Abstract: A steam engine in which a liquid and a steam are jetted so that a rotor is turned by the reaction thereof, and the rotor having a well-balanced simple structure. In the steam engine, the rotor 5 having a plurality of bent flow paths 53A to 53D arranged at regular intervals therein is rotatably supported in a closed container 1 filled with the liquid being fitted onto a boss portion 11 of the closed container 1. The boss portion 11 is alternately forming slide-contact portions 11A having a steam feed port and recessed portions 11B. The steam fed into the bent flow path 53 from the steam feed port causes the liquid in the flow path to be jetted outward to rotate the rotor 5. The rotor 5 is of a point-symmetrical shape in cross section free of unbalanced weight, has no moving part, and is simple in structure. When the bent flow path 53 communicates with the recessed portion 11B, the steam remaining in the flow path is cooled and disappears, and the flow path is filled with the liquid.

Abstract: Apparatus, systems and methods are provided for the improved use of waste heat recovery systems which utilize the organic Rankine cycle (ORC) to generate mechanical and/or electric power from waste heat of large industrial machines (prime movers) generating power from biofuel such as biogas produced during the anaerobic digestion process. Waste heat energy obtained from prime mover(s) is provided to one or more ORC system(s) which are operatively coupled to separate electrical generator(s). The ORC system includes a heat coupling subsystem which provides the requisite condensation of ORC working fluid by transferring heat from ORC working fluid to another process or system, such as anaerobic digester tank(s), to provide heat energy that enhances the production of fuel for the prime mover(s) without requiring the consumption of additional energy for that purpose.

Abstract: A rankine cycle system includes a heater configured to circulate a working fluid in heat exchange relationship with a hot fluid to vaporize the working fluid. A hot system is coupled to the heater. The hot system includes a first heat exchanger configured to circulate a first vaporized stream of the working fluid from the heater in heat exchange relationship with a first condensed stream of the working fluid to heat the first condensed stream of the working fluid. A cold system is coupled to the heater and the hot system. The cold system includes a second heat exchanger configured to circulate a second vaporized stream of the working fluid from the hot system in heat exchange relationship with a second condensed stream of the working fluid to heat the second condensed stream of the working fluid before being fed to the heater.

Abstract: The disclosed process and apparatus provide for air separation and steam generation in a combined system that comprises a steam system (10) and an air separation plant (9), wherein a feed air stream (1) is introduced into a multistage air compression system (101, 102, 103) having n stages (n>=3) and compressed to a first high pressure that is equal to the final pressure of the air compression system, and, at this final pressure, is introduced (8) into the air separation plant (9). An intercooler is arranged between an i-th stage (102) (1<=i<n) and an i+1-th stage (103) of the air compression system; there, the feed air stream (4) is cooled in indirect heat exchange with a feed water stream (11).

Abstract: A system configured to thermally regulate exhaust portions of a power plant system (e.g. steam turbine) is disclosed. In one embodiment, a system includes: a condenser adapted to connect to and thermally regulate exhaust portions of a steam turbine; and a cooling system operably connected to the condenser and adapted to supply a cooling fluid to the condenser, the cooling system including a solar absorption chiller adapted to adjust a temperature of the cooling fluid.

Abstract: The power output of a free piston Stirling engine mounted in a free casing configuration is controlled by having a spring drivingly linking the displacer to the casing and controllably varying the amplitude of reciprocation of the casing. A variable casing reciprocation restraint is linked to the casing for applying a variable restraining force to the casing. The restraining force is increased for decreasing the displacer amplitude of reciprocation and thereby decreasing the power output from the Stirling engine and the restraining force is decreased for increasing the displacer amplitude of reciprocation and thereby increasing the power output from the Stirling engine.

Abstract: A waste heat steam generator for a gas and steam turbine power plant is provided. The generator has economizer, evaporator and superheater heating surfaces which form a flow path and through which a flow medium flows. An overflow line branches off from the flow path and leads to injection valves arranged downstream at a flow side of a superheater heating surface in the flow path. The overflow line permits a brief power increase of a downstream steam turbine without resulting in an excessive loss in efficiency of the steam process. The brief power increase is permitted independently of the type of waste heat steam generator. The branch location of the overflow line is arranged upstream of an evaporator heating surface at the flow medium side and downstream of an economizer heating surface.

Abstract: Systems and methods are disclosed for a two-part system with a gas generator and a driven engine system. In the two-part system, the first part of the system is the gas generator which produces power to operate and drive an engine. The driven engine is considered the second part of this two-part system. This method includes operating a gas generator combustion chamber that receives fuel, oxidizer, and water; an igniter coupled to the combustion chamber; and a computer controller that includes-sensors to sense pressure and temperature in the combustion chamber, wherein the computer controller controls the amount of fuel, oxidizer, and water in the chamber, and actuates the igniter. The combustion of the fuel and oxidizer combined with the steam that is produced are used to drive an engine. The system may also use an auxiliary unit to assist in the functions of the gas generator and the driven engine.

Abstract: In one embodiment, a waste heat recovery system includes multiple organic Rankine cycle (ORC) systems arranged in a cascade configuration. Each ORC system includes a heat exchanger that transfers heat to the working fluid to vaporize the working fluid. Each ORC system also includes an integrated power module that expands the working fluid to generate electricity.

Abstract: Turbine exhaust steam, axially fed between counter-rotating radial flow disk turbines, separates into: (1) a radially inward flow of low enthalpy dry steam, and (2) a radially outward flow of high enthalpy steam, noncondensibles, and condensate. The radially inward flow goes to a conventional condenser. The radially outward flow loses enthalpy turning the disk turbines as it passes in the boundary layers against the disks, thus becoming low enthalpy dry steam, and the counter-rotation of the disks by impinging mass flow of condensate, high enthalpy steam, and noncondensibles sustains a cascade of dynamic vortex tubes in the shear layer between the boundary layers. The low enthalpy dry steam resulting from work being done flows into the condenser through the vortex cores of fractal turbulence. Condensate exits the periphery of the workspace, ready to be pumped back into the Rankine cycle.

Abstract: A method for converting heat from a heat source to mechanical energy is provided. The method comprises heating a working fluid E-1,1,1,4,4,5,5,5-octafluoro-2-pentene (E-HFO-1438mzz) and optionally 1,1,1,2,3-pentafluoropropane (HFC-245eb) using heat supplied from the heat source; and expanding the heated working fluid to lower the pressure of the working fluid and generate mechanical energy as the pressure of the working fluid is lowered. Additionally, a power cycle apparatus containing a working fluid to convert heat to mechanical energy is provided. The apparatus contains a working fluid comprising E-HFO-1438mzz and optionally HFC-245eb. A working fluid is provided comprising E-HFO-1438mzz and HFC-245eb. The working fluid (i) has a temperature of at least about 150° C.; (ii) further comprises Z-HFO-1438mzz; or both (i) and (ii).

Abstract: A system for warming up a steam turbine includes a gas turbine and a controller operably connected to the gas turbine. The controller is programmed to receive a plurality of measured input signals and control the gas turbine to produce an exhaust having a desired energy. A first measured input signal is reflective of a measured operating parameter of the gas turbine and a second measured input signal is reflective of an operating parameter of the steam turbine. A method for warming up a steam turbine includes sending a plurality of measured input signals to a controller, wherein a first measured input signal reflects a measured operating parameter of a gas turbine and a second measured input signal reflects an operating parameter of the steam turbine. The method further includes controlling the gas turbine based on the plurality of measured input signals and producing an exhaust from the gas turbine, wherein the exhaust has a desired energy.

Abstract: A fossil fuel-fired power station having a removal apparatus for carbon dioxide which is located downstream of a combustion facility and through which an offgas containing carbon dioxide may flow is provided. The removal apparatus comprises an absorption unit and a desorption unit. The desorption unit is connected to a renewable energy source.

Abstract: A coupling system for a hybrid energy plant including a heat-pump unit and a combined heat and power generation unit, having at least one coupling device for coupling the heat-pump unit and the combined heat and power generation unit. A device and a method provide a coupling for a heat-pump unit and a combined heat and power generation unit, in doing which, the highest possible overall efficiency and the lowest possible consumption of resources relative to already known uncoupled plants is ensured. At least one coupling device has an electrical coupling unit and/or a hydraulic coupling unit which are designed to be switchable for a coupling of the heat-pump unit and the combined heat and power generation unit. An energy-transformation system for generating heat and/or cold and a method for energy transformation having a coupling system are also provided.

Abstract: A process fluid cooler can extract thermal energy from a process fluid including carbon dioxide. An absorber can transfer carbon dioxide from the process fluid to a removal fluid. A reboiler can heat the removal fluid so as to cause carbon dioxide to be released from the removal fluid and outputted as part of a reboiler output stream. The reboiler can also output a heating fluid. A stripper condenser can extract thermal energy from the reboiler output stream so as to cause condensation of water associated with the reboiler output stream and to remove carbon dioxide therefrom. A compression system can remove thermal energy from carbon dioxide received from the stripper condenser. A heat engine can be configured to operate according to an organic Rankine cycle, receiving thermal energy from the heating fluid and/or extracted at the process fluid cooler, at the stripper condenser, and/or at the compression system.

Abstract: A rankine cycle system includes a heater configured to circulate a working fluid in heat exchange relationship with a hot fluid to vaporize the working fluid. A hot system is coupled to the heater. The hot system includes a first heat exchanger configured to circulate a first vaporized stream of the working fluid from the heater in heat exchange relationship with a first condensed stream of the working fluid to heat the first condensed stream of the working fluid. A cold system is coupled to the heater and the hot system. The cold system includes a second heat exchanger configured to circulate a second vaporized stream of the working fluid from the first system in heat exchange relationship with a second condensed stream of the working fluid to heat the second condensed stream of the working fluid before being fed to the heater.

Abstract: A novel engine for producing power from a temperature differential with additional benefits of low cost, high efficiency, quiet operation minimal wear of components, and the ability to produce power or cooling from low grade heat sources.

Abstract: A heat pump includes an evaporator 10 evaporating water; a steam compressor 1 compressing the vapor generated by the evaporator 10; a vapor supply duct 31 adapted to supply the vapor 30 compressed by the compressor 1 to steam-utilizing facility 2; a measuring device 91 for measuring a state of vapor between the evaporator 10 and the compressor 1; and a valve 81 adjusting an amount of vapor flowing in the compressor 1 based on information from the measuring device 91.

Abstract: A power generation device includes an enclosed circuit through which a working medium circulates. The working medium is heated at a first location in the enclosed circuit, and cooled at a second location. The differential heating and cooling causes the working medium to circulate within the enclosed circuit. The circulating medium is used to drive a turbine, which in turn may drive an electric generator.

Abstract: The invention relates to a drive system for a vehicle, comprising an internal combustion that releases mechanical and thermal energy and a device for converting the thermal energy, wherein the device is designed to directly convert thermal energy into electrical energy and to transfer thermal energy to a working medium intended to act on an expansion apparatus.

Abstract: A method for use with a gas distribution system in which a higher pressure gas is transported/distributed and reduced to a lower pressure gas for a gas distribution or transmission line, the method comprising pre-heating the higher pressure gas before it is reduced in pressure, using an energy recovery generator to generate electricity using the pre-heated higher pressure gas while reducing the gas pressure to a lower gas pressure, using a fuel cell power plant to generates electricity while producing heat that is used to pre-heat high pressure gas, and combining the electrical outputs of the energy recovery generator and the fuel cell power plant to generate a combined electrical output. The method also comprises the fuel cell power plant making the waste heat available to the gas pre-heater without using a combustion unit thereby increasing the system's electrical efficiency.

Abstract: A system for utilizing waste heat of an internal combustion engine via the Clausius-Rankine cycle process is provided that includes a circuit with lines containing a working medium, an evaporator heat exchanger which serves for evaporating the liquid working medium using waste heat of the internal combustion engine and which has an inlet opening for conducting the working medium into a flow duct and an outlet opening for conducting the working medium out of the flow duct, and the flow duct is divided into a plurality of flow duct parts connected hydraulically in parallel, an expansion machine, a condenser for liquefying the vaporous working medium, a collecting and compensating vessel for the liquid working medium, it is sought to be able to change the working medium substantially completely from a liquid state of aggregation to a gaseous state of aggregation at an evaporator heat exchanger.

Abstract: An installation and methods for storing and returning electrical energy. First and second lagged enclosures containing porous refractory material are provided through which a gas is caused to flow by causing the gas to flow through first and second compression/expansion groups interposed in the pipe circuit between the top and bottom ends, respectively, of the first and second enclosures, each compression/expansion group having a piston moved in translation in a cylinder, each group operating in a different mode, either in compression mode or in expansion mode, one of the two compression/expansion groups receiving a gas at a temperature that is higher than the other group, such that in compression mode it is driven by an electric motor that consumes electrical energy for storage E1, and in a thermodynamic engine mode it drives an electricity generator enabling the electrical energy ER to be returned.

Abstract: Power-generation plant equipment of the present invention is provided with a steam-flow-volume adjusting valve that is provided in a superheated-steam pipe on the upstream side of a steam turbine. During startup of the steam turbine, a controller of the power-generation plant equipment increases a degree of opening of the steam-flow-volume adjusting valve from a closed position, thus increasing the frequencies of the steam turbine and an exhaust-heat-recovery generator; and, after the frequency of the exhaust-heat-recovery generator reaches the frequency of a grid, the controller connects an exhaust-heat-recovery-side breaker to supply power to the grid, and also sets the degree of opening of the steam-flow-volume adjusting valve to a substantially fully-open position, thus, operating the steam turbine depending on the frequency of the grid.

Abstract: A thermodynamic cycle is disclosed and has a working fluid circuit that converts thermal energy into mechanical energy on hot days. A pump circulates a working fluid to a heat exchanger that heats the working fluid. The heated working fluid is then expanded in a power turbine. The expanded working fluid is then cooled and condensed using one or more compressors interposing at least two intercooling components. The intercooling components cool and condense the working fluid with a cooling medium derived at ambient temperature, where the ambient temperature is above the critical temperature of the working fluid.

Abstract: The present invention relates to a method of controlling a closed loop (10) performing a Rankine cycle for a motor vehicle, said loop comprising a circulation and compression pump (12) for a working fluid, a heat exchanger (14) swept by a hot source (16) for heating said working fluid, expansion means (22) for expanding the hot fluid and a cooling exchanger (26) swept by a cooling fluid (28) for cooling this working fluid. According to the invention, the method consists, after detecting a vehicle accident situation, in communicating the inside of the loop with the ambient air.

Abstract: A method of controlling a power system includes monitoring a load on an electrical grid, monitoring a power generation from one or more power producers connected to the electrical grid, wherein at least one of the one or more power producers is a power plant including a carbon dioxide capture system, and utilizing the carbon dioxide capture system of the one or more power producers as a operating reserve in response to an increase in the load on the electrical grid or a reduction in the power generation from one or more power producers connected to the electrical grid.

Abstract: A process (10) for co-producing synthesis gas and power includes in a synthesis gas generation stage, producing a hot synthesis gas and, in a nuclear power generation stage (12), heating a working fluid with heat generated by a nuclear reaction to produce a heated working fluid and generating power by expanding the heated working fluid using one or more turbines (16), with additional heating (14) of the heated working fluid by indirect transfer of heat from the hot synthesis gas to the heated working fluid.

Abstract: The present invention is directed at the thermodynamic property amplification of a given thermal supply, provided by hydrocarbon combustion or in the preferred application heat provided by low-grade geothermal energy from the earth, for a vapor power cycle. The present invention achieves the desired objectives by segregating the compressible supercritical energy stream from the heat exchanger (boiler) into hot and cool fractions using a vortex tube, where the hot temperature is elevated above the heat exchanger temperature; and adding back heat (enthalpy) to the cool stream increasing the cool temperature to that of the geothermal heat exchanger.

Abstract: A heat recovery system includes an engine coolant circuit and an exhaust gas recovery circuit. The engine coolant circuit uses an engine coolant fluid to cool an engine. The exhaust gas recovery circuit comprises a Rankine cycle system that uses a working fluid to convert heat from engine exhaust gases to energy. The engine coolant fluid comprises the working fluid such that the engine coolant circuit and an exhaust gas recovery circuit comprise a common circuit such that the Rankine cycle system recovers energy from exhaust gas heat and from engine coolant heat.

Abstract: A waste transformation and destruction apparatus includes a natural gas ignition system, a silica material bed, a heat transfer device, and a system for collecting plasma produced energy. A reaction formed by heat from ignition, carbon from the waste material, supercritical water, —OH radicals, and muons released from the silica bed transform the waste into a fuel. This fuel is more efficiently consumed by the complete combustion process resulting in near total elimination of the waste, increased energy production, and virtually no emissions.

Abstract: A system includes a gas turbine system, a thermal energy storage device, and a heat recovery system. The gas turbine system is powered by solar energy to generate a first amount of electric power. The thermal energy storage device is coupled to the gas turbine system. The thermal energy storage device is configured to selectively receive expanded exhaust gas from the gas turbine system and store heat of the expanded exhaust gas. The heat recovery system is coupled to the gas turbine system and the thermal energy storage device. The heat recovery system is selectively powered by at least one of the gas turbine system and the thermal energy storage device to generate a second amount of electric power.

Abstract: A cycle (100) for producing work from heat involves pressurizing a first working fluid (F1), and heating the first working fluid under pressure (102) to obtain a first vapor. A second working fluid (F2) is compressed (106) in a compressor (204a, 204b). The first vapor and the second vapor are then mixed (108) to form a third vapor (F3). Heat is thereby transferred directly between the vapors at a common pressure. The third vapor is expanded (112) to perform work. All or a portion of the third vapor is communicated (121) to a low pressure expansion zone (214, 215) where it functions as a refrigerant used to provide cooling for the third vapor, thereby facilitating the condensate of the first fluid to liquid extracted from the third vapor. Heat extracted during the condensate process is used for later performing work. The first fluid condensate is returned to the initial pressurizing step with capacity to again acquire heat that is useful for performing work.

Abstract: Techniques for generating power are provided. Such techniques involve a thermodynamic system including a housing, a turbine positioned in a turbine cavity of the housing, a compressor positioned in a compressor cavity of the housing, and an alternator positioned in a rotor cavity between the turbine and compressor cavities. The compressor has a high-pressure face facing an inlet of the compressor cavity and a low-pressure face on an opposite side thereof. The alternator has a rotor shaft operatively connected to the turbine and compressor, and is supported in the housing by bearings. Ridges extending from the low-pressure face of the compressor may be provided for balancing thrust across the compressor. Seals may be positioned about the alternator for selectively leaking fluid into the rotor cavity to reduce the temperature therein.

Abstract: During an adiabatic compressed air energy storage (ACAES) system's operation, energy imbalances may arise between thermal energy storage (TES) in the system and the thermal energy required to raise the temperature of a given volume of compressed air to a desired turbine entry temperature after the air is discharged from compressed air storage of the ACAES system. To redress this energy imbalance it is proposed to selectively supply additional thermal energy to the given volume of compressed air after it received thermal energy from the TES and before it expands through the turbine. The additional thermal energy is supplied from an external source, i.e. fuel burnt in a combustor. The amount of thermal energy added to the given volume of compressed air after it received thermal energy from the TES is much smaller than the amount of useful work obtained from the given volume of compressed air by the turbine.

Abstract: In a method for operating a fuel supply for a heat engine, in a first step the block valve (4) and the control valve (5) are closed, with the vent valve (7) closed. In a second step, the vent valve (7) is opened so that fuel volume (V1) which is present in the fuel line section (1?) and vent line (6?) can drain. In a third step, the vent valve (7) is closed. In a fourth step, the control valve (5) is opened. In a fifth step, the fuel volume (V1) is replenished by a pressure-driven backflow of fuel from the combustion process (3). In a sixth step, the control valve (5) is closed and then the vent valve (7) is opened, for draining of the replenished fuel volume (V1) which has been formed there on account of the action taken according to the fifth step.

Abstract: Systems and methods are described for removing thermal energy from power plant heat engines, storing, and then recovering the stored energy. The removed or stored thermal energy can raise the enthalpy of lower temperature heat sources for utilization in electric power generating plants. Included also are systems and methods for integrating and cascading multistage thermal energy storage to supply multiple heat users at different temperatures. The methods apply to power plants utilizing thermal energy from concentrated solar thermal energy collectors, fuel-fired heaters, or gas turbine-generator heat recovery units. Several embodiments use the stored energy to extend solar thermal power plant operation, particularly the bottom power cycle.

Abstract: The embodiments described herein include a system and a method. In a first embodiment, a system includes a controller configured to control power plant operations. The system further includes a heat recovery steam generator (HRSG) monitor communicatively coupled to the controller and configured to receive inputs corresponding to the power plant operations. The system additionally includes an HRSG life prediction model configured to predict an operating life for an HRSG component. The HRSG monitor uses the HRSG life prediction model and the inputs to communicate a control action to the controller.

Abstract: A system for generating energy includes a greenhouse; a greenhouse, a gasifier connected to the greenhouse, a carburetor connected to the gasifier and the greenhouse, and a generator connected to the carburetor. The generator is configured to generate electricity. The greenhouse is configured to convert carbon dioxide into oxygen by action of sunlight. The oxygen is utilized by the gasifier and generator.

Abstract: An apparatus for generating energy using sensible heat of an offgas during manufacture of molten iron and a method for generating energy using the same are provided. The method for generating energy includes i) providing an offgas discharged from an apparatus for manufacturing molten iron including a reduction reactor that provides reduced iron that is reduced from iron ore and a melter-gasifier that melts the reduced iron to manufacture molten iron; ii) converting cooling water into high pressure steam by contacting the cooling water with the offgas; and iii) generating energy from at least one steam turbine by supplying the high pressure steam to the steam turbine and rotating the steam turbine.

Abstract: A method to pre-heat gas at gas Pressure Reducing Stations. A first step involve providing at least one electrical line heater having a flow path for passage of natural gas through electrical heating elements. A second step involves passing the high pressure cold natural gas stream along electrical heating elements and heating it up before de-pressurization. A third step involves the expansion of the high pressure heated gas in a enclosed vessel that houses a gas expander and power generator. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure gas cools the power generator. This process results in the recovery of energy to replace the slipstream of natural that is presently used to pre-heat gas at Pressure Reduction Stations.

Abstract: Embodiments of the invention generally provide a heat engine system, a mass management system (MMS), and a method for regulating pressure in the heat engine system while generating electricity. In one embodiment, the MMS contains a tank fluidly coupled to a pump, a turbine, a heat exchanger, an offload terminal, and a working fluid contained in the tank at a storage pressure. The working fluid may be at a system pressure proximal an outlet of the heat exchanger, at a low-side pressure proximal a pump inlet, and at a high-side pressure proximal a pump outlet. The MMS contains a controller communicably coupled to a valve between the tank and the heat exchanger outlet, a valve between the tank and the pump inlet, a valve between the tank and the pump outlet, and a valve between the tank and the offload terminal.

Abstract: The invention relates to a method for converting heat energy into mechanical energy by means of a Rankine cycle. In the Rankine cycle the circulating working fluid is pumped to a pressure above its critical pressure prior to heat exchange with an external medium. During the heat exchange with the external medium, the working fluid is heated to a temperature above its critical temperature and sufficiently high for the working fluid to expand without partial condensation. The working fluid is then expanded and condensed. The maximum pressure of the working fluid is controlled by means of an expander controllable with regard to the mass flow rate of the working fluid and/or a pump controllable with regard to the mass flow rate of the working fluid.

Abstract: The present invention provides a method for operating a plurality of independent, closed cycle power plant modules each having a vaporizer comprising the steps of serially supplying a medium or low temperature source fluid to each corresponding vaporizer of one or more first plant modules, respectively, to a secondary preheater of a first module, and to a vaporizer of a terminal module, whereby to produce heat depleted source fluid; providing a primary preheater for each vaporizer; and supplying said heat depleted source fluid to all of said primary preheaters in parallel.

Abstract: A method for generating electric power and for producing gasoline from methanol, includes the steps of: synthesizing gasoline by reacting methanol under a catalyst; recovering heat generated from the gasoline synthetic reaction of methanol by cooling the reaction with coolant to vaporize the coolant; and generating electric power by using the coolant vapor produced in the heat recovery. The power generation step may include generating electric power with a plurality of steam turbines in series, e.g., a high-pressure turbine, a medium-pressure turbine, and a low-pressure turbine.

Abstract: Systems for regenerating an absorbent solution include steam produced by a boiler; a set of pressure turbines fluidly coupled to the boiler for receiving the steam, wherein the set of pressure turbines comprises a high pressure turbine, a medium pressure turbine and a low pressure turbine; and a regenerating system comprising a regenerator for regenerating a rich and/or semi-rich absorbent solution to form a lean absorbent solution in fluid communication with a reboiler, the regenerating system fluidly coupled to the set of pressure turbines, wherein steam from the low pressure turbine provides a heat source for preheating the rich or the semi-rich absorbent solution fed to the regenerator. Also disclosed are processes of use.

Abstract: A coal-fired power plant having a control unit including a first flow rate control valve for regulating a water flow rate of a water feed bypass system, a second flow rate control valve installed in an extraction pipe for extracting steam from a steam turbine, a first temperature sensor on a downstream side of a heat recovery device, and a second temperature sensor on a downstream side of a heat exchanger and the control unit regulates opening of the first and second flow rate control valves on the basis of an exhaust gas temperature detected by the first temperature sensor and a feed water temperature detected by the second temperature sensor. Accordingly, even when a recovery heat quantity of the heat recovery device installed on a gas duct is changed due to deterioration with age of a boiler, a reduction in plant reliability and plant efficiency can be suppressed.

Abstract: The present application provides a steam turbine system. The steam turbine system may include a high pressure section, an intermediate pressure section, a shaft packing location positioned between the high pressure section and the intermediate pressure section, a source of steam, and a cooling system. The cooling system delivers a cooling steam extraction from the source of steam to the shaft packing location so as to cool the high pressure section and the intermediate pressure section.

Abstract: An Advanced Uniflow Rankine Engine (“AURE”) that is effective and thermodynamically efficient at higher speeds (e.g., 400-1800 rpm) and has low torque output. This allows the AURE to be compact of size without the need for a massive foundation found in prior art steam engines. The AURE includes an admission valve assembly, a cylinder head/valve gear assembly, a cylinder/piston assembly, a crank shaft assembly, an external sump, and an integral condenser. The admission valve assembly includes a counterbalancing poppet valve and valve stem that creates counterbalanced unsupported areas that allow the poppet valve to operate at higher speeds. The AURE can be fueled by raw, unprocessed fuel, including biomass, to generate efficient energy in a smaller overall package.

Abstract: The vapour power plant with hermetic turbogenerator is claimed, such plant provided with the main thermal cycle that works with the low boiling point fluid, and characterized by an additional, internal working fluid cycle that serves to lubricate the slide bearings contained in said hermetic turbogenerator, said additional working fluid cycle consisting of the slide bearings supplying piping connected to the main working fluid cycle at the main cycle pump outlet, of the slide bearings housing, of the return piping that directs the main portion of the working fluid liquid from said slide bearing housing to the working fluid buffer container, and of the emergency slide bearings supply piping that connects said working fluid buffer container, through the emergency slide bearing supply pump, with said slide bearings supply piping, whereby non-return valves are provided before connection point of said slide bearings supply piping and said emergency slide bearings supply piping.