A hydraulic turbine unit, comprising: an evaporator, a main body, and a retractable liner. The liner is arranged within the main body and communicates with the evaporator. The main body contains an energy liquid. The main body is connected with a hydraulic turbine. A water tank is arranged at a water outlet of the hydraulic turbine. The water tank is arranged higher than the main body. The evaporator is configured to continuously absorb heat and evaporate a liquid working medium to enter the liner, such that a volume expansion of the liner pressurizes the energy liquid in the main body, and a pressurized energy liquid flows into the hydraulic turbine to output a mechanical energy. The energy liquid is configured to flow back to the main body due to a gravity thereof and compress a gaseous working medium for liquefaction, when an ambient temperature meets a liquefaction temperature.

A combined power generation system and method of a small fluoride-salt-cooled high-temperature reactor and solar tower is provided, which belongs to the field of new energy and renewable energy application and includes: a nuclear reactor power generation system, a solar tower power generation system and a heat compensation system. Both the nuclear reactor power generation system and the solar tower power generation system adopt supercritical carbon dioxide Brayton cycle system to generate electricity efficiently; molten salt pool in the nuclear reactor power generation system stores high-temperature heat from the modular reactor, and multi-stage temperature heat is utilized for generating power and compensating heat required by the solar tower power generation system.

A solar thermodynamic power generator includes: a quartz window placed on a metal shell to form an electromagnetic resonant cavity structure for receiving solar energy; a ceramic conduit placed in the metal shell, wherein a working medium is heated in the ceramic conduit by the solar energy; a heat exchanger placed in a vacuum insulation oil tank; a steam generator placed in the vacuum insulation oil tank; a ceramic heating tube placed in a combustion chamber; and a turbine communicating with the steam generator through a fifth pipeline and a sixth pipeline. The present invention is environmentally friendly, safe, low-cost, high-efficiency, pollution-free, emission-free, and not affected by natural weather or environment. Like natural gas, the present invention can be configured to perform grid-connected power generation. Furthermore, after the hydrogen fuel and the hydrogen silicon fuel are mixed and burned, waste hydrogen can be recycled and reused.

A non-positive displacement type pressurizing device for pressurizing a fluid includes a rotor including a rotary blade row including a plurality of rotary blades provided at intervals in a circumferential direction; a casing that accommodates the rotor; a stationary blade row supported by the casing and including a plurality of stationary blades provided at intervals in the circumferential direction; and a plurality of heat exchanging units for cooling the fluid, wherein the heat exchanging units are configured to divide a flow path formed between stationary blades, of the plurality of stationary blades, adjacent to one another in the circumferential direction in a height direction of the stationary blades.

A piston ring configured to be disposed in a floating piston for use in a vessel of a thermal energy storage system to separate a hot working fluid from a cold working fluid, wherein the piston ring comprises of a plurality of arc segments, each arc segment interconnected by a joint.

A solar-powered generator captures solar energy and generates steam with the energy. The generator includes a container formed with an inner spherical wall defining an inner chamber and having an inner reflective surface containing photovoltaic cells and an outer spherical wall defining an outer chamber located between the inner and outer spherical walls. The container is formed to allow for sunlight to enter the inner chamber. An inlet port is configured to allow water to enter the outer chamber and an outlet port is configured to allow steam to exit the outer chamber, whereby sunlight entering the inner chamber through the passage bounces off of the inner reflective surface allowing thermal energy to heat the water in the outer chamber to create steam to generate electricity through an external steam turbine. While simultaneously using radiant energy to be absorbed by photovoltaic cells to generate additional electricity.

Various examples of systems and methods are provided for Lyapunov control for uncertain systems. In one example, a system includes a process plant and a robust Lyapunov controller configured to control an input of the process plant. The robust Lyapunov controller includes an inner closed loop Lyapunov controller and an outer closed loop error stabilizer. In another example, a method includes monitoring a system output of a process plant; generating an estimated system control input based upon a defined output reference; generating a system control input using the estimated system control input and a compensation term; and adjusting the process plant based upon the system control input to force the system output to track the defined output reference. An inner closed loop Lyapunov controller can generate the estimated system control input and an outer closed loop error stabilizer can generate the system control input.

An actuator comprising a bottom plate, a top-plate and one or more hub assembly extending between and rotatably coupling the bottom and top plates. The actuator also includes one or more bellows units disposed between the top plate and bottom plate, the one or more bellows units comprising a first and second inflatable bellows coupled by a web extending between the first and second bellows, the first and second bellows defining respective and separate first and second bellows cavities, with the first bellows of the bellows units disposed on a first side of the bottom plate, and the second bellows of the bellows units disposed on a second side of the bottom plate, opposing the first side, and between the top and bottom plates.

The invention provides a method for storing heat and continuously generating electricity, the method comprising a phase change material; first fluid conduit in thermal communication with the phase change material wherein the first conduit is adapted to receive a first fluid; a second fluid conduit in thermal communication with the phase change material, wherein the second conduit is adapted to receive a second fluid; and a turbine in thermal communication with the second fluid. Also provided is a method for continuously charging the energy power block portion of a combined thermal energy storage and heat exchanger unit with heated fluid generated by concentrated solar power, the method comprising intermittently storing heat in a phase change material; and continually directing the heat from the phase change material to a turbine such that the phase change material buffers the turbine against inconsistent solar heat inputs.

An energy power generator includes an energy source having a solar energy source further having at least one or more parabolic mirrors for focusing solar energy in a predetermined direction or focal point, an enclosed fluid circuit including a medium supply tank, a pump coupled to the medium supply tank, a boiler tank coupled to the pump, a turbine and generator coupled to the boiler tank, and a condenser having an output of the turbine as an input and the condenser further providing an output used as a feedback input to the medium supply tank. The generator can further include one or more parabolic mirrors oriented or focused towards the predetermined focal point on or through the boiler tank, where the boiler tank has heat applied to increase the pressure used to operate the turbine.