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060 - Power plants

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Class / Patent application numberDescriptionNumber of patent applications / Date published
060645000 Process of power production or system operation 332
060670000 Power system involving change of state 155
060660000 Having condition responsive control 37
060682000 Single state motive fluid energized by indirect heat transfer 24
060659000 Including heat, steam, or compressed gas storage means 20
060657000 Having apparatus cleaning, sealing, lubricating, purging, standby, or protecting feature 19
060644100 Heating motive fluid by nuclear energy 11
060668000 Power system physically related to vehicle structure 1
20120324891METHOD AND APPARATUS FOR RECOVERING HEAT AND CONVERTING IT INTO MECHANICAL POWER IN A DRIVE SYSTEM FOR MOTOR VEHICLES - A method and an apparatus recover heat and convert the heat into mechanical power in a drive system for motor vehicles. A working medium carried in a working medium circuit is evaporated by an evaporator integrated into the working medium circuit by waste heat from an internal combustion engine. The vapor generated is fed to an expansion machine coupled to the internal combustion engine, and the exhaust vapor from the expansion machine is then converted back into the liquid phase in at least one condenser. Accordingly at least one valve, which can be subjected to control by a control device, and a vapor accumulator are integrated into the working medium circuit downstream of the evaporator such that the vapor generated is fed into the vapor accumulator. The vapor stored in the vapor accumulator is fed back at least in part into the working medium circuit to drive the expansion machine.12-27-2012
060655000 Noncommunicating heat transferring motive fluid system (e.g., cascade, etc.) 1
20110072820HEAT ENGINE AND METHOD FOR OPERATING THE SAME - A process fluid cooler can extract thermal energy from a process fluid including carbon dioxide. An absorber can transfer carbon dioxide from the process fluid to a removal fluid. A reboiler can heat the removal fluid so as to cause carbon dioxide to be released from the removal fluid and outputted as part of a reboiler output stream. The reboiler can also output a heating fluid. A stripper condenser can extract thermal energy from the reboiler output stream so as to cause condensation of water associated with the reboiler output stream and to remove carbon dioxide therefrom. A compression system can remove thermal energy from carbon dioxide received from the stripper condenser. A heat engine can be configured to operate according to an organic Rankine cycle, receiving thermal energy from the heating fluid and/or extracted at the process fluid cooler, at the stripper condenser, and/or at the compression system.03-31-2011
060656000 Having ancillary structure for starting 1
20090288417MICRO-HYBRID SYSTEM WITH A PLURALITY OF STARTER-ALTERNATORS - A micro-hybrid system (11-26-2009
20100115947ROTARY HEAT ENGINE POWERED BY RADIANT ENERGY - Provided is a rotating energy conversion device that includes a heat absorber having a working fluid therein, a power converter in fluid communication with the heat absorber, and a heat rejecter in fluid communication with each one of the heat absorber and the power converter. The device may utilize an energy source that provides radiant energy to the heat absorber. The device may utilize a segmented energy source that may have a plurality of segments, wherein each segment may be either activated or deactivated to deliver the radiant energy to the heat absorber. The device may utilize waste heat produced by the device to create additional work. Furthermore, the device may utilize multiple thermodynamic cycles.05-13-2010
20090120092SINGLE LOOP HEAT PUMP GENERATOR - A single loop heat pump generator includes a vaporizer in which a liquid working medium can gasify by unordered heat in the air and produce high-speed gas flow, a turbine generator unit for changing the kinetic energy of the high-speed gas flow into electric energy and a compressor for compressing the exhaust of a turbine into hot and compressed gas and transferring the hot and compressed gas to a liquefier, and the liquefier is connected with the vaporizer by a feed pipe of the liquid working medium. The generator has a closed loop, and it can output electric power.05-14-2009
20130047612BUTTERFLY PLATE FOR A STEAM TURBINE EXHAUST HOOD - A steam turbine exhaust hood includes an exhaust hood section, and a butterfly plate arranged in the exhaust hood section. The butterfly plate includes a complex curvilinear cross-sectional profile having a first section that extends between a first end portion and a middle portion, and a second section that extends between the middle portion and a second end portion. One of the first and second sections is formed from at least two curvilinear segments including at least one curvilinear segment having a positive curvature and at least one curvilinear segment having a negative curvature.02-28-2013
20090272113HEAT RECOVERY EQUIPMENT - Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.11-05-2009
20110277473Thermal Energy Transfer System - A thermally isolated counter flowing heat exchanger comprising two isolated fluids having different energy levels flowing in contained systems separated by fluid heat trap passages and utilizing gates that control flow into different cells based on temperature. A system for transferring and storing thermal energy comprising a refrigerant circulating in a tank in a vortex such that when the vortex flow of the refrigerant is in contact with multiple spaced tubing located inside the tank, energy is transferred between the refrigerant and a fluid flowing inside the tubing. A system for generating energy comprising a hot regenerator and a cold regenerator, each thermally isolated and connected to counter cycling hot expansion pistons that utilize compression of exhausting hot gas as it flows into the cold regeneration area to create a suction effect on the exhausting hot gas that adds power to the compression stroke of the piston to provide energy.11-17-2011
20120285169ORGANIC RANKINE CYCLE SYSTEMS USING WASTE HEAT FROM CHARGE AIR COOLING - The present application and the resultant patent provide a waste heat recovery system for recovering heat from a number of turbocharger stages. The waste heat recovery system may include a simple organic rankine cycle system and a number of charge air coolers in communication with the turbocharger stages and the simple organic rankine cycle system. The charge air coolers are positioned in a number of parallel branches of the simple organic rankine cycle system.11-15-2012
20110277474METHODS AND SYSTEMS USING NATURAL GAS POWER PLANT - Provided herein are methods and systems for sequestering carbon dioxide from a multi-component gaseous stream, such as flue gas from natural gas-burning power plant to produce a protonated carbonate. Also provided herein are methods and systems for electrochemically producing proton-removing agents to form a deprotonated carbonate from the protonated carbonate. The electrochemical process may consume less energy than the amount of energy generated during production of the multi-component gaseous stream.11-17-2011
20100293946Compact Radial Counterflow Recuperator - An annular design heat exchanger is formed from an arrangement of wedge-shaped stacks of wafers. Each wafer includes sheets of material separated by peripheral and supporting walls that define interior flow channels through which a first fluid can flow. Holes in the sheets provide inlets and outlets to the channels, and walls surrounding the holes mate with neighboring wafers in the stack, forming integral inlet and outlet manifolds, while ensuring uniform spacing between the wafers. A second fluid can flow around the manifolds and through the spaces between the wafers in a counterflow pattern. In the annular assembly, the manifolds are oriented substantially axially, and the flow channels are oriented substantially radially. The heat exchanger can be formed from a ceramic material, and can be incorporated into an engine assembly or a heat-recirculating combustor.11-25-2010
20100115946Heat engine/ heat pump using centrifugal fans - An engine/heat pump is shown. Most of its parts rotate around the same central axis. It comprises two doubly connected chambers. Blades in each chamber substantially rotate with the chamber and may be firmly attached to the walls of the chamber, thus forming a modified centrifugal pump with axial input and discharge. An expandable fluid is rotated outward by one of the pumps and then heat is added for an engine of removed for a heat pump as the fluid is being sent to the outer part of the second pump. The fluid travels toward the center of the second pump, thus impelling the pump in the rotation direction. Then heat is removed for an engine or added for a heat pump as the fluid leaves the second pump and travels back to the first pump near the center of rotation. Rotation energy of the fluid is typically much larger than the circulation energy. A modified centrifugal pump with axial discharge having a casing rotating with the blades is also claimed.05-13-2010
20110167821COMBUSTION SYSTEMS, POWER PLANTS, AND FLUE GAS TREATMENT SYSTEMS INCORPORATING SWEEP-BASED MEMBRANE SEPARATION UNITS TO REMOVE CARBON DIOXIDE FROM COMBUSTION GASES - Disclosed herein are combustion systems, power plants, and flue gas treatment systems that incorporate sweep-based membrane separation units to remove carbon dioxide from combustion gases. In its most basic embodiment, the invention is a combustion system that includes three discrete units: a combustion unit, a carbon dioxide capture unit, and a sweep-based membrane separation unit. In a preferred embodiment, the invention is a power plant including a combustion unit, a power generation system, a carbon dioxide capture unit, and a sweep-based membrane separation unit. In yet another embodiment, the invention is a flue gas treatment system that incorporates three membrane separation units with a carbon dioxide liquefaction unit.07-14-2011
20110203274STEAM TURBINE PLANT - An exemplary steam plant having a steam circuit which includes a superheater defining a boundary between a superheated steam region and an unsuperheated steam region. The steam circuit includes a branch, from a superheated steam region of the steam circuit, with a branch valve and a steam desuperheater upstream of the branch valve. The desuperheater provides cooling to the branch during flow mode operation of the branch. During a no flow mode, a first preheat line and a second preheat line provide the cooling by supplying unsuperheated steam to the branch and directing this flow through to a lower pressure region of the steam circuit.08-25-2011
20130186090HEAT ENGINE WITH EXTERNAL HEAT SOURCE AND ASSOCIATED POWER GENERATION UNIT AND VEHICLE - A heat engine includes structure for compressing a cooled working gas, heating the compressed working gas using an external heat source, expanding the heated compressed working gas, cooling the working gas using a heat exchanger with a cold source, and subsequently, returning the cooled working gas into the compression structure.07-25-2013
20110247332External Combustion Engine - An external combustion engine comprising a drive shaft, a first cylinder kinematically connected to the drive shaft, a second cylinder kinematically connected to the drive shaft, and a thermodynamic circuit fluidly connected to both the cylinders, and having at least an expansion chamber and a compression chamber for a heat-carrying fluid, in order to determine the cyclic movement of the first cylinder and the second cylinder. The first cylinder is mounted on a first support frame and the second cylinder is mounted on a second support frame, distinct from and constrained in a mobile manner to the first support frame. Movement means are mechanically connected to the first support frame and/or the second support frame, in order to determine the desired relative movement of the first support frame and the second support frame and to vary the reciprocal kinematic connection phasing of the two cylinders with respect to the drive shaft.10-13-2011
20110131990COMBUSTION PLANT WITH ABATEMENT OF POLLUTANTS - A combustion plant, comprising: a combustion chamber (06-09-2011
20110167822Fluid Machine - A fluid machine which can be compact and produced at reduced costs and which can increase the amount of heat added to a refrigerant circulating in a Rankine cycle and thus greatly increase the efficiency of the Rankine cycle. A fluid machine (07-14-2011
20110185729THERMAL ENERGY CONVERSION DEVICE - A waste heat recovery system, method and device executes a thermodynamic cycle using a working fluid in a working fluid circuit which has a high pressure side and a low pressure side. Components of the system in the working fluid circuit include a waste heat exchanger in thermal communication with a waste heat source also connected to the working fluid circuit, whereby thermal energy is transferred from the waste heat source to the working fluid in the working fluid circuit, an expander located between the high pressure side and the low pressure side of the working fluid circuit, the expander operative to convert a pressure/enthalpy drop in the working fluid to mechanical energy, a recuperator in the working fluid circuit operative to transfer thermal energy between the high pressure side and the low pressure side of the working fluid circuit, a cooler in thermal communication with the low pressure side of the working fluid circuit operative to control temperature of the working fluid in the low side of the working fluid circuit, a pump in the working fluid circuit and connected to the low pressure side and to the high pressure side of the working fluid circuit and operative to move the working fluid through the working fluid circuit, and a mass management system connected to the working fluid circuit, the mass management system, method and device having a working fluid vessel connected to the low pressure side of the working fluid circuit and configured to passively control an amount of working fluid mass in the working fluid circuit.08-04-2011
20110185730Three-conductor and four-conductor system for saving energy in connection with district heat - The patent application relates to a district-heat consumer plant which is capable of being linked to a district-heat network and which comprises at least one heat-consumer which is capable of being supplied with heat from the district-heat network, the district-heat consumer plant comprising a port via which the district-heat consumer plant is capable of being linked to a district-heat reflux of the district-heat network, in order to withdraw heat from the district-heat reflux for the purpose of supplying the at least one heat-consumer. The patent application further relates to a district-heat network, to which a district-heat consumer plant is capable of being linked, the district-heat network comprising a district-heat reflux, and the district-heat reflux comprising a port for the district-heat consumer plant, in order to supply the district-heat consumer plant with heat from the district-heat reflux. Lastly, the patent application relates to a district-heat system which comprises a district-heat consumer plant and a district-heat network.08-04-2011
20110314814HYDROGEN PRODUCTION SYSTEM AND POWER GENERATION SYSTEM - The amount of high-temperature steam supplied from external equipment is reduced. Provided is a hydrogen production system (12-29-2011
20130014509PLANT FOR THE PRODUCTION OF ENERGY BASED UPON THE ORGANIC RANKINE CYCLEAANM Perico; CostanzoAACI Presezzo (BG)AACO ITAAGP Perico; Costanzo Presezzo (BG) ITAANM Nasini; ErnestoAACI Strozza (BG)AACO ITAAGP Nasini; Ernesto Strozza (BG) ITAANM Rottoli; MarcoAACI Terno D'isola (BG)AACO ITAAGP Rottoli; Marco Terno D'isola (BG) IT - A plant for the production of energy that is based upon the organic Rankine cycle (ORC). The plant comprises a first ORC system, comprising a first organic operating fluid circulating, in sequence, between a first evaporator in conditions of heat exchange with a heat source, a first expansion stage in a turbine operatively connected to a generator, a first evaporator/condenser, and a first pump for recirculating said first organic operating fluid to said first evaporator. Said turbine is a partializable turbine and comprises means for partializing the incoming flowrate of said organic operating fluids, said means being designed to partialize said incoming flowrate to keep the r.p.m. of said turbine constant.01-17-2013
20110146275High efficiency processes and inventions for producing continuing work from transient liquid pressures in a confined liquid - High work/energy efficiency and liquid efficiency processes and inventions for producing continuing work from confined liquid transient pressures in a pressure conduit. More particularly work processes and inventions that conserve liquid and increase and maintain the amount of continuing work done by transient pressures produced in a liquid within a confined pressure system.06-23-2011
20130125546THERMAL ENERGY STORAGE AND RECOVERY SYSTEM COMPRISING A STORAGE ARRANGEMENT AND A CHARGING/DISCHARGING ARRANGEMENT BEING CONNECTED VIA A HEAT EXCHANGER - A thermal energy storage and recovery system including a storage arrangement having a thermal energy storage device for temporarily storing thermal energy, a charging/discharging arrangement having a fluid energy machine for exchanging mechanical work with a working fluid cycling through the charging/discharging arrangement, and a heat exchanger which is arranged between the storage arrangement and the charging/discharging arrangement and which thermodynamically couples a heat transfer fluid cycling through the storage arrangement with the working fluid is provided. The storage arrangement is configured in such a manner that the heat transfer fluid is under a first pressure and the charging/discharging arrangement is configured in such a manner that the working fluid is at least partially under a second pressure, wherein the second pressure is higher than the first pressure.05-23-2013
20110214425ENERGY-EFFICIENT SYSTEM FOR GENERATING CARBON BLACK, PREFERABLY IN ENERGETIC COOPERATION WITH SYSTEMS FOR GENERATING SILICON DIOXIDE AND/OR SILICON - The object of the invention is a more energy-efficient system for utilizing waste heat and residual gases from the engineered generation of carbon compounds, such as carbon black, graphite or from sugar pyrolysis, using a coupling of energy-heat or a thermal heat-generating plant for generating electrical energy, in particular for operating melt furnaces, and/or for utilizing the waste heat in endothermal processes. The invention also relates to the use of waste heat.09-08-2011
20130205779Molecular Transformation Energy Conversion System - A Molecular Transformation Energy Conversion System (MTECS), converts thermal energy to work energy. Unlike Rankine cycle engines that typically use a liquid to gas state change to extract work from the system, the MTECS uses a liquid to solid and/or austenite to martensite state change to extract work. Operation of the system involves extracting work from a thermally reactive material that changes in crystalline structure over a relatively small temperature range (as compared to Rankine cycle systems). Input thermal energy is transferred into either or both the thermal transfer component (typically a gas/liquid refrigerant) and/or the molecular transformation component (typically either water/ice or a shape memory material) to power the system. Sources of input thermal energy and methods of their transference into the system may be numerous.08-15-2013