Provided herein are rotary valve assemblies, engines, and corresponding methods. A rotary valve assembly may include a valve housing defining a cylindrical bore, an inlet, and an outlet. The valve assembly may further include an intake assembly and a throttle assembly arranged concentrically within the cylindrical bore of the valve housing, and the intake assembly and the throttle assembly may rotate independently of one another with respect to a longitudinal axis. During operation of the rotary valve assembly, the valve housing may permit fluid to enter the cylindrical bore of the valve housing via the inlet, the intake assembly may rotate to permit the fluid to flow through the at least one intake inlet port and the at least one throttle inlet port into the throttle body, and the intake assembly may permit the fluid to flow to the outlet from the throttle body.

A turbomachinery control system for controlling supercritical working fluid turbomachinery. The control system includes a light emitter to project light through working fluid of the turbomachinery toward a primary light detector provided within a line of sight to the emitter. The system further includes one or more secondary light detectors spaced from the line of sight, and a controller determining one or both of an intensity of light detected by the primary detector relative to the detected light intensity by the secondary detector, and wavelength of light detected by the primary detector relative to wavelength of light detected by the secondary detector. The controller determines the working fluid proximity of the critical point based on one or both of the determined relative intensity and determined relative wavelength, and controlling an actuator to control turbomachinery inlet or outlet conditions in accordance with the working fluid determined proximity of the critical point.

A rotor high-and-low pressure power apparatus, comprises a heat collector, an insulating pipe, a gasification reactor, an atomizer, a cylinder, a triangular rotor, an inner gear ring, a gear, an output shall, a one-way an intake valve, a liquid storage tank, a pressure valve, an insulating layer, an automatic exhaust valve, a housing, a heat sink and an exhaust control valve. The triangular rotor is arranged within the housing. The inner gear ring and the gear matching with the inner gear ring are arranged at the center of the triangular rotor. The gear is fixed on the output shaft. The triangular rotor divides the cylinder into three independent and equal sections. The gear ratio of the inner gear ring and the gear is 3:2. The rotor provided with a rotor engine works three times per rotation. The ratio of horsepower to volume is high.

A rotor high-and-low pressure power apparatus, comprises a heat collector, an insulating pipe, a gasification reactor, an atomizer, a cylinder, a triangular rotor, an inner gear ring, a gear, an output shall, a one-way an intake valve, a liquid storage tank, a pressure valve, an insulating layer, an automatic exhaust valve, a housing, a heat sink and an exhaust control valve. The triangular rotor is arranged within the housing. The inner gear ring and the gear matching with the inner gear ring are arranged at the center of the triangular rotor. The gear is fixed on the output shaft. The triangular rotor divides the cylinder into three independent and equal sections. The gear ratio of the inner gear ring and the gear is 3:2. The rotor provided with a rotor engine works three times per rotation. The ratio of horsepower to volume is high.

Provided herein are an austenite steel that satisfies desirable strength and desirable castability at the same time, and an austenite steel casting using same. The austenite steel according to an embodiment of the present invention contains Ni: 25 to 50%, Nb: 3.8 to 6.0%, Zr: 0.5% or less, B: 0.001 to 0.05%, Cr: 12 to 25%, Ti: 1.6% or less, Mo: 4.8% or less, and W: 5.2% or less in mass %, and the balance Fe and unavoidable impurities, wherein the parameter Ps represented by the following formula (1) satisfies Ps38,

Ps=8.3[Nb]7.5[Ti]+2.4[Mo]+3.5[W]formula (1),

where [Nb], [Ti], [Mo], and [W] represent the contents of Nb, Ti, Mo, and W, respectively, in mass %.

A converter of kinetic energy from a jet formed by a heat transfer fluid and a gas at high temperature, includes: at least one injector of the jet from at least one source of heat transfer fluid and of high-temperature gas, an impulse wheel mounted rotating secured to a shaft extending along an axis substantially perpendicularly to the injector and including a plurality of asymmetric blades, a tank surrounding said impulse wheel and at least one deflector extending underneath the blades.

A converter of kinetic energy from a jet formed by a heat transfer fluid and a gas at high temperature, includes: at least one injector of the jet from at least one source of heat transfer fluid and of high-temperature gas, an impulse wheel mounted rotating secured to a shaft extending along an axis substantially perpendicularly to the injector and including a plurality of asymmetric blades, a tank surrounding said impulse wheel and at least one deflector extending underneath the blades.

Systems store energy mechanically at a first time and extract the energy at a later time. When excess electricity from renewable sources or during off-peak periods is available, a pump directs a working liquid (L) to pressurize a gas (G) that is confined within a pressure vessel. When electricity from renewable sources is not available or during periods of peak demand or pricing, the pressurized gas (G) directs the working liquid (L) through a hydropower turbine. The turbine drives a generator through a mechanical coupling to provide electricity for powering a load. In addition, the system can leverage (take) any waste heat as the input to boost the efficiency of the system. The described systems function at ground level and are modular and scalable in capacity.

A rotor high-and-low pressure power apparatus, comprises a heat collector, an insulating pipe, a gasification reactor, an atomizer, a cylinder, a triangular rotor, an inner gear ring, a gear, an output shall, a one-way an intake valve, a liquid storage tank, a pressure valve, an insulating layer, an automatic exhaust valve, a housing, a heat sink and an exhaust control valve. The triangular rotor is arranged within the housing. The inner gear ring and the gear matching with the inner gear ring are arranged at the center of the triangular rotor. The gear is fixed on the output shaft. The triangular rotor divides the cylinder into three independent and equal sections. The gear ratio of the inner gear ring and the gear is 3:2. The rotor provided with a rotor engine works three times per rotation. The ratio of horsepower to volume is high.

A rotor high-and-low pressure power apparatus, comprises a heat collector, an insulating pipe, a gasification reactor, an atomizer, a cylinder, a triangular rotor, an inner gear ring, a gear, an output shall, a one-way an intake valve, a liquid storage tank, a pressure valve, an insulating layer, an automatic exhaust valve, a housing, a heat sink and an exhaust control valve. The triangular rotor is arranged within the housing. The inner gear ring and the gear matching with the inner gear ring are arranged at the center of the triangular rotor. The gear is fixed on the output shaft. The triangular rotor divides the cylinder into three independent and equal sections. The gear ratio of the inner gear ring and the gear is 3:2. The rotor provided with a rotor engine works three times per rotation. The ratio of horsepower to volume is high.