A well pumping apparatus including a discharge head (110), a drive string rod (130) in fluid communication with an inner cavity (142) of a production tubing (140), a pre-lubrication port (160) at the discharge head, and lubrication cups (134) installed along the drive string rod adjacent to sets of bearings (150) distributed along the drive string rod.
An energy storage system has a pressure vessel that is exposed to ambient temperatures and that contains a working fluid which is condensable at ambient temperatures (CWF); a liquid reservoir in communication with one of the vessels and containing a liquid that is unvaporizable in the reservoir and in the vessel; and apparatus for delivering the liquid from the reservoir to the vessel. The CWF is compressible within the vessel upon direct contact with the liquid and is storable in a liquid state after being compressed to its saturation pressure. In a method, at least some of the liquid located in the vessel is propelled by the CWF towards a turbine to produce power. In one embodiment, a module has a first vessel having at least four ports, a second vessel at ambient temperatures, and a flow control component operatively connected to a corresponding conduit for selectively controlling fluid flow.
An energy storage system has a pressure vessel that is exposed to ambient temperatures and that contains a working fluid which is condensable at ambient temperatures (CWF); a liquid reservoir in communication with one of the vessels and containing a liquid that is unvaporizable in the reservoir and in the vessel; and apparatus for delivering the liquid from the reservoir to the vessel. The CWF is compressible within the vessel upon direct contact with the liquid and is storable in a liquid state after being compressed to its saturation pressure. In a method, at least some of the liquid located in the vessel is propelled by the CWF towards a turbine to produce power. In one embodiment, a module has a first vessel having at least four ports, a second vessel at ambient temperatures, and a flow control component operatively connected to a corresponding conduit for selectively controlling fluid flow.
F02C 6/16 - Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
F02C 1/02 - Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being an unheated pressurised gas
An energy storage system has a pressure vessel that is exposed to ambient temperatures and that contains a working fluid which is condensable at ambient temperatures (CWF); a liquid reservoir in communication with one of the vessels and containing a liquid that is unvaporizable in the reservoir and in the vessel; and apparatus for delivering the liquid from the reservoir to the vessel. The CWF is compressible within the vessel upon direct contact with the liquid and is storable in a liquid state after being compressed to its saturation pressure. In a method, at least some of the liquid located in the vessel is propelled by the CWF towards a turbine to produce power. In one embodiment, a module has a first vessel having at least four ports, a second vessel at ambient temperatures, and a flow control component operatively connected to a corresponding conduit for selectively controlling fluid flow.
A well pumping apparatus including a discharge head (110), a drive string rod (130) in fluid communication with an inner cavity (142) of a production tubing (140), a pre-lubrication port (160) at the discharge head, and lubrication cups (134) installed along the drive string rod adjacent to sets of bearings (150) distributed along the drive string rod.
Turbine apparatus includes turbine wheels by which introduced motive fluid is expanded; a horizontally disposed turbine shaft which is rotatably supported by inlet-side and outlet-side bearings, such that the turbine wheels are fixedly connected to the turbine shaft between the inlet-side and outlet-side bearings; a turbine housing by which the turbine wheels and the outlet-side bearing are encased; and a bearing cartridge in which the inlet-side bearing is housed that is mounted externally to the turbine housing. The bearing cartridge is separable from the turbine housing to facilitate a maintenance operation when the inlet-side bearing is disengaged from the turbine shaft. In a method for accessing a malfunctioning inlet-side component contactable with the turbine shaft in order to perform a maintenance operation, the bearing cartridge is dismounted from a surface of the turbine housing and the bearing cartridge is axially displaced in a direction away from the turbine housing.
A geothermal district heating (DH) system includes a plurality of DH conduits each of the conduits extending to a corresponding heat consumer; means for delivering a DH-usable fluid through said plurality of DH conduits; a fluid circuit through which a geothermal fluid is flowable; and at least two heat exchangers, each of the heat exchangers configured to transfer heat directly or indirectly from the geothermal fluid to said DH-usable fluid with a total heat influx provided by the at least two heat exchangers to said DH-usable fluid that is sufficiently high to raise a temperature of the DH-usable fluid to a predetermined DH-usable temperature without need for any supplemental fossil fuel derived waste heat to be transferred to said DH-usable fluid.
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F01K 17/02 - Use of steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
A geothermal power plant related maintenance support system comprises: a thermodynamic calculation module for determining performance of specified geothermal power plant components; a plurality of. embedded sensors, each of which is embedded in a different geothermal power plant location and adapted to sense a corresponding real-time geothermal power plant parameter; a plurality of environmental sensors adapted to sense ambient conditions in the vicinity of the geothermal power plant; and a processor in data communication with each of said embedded sensors and environmental sensors.
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
9.
System and method for increasing power output from an organic vapor turbine
A binary power plant system, comprising: a vaporizer for vaporizing an organic motive fluid circulating in a closed Organic Rankine Cycle (ORC) by a heat source fluid in heat exchange relation therewith and producing wet organic motive fluid vapor having a quality of at least approximately 80 percent; and a single organic vapor, turbine of said ORC: having an inlet for receiving the wet organic motive fluid vapor, wherein organic motive fluid vapor is expanded in said single organic vapor turbine without causing turbine blades of the turbine to be subjected to erosion.
F01K 7/18 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbine being of multiple-inlet-pressure type
F03G 4/00 - Devices for producing mechanical power from geothermal energy
F01K 21/00 - Steam engine plants not otherwise provided for
F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
A geothermal district heating (DH) system includes a plurality of DH conduits each of the conduits extending to a corresponding heat consumer; means for delivering a DH-usable fluid through said plurality of DH conduits; a fluid circuit through which a geothermal fluid is flowable; and at least two heat exchangers, each of the heat exchangers configured to transfer heat directly or indirectly from the geothermal fluid to said DH-usable fluid with a total heat influx provided by the at least two heat exchangers to said DH-usable fluid that is sufficiently high to raise a temperature of the DH-usable fluid to a predetermined DH-usable temperature without need for any supplemental fossil fuel derived waste heat to be transferred to said DH-usable fluid.
F01K 11/02 - Steam engine plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
F01K 17/02 - Use of steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F01K 27/02 - Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
F02C 6/18 - Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
A power plant through which motive fluid flows including a vapor turbine into which motive fluid vapor is introduced and expanded so that power is produced, and a horizontal air-cooled condenser (ACC) for receiving and condensing the expanded motive fluid discharged from said vapor turbine. The condenser includes a plurality of mutually parallel and spaced condenser tubes across which air for condensing the motive fluid flows that are disposed at an angle of inclination with respect to a horizontal plane of at least 5 degrees, such that accumulated liquid condensate is evacuated by gravitational forces.
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F01K 9/00 - Steam engine plants characterised by condensers arranged or modified to co-operate with the engines
F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid
F28D 1/06 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
12.
SYSTEM FOR OPTIMIZING AND MAINTAINING POWER PLANT PERFORMANCE
A geothermal power plant related maintenance support system comprises: a thermodynamic calculation module for determining performance of specified geothermal power plant components; a plurality of. embedded sensors, each of which is embedded in a different geothermal power plant location and adapted to sense a corresponding real-time geothermal power plant parameter; a plurality of environmental sensors adapted to sense ambient conditions in the vicinity of the geothermal power plant; and a processor in data communication with each of said embedded sensors and environmental sensors.
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F03G 7/00 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
A binary power plant system, comprising: a vaporizer for vaporizing an organic motive fluid circulating in a closed Organic Rankine Cycle (ORC) by a heat source fluid in heat exchange relation therewith and producing wet organic motive fluid vapor having a quality of at least approximately 80 percent; and a single organic vapor, turbine of said ORC: having an inlet for receiving the wet organic motive fluid vapor, wherein organic motive fluid vapor is expanded in said single organic vapor turbine without causing turbine blades of the turbine to be subjected to erosion.
F01K 21/00 - Steam engine plants not otherwise provided for
F01K 7/18 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbine being of multiple-inlet-pressure type
The present invention provides wind guiding vane apparatus for mitigating a detrimental influence of cross winds flowing in tire vicinity of an air-cooled condenser (ACC) and through one or more fans, positioned in lateral direction of the ACC., to which ambient air is directed and discharged to the atmosphere after cooling condenser tubes of the ACC, comprising: one or more stationary wind guiding vanes positioned along at least a portion of an air flow streamline and below a plurality of condenser tubes of the ACC, wherein said, one or more wind guiding vanes are configured to redirect air flow during windy conditions towards a portion of said plurality of condenser tubes and at least one of the fans at such an angle that significantly deviates from perpendicular, fairly horizontal inflow. The one or more wind guiding vanes are also suitable to maintain a nominal flow rate of air during quiescent wind conditions..
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
F28B 9/00 - Auxiliary systems, arrangements, or devices
F28F 13/06 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
The present invention provides wind guiding vane apparatus for mitigating a detrimental influence of cross winds flowing in the vicinity of an air-cooled condenser (ACC) and through one or more fans, positioned in lateral direction of the ACC, to which ambient air is directed and discharged to the atmosphere after cooling condenser tubes of the ACC, comprising one or more stationary wind guiding vanes positioned along at least a portion of an air flow streamline and below a plurality of condenser tubes of the ACC, wherein said one or more wind guiding vanes are configured to redirect air flow during windy conditions towards a portion of said plurality of condenser tubes and at least one of the fans at such an angle that significantly deviates from perpendicular, fairly horizontal inflow. The one or more wind guiding vanes are also suitable to maintain a nominal flow rate of air during quiescent wind conditions.
F28B 9/00 - Auxiliary systems, arrangements, or devices
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
A power plant through which motive fluid flows including a vapor turbine into which motive fluid vapor is introduced and expanded so that power is produced, and a horizontal air-cooled condenser (ACC) for receiving and condensing the expanded motive fluid discharged from said vapor turbine. The condenser includes a plurality of mutually parallel and spaced condenser tubes across which air for condensing the motive fluid flows that are disposed at an angle of inclination with respect to a horizontal plane of at least 5 degrees, such that accumulated liquid condensate is evacuated by gravitational forces.
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
A turbine shaft bearing apparatus in a turbine module includes two axially spaced turbine shaft bearings, including an outlet side bearing protected from overheating by a solid bearing housing which surrounds the outlet side bearing. The bearing housing being provided with a support including conduit for a lubricating medium. The turbine module has plurality of axially spaced turbine wheels connected to a common turbine shaft and coaxial therewith; an inlet through which motive fluid vapor is introduced to a first stage of the turbine wheels; a structured bleeding exit opening formed in an outer turbine casing of the turbine module; and a passage defined between two of the turbine wheels and in fluid communication with the bleeding exit opening, wherein expanded motive fluid vapor may be extracted through the structured bleeding exit opening and supplied to a heat exchange component for heating the motive fluid condensate.
F01K 7/34 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
F01K 7/38 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
F01D 5/06 - Blade-carrying members, e.g. rotors - Details thereof, e.g. shafts, shaft connections
F01D 25/16 - Arrangement of bearings; Supporting or mounting bearings in casings
The present invention provides a turbine shaft bearing apparatus comprising inlet side and outlet side bearings for providing support to a turbine shaft to which are connected a plurality of turbine wheels such that the turbine shaft, the two spaced bearings, and the plurality of turbine wheels are coaxial. The outlet side bearing is protected from overheating by the motive fluid by a solid bearing housing which includes a conduit through which a lubricating medium for lubricating said outlet side bearing is supplied. The present invention is also directed to a turbine module comprising a plurality of axially spaced turbine wheels, a structured bleeding exit opening formed in an outer turbine casing; and a passage defined between two of the turbine wheels and in fluid communication with the bleeding exit opening, wherein expanded motive fluid vapor is extracted through said structured bleeding exit opening for heating the motive fluid condensate.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Computer hardware and software, namely, fully integrated battery storage unit operating system programs operating on behalf of a client which are leased or purchased and in-front of the meter or behind the meter; Computer hardware and software, namely, fully integrated battery storage unit operating system providing functions for energy management, consulting, optimization, system scheduling in electricity markets, bidding into electricity markets, daily operations, value stacking, and settlements.
04 - Industrial oils and greases; lubricants; fuels
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
35 - Advertising and business services
Goods & Services
Renewable energy, namely, solar energy and geothermal energy Auxiliary power units for supplying electrical power to heat and power generators; energy solutions or energy systems, namely, power and electric generating systems, composed of engines, turbines, electric generators and structural parts thereof; retrofit systems for energy systems, namely, power and electric generating systems, composed of engines, turbines, electric generators and structural parts thereof; power units for supplying electrical power to remote locations Photovoltaic cells and modules; solar panels for production of electricity; energy storage systems comprised of electric storage battery units; battery storage systems comprised of battery packs; energy management systems comprised of electrical controlling devices; energy management and storage systems comprised of electric storage battery units; energy optimization systems comprised of electrical controlling devices; demand response systems comprised of electrical controlling devices Power plants; power plants, namely, energy recovery power plants, waste heat power plants and geothermal plants; solar power plants; energy storage systems, namely, energy storage plants Installation, repair and maintenance of power units, power generating systems, and power plants; plant construction, maintenance and construction project management services for businesses in the energy production and transmission sector Providing information in the fields of power generation, alternative energy generation, production of geothermal energy, and production of solar energy; energy generation services; production of energy Providing information in the field of design and development of geothermal power plants; technological consulting services in the fields of alternative energy generation, solar energy, energy storage, energy management, and demand response; research in the field of energy Energy usage management; energy usage management information services
04 - Industrial oils and greases; lubricants; fuels
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
35 - Advertising and business services
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Renewable energy, namely, solar energy and geothermal energy Auxiliary power units for supplying electrical power to heat and power generators; energy solutions or energy systems, namely, power and electric generating systems, composed of engines, turbines, electric generators and structural parts thereof; retrofit systems for energy systems, namely, power and electric generating systems, composed of engines, turbines, electric generators and structural parts thereof; power units for supplying electrical power to remote locations Photovoltaic cells and modules; solar panels for production of electricity; energy storage systems comprised of electric storage battery units; battery storage systems comprised of battery packs; energy management systems comprised of electrical controlling devices; energy management and storage systems comprised of electric storage battery units; energy optimization systems comprised of electrical controlling devices; demand response systems comprised of electrical controlling devices Power plants; power plants, namely, energy recovery power plants, waste heat power plants and geothermal plants; solar power plants; energy storage systems, namely, energy storage plants Energy usage management; energy usage management information services Installation, repair and maintenance of power units, power generating systems, and power plants; plant construction, maintenance and construction project management services for businesses in the energy production and transmission sector Providing information in the fields of power generation, alternative energy generation, production of geothermal energy, and production of solar energy; energy generation services; production of energy Providing information in the field of design and development of geothermal power plants; technological consulting services in the fields of alternative energy generation, solar energy, energy storage, energy management, and demand response; research in the field of energy
23.
Device and method for minimizing the effect of ambient conditions on the operation of a heat exchanger
A heat exchanger system for cooling liquid having a plurality of finned tube arrays and a plurality of fans for inducing air through the finned tube array comprising: at least one wind deflector installed along the long side of the finned tube arrays on at least one side of the arrays. The present invention for includes a method for minimizing the undesired effect of wind on the operation of a heat exchanger system for cooling liquid having a plurality of finned tube arrays and a plurality of fans for inducing air through the finned tube array, the method comprising the steps of: setting the angle of deflection of the wind deflectors other than the angle of deflection of the uppermost position of the wind deflectors; collecting readings of outlet temperature sensor of the heat exchanger, ambient temperature, wind sensor and inlet air pressure sensor of the heat exchanger; recording readings of outlet temperature sensor of the heat exchanger, ambient temperature, wind sensor and inlet air pressure sensor of the heat exchanger; comparing readings of outlet temperature sensor of the heat exchanger, ambient temperature, wind sensor and inlet air pressure sensor of the heat exchanger to previous readings; and carrying out a correction command if the readings have changed.
F28F 13/06 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
F24F 1/48 - Component arrangements in separate outdoor units characterised by airflow, e.g. inlet or outlet airflow
F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
F24F 130/00 - Control inputs relating to environmental factors not covered by group
09 - Scientific and electric apparatus and instruments
Goods & Services
Fully integrated battery storage unit operating system programs operating on behalf of a client which are leased or purchased and in-front of the meter or behind the meter; fully integrated battery storage unit operating system providing functions for energy management, consulting, optimization, system scheduling in electricity markets, bidding into electricity markets, daily operations, value stacking, and settlements
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer software for remote and on-site interactive performance monitoring and maintenance of power plants, namely, energy recovery power plants, waste heat power plants
42 - Scientific, technological and industrial services, research and design
Goods & Services
Software-as-a-service (SAAS) services, namely, providing temporary use of on-line non-downloadable software for performance monitoring and maintenance of power plants, namely, geothermal power plants
A waste heat recovery system includes a high pressure turbine and a low pressure turbine, in which the high pressure turbine receives high pressure working fluid vapor, the low pressure turbine receives low pressure working fluid vapor and the high pressure turbine also supplies low pressure working fluid vapor to the low pressure turbine. A recuperator receives working fluid vapor from the low pressure turbine. The recuperator produces heated condensate, at least a portion of which is provided to a high pressure vaporizer. The high pressure vaporizer is configured to receive from a high temperature heat source and produces high pressure working vapor used to power the high pressure turbine. The remaining condensed fluid is provided to a low pressure vaporizer which is configured to receive heat from a low-temperature heat source, thereby producing low pressure working fluid vapor used to power the low pressure turbine.
F01K 7/34 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
F01K 7/02 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
F01K 7/18 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbine being of multiple-inlet-pressure type
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
The present invention provides a cooling water supply system, comprising a condenser for cooling working fluid of a facility to a predetermined temperature; a cooling tower into which is injectable heated cooling water that has exited said condenser, for reducing the temperature of said heated cooling water primarily through evaporative cooling; a basin beneath said cooling tower, for receiving a non-evaporated portion of said heated cooling water discharged from the cooling tower; and flow control equipment for varying the level of a fluid characteristic of a water body of said cooling water within the basin, wherein the body of water, after achieving a predetermined low level of water fluid characteristic by said flow control equipment, remains at a sufficiently low temperature throughout a subsequent predetermined time period to generate a desired condensate temperature by a portion thereof that is delivered to said condenser, even when mixed with the cooling tower discharge which is of a higher temperature than the temperature of the body of water.
F28B 9/06 - Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid with provision for re-cooling the cooling water or other cooling liquid
In a method for supplying cooling water to a condenser under conditions where an evaporation rate of the cooling water is low during a certain time and is higher during other times, cooling water is delivered from a body of water underlying a cooling tower to the condenser. During the certain time when the evaporation rate of the cooling water is low, a level of the water in the body of water is controlled to a value such that a concentration of a contaminant in the body of water is low, and such that the temperature of the water in the body of water throughout the other times will assure a desired condensate temperature in the condenser throughout the other times. Then, a level of the water in the body of water during the other times is controlled to a value maintaining the low concentration of a dissolved solid and ions.
F28B 9/04 - Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid
F28B 1/02 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
F28B 9/06 - Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid with provision for re-cooling the cooling water or other cooling liquid
The present invention is directed to a system for generating power from fuel cell waste heat, comprising: at least one fuel cell module for generating power and producing waste heat; a bottoming cycle power block through which a motive fluid circulates to generate power; a waste heat heat-transfer unit for transferring heat from exhaust gases of the at least one fuel cell module to the bottoming cycle power block motive fluid thereby producing a desired combined power level from the at least one fuel cell module and the bottoming cycle power block.
H01M 14/00 - Electrochemical current or voltage generators not provided for in groups ; Manufacture thereof
F01K 25/14 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours using industrial or other waste gases
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
31.
Apparatus and method for preventing damage to a downhole pump impeller
A method for maintaining a downhole pump impeller of a geothermal downhole pump includes locating a line shaft to a selected depth, monitoring the depth of a lowermost distal end of the line shaft using a monitor positioned at a lowermost distal end of the line shaft, determining that the depth of the lowermost distal end of the line shaft has significantly changed, and taking a corrective action to return the depth of the lowermost distal end of the line shaft to the selected depth. The depth of the lowermost distal end is monitored by directing a beam of light emitted from a housing mounted on a outer portion of the downhole pump onto a plurality of reflective elements located on the line shaft distal end, and determining whether a receiver mounted in the outer portion receives light reflected from one of the plurality of reflective elements.
The present invention provides a method for selecting the location of a stimulating well, comprising the steps of conducting a geological study of a field containing a geothermal hydrothermal resource by operating geological useful equipment, determining a maximum horizontal stress line within said field by means of a device, generating a map of existing wells including a plurality of sub-commercial wells within said field relative to said maximum horizontal stress line, measuring a distance between each of said sub-commercial wells and the maximum horizontal stress line, determining that those sub-commercial wells aligned with, or located relatively close to the maximum horizontal stress line are stimulatable, and selecting a location of a stimulating well for stimulating the stimulatable well that is separated less than an anticipated fracture propagating distance from said stimulatable well.
The present invention provides a geothermal based heat utilization system for just about preventing scaling of geothermal fluid in a heat exchanger, comprising a mixing unit upstream to a heat exchanger of said system and in which separated brine, steam condensate and non-condensable gas portions are mixed so as to just about reconstruct the geothermal fluid to just about equilibrium conditions such that dissolved solids are assured not to precipitate in the heat exchanger.
C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
C02F 1/16 - Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F28F 19/00 - Preventing the formation of deposits or corrosion, e.g. by using filters
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
C02F 103/02 - Non-contaminated water, e.g. for industrial water supply
C02F 103/06 - Contaminated groundwater or leachate
The present invention provides a method for producing load-following power using low to medium temperature heat source fluid comprising the steps of reducing the power level produced by a Rankine cycle power plant producing load-following power operating on a low to medium temperature heat source fluid during one period of time.' storing heat not used during the first period of time; and using the heat stored for producing power during a second period of time.
F03G 6/00 - Devices for producing mechanical power from solar energy
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
35.
CASCADED POWER PLANT USING LOW AND MEDIUM TEMPERATURE SOURCE FLUID
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.
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
36.
Cascaded power plant using low and medium temperature source fluid
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.
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F01K 23/02 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
37.
Device and method for minimizing the effect of ambient conditions on the operation of a heat exchanger
A heat exchanger system for cooling liquid includes a generally rectangular arrangement of a plurality of horizontally spaced finned tube arrays arranged above the ground, the arrangement having longer sides extending in a length direction and shorter sides extending in a width direction. A plurality of fans are provided above the finned tube arrays for inducing air through the finned tube arrays, wherein at least two of said fans are mutually spaced in the width direction. At least one wind deflector is provided adjacent one of the longer sides, wherein the at least one wind deflector is installed on the ground separately from any of the plurality of finned tube arrays.
F28F 13/06 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
F24F 1/48 - Component arrangements in separate outdoor units characterised by airflow, e.g. inlet or outlet airflow
F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
The present invention is directed to a power plant system providing fast ramping up and ramping down for satisfying a load, comprising a turbine module operating in accordance with an organic Rankine cycle or steam power cycle coupled to a generator, the generator supplying power to satisfy the load, a main conduit through which motive fluid vapor heated in the organic Rankine cycle or steam is supplied to the turbine module, and a flow control component operatively connected to the main conduit and a flow control component controller responsive to load conditions for automatically increasing the flow of the motive fluid vapor or steam to the turbine module during ramping up conditions and for automatically limiting the flow of the motive fluid vapor or steam to said turbine module during ramping down conditions.
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
H02P 9/02 - Arrangements for controlling electric generators for the purpose of obtaining a desired output - Details
39.
Cascaded power plant using low and medium temperature source fluid
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.
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F01K 23/00 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
F01K 13/00 - General layout or general methods of operation, of complete steam engine plants
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
40.
Device and method for minimizing the effect of ambient conditions on the operation of a heat exchanger
For minimizing the effect of wind on a heat exchanger system having a plurality of finned tube arrays and a plurality of fans, a method includes providing a wind louver below one of the fans. The wind louver is arranged to divert wind flowing in an approximately horizontal direction below the one of the plurality of fans to instead flow in a direction that is more vertically upward as compared to the approximately horizontal direction. Readings of a heat exchanger outlet temperature, ambient temperature, wind, and inlet air pressure are collected and recorded, and compared to previous readings. The louver height is changed if the readings have changed.
F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
F24F 1/48 - Component arrangements in separate outdoor units characterised by airflow, e.g. inlet or outlet airflow
F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
The present invention is directed to a system for generating power from fuel cell waste heat, comprising: at least one fuel cell module for generating power and producing waste heat; a bottoming cycle power block through which a motive fluid circulates to generate power; a waste heat heat-transfer unit for transferring heat from exhaust gases of the at least one fuel cell module to the bottoming cycle power block motive fluid thereby producing a desired combined power level from the at least one fuel cell module and the bottoming cycle power block.
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
42.
METHOD AND APPARATUS FOR PRODUCING POWER FROM TWO GEOTHERMAL HEAT SOURCES
A method for producing power from two geothermal heat sources includes: separating a first geothermal fluid from a first geothermal heat source into geothermal vapor comprising steam and non-condensable gases, and geothermal brine; supplying the geothermal vapor to a vaporizer; vaporizing a preheated motive fluid using heat from the geothermal vapor, wherein the heat content in the geothermal vapor exiting the flash tank is only enough to vaporize the preheated motive fluid in the vaporizer; expanding the vaporized motive fluid in a vapor turbine producing power and expanded vaporized motive fluid; condensing the expanded vaporized motive fluid to produce condensed motive fluid; and preheating the condensed motive fluid in a preheater using heat from a second geothermal fluid from a second geothermal heat source having a lower temperature and salinity content that the first geothermal fluid, thereby producing the preheated motive fluid, make-up water and heat-depleted geothermal brine.
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
F01K 7/00 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
43.
Method and apparatus for producing power from two geothermal heat sources
A method for producing power from two geothermal heat sources includes: separating a first geothermal fluid from a first geothermal heat source into geothermal vapor comprising steam and non-condensable gases, and geothermal brine; supplying the geothermal vapor to a vaporizer; vaporizing a preheated motive fluid using heat from the geothermal vapor, wherein the heat content in the geothermal vapor exiting the flash tank is only enough to vaporize the preheated motive fluid in the vaporizer; expanding the vaporized motive fluid in a vapor turbine producing power and expanded vaporized motive fluid; condensing the expanded vaporized motive fluid to produce condensed motive fluid; and preheating the condensed motive fluid in a preheater using heat from a second geothermal fluid from a second geothermal heat source having a lower temperature and salinity content that the first geothermal fluid, thereby producing the preheated motive fluid, make-up water and heat-depleted geothermal brine.
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
44.
Fin configuration for air cooled heat exchanger tubes
An air cooled, finned heat exchanger tube includes a metallic tube through which fluid to be cooled is flowable. The tube has an outer surface on which axially spaced axial indentations are formed over its circumference, and a plurality of axially spaced fins each of which has a main element formed with heat transfer promoting patterns and a base angled with respect to said main element. The base is frictionally and irremovably secured within a corresponding indentation so that said tube outer surface is completely covered.
F28F 1/30 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
45.
Method and apparatus for stimulating a geothermal well
A method for stimulating a sub-commercial geothermal well includes steps of drilling a stimulating well; isolating a corresponding zone in the stimulating well using vertically spaced swell packers that are swellable when contacted by subterraneously heated geothermal brine present in the stimulating well and are resistant to the high temperature of the brine; injecting stimulating fluid into the stimulating well such that it will flow only through a zone of the well that is not isolated; and allowing the stimulating fluid to exit the well from a non-isolated zone located at a desired depth into a surrounding geological formation. The fracture or system of fractures within the formation is thereby hydraulically reopened.
The present invention provides a method for producing load-following power using low to medium temperature heat source fluid comprising the steps of: reducing the power level produced by a Rankine cycle power plant producing load-following power operating on a low to medium temperature heat source fluid during one period of time; storing heat not used during the first period of time; and using the heat stored for producing power during a second period of time.
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F03G 6/00 - Devices for producing mechanical power from solar energy
47.
METHOD AND APPARATUS FOR STIMULATING A GEOTHERMAL WELL
The present invention provides a method for stimulating a sub-commercial geothermal well, comprising the steps of drilling a stimulating well; isolating a corresponding zone in said stimulating well by means of a plurality of vertically spaced swell packers that are swellable when contacted by subterraneously heated geothermal brine present in said stimulating well and are resistant to the high temperature of said brine; injecting? stimulating fluid into said stimulating well such that it will flow only through a zone of said well that is not isolated; and allowing said stimulating fluid to exit said well from a non-isolated zone located at a desired depth into a surrounding geological formation in order to hydraulically reopen a fracture or a system of fractures within said formation at said desired depth that will be connected with said existing well to be stimulated.
The present invention provides a method for selecting the location of a stimulating well, comprising the steps of conducting a geological study of a field containing a geothermal hydrothermal resource by operating geological useful equipment, determining a maximum horizontal stress line within said field by means of a device, generating a map of existing wells including a plurality of sub- commercial wells within said field relative to said maximum horizontal stress line, measuring a distance between each of said sub-commercial wells and the maximum horizontal stress line, determining that those sub-commercial wells aligned with, or located relatively close to the maximum horizontal stress line are stimulatable, and selecting a location of a stimulating well for stimulating the stimulatable well that is separated less than an anticipated fracture propagating distance from said stimulatable well.
The present invention comprises a multi-pass air-cooled condenser, comprising a first-pass bundle of heat exchanger tubes into which working fluid containing non-condensable gas (NCG) is introducible at such a velocity to ensure that a NCG portion of said working fluid will remain together with a non-NCG portion of said working fluid even after being air cooled and from which said working fluid is extractable to another bundle of heat exchanger tubes maintaining a temperature of said extracted working fluid close to the condensation temperature of said non-NCG portion, wherein said NCG portion is separable from said non-NCG portion in a final-pass bundle of heat exchanger tubes of said condenser such that the percentage of separated NCGs in said final-pass tubes is significantly greater than the percentage of NCGs in said first-pass bundle.
The present invention provides a geothermal based heat utilization system for just about preventing scaling of geothermal fluid in a heat exchanger, comprising a mixing unit upstream to a heat exchanger of said system and in which separated brine, steam condensate and non-condensable gas portions are mixed so as to just about reconstruct the geothermal fluid to just about equilibrium conditions such that dissolved solids are assured not to precipitate in the heat exchanger.
A power system for delivering a custom level of electrical power to an industrial or commercial facility includes a local generator connected to a turbine operating in accordance with an organic Rankine or steam Rankine cycle. The local generator has a capacity at least greater than a maximum anticipated power level needed for the electrical needs of a local industrial or commercial facility. One or more control devices are operatively connected to the local generator for regulating active and reactive power generated by the generator. A controller directs the one or more control devices to regulate the generator such that the active power and reactive power generated by the generator are sufficient to satisfy active and reactive load conditions of local industrial or commercial facilities. Also, a flow control component is operatively connected to the main conduit for automatically limiting the flow of the motive fluid to the turbine module during base load conditions and for automatically increasing the flow of the motive fluid to the turbine module during variable load conditions.
G05F 1/12 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac
F01K 13/02 - Controlling, e.g. stopping or starting
F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
H02P 9/02 - Arrangements for controlling electric generators for the purpose of obtaining a desired output - Details
52.
Method and apparatus for producing power from geothermal fluid
A method for producing power from geothermal fluid includes: separating the geothermal fluid in a flash tank into geothermal vapor comprising steam and non-condensable gases, and geothermal brine; supplying the geothermal vapor to a vaporizer; vaporizing a preheated motive fluid in the vaporizer using heat from the geothermal vapor to produce heat-depleted geothermal vapor and vaporized motive fluid, wherein the heat content in the geothermal vapor exiting the flash tank is only enough to vaporize the preheated motive fluid in the vaporizer; expanding the vaporized motive fluid in a vapor turbine producing power and expanded vaporized motive fluid; condensing the expanded vaporized motive fluid in a condenser to produce condensed motive fluid; and preheating the condensed motive fluid in a preheater using heat from the heat-depleted geothermal vapor and the geothermal brine, thereby producing the preheated motive fluid, make-up water and heat-depleted geothermal brine.
F01K 27/00 - Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
F03G 7/00 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
53.
Cascaded power plant using low and medium temperature source fluid
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.
F03G 7/00 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
F01K 7/34 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
F01K 23/02 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
54.
METHOD AND APPARATUS FOR PRODUCING POWER FROM GEOTHERMAL FLUID
A method for producing power from geothermal fluid includes: separating the geothermal fluid in a flash tank into geothermal steam and non-condensable gases, and geothermal brine; supplying the geothermal vapor to a vaporizer; vaporizing a preheated motive fluid in the vaporizer using heat from the geothermal steam to produce geothermal steam condensate and vaporized motive fluid, wherein-the heat content in the geothermal steam exiting the flash tank is only enough to vaporize the preheated motive fluid in the vaporizer; expanding the vaporized motive fluid in a vapor turbine producing power and expanded vaporized motive fluid; condensing the expanded vaporized motive fluid in a condenser to produce condensed motive fluid; and preheating the condensed motive fluid in a preheater using heat from the geothermal steam condensate and the geothermal brine, thereby producing the preheated motive fluid, make¬ up water and heat-depleted geothermal brine.
An apparatus for maintaining the operation of a geothermal production pump having one or more impellers and a vertical line shaft for driving the impellers, includes a liquid buffer for isolating a discharge column through which pumped geothermal fluid including non-condensable gases flows from a lubrication column through which flows oil for lubricating one or more bearings of the line shaft, the liquid buffer being interposed between the discharge column and an outlet of the lubrication column to prevent infiltration of the non-condensable gases into the lubrication column. The liquid buffer includes an upper oil receiving section facing the lubrication column outlet and a lower securing element related to the upper oil receiving section. A lowermost bearing is a thrust bearing, and a bowl in which the cup structure and the thrust bearing are housed is in fluid communication with a further bowl in which is housed an uppermost impeller.
The present invention provides a hybrid geothermal power plant, comprising a photovoltaic module for generating direct current electrical power, a geothermal unit for utilizing heat content of a geothermal fluid extracted from a production well to produce power, and a controller for coordinating operation of the photovoltaic module and the geothermal unit such that the power plant generates a substantially uniform electrical output.
The present invention provides an apparatus for maintaining the operation of a geothermal production pump which comprises one or more impellers and a vertical line shaft for driving said one or more impellers, comprising a liquid buffer for isolating a discharge column through which pumped geothermal fluid including non-condensable gases flows from a lubrication column through which oil for lubricating one or more bearings of the line shaft flows, the liquid buffer being interposed between the discharge column and an outlet of the lubrication column to prevent infiltration of the non-condensable gases into the lubrication column.
A heat exchanger system for cooling liquid having a plurality of finned tube arrays and a plurality of fans for inducing air through the finned tube array comprising: at least one wind deflector installed along the long side of the finned tube arrays on at least one side of the arrays; and method for the same is also disclosed, including the steps of: setting the angle of deflection of the wind deflectors other than the angle of deflection of the uppermost position of the wind deflectors; collecting readings of outlet temperature sensor of the heat exchanger, ambient temperature, wind sensor and inlet air pressure sensor of the heat exchanger; recording the readings; comparing the to previous readings; and carrying out a correction command if the readings have changed.
F24F 13/15 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built-up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
F28F 13/06 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
59.
Device and method for minimizing the effect of ambient conditions on the operation of a heat exchanger
A method of minimizing the effect of wind on a heat exchanger system includes setting the pivot angle of a wind deflector to an initial angle; collecting and recording a current reading of one of an outlet temperature sensor, a wind speed sensor, an ambient temperature sensor, or a heat exchanger inlet air pressure sensor; comparing the current reading of the sensor to a previous reading; and changing the pivot angle of the wind deflector from an initial angle when the current sensor reading is changed from the previous reading.
F24F 1/48 - Component arrangements in separate outdoor units characterised by airflow, e.g. inlet or outlet airflow
F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
An apparatus for increasing the efficiency of a multi-heat source power plant includes a thermal collector having access to heat from a solar collector as a heat source for heating a fluid to a first temperature; a second heat source for heating the fluid; a heat exchanger that transfers heat to the fluid which is heated to said first temperature, to raise the temperature of the fluid to a higher temperature; and a power generation cycle using the fluid, heated to the first temperature, as a motive fluid.
The apparatus, systems and methods herein facilitate generation of energy-related revenue for an energy customer of an electricity supplier. The apparatuses and methods herein can be used to generate suggested operating schedules for the energy assets that including a controllable energy asset, using an objective function. The objective function is determined based on a dynamic simulation model of the energy profile of the energy assets. The dynamic simulation model is adaptive to physical changes in the energy assets based on a parametric estimation using at least one model parameter. The model parameter is at least one of an operation characteristic of the controllable energy asset, a thermodynamic property of the energy assets, and a projected environmental condition. Energy-related revenue available to the energy customer is based at least in part on a wholesale electricity market or on a regulation market.
The disclosure facilitates generation of energy-related revenue for an energy customer of an electricity supplier. The disclosure herein can be implemented to generate suggested operating schedules for energy assets that include a controllable energy asset, using an objective function. The objective function is determined based on a dynamic simulation model of the energy profile of the energy assets. The dynamic simulation model is adaptive to physical changes in the energy assets based at least in part on a physical model of the thermodynamic property of the at least one energy asset and at least in part on data representative of an operation characteristic of the controllable energy asset, a thermodynamic property of the energy assets, and/or a projected environmental condition. Energy-related revenue available to the energy customer is based at least in part on a wholesale electricity market or on a regulation market.
For increasing power plant efficiency during periods of variable heat input or at partial loads, a motive fluid is cycled through a Rankine cycle power plant having a vaporizer and a superheater such that the motive fluid is delivered to a turbine at a selected inlet temperature at full admission. A percentage of a superheated portion of the motive fluid is adjusted during periods of variable heat input or at partial loads while virtually maintaining the inlet temperature and power plant thermal efficiency.
F01K 13/02 - Controlling, e.g. stopping or starting
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F03G 6/06 - Devices for producing mechanical power from solar energy with solar energy concentrating means
64.
FACILITATING REVENUE GENERATION FROM DATA SHIFTING BY DATA CENTERS
The disclosure facilitates management data center utilization for generating energy-related revenue from energy markets. Operating schedules are generated, over a time period (T), for operation of an energy management system of energy assets of data center sites. Since CPU utilization (or computing load) can be correlated to energy consumption, the operating schedules can cause the energy management system to modulate the CPU utilization (or computing load) of energy assets within a data center, or to indicate shifting of CPU utilization (or computing load) from one data center site in a certain energy market price region to another data center site in a different energy market price region. When implemented, the generated operating schedules facilitates derivation of the energy-related revenue, over a time period (T), associated with operation of the energy assets according to the generated operating schedule.
In a method for increasing power plant efficiency during periods of variable heat input or at partial loads, a motive fluid is cycled through a Rankine cycle power plant having a vaporizer and a superheater such that the motive fluid is delivered to a turbine at a selected inlet temperature at full admission. A percentage of a superheated portion of the motive fluid during periods of variable heat input or at partial loads is adjusted while substantially maintaining the inlet temperature and a power plant thermal efficiency. A Rankine Cycle power plant includes a conduit circuit extending from a heat source to each of a vaporizer section and a superheater section for regulating flow therethrough of source heat fluid.
F01K 13/02 - Controlling, e.g. stopping or starting
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
A solar power plant in a new split configuration of a solar Brayton cycle or Brayton/Rankine combined cycle which comprises an array of heliostat mounted mirrors, a solar receiver and a high pressure section of a Brayton cycle power plant mounted near a top of a solar tower, a low pressure section of the Brayton Cycle power plant and the electric generator mounted near or at ground, level.
A method for increasing power plant efficiency during periods of variable heat input or at partial loads is described, comprising the steps of cycling a motive fluid through a Rankine cycle power plant having a vaporizer and a superheater such that the motive fluid is delivered to a turbine at a selected inlet temperature at full admission; and adjusting a percentage of a superheated portion of the motive fluid during periods of variable heat input or at partial loads while virtually maintaining the inlet temperature and power plant thermal efficiency. Furthermore, a power plant is described having increased efficiency during periods of variable heat input or at partial loads.
A solar power plant in a new split configuration of a solar Brayton cycle or Brayton/Rankine combined cycle which comprises an array of heliostat mounted mirrors, a solar receiver and a high pressure section of a Brayton cycle power plant mounted near a top of a solar tower, a low pressure section of the Brayton Cycle power plant and the electric generator mounted near or at ground level.
The present invention provides a method for preventing damage to a downhole pump impeller of a downhole pump such as a geothermal downhole pump, comprising the steps of setting a rotatable part of a downhole pump to a selected depth, monitoring the depth of the rotatable part, determining that the depth of the rotatable part has significantly changed, and taking a corrective action to return the depth of the rotatable part to said selected depth in order to prevent damage to an impeller that is liable to be caused by a change in depth of the rotatable part. The present invention is also directed to a downhole pump such as a geothermal downhole pump, comprising a line shaft, an impeller engaged with the line shaft for pressurizing fluid to be extracted from a well, and monitoring apparatus for monitoring the depth of a distal end of the line shaft in order to prevent damage to the impeller that is liable to be caused by a change in depth of the distal end.
A method for preventing damage to a downhole pump impeller of a downhole pump includes setting a rotatable part of a downhole pump to a selected depth, monitoring the depth of the rotatable part, determining that the depth of the rotatable part has significantly changed, and taking a corrective action to return the depth of the rotatable part to said selected depth in order to prevent damage to an impeller that is liable to be caused by a change in depth of the rotatable part. The downhole pump further has a line shaft, an impeller engaged with the line shaft for pressurizing fluid to be extracted from a well, and monitoring apparatus for monitoring the depth of a distal end of the line shaft in order to prevent damage to the impeller that is liable to be caused by a change in depth of the distal end.
The present invention provides a power and regasification system based on liquefied natural gas (LNG), comprising a vaporizer by which liquid motive fluid is vaporized, said liquid motive fluid being LNG or a motive fluid liquefied by means of LNG; a turbine for expanding the vaporized motive fluid and producing power; heat exchanger means to which expanded motive fluid vapor is supplied, said heat exchanger means also being supplied with LNG for receiving heat from said expanded fluid vapor, whereby the temperature of the LNG increases as it flows through the heat exchanger means; a conduit through which said motive fluid is supplied from at least the outlet of said heat exchanger to the inlet of said; and a line for transmitting regasified LNG.
F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
72.
FACILITATING REVENUE GENERATION FROM WHOLESALE ELECTRICITY MARKETS
The apparatus, systems and methods herein facilitate generation of energy-related revenue for an energy customer of an electricity supplier. The apparatuses and methods herein can be used to generate operating schedules for a controller of the energy assets. When implemented, the generated operating schedules facilitates derivation of the energy-related revenue, over a time period T, associated with operation of the energy assets according to the generated operating schedule. The energy-related revenue available to the energy customer over the time period T is based at least in part on a wholesale electricity market.
Apparatus, systems, and methods are described that can be used to generate an operating schedule for a controller of an energy storage asset that is in communication with a transport vehicle, based on an optimization process. The operating schedule is generated based on an operation characteristic of the energy storage asset, an energy-generating capacity of the transport vehicle in communication with the energy storage asset based on a motion of the transport vehicle, and a price associated with a market (including a regulation market and/or an energy market). Operation of the energy storage asset according to the generated operating schedule facilitates derivation of energy-related revenue, over a time period T. The energy-related revenue available to the energy customer over the time period T is based at least in part on the regulation market and/or the energy market.
A system for timely standby power generation supplementing a solar array during periods of cloud coverage, including a power plant comprising solar arrays for normal power production during periods of maximum or reduced solar influx, and distributed generating sets (DGS) for standby power generation to supplement the solar arrays during periods of cloud coverage. A weather station has sensors for acquiring real-time meteorological data in the vicinity of the power plant and a processor for processing the acquired meteorological data so as to generate data related to a solar influx reduction event at the power plant including an event starting time. A controller receives the event data from the processor and operating the DGS in response to the received event data.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
75.
Cascaded power plant using low and medium temperature source fluid
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.
F01K 13/00 - General layout or general methods of operation, of complete steam engine plants
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
F03G 7/00 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
76.
CASCADED POWER PLANT USING LOW AND MEDIUM TEMPERATURE SOURCE FLUID
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.
F01K 23/02 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
A power system includes a Rankine cycle local generator having a capacity greater than a maximum anticipated power level. One or more control devices are operatively connected to the local generator for regulating active and reactive power generated by the generator. Detectors are provided to sense active and reactive voltages. The controller directs the control devices to regulate the generator such that the active power and reactive power are sufficient to satisfy the active and reactive load conditions.
F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
F01K 13/02 - Controlling, e.g. stopping or starting
H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
A heliostat includes a heliostat frame and a plurality of reflective surfaces, each reflective surface is movably mounted within the heliostat frame. The heliostat also includes a plurality of actuators, wherein each individual actuator of the plurality of actuators is associated with a single reflective surface of the plurality reflective surfaces and capable of moving the single reflective surface.
H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
F24J 2/38 - employing tracking means (F24J 2/02, F24J 2/06 take precedence;rotary supports or mountings therefor F24J 2/54;supporting structures of photovoltaic modules for generation of electric power specially adapted for solar tracking systems H02S 20/32)
H01L 31/054 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
A geothermal based, binary cycle power plant is provided, comprising: a vaporizer for vaporizing pre-heated organic motive fluid by means of geothermal steam; two organic vapor turbines operating in parallel and coupled to a common generator, each of said turbines being driven by vaporized organic motive fluid supplied to each turbine; two recuperators for heating the organic motive fluid by means of a corresponding organic vapor turbine discharge; and two condensers for condensing heat depleted motive fluid exiting said two recuperators, respectively. A geothermal steam condensate recovery system is also provided, comprising a source of geothermal steam for vaporizing a organic motive fluid and producing geothermal steam condensate, and conduit means through which geothermal steam condensate is delivered to a supply of cooling liquid used to condense the organic motive fluid, the delivered geothermal steam condensate serving as make-up liquid for evaporated cooling liquid.
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
80.
METHODS, APPARATUS AND SYSTEMS FOR MANAGING ENERGY ASSETS
The apparatuses and methods herein facilitate generation of energy-related revenue for an energy customer of an electricity supplier, for a system that includes an energy storage asset. The apparatuses and methods herein can be used to generate operating schedules for a controller of the energy storage asset. When implemented, the generated operating schedules facilitates derivation of the energy-related revenue, over a time period T, associated with operation of the at least one energy storage asset according to the generated operating schedule. The energy-related revenue available to the energy customer over the time period T is based at least in part on a wholesale electricity market.
A geothermal based, binary cycle power plant is provided, comprising: a vaporizer for vaporizing pre-heated organic motive fluid by means of geothermal steam; two organic vapor turbines operating in parallel and coupled to a common generator, each of said turbines being driven by vaporized organic motive fluid supplied to each turbine; two recuperators for heating the organic motive fluid by means of a corresponding organic vapor turbine discharge; and two condensers for condensing heat depleted motive fluid exiting said two recuperators, respectively.
A geothermal steam condensate recovery system is also provided, comprising a source of geothermal steam for vaporizing a organic motive fluid and producing geothermal steam condensate, and conduit means through which geothermal steam condensate is delivered to a supply of cooling liquid used to condense the organic motive fluid, the delivered geothermal steam condensate serving as make-up liquid for evaporated cooling liquid.
The present invention is a diagnostic method for determining the operability of an essential turbine valve, including the steps of exercising an essential valve operatively connected to a turbine inlet line through which a power plant motive fluid is supplied to a turbine by causing the essential valve to be partially closed for a predetermined exercising duration; detecting a drop in power produced by an electric generator coupled to the turbine resulting from said partial closing of the essential valve; comparing the detected power drop with a predetermined marginal power drop; and associating the essential valve with an operable status for reliably regulating the flow of motive fluid therethrough when the actual power drop is substantially equal to the predetermined marginal power drop.
A dynamic electrical load model for an HVAC chiller for use in demand response applications is described herein. A dynamic model for coupling a building's electrical and thermal characteristics is described. This allows for more accurate planning of the dispatching of load for demand side response.
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
A method and system are presented for storing solar collected heat and using the stored heat to produce power. The method includes diverting solar heated fluid at a temperature greater than a power plant block (PPB) temperature from a heat transfer circuit to a liquid water storage medium maintained at a temperature less than the PPB temperature and thermally storing the heated portion; and transferring heat from the liquid water storage medium to a fluid during periods of decreased solar radiation levels to produce power by the heatedtransfer fluid. The solar thermal storage system includes a hot water storage medium (HWSM), a cold water storage medium (CWSM), conduit means interconnecting the HWSM and said CWSM, and a storage medium heat exchanger for heating water flowing from the CWSM to the HWSM when the solar radiation is above a nominal value to establish a power plant block (PPB) temperature.
The present invention provides a waste heat recovery system, comprising a closed fluid circuit through which an organic motive fluid flows, heat exchanger means for transferring heat from waste heat gases to the motive fluid, means for flashing the motive fluid which exits the heat exchanger means into a high pressure flashed vapor portion, means for flashing liquid non-flashed motive fluid producing a low pressure flashed vapor portion, a high pressure turbine module which receives said high pressure flashed vapor portion, to produce power, and a low pressure turbine module which receives a combined flow of motive fluid vapor comprising the low pressure flashed vapor portion and discharge vapor from the high pressure turbine module whereby additional power is produced.
F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
86.
Organic motive fluid based waste heat recovery system
A waste heat recovery system includes a closed fluid circuit through which an organic motive fluid flows, and a heat exchanger for transferring heat from waste heat gases to the motive fluid. A first flashing unit flashes the motive fluid which exits the heat exchanger into a high pressure flashed vapor portion. Another flashing unit flashes liquid non-flashed motive fluid, producing a low pressure flashed vapor portion. A high pressure turbine module receives the high pressure flashed vapor portion to produce power, and a low pressure turbine module receives a combined flow of motive fluid vapor comprising the low pressure flashed vapor portion and discharge vapor from the high pressure turbine module whereby additional power is produced.
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
87.
ORGANIC MOTIVE FLUID BASED WASTE HEAT RECOVERY SYSTEM
The present invention provides a waste heat recovery system, comprising a closed fluid circuit through which an organic motive fluid flows, heat exchanger means for transferring heat from waste heat gases to the motive fluid, means for flashing the motive fluid which exits the heat exchanger means into a high pressure flashed vapor portion, means for flashing liquid non-flashed motive fluid producing a low pressure flashed vapor portion, a high pressure turbine module which receives said high pressure flashed vapor portion, to produce power, and a low pressure turbine module which receives a combined flow of motive fluid vapor comprising the low pressure flashed vapor portion and discharge vapor from the high pressure turbine module whereby additional power is produced.
F01K 25/00 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
A power system is provided for delivering a custom Ievel of electrical power to an industrial or commercial facility, comprising a local generator connected to a turbine operating in accordance with an organic Rankine cycle, the local generator having a capacity at least greater than a maximum anticipated power Ievel needed for the electrical needs or a local industrial or commercial facility. One or more control devices are provided for operatively connected to the local generator for regulating active and reactive power generated by the generator for a detector for sensing active voltage induced by said generator. The power system can also function as a fast acting spinning reserve.
A power system is provided for delivering a custom Ievel of electrical power to an industrial or commercial facility, comprising a local generator connected to a turbine operating in accordance with an organic Rankine cycle, the local generator having a capacity at least greater than a maximum anticipated power Ievel needed for the electrical needs or a local industrial or commercial facility. One or more control devices are provided for operatively connected to the local generator for regulating active and reactive power generated by the generator for a detector for sensing active voltage induced by said generator. The power system can also function as a fast acting spinning reserve.
F01K 25/00 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
A power system is provided for delivering a custom level of electrical power to an industrial or commercial facility, comprising a local generator connected to a turbine operating in accordance with an organic Rankine cycle, the local generator having a capacity at least greater than a maximum anticipated power level needed for the electrical needs of a local industrial or commercial facility, one or more control devices operatively connected to the local generator for regulating active and reactive power generated by the generator, a detector for sensing active voltage induced by said generator, a detector for sensing reactive voltage produced by the generator, and a controller in electrical communication with said one or more control devices and with the active and reactive voltage detectors, wherein the controller directs the one or more control devices to regulate the generator such that the active power and reactive power generated by the generator are sufficient to satisfy active and reactive load conditions, of local industrial or commercial facilities. The present invention is also directed to a power system for providing a fast acting spinning reserve, comprising a turbine module of a organic Rankine cycle that is coupled to a generator, a main conduit through which motive fluid heated in said thermodynamic cycle is delivered to the turbine module, and a flow control component operatively connected to said main conduit for automatically limiting the flow of the motive fluid to the turbine module during base load conditions and for automatically increasing the flow of the motive fluid to the turbine module during variable load conditions.
A closed Rankine cycle power plant using an organic working fluid includes a solar trough collector for heating an organic working fluid, a flash vaporizer for vaporizing the heated organic working fluid, a turbine receiving and expanding the vaporized organic working fluid for producing power or electricity, a condenser for condensing the expanded organic working fluid and a pump for circulating the condensed organic working fluid to the solar trough collector. Heated organic working fluid in the flash vaporizer that is not vaporized is returned to the solar trough collector.
B60K 16/00 - Arrangements in connection with power supply of propulsion units in vehicles from forces of nature, e.g. sun or wind
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F03G 7/00 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
A gas turbine exhaust gas cooling system includes a conduit for a primary gas turbine exhaust gas extending from the primary gas turbine to an inlet of a desired industrial process apparatus, a work producing thermodynamic cycle in which a working fluid is heated and expanded, and at least one heat exchanger by which heat is sufficiently transferred from the primary gas turbine exhaust gas to the working fluid to produce a low temperature heating medium downstream of the heat exchanger at a predetermined temperature and energy level which are sufficient for effecting a desired industrial process.
F02C 7/08 - Heating air supply before combustion, e.g. by exhaust gases
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F02C 6/18 - Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
A gas turbine exhaust gas cooling system includes a conduit for a primary gas turbine exhaust gas extending from the primary gas turbine to an inlet of a desired industrial process apparatus, a work producing thermodynamic cycle in which a working fluid is heated and expanded, and at least one heat exchanger by which heat is sufficiently transferred from the primary gas turbine exhaust gas to the working fluid to produce a low temperature heating medium downstream of the heat exchanger at a predetermined temperature and energy level which are sufficient for effecting a desired industrial process.
A gas turbine exhaust gas cooling system includes a conduit for a primary gas turbine exhaust gas extending from the primary gas turbine to an inlet of a desired industrial process apparatus, a work producing thermodynamic cycle in which a working fluid is heated and expanded, and at least one heat exchanger by which heat is sufficiently transferred from the primary gas turbine exhaust gas to the working fluid to produce a low temperature heating medium downstream of the heat exchanger at a predetermined temperature and energy level which are sufficient for effecting a desired industrial process.
The present invention provides a waste heat recovery system, comprising: an internal combustion engine for supplying a high grade waste heat thermal resource fluid and a low grade waste heat thermal resource fluid; an intermediate thermal cycle by which an intermediate fluid is vaporized by means of the high grade waste heat thermal resource fluid and is expanded within a first turbine, whereby produce is produced; and an organic thermal cycle by which an organic motive fluid is preheated by means of the low grade waste heat thermal resource fluid and is vaporized by means of the discharge of the intermediate fluid from the first turbine, said vaporized organic motive fluid being expanded in a second turbine, whereby power is produced.
F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
F01K 25/00 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
A waste heat recovery system includes a high pressure turbine and a low pressure turbine, in which the high pressure turbine receives high pressure working fluid vapor, the low pressure turbine receives low pressure working fluid vapor and the high pressure turbine also supplies low pressure working fluid vapor to the low pressure turbine. A recuperator receives working fluid vapor from the low pressure turbine. The recuperator produces heated condensate, at least a portion of which is provided to a high pressure vaporizer. The high pressure vaporizer is configured to receive from a high temperature heat source and produces high pressure working vapor used to power the high pressure turbine. The remaining condensed fluid is provided to a low pressure vaporizer which is configured to receive heat from a low- temperature heat source, thereby producing low pressure working fluid vapor used to power the low pressure turbine.
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
The present invention provides a waste heat recovery system, comprising: an internal combustion engine for supplying a high grade waste heat thermal resource fluid and a low grade waste heat thermal resource fluid; an intermediate thermal cycle by which an intermediate fluid is vaporized by means of the high grade waste heat thermal resource fluid and is expanded within a first turbine, whereby produce is produced; and an organic thermal cycle by which an organic motive fluid is preheated by means of the low grade waste heat thermal resource fluid and is vaporized by means of the discharge of the intermediate fluid from the first turbine, said vaporized organic motive fluid being expanded in a second turbine, whereby power is produced.
F01K 25/00 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
For operating a multi-heat source power plant, including a thermal collector having access to heat from a solar collector as a first heat source for heating a first fluid to a first temperature, a topping power generation cycle using the first fluid as a motive fluid, and a geothermal second heat source for heating a second motive fluid, which is different from said first motive fluid, to a second temperature lower than the first temperature, a heat exchanger transfers heat from the first fluid to the second fluid to raise the temperature of the second fluid to a higher temperature. A bottoming power generation cycle uses said second fluid, heated to the higher temperature, as a motive fluid.
F03G 7/00 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
A waste heat recovery system includes a high pressure turbine and a low pressure turbine, in which the high pressure turbine receives high pressure working fluid vapor, the low pressure turbine receives low pressure working fluid vapor and the high pressure turbine also supplies low pressure working fluid vapor to the low pressure turbine. A recuperator receives working fluid vapor from the low pressure turbine. The recuperator produces heated condensate, at least a portion of which is provided to a high pressure vaporizer. The high pressure vaporizer is configured to receive from a high temperature heat source and produces high pressure working vapor used to power the high pressure turbine. The remaining condensed fluid is provided to a low pressure vaporizer which is configured to receive heat from a low-temperature heat source, thereby producing low pressure working fluid vapor used to power the low pressure turbine.
F01K 7/34 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
According to present invention, a method is provided for operating a multi-heat source power plant using a low-medium temperature heat source fluid, wherein the multi-heat source power plant includes a turbine or expander run by an organic motive fluid, comprising preheating the organic motive fluid using the low-medium temperature heat source fluid and thereafter providing further heat from an additional heat source to vaporize the motive fluid which is supplied to the turbine or expander Furthermore, in an embodiment of the present invention, the present invention provides an apparatus comprising a heat exchanger suitable to pre-heat an organic motive fluid with a low-medium temperature geothermal fluid and solar energy collecting means suitable to directly or indirectly provide heat to the pre-heated organic motive fluid for heating and vaporizing the motive fluid.
