An apparatus includes an electric generator that includes a fluid inlet configured to receive hydrogen at a first pressure, a turbine wheel configured to expand the hydrogen and rotate in response to expansion of the hydrogen flowing into an inlet of the turbine wheel and out of the outlet of the turbine wheel, a rotor coupled to the turbine wheel and configured to rotate with the turbine wheel, a stationary stator, the electric generator to generate an alternating current upon rotation of the rotor within the stator, and a fluid outlet configured to output hydrogen at a second pressure less than the first pressure. The apparatus includes a power electronics system electrically connected to an electrical output of the electric generator and to receive alternating current from the electric generator. The power electronics can condition the generated electrical current to supply power to various types of loads.

A Duplex Turbine Guide Vane (DTGV) assembly for a turbojet engine includes DTGVs arranged on a non-rotating guide vane ring configured to be positioned coaxially in apposition with a rotatable turbine wheel comprising turbine blades. Each of the DTGVs has an internal channel configured for receiving a gas and delivering the gas toward the turbine blades.

Wind-funneling systems for gas turbines are disclosed. Air travels through a wind funnel where it is compressed, and then flows into a gas turbine that is fueled by a hydrocarbon fuel source such as natural gas. The wind funnels have a controlled volume with an opening facing the wind that concentrates air power and energy and directs the force into a constricted outlet that feeds into the gas turbine. Compressed air from the wind funnel may enter the front compressor section of the gas turbine at relatively high density and force. As a result, the gas turbine does not have to use as much energy to pull the air in, which creates fuel savings. The compressed air from the wind funnel then flows to the combustion section of the gas turbine where oxygen from the wind-compressed air is used to combust the hydrocarbon fuel supplied to the gas turbine. The wind funnel is thus used to generate compressed air that may increase efficiency in the front compressor section of the gas turbine, and serves as an oxygen source in the combustion section of the gas turbine.

A combined cycle dual closed loop electric generating system, having a gas turbine assembly (having a combustion chamber, a compressor, a first pump, a first driveshaft, a gas turbine and a first generator) and a steam turbine assembly (having a second pump, a second driveshaft, a steam turbine and a second generator). The first portion of the working fluid circulates through the gas turbine assembly and a first heat exchanger. The second portion of the working fluid circulates through the steam turbine assembly and the first heat exchanger. The first heat exchanger transfers a first heat energy from the gas turbine loop to the steam turbine loop. The gas turbine assembly generates a first portion of an electric output. The steam turbine assembly generates a second portion of the electric output.

The invention relates to a turbine engine device of the gas turbine cycle type with cooled compression, regeneration, and reheating during expansion. The turbine engine device comprises a first turbocharger (C1, T2), a second turbocharger (C2, T1), two combustion chambers (CC1, CC2), an intercooler (IC), and a heat exchanger (E1). The device is configured to implement a fluid flow from the first compressor (C1) to the intercooler (IC), to the second compressor (C2), to the heat exchanger (E1), to the first combustion chamber (CC1), to the second turbine (T1) or the first turbine, to the second combustion chamber (CC2), to the first turbine (T2) or the second turbine, According to one aspect, the turbochargers are mounted on separate axes (A1, A2).

A combined cycle dual closed loop electric generating system, having a gas turbine assembly (having a combustion chamber, a compressor, a first pump, a first driveshaft, a gas turbine and a first generator) and a steam turbine assembly (having a second pump, a second driveshaft, a steam turbine and a second generator). The first portion of the working fluid circulates through the gas turbine assembly and a first heat exchanger. The second portion of the working fluid circulates through the steam turbine assembly and the first heat exchanger. The first heat exchanger transfers a first heat energy from the gas turbine loop to the steam turbine loop. The gas turbine assembly generates a first portion of an electric output. The steam turbine assembly generates a second portion of the electric output.

Disclosed herein is a once-through heat exchanger that includes a tube stack including a plurality of tubes, a plurality of heads connected to the tubes and configured to accommodate heated steam, and a manifold connected to the heads via a first link pipe and a second link pipe and configured to accommodate heated steam. The heads are spaced in a direction crossing a longitudinal direction thereof, and the first link pipe and the second link pipe include a first inclined link part or a second inclined link part, respectively, extending at an angle to each other.

A pericritical fluid system for a thermal management system associated with a turbine engine may include one or more sensors configured to generate sensor outputs corresponding to one or more phase properties of a pericritical fluid flowing through a cooling circuit of the thermal management system, and a controller configured to generate control commands configured to control one or more controllable components of the thermal management system based at least in part on the sensor outputs. The one or more sensors may include one or more phase detection sensors, such as an acoustic sensor.

A device and method for generating electrical energy from hydrogen and oxygen, includes a combustion engine, a heat recovery steam generator connected into the exhaust gas duct of the combustion engine, wherein the heat recovery steam generator has only one pressure stage. An H.sub.2O.sub.2 reactor is provided to which steam from the heat recovery steam generator, water, oxygen and hydrogen are fed, such that, in the H.sub.2O.sub.2 reactor, a reaction of oxygen and hydrogen forms steam, the water that is introduced is evaporated, additional steam is generated, the resultant superheated steam is fed to a steam turbine, and a generator connected to the steam turbine provides an electric power. High-pressure feed water is injected from the heat recovery steam generator into the H.sub.2O.sub.2 reactor via a line to control the reaction in the H.sub.2O.sub.2 reactor in a targeted manner and set the steam exit temperature from the H.sub.2O.sub.2 reactor.

A combined power generation system improves the generation efficiency of a pressure difference power generation facility by using at least one of air for cooling a turbine of a gas turbine power generation facility and waste heat of flue gas generated by the gas turbine power generation facility. Working fluid to be used in a supercritical fluid power generation facility is cooled by using cold energy of liquefied natural gas. The system includes an air discharge channel via which compressed air is discharged; a fuel gas heater for heating the natural gas to be introduced into the pressure difference power generation facility by performing a heat exchange between the discharged air and the natural gas being heated; and a cooling air inflow channel for guiding the cooled air passed through the fuel gas heater to a turbine of the gas turbine power generation facility.