piston compressor and a power generation system including a first fluid loop. The first fluid loop includes a pump that circulates a liquid. A second fluid loop that generates power by circulating a supercritical fluid. The second fluid loop includes a turbine that rotates and powers a generator as the supercritical fluid flows through the turbine. A rotary liquid piston compressor fluidly coupled to the first fluid loop and the second fluid loop. The rotary liquid piston compressor exchanges pressure between the liquid circulating in the first fluid loop and the supercritical fluid circulating in the second fluid loop.