The hybrid desalination and energy production system includes a desalination system for separating seawater into purified water and brine, an electrodialysis system for treating the brine and outputting low salinity water, a hypersaline brine solution, and H.sub.2 gas; an evaporator for treating the hypersaline brine solution and outputting salt and water vapor; a superheater for treating the water vapor and outputting a superheated water vapor; a turbine for receiving the superheated water vapor to generate energy; a gas scrubber for receiving the H.sub.2 gas from the electrodialysis system and producing dry hydrogen; and a hydrogen cell for receiving the dry hydrogen and outputting energy. A condenser converts the vapor into condensate and low salinity water. A desalinated water collection tank receives the desalinated or low salinity water. A pressure retarded osmosis system receives the brine, the low salinity water, and condensate from the condenser to produce dilute brine.

A steam turbine 1 includes a turbine body 11 which includes a rotor 5 which is configured to rotate around an axis Ac, and a casing 6 which covers the rotor 5 to form a flow path through which steam flows in an axis Ac direction, together with the rotor 5, a thermal insulation member 12 which is provided to be in contact with an outer surface of the casing 6 in a high-pressure side region 61 out of the high-pressure side region 61 and a low-pressure side region 62 of the steam in the axis Ac direction of the casing 6, and a soundproof cover 13 which covers the low-pressure side region 62 out of the high-pressure side region 61 and the low-pressure side region 62 via a space between the outer surface of the casing 6 and the soundproof cover 13.

A system for reheating a power generation system including a boiler having a waterwall and a steam drum with an input fluidly coupled to the waterwall and an auxiliary heat source to provide heated fluid. The system also includes a first flow control valve connected to the auxiliary heat source and the boiler to control a flow of heated fluid from the auxiliary heat source to the waterwall; a first isolation valve disposed at a waterwall, to isolate circulation of heated fluid from the steam drum to the waterwall; and a sensor to monitor at least one operating characteristic in the boiler. The system also includes a controller to control at least one of the flow control valve, the isolation valve, and the auxiliary heat source to control the amount of heated fluid supplied to the waterwall when the boiler is not generating steam.

Thermal battery systems for management (e.g., load management) of electrical power sources, and related methods, are generally described. Thermal battery systems in certain embodiments have an electric heater, a thermal storage system, a heat exchange system and an electricity generator. The electric heater is configured to be connected in electrical communication with an electric power source, such as an electric power grid and to heat the thermal storage system. The electric heater may be a separate unit from the thermal storage system and heat the thermal storage system indirectly by heating a first fluid that is circulated through the thermal storage system during charging, or the electric heater may be integrated directly into the thermal storage system to heat it directly. The thermal storage system is configured to store thermal energy from the electric heater during a charging mode of the thermal storage system, and to heat the first fluid, which is then supplied to a heat exchange system during a discharging mode of the thermal storage system. The heat exchange system comprises at least one heat exchanger, and in some cases, at least a first and a second heat exchanger connected in series. The heat exchange system is positioned downstream from the thermal storage system and is configured to transfer heat from the heated first fluid to a second compressed fluid. The electricity generator may comprise at least one gas turbine and compressor. The compressor is configured to supply the second compressed fluid to the heat exchange system. The turbine is positioned with an inlet in fluid communication with and downstream from the heat exchange system so that the heated compressed second fluid is discharged from an outlet of the heat exchange system into the inlet of the turbine so that the turbine is able to generate electrical power therefrom. The power generated can be returned to the electrical power source, e.g., an electrical power grid.

The invention refers to a system for cooling a process fluid of a heat-producing apparatus, comprising: an outlet of the heat-producing apparatus, the outlet being provided for discharging process fluid to be cooled from the heat-producing apparatus; an inlet of the heat-producing apparatus, the inlet being provided for supplying cooled process fluid to the heat-producing apparatus; and a thermodynamic cycle device, in particular an ORC device, the thermodynamic cycle device comprising an evaporator having an inlet for supplying the process fluid to be cooled from the outlet of the heat-producing apparatus and having an outlet for discharging the cooled process fluid to the inlet of the heat-producing apparatus, the evaporator being adapted to evaporate a working medium of the thermodynamic cycle device by means of heat from the process fluid; an expansion machine for expanding the evaporated working medium and for producing mechanical and/or electrical energy; a condenser for liquefying the expanded working medium, in particular an air-cooled condenser; and a pump for pumping the liquefied working medium to the evaporator.

A gas turbine system includes a gas turbine and a water circuit. The water circuit includes a supply line fluidly coupling the low pressure economizer to a low pressure water supply. A connection line fluidly couples the low pressure evaporator to the low pressure economizer. A bypass supply line extends between the connection line and a heat exchanger. A bypass return line extends from the heat exchanger and includes a first return branch and a second return branch. The first return branch extends to the supply line. The second return branch extends to the connection line. At least one first diverter valve disposed on the bypass return line. The at least one first diverter valve operable to direct the flow of water towards one or both of the supply line and the connection line.

A combined cycle power plant that includes a gas turbine engine, a heat recovery steam generator (HRSG), a steam turbine, a primary condenser, a condensate extraction pump, a gland steam condenser, and a cooling module. The HRSG generates steam. The steam turbine receives steam from the HRSG. The primary condenser is fluidly coupled to the steam turbine and receives a first portion of exhaust steam from the steam turbine. The condensate extraction pump is fluidly coupled to the primary condenser and receives a condensed first portion of exhaust steam. The gland steam condenser is fluidly coupled to the steam turbine and receives a second portion of exhaust steam from the steam turbine. The cooling module is fluidly coupled to the gland steam condenser and supplies a cooling fluid to the gland steam condenser. The cooling module is fluidly isolated from the condensate extraction pump.

A heat machine for realizing a heat cycle, operating with a thermal fluid includes a drive unit. A first rotor and a second rotor, each having three pistons slidable in an annular chamber, wherein the pistons delimit six variable-volume chambers. The drive unit includes a transmission to convert the rotary motion with first and second periodically variable angular velocities of said first and second rotor, offset from each other, into a rotary motion at a constant angular velocity. The heat machine further includes a compensation tank, to accumulate the compressed fluid from the drive unit, a regenerator to preheat the fluid, a heater to superheat the fluid circulating in the serpentine coil, a burner, to supply the thermal energy to the heater; wherein the regenerator, in fluid communication with the drive unit, is configured to acquire energy-heat from the exhausted fluid and to preheat the fluid sent to the heater.

A heat machine for realizing a heat cycle, operating with a thermal fluid includes a drive unit. A first rotor and a second rotor, each having three pistons slidable in an annular chamber, wherein the pistons delimit six variable-volume chambers. The drive unit includes a transmission to convert the rotary motion with first and second periodically variable angular velocities of said first and second rotor, offset from each other, into a rotary motion at a constant angular velocity. The heat machine further includes a compensation tank, to accumulate the compressed fluid from the drive unit, a regenerator to preheat the fluid, a heater to superheat the fluid circulating in the serpentine coil, a burner, to supply the thermal energy to the heater; wherein the regenerator, in fluid communication with the drive unit, is configured to acquire energy-heat from the exhausted fluid and to preheat the fluid sent to the heater.

A combustion system with surface-less heat energy exchange for efficient heat energy capture and lower pollutant emission, comprising: a first line feeding an oxygen-rich reactive; a second line feeding a hydro-carbon fuel; a vessel containing feed-water; a combustion enclosure without a bottom wall submersed into the feed water contained in a vessel, the combustion enclosure configured to receive the feed from each of the first and second line and combust a mixture of the two feeds in a pocket formed between an inner top and side walls of the combustion enclosure and a top surface of the feed-water contained in the vessel; and the combustion within the pocket yielding a high temperature and high pressure combustion product and by-product directly into the feed-water of the vessel.