Including Heat, Steam, Or Compressed Gas Storage Means Patents (Class 60/659)
  • Patent number: 11203973
    Abstract: The invention relates to a system and to a method for compressed-gas energy storage and recovery comprising at least a first and at least a second heat exchanger, a cold liquid storage means and a hot liquid storage means, as well as a separation means. The separation means is positioned after at least a first heat exchanger. The system comprises at least one means for feeding the liquid leaving the separation means to the cold liquid storage means.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: December 21, 2021
    Assignee: IFP Energies nouvelles
    Inventors: Patrick Briot, David Teixeira
  • Patent number: 11187114
    Abstract: The invention relates to a system for generating mechanical energy, comprising at least: a compressor; an expander; a heat exchanger; said system having a motor operative mode in which said system additionally comprises: means for the intake of pressurised liquid nitrogen in a liquid nitrogen intake inlet of said exchanger, means for the intake of air or gaseous nitrogen in an air or gaseous nitrogen intake inlet of said exchanger, means for discharging vaporised nitrogen at a vaporised nitrogen outlet of said exchanger, and means for discharging air or cooled nitrogen at another outlet of said exchanger for air or cooled gaseous nitrogen; means for the intake of said vaporised nitrogen into the interior of said expander in order to expand same; means for the intake of the air or cooled gaseous nitrogen into said compressor so as to produce compressed air or gaseous nitrogen therein.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: November 30, 2021
    Inventor: Eric Dupont
  • Patent number: 11136905
    Abstract: A power pack for converting waste heat from exhaust gases of an internal combustion engine to electrical energy includes a working fluid loop fluidly connecting an evaporator, an expander, a condenser and a pump. The power pack also includes a working fluid tank fluidly connected to the working fluid loop between an outlet of the condenser and an inlet of the pump. The working fluid tank has a single working fluid port operable to receive working fluid from the outlet of the condenser and to supply working fluid to the inlet of the pump. The power pack also includes a power pack control unit in communication with the working fluid tank. The power pack control unit is operable to change a pressure of the working fluid in the working fluid loop at the inlet of the pump by changing the pressure of the working fluid in the working fluid tank.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: October 5, 2021
    Assignee: Tenneco GmbH
    Inventor: Vincent Grelet
  • Patent number: 11022381
    Abstract: A heat exchange system with at least two heat exchange chambers is provided. Each of the heat exchange chambers includes heat exchange chamber boundaries which surround at least one heat exchange chamber interior of the heat exchange chamber. The heat exchange chamber boundaries include at least one first opening for guiding in of an inflow of at least one heat transfer fluid into the heat exchange chamber interior and at least one second opening for guiding out of an outflow of the heat transfer fluid out of the heat exchange chamber interior. At least one heat storage material is arranged in the heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: June 1, 2021
    Inventor: Till Andreas Barmeier
  • Patent number: 11015490
    Abstract: The present disclosure relates to combined gas and steam power plants. Various embodiments may include methods for operating such plants, such as: generating hot steam with an exhaust gas of a gas turbine; driving a generator with the steam; diverting at least a part of the generated steam and storing the diverted steam in a steam accumulator; then, discharging at least a part of the steam stored in the steam accumulator from the steam accumulator; heating the steam discharged from the steam accumulator with heat released during an exothermic chemical reaction; and feeding the heated steam to drive the turbine device.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: May 25, 2021
    Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
    Inventors: Stefan Becker, Vladimir Danov, Uwe Lenk, Florian Reißner, Erich Schmid, Jochen Schäfer
  • Patent number: 10995664
    Abstract: In a compressed air energy storage and power generation device, a compressed air energy storage and power generation method defines, as a reference storage value, a storage value indicating that a storage amount of air in an accumulator tank is in a predetermined intermediate state. At the reference storage value, at least one of a motor and a generator rotates at a rated rotation speed. When a storage value indicating a current storage amount in the accumulator tank is larger than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or less than the rated rotation speed. When the storage value indicating the current storage amount in the accumulator tank is smaller than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or more than the rated rotation speed and equal to or less than a maximum permissible rotation speed.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: May 4, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Masaki Matsukuma, Hiroki Saruta, Kanami Sakamoto
  • Patent number: 10907542
    Abstract: A compressor, a first heat exchanger, a first heat storage unit, a pressure accumulation unit, a second heat exchanger, and a second heat storage unit are provided. The first heat storage unit and the second heat storage unit are connected by a first flow passage and a second flow passage. The first and second flow passages are connected by a third flow passage. A first on-off means is provided in a first region of the first flow passage and a second on-off means is provided in a second region. A third on-off means is provided in a third region of the second flow passage, and a fourth on-off means is provided in a fourth region. A driving means and a heating means are provided in the third flow passage.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: February 2, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Yohei Kubo, Masaki Matsukuma, Yuji Matsuo, Takashi Sato, Ryo Nakamichi
  • Patent number: 10902160
    Abstract: Methods and Apparatus relating to environmental monitoring and control systems are discussed. More specifically, the present invention relates to methods and systems for monitoring temperature and other environmental conditions in a cold storage facility and tracking the locations and environmental conditions of a product throughout its cold storage life cycle using the environmental control system and smart devices in logical communication therewith. Tracked interactions with personnel in relationship to products in cold storage are also discussed.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 26, 2021
    Assignee: Middle Chart, LLC
    Inventors: Michael Wodrich, Michael S. Santarone, Randall Pugh, Jason E. Duff, Frederick Flitsch
  • Patent number: 10892642
    Abstract: A compressed air storage power generation apparatus is provided with a motor, a compressor, a pressure accumulation tank, an expander, a generator, a first heat exchanger and a cold heat extracting unit. The motor is driven by input power generated using renewable energy. The compressor is mechanically connected to the motor and compresses air. The pressure accumulation tank accumulates the compressed air compressed by the compressor. The expander is driven by the compressed air supplied from the pressure accumulation tank. The generator is mechanically connected to the expander. The first heat exchanger exchanges heat between the compressed air supplied from the compressor and a heat medium and cools the compressed air to room temperature. The cold heat extracting unit extracts air serving as working fluid as cold air of the room temperature or lower.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 12, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Masaki Matsukuma, Hiroki Saruta, Takashi Sato, Kanami Sakamoto, Masatake Toshima, Yohei Kubo
  • Patent number: 10794279
    Abstract: This compressed air storage power generation device 10 is provided with: a power demand receiving unit 60; a cold heat demand receiving unit 61; a power supply adjustment device 19 which adjusts the amount of power generated by a generator 15; a cold heat supply adjustment valve 22 which adjusts the amount of cold heat supplied from a first heat medium storage unit 21 to consumer equipment 3; and a control device which controls the power supply adjustment device 19 and the cold heat supply adjustment valve 22 so as to supply the consumer equipment 3 with power and cold heat corresponding to the power demand value and the cold heat demand value.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: October 6, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Masaki Matsukuma, Ayaka Nagahira
  • Patent number: 10788267
    Abstract: A condenser system for steam turbine systems having different loads is disclosed. The condenser system includes a selectively sized outer casing having a variably sized heat exchanger end and an input end for coupling to a steam turbine (ST) system. A condensate vessel sidewall of the casing is positionally uniform relative to the ends regardless of the size of the heat exchanger, and a cooling water sidewall has a position dependent on heat exchanger size.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: September 29, 2020
    Assignee: General Electric Company
    Inventors: Borislav Dokic, Enrico Lorenzoni, Nemanja Lukovic
  • Patent number: 10724430
    Abstract: A pumped heat energy storage (PHES) system (100) including a charging circuit and a discharging circuit effective to balance or split a total heat rejection of the PHES system between the charging circuit and the discharging circuit. The charging circuit may include thermal storage vessels (102, 104) to store thermal energy generated from a first compressor (110). A first heat rejection system (128) is fluidly coupled with the thermal storage vessels to remove thermal energy from the charging circuit. The discharging circuit may include a first turbine (146) fluidly coupled with the thermal storage vessels to extract thermal energy stored in the thermal storage vessels and convert the thermal energy to mechanical energy via an expansion of a second working fluid. A second heat rejection system (156) is fluidly coupled with the thermal storage vessels and the first turbine to remove thermal energy from the discharging circuit.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 28, 2020
    Assignee: DRESSER-RAND COMPANY
    Inventor: Jason M. Kerth
  • Patent number: 10550765
    Abstract: An energy storage device having: a high-temperature regenerator containing a solid, particularly porous storage material (S); a working gas (A) as the heat transfer medium to transfer heat between the storage material (S) and the working gas (A) flowing through; and a charging circuit and a discharging circuit for the working gas (A). The charging circuit is designed such that starting from a pre-heating unit at least one first heat transfer duct of a recuperator, a first compressor (HO), the high-temperature regenerator, a second heat transfer duct of the recuperator and then a first expander are interconnected, thus forming a circuit, so as to conduct fluid.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: February 4, 2020
    Inventors: Peter Ortmann, Werner Graf
  • Patent number: 10480409
    Abstract: The invention is a compressed gas energy storage and recovery system and method, of AACAES type. The system and the method according to the invention heats at constant volume stored compressed gas to increase the pressure of the stored compressed gas.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: November 19, 2019
    Assignee: IFP ENERGIES NOUVELLES
    Inventor: David Teixeira
  • Patent number: 10480410
    Abstract: In a compressed air energy storage and power generation device, a compressed air energy storage and power generation method defines, as a reference storage value, a storage value indicating that a storage amount of air in an accumulator tank is in a predetermined intermediate state. At the reference storage value, at least one of a motor and a generator rotates at a rated rotation speed. When a storage value indicating a current storage amount in the accumulator tank is larger than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or less than the rated rotation speed. When the storage value indicating the current storage amount in the accumulator tank is smaller than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or more than the rated rotation speed and equal to or less than a maximum permissible rotation speed.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: November 19, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Masaki Matsukuma, Hiroki Saruta, Kanami Sakamoto
  • Patent number: 10443953
    Abstract: The present invention relates to an AACAES system and method in which a heat transfer fluid makes it possible to store heat. The heat transfer fluid, which comprises balls of heat storage material, circulates between two tanks: a hot tank and a cold tank, and passes through at least one heat exchanger.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 15, 2019
    Assignee: IFP ENERGIES NOUVELLES
    Inventor: Christophe Pourima
  • Patent number: 10443952
    Abstract: The present invention relates to an AACAES system and method in which balls make it possible to store heat. The heat exchanges are produced by means of at least one radial heat exchanger, in which the balls and a first fluid circulate, the first fluid passing radially through means for circulating the balls.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 15, 2019
    Assignee: IFP ENERGIES NOUVELLES
    Inventor: Christophe Pourima
  • Patent number: 10428693
    Abstract: In an example, a system configured to operate in a heat pump mode and heat engine mode is disclosed. The system may comprise a first working fluid path, first hot thermal storage (HTS) fluid path, and first cold thermal storage (CTS) fluid path for operation in the heat pump mode. The first working fluid path may be configured to circulate the working fluid through, in sequence, a first compressor, first hot side heat exchanger, first turbine, first cold side heat exchanger, and back to the first compressor. The system may also comprise a second working fluid path, second HTS fluid path, and second CTS fluid path for operation in the heat engine mode. The second working fluid path may be configured to circulate the working fluid through, in sequence, a second compressor, second hot side heat exchanger, second turbine, second cold side heat exchanger, and back to the second compressor.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: October 1, 2019
    Assignee: Malta Inc.
    Inventors: Robert B. Laughlin, Philippe Larochelle, Nicholas Cizek
  • Patent number: 10399648
    Abstract: A floating platform generating energy produced from wave energy. In one embodiment, the platform may be used to support a roadway to build a floating bridge. The platform may also include a wave break mechanism for additional stability and may submerge for storm survival. The platform may be constructed in modules to permit reconfiguration and management of resources. In other embodiments, the platform may support communities. The bridge may also provide transmission lines for conducting wave generated electricity back to the mainland. In further embodiments, the platform may generate pressurized air from wave energy and may store the pressurized air at depth in a plurality of air tanks arranged in sequence at different depths.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 3, 2019
    Inventor: Paul D. Kennamer, Sr.
  • Patent number: 10385737
    Abstract: A device for controlling a supply of a working fluid to a power generation cycle with a compressor compressing the working fluid and a precooler cooling the working fluid supplied to the compressor comprises a storage tank storing the working fluid supplied to the power generation cycle and a flotation tank disposed between the precooler and the compressor to flow or temporarily store the working fluid, wherein a pressure within the flotation tank and a flow rate of the working fluid are controlled based on pressures at an inlet of the compressor and an outlet of the precooler.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 20, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Sang Sin Park, Seung Gyu Kang, Jeong Ho Hwang, Hyo Seong Lee
  • Patent number: 10344628
    Abstract: A compressed air energy storage power generation device 2 includes a compressor, a pressure accumulator tank, and an expander. The compressor compresses air by being driven with renewable energy. The pressure accumulator tank stores the air compressed by the compressor. The expander is driven by the compressed air. A power generator is mechanically connected to the expander and generates electric power, which is to be supplied to a demander.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 9, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Yohei Kubo, Masatake Toshima, Masaki Matsukuma, Hiroki Saruta, Kanami Sakamoto
  • Patent number: 10280803
    Abstract: An energy storage device for storing energy including: a high-temperature regenerator containing a storage material and a working gas as heat transfer medium for the purpose of exchanging heat between the storage material and the traversing working gas, a closed charging circuit for the working gas, including a first compressor, a first expander, a first recuperator having a first and a second heat exchange duct, the high-temperature regenerator and a pre-heater, wherein the first compressor is coupled to the first expander by a shaft, a discharging circuit for the working gas, and including a switch that selectively connects the high-temperature regenerator to either the charging circuit or the discharging circuit, such that the circuit containing the high-temperature regenerator forms a closed circuit.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: May 7, 2019
    Inventors: Peter Ortmann, Werner Graf
  • Patent number: 9771853
    Abstract: A waste heat accumulator/distributor system for use in a vehicle. The system includes an engine coolant loop directing engine coolant through a power plant, a powertrain electronics coolant loop directing electronics coolant through a powertrain electronics system; and a transmission fluid loop directing transmission fluid through a transmission. The system includes a multi-fluid heat exchanger including an engine coolant inlet receiving the engine coolant from the engine coolant loop, an electronics coolant inlet receiving the electronics coolant from the powertrain electronic coolant loop, and a transmission fluid inlet receiving the transmission fluid from the transmission fluid loop; a first valve controllable to cause engine coolant to flow into the engine coolant inlet or to bypass the engine coolant inlet; and a second valve controllable to cause electronics coolant to flow into the electronics coolant inlet or to bypass the electronics coolant inlet.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: September 26, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Ryan J. Benoit
  • Patent number: 9705382
    Abstract: There is disclosed a device and method for the generation of zero emission electricity that can be used to provide load balancing and emergency support to a electricity distribution network or back up electricity to a critical consumer such as a hospital or data center. The system uses a cryogenic fluid and a source of low grade waste heat. A cryogenic fluid is first evaporated by an evaporator (3) heated by a superheater (4) before entering an expansion turbine (10) to produce electricity.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: July 11, 2017
    Assignee: Highview Enterprises Limited
    Inventors: Robert Morgan, Stephen Gareth Brett
  • Patent number: 9657598
    Abstract: The method of generating immediate and thereafter continuous steam is used in a steam generating system comprising a steam accumulator, a steam outlet connected to the steam accumulator, an outlet valve at the steam outlet, and a quick response steam generator unit connected to the steam accumulator. The method comprises the steps of providing latent steam in the steam accumulator, opening the outlet valve to allow latent steam in the steam accumulator to exit through the steam outlet, feeding water to the steam generator unit, heating the water fed to the steam generator unit while the latent steam exits through the steam outlet and, before the latent steam has entirely exited the steam accumulator, generating steam with the steam generator unit to feed the steam accumulator and controlling the steam flow rate through the steam outlet to maintain it at a value which is essentially not greater than the steam flow rate from the steam generator unit to the steam accumulator.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: May 23, 2017
    Assignee: ENERO INVENTIONS
    Inventor: Benoit Janvier
  • Patent number: 9476325
    Abstract: Method and apparatus for operating a combined heat and power system with greater flexibility, reliability, control and stability, for providing operational flexibility and energy efficiency in operating a combined heat and power plant which includes a backpressure steam engine that expands a high temperature heat source of a thermodynamic fluid to generate mechanical power and discharge its spent heat for a beneficial use comprises a vessel subsystem for the spent heat, said vessel subsystem including: at least one main indirect heat exchange device or vessel (7) in heat exchange communication between its primary space (10) and its secondary space (11). The present invention also discloses the use of a method and apparatus to operate a combined heat and power system.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: October 25, 2016
    Inventor: Krishna Moorthy Palanisamy
  • Patent number: 9404512
    Abstract: A plant for storing energy by means of compressed air, in which: a storage volume accommodates air at elevated pressure pH; for energy storage, ambient air is compressed and introduced into the storage volume; for removal from storage, compressed air is extracted from the storage volume and discharged into the environment, performing work; at least one low-pressure turbomachine for alternate compression and expansion respectively compresses ambient air to a medium pressure pM and expands said ambient air from said pressure; at least one high-pressure machine for alternate compression and expansion respectively compresses air from the medium pressure pM to the store pressure pH and expands said air from the latter pressure; and said low-pressure turbomachine and high-pressure machine are connected in series in terms of flow and are mechanically coupled to in each case one, or to one common, electric machine that operates selectively as a motor and generator.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 2, 2016
    Assignee: BOGE KOMPRESSOREN OTTO BOGE GMBH & CO. KG
    Inventors: Ulrich Dämgen, Wolf D. Meier-Scheuven
  • Patent number: 9341114
    Abstract: A method for operating a gas power plant is provided, having a gas turbine which has a compressor stage and a turbine stage, and is connected to a generator via an axle, wherein the generator is designed to also be operated as a motor, wherein the method involves the operation of the generator as a motor for the rotatory operation of the axle, as well as a simultaneous discharge of the heated gas flow exiting from the turbine stage and routing of said gas flow to a first heat exchanger for the transfer of thermal energy from the gas flow to a heat exchanger fluid, wherein the heat exchanger fluid is provided to either discharge thermal energy to a heat accumulating medium or it can be used an accumulating medium itself for temporary storage.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: May 17, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventors: Christian Brunhuber, Oliver Hirschfelder, Uwe Lenk, Wolfgang Menapace, Nicolas Vortmeyer
  • Patent number: 9334854
    Abstract: A closed-cycle cryogenic engine includes a high specific heat working fluid remaining in a gaseous phase. The high temperature heat reservoir is the natural environment and the low temperature heat reservoir is created artificially by evaporating water. Isothermally compressing the working fluid at low temperature by absorbing compression heat by evaporating water extracts heat energy from the environment, converting it into net output. A plurality of serially connected isentropic expanders is interposed with a like plurality of re-heating stages. The temperature difference between the high and low temperature heat reservoirs is a few degrees, allowing expansion operation with low expansion ratios, enabling a large number of expanding and reheating steps Each engine cycle extracts natural heat energy from the environment, converting a large fraction into high density net output work. Very little water, the engine's only fuel, is consumed since evaporating water's latent heat is high.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 10, 2016
    Inventor: Michael Minovitch
  • Patent number: 9285847
    Abstract: At least one embodiment of the invention relates to a cogeneration system configured to be coupled to an electrical input of a building and configured to be coupled to a heating system of a building. The cogeneration system can comprise a generator configured to generate electrical energy. There can be also a fluid output and a fluid input that passes through the generator and configured to absorb heat from the generator. There can also be an electrical output coupled to the electrical input of the building wherein when the generator is operational, the engine creates both heat and electricity. There can also be a processor in communication with the generator, wherein the processor controls when the generator turns on and off based upon the amount of heat needed, the cost of fuel and the existing electrical rates. These costs are obtained using communication with real time rates over the internet.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: March 15, 2016
    Assignee: PAC, LLC
    Inventor: Christopher Mark Pepe
  • Patent number: 9212568
    Abstract: The invention relates to a control system for matching the output of a steam turbine (2) to a changed load, in particular for the short-term matching of the output of a power plant steam turbine (2) to changed network loads within the context of primary control. The control system according to the invention is characterized by a heat store (33) which, when there is an increased volume of steam tapped off from the steam turbine (2) under a correspondingly reduced load, extracts heat from the steam and which, when there is a reduced quantity of steam tapped off from the steam turbine under a correspondingly increased load, gives up heat to a steam/feed water circuit supplying the steam turbine (2).
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: December 15, 2015
    Assignee: Ulrich DREIZLER
    Inventor: Andreas Dengel
  • Patent number: 9200983
    Abstract: A system and a process for testing a gas turbine engine or component thereof, especially for a large aero gas turbine engine, and for a process for testing a large industrial gas turbine engine that requires large flow capacity and pressure ratios. The system and process may include the use of a large compressed air storage reservoir to provide compressed air to the testing system. Further, the system and process may also include the use of a pre-heating system, which may include a heater and a heat exchange device, to warm the compressed air from the compressed air storage reservoir to a temperature suitable to simulate normal operating conditions of the gas turbine engine or component thereof.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: December 1, 2015
    Assignee: Florida Turbine Technologies, Inc.
    Inventor: Joseph D. Brostmeyer
  • Patent number: 9127812
    Abstract: A vessel of a heat storage and release apparatus, the vessel comprises a shell comprising a metallic material, the shell having an elongated shape with a first end region and a second end region remote from the first end region, and an internal surface defining a cavity configured to contain a heat storage and release device and to guide gas-flow; a first opening through the shell for a flow of gas at high temperature and high pressure, the first opening being located in the first end region; a second opening through the shell for a flow of gas at low temperature and high pressure, the second opening being located in the second end region; and a lining of thermally insulating material adjacent to the internal surface and only partially covering the internal surface, the lining being located at least in the first end region.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: September 8, 2015
    Assignee: Nuovo Pignone S.P.A.
    Inventors: Andrea Ronchieri, Michele D'Ercole, Alessandro Szorenyi
  • Patent number: 9051851
    Abstract: 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.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: June 9, 2015
    Assignee: MAN Truck & Bus AG
    Inventors: Gottfried Raab, Josef Klammer
  • Publication number: 20150128593
    Abstract: An auxiliary steam supply system in a solar power plant includes a solar receiver having a superheater section, a turbine, a steam circuit, a thermal energy storage arrangement and an auxiliary steam circuit. The thermal energy storage arrangement, including a thermal energy storage medium, is configured for the steam circuit to receive a portion of the steam to heat the thermal energy storage medium. The thermal energy storage arrangement may receive the steam from any location across the superheater section. Moreover, the auxiliary steam circuit generating auxiliary steam flow, which thermally communicates with the thermal energy storage arrangement to be heated, is introduced to any location across the superheater section. Capacity of the thermal energy storage arrangement may be relatively small as compared to the solar receiver and may be compact for placement on top of a tower.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: ALSTOM Technology Ltd
    Inventors: Rahul J. TERDALKAR, Romain GIRARD
  • Publication number: 20150128595
    Abstract: Method for modifying a solar thermal power plant operating on conventional oil based technology into a hybrid solar thermal power plant, wherein the method comprises: providing an oil based solar thermal power plant comprising a solar collection system with at least one radiation absorber tube containing a heat transfer oil to be heated by means of the solar collection system, providing an molten salts solar thermal power plant, wherein the molten salts solar thermal power plant comprises a solar collection system to heat a molten salts mixture coupling of the respective plants such that the hybrid solar thermal power plant is configured to heat medium temperature steam that is generated by the oil based solar power plant by means of the molten salts mixture thereby producing high temperature steam and subsequently supplying it to a steam turbine to generate electricity.
    Type: Application
    Filed: May 10, 2013
    Publication date: May 14, 2015
    Inventors: Gaetano Iaquaniello, Daniela Capoferri, Fabrizio Fabrizi, Michael Epstein
  • Publication number: 20150113940
    Abstract: Systems, methods, and devices are provided for liquid air energy storage in conjunction with power generating cycles. A system can comprise a power generation apparatus and an energy storage apparatus. The energy storage apparatus can comprise a thermal energy storage unit, and the power generation apparatus and energy storage apparatus can be interconnected via the thermal energy storage unit enabling energy transfer from a first cycle of one of the power generation apparatus and energy storage apparatus to a second cycle of the other apparatus.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: STANISLAV SINATOV, LEON AFREMOV, ARNOLD J. GOLDMAN
  • Patent number: 9003763
    Abstract: An apparatus performs a power cycle involving expansion of compressed air utilizing high pressure (HP) and low pressure (LP) air turbines located upstream of a gas turbine. The power cycle involves heating of the compressed air prior to its expansion in the HP and LP air turbines. Taking into consideration fuel consumption to heat the compressed air, particular embodiments may result in a net production of electrical energy of ˜2.2-2.5× an amount of energy consumed by substantially isothermal air compression to produce the compressed air supply. Although pressure of the compressed air supply may vary over a range (e.g. as a compressed air storage unit is depleted), the gas turbine may run under almost constant conditions, facilitating its integration with the apparatus. The air turbines may operate at lower temperatures than the gas turbine, and they may include features of turbines employed to turbocharge large reciprocating engines.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: April 14, 2015
    Assignee: LightSail Energy, Inc.
    Inventor: Michael Coney
  • Publication number: 20150096289
    Abstract: The invention relates to a compressed air energy storage system comprising a pressure accumulator (2) for gas to be stored under pressure, and a heat accumulator (27) for storing the compression heat that has accumulated during charging of the pressure accumulator (2), wherein the heat accumulator (27) is arranged ready for use in an overpressure zone (31). Said arrangement enables a structurally simple heat accumulator to be provided, since said heat accumulator is not loaded by the pressure of the gas passing therethrough.
    Type: Application
    Filed: March 7, 2013
    Publication date: April 9, 2015
    Applicant: Airlight Energy IP SA
    Inventors: Andrea Pedretti-Rodi, Giw Zanganeh
  • Patent number: 8997475
    Abstract: An apparatus can include a pressure vessel that defines an interior region that can contain a liquid and/or a gas. A piston is movably disposed within the interior region of the pressure vessel. A divider is fixedly disposed within the interior region of the pressure vessel and divides the interior region into a first interior region on a first side of the divider and a second interior region on a second, opposite side of the divider. The piston is movable between a first position in which fluid having a first pressure is disposed within the first interior region and the first interior region has a volume less than a volume of the second interior region, and a second position in which fluid having a second pressure is disposed within the second interior region and the second interior region has a volume less than a volume of the first interior region.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: April 7, 2015
    Assignee: General Compression, Inc.
    Inventors: Eric D. Ingersoll, Justin A. Aborn, Luc Aalmans, Matthew Blieske
  • Patent number: 8991183
    Abstract: A thermal energy storage and recovery device is disclosed which includes a heat exchanger arrangement configured for guiding a flow of a heat transfer medium between a first end and a second end, and a heat storage material surrounding the heat exchanger arrangement so that a thermal interaction region is formed for thermally coupling the heat transfer medium with the heat storage material. The heat exchanger arrangement is sealed against the heat storage material so that, when in a first operational mode, in which the heat storage material is supposed to receive thermal energy from the heat transfer medium, a compressed gas is usable as the heat transfer medium for transferring thermal energy from the heat transfer medium to the heat storage material.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: March 31, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Henrik Stiesdal
  • Patent number: 8978380
    Abstract: A compressed air energy storage system including a compressor adapted to receive a process gas and output a compressed process gas. A heat transfer unit may be coupled to the compressor and adapted to receive the compressed process gas and a heat transfer medium and to output a cooled process gas and a heated heat transfer medium. A compressed gas storage unit may be coupled to the heat transfer unit and adapted to receive and store the cooled process gas. A waste heat recovery unit may be coupled to the heat transfer unit and adapted to receive the heated heat transfer medium.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: March 17, 2015
    Assignee: Dresser-Rand Company
    Inventors: H. Allan Kidd, Harry F. Miller
  • Publication number: 20150069758
    Abstract: Disclosed illustrative embodiments include systems and methods for power peaking with energy storage. In an illustrative, non-limiting embodiment, a power plant includes a thermodynamic piping circuit having a working fluid contained therein, and the working fluid has a flow direction and a flow rate. Power plant components are interposed in the thermodynamic piping circuit. The power plant components include a compressor system, a recuperator system, a heat source, a turbine system, a heat rejection system, and a thermal energy transfer system. A valving system is operable to selectively couple the heat rejection system, the thermal energy storage system, and the compressor system in thermohydraulic communication with the working fluid maintaining the flow direction and the flow rate to implement a thermodynamic cycle chosen from a Brayton cycle, a combination Brayton cycle/refrigeration cycle, and a Rankine cycle.
    Type: Application
    Filed: May 21, 2014
    Publication date: March 12, 2015
    Inventors: Chal S. Davidson, Steven A. Wright
  • Publication number: 20150059342
    Abstract: A system for storing and outputting thermal energy and a method for operating the system are provided. The system operates according to the Brayton cycle, wherein a heat accumulator is charged by a compressor and a cold accumulator is charged by turbines. The cycle is reversed for discharging. In addition, the cold accumulator supplies a cooling circuit, which provides the cooling for a superconducting generator by a cooling unit. A favorable generator weight can thereby be advantageously achieved in particular for wind turbines, because the generators are limited regarding the weight thereof due to being housed in the nacelle of the wind power plant. Thus, advantageously higher power can be converted in the wind power plant.
    Type: Application
    Filed: March 28, 2013
    Publication date: March 5, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventors: Ursus Krüger, Daniel Reznik, Henrik Stiesdal
  • Patent number: 8966902
    Abstract: A thermal energy storage device is provided. The device has a heat exchanger arrangement for guiding a flow of a heat transfer medium between a first end and a second end of the heat exchanger arrangement, and a heat storage material surrounding the heat exchanger arrangement. The heat exchanger arrangement transports the heat transfer medium from the first end to the second end if the thermal energy storage device is in a first operational mode, in which the heat storage material is supposed to receive thermal energy from the heat transfer medium, and transports the heat transfer medium from the second end to the first end if the thermal energy storage device is in a second operational mode, in which the heat storage material is supposed to release thermal energy to the heat transfer medium.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Henrik Stiesdal
  • Patent number: 8955320
    Abstract: In various embodiments, phase change and heat exchange methods between heat collection, heat transfer, heat exchange, heat storage, and heat utility systems are described. In certain embodiments, the heat transfer fluids/heat exchange fluids, heat storage media, and working media in the system are all phase change materials with transition temperatures close to each other and in decreasing order and perform their respective function through phase changes within a relatively narrow temperature range. Methods to control heat transfer rate, heat exchange and/or heat charging/discharging rate between heat collection, thermal energy storage and heat utility apparatus at will are provided. Methods of controlling such systems are also provided.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: February 17, 2015
    Assignee: BlueLagoon Technologies Ltd.
    Inventors: Xiaodong Xiang, Rong Zhang
  • Publication number: 20150027122
    Abstract: An energy storage power plant for harvesting electric energy, and suitable for converting electric energy into thermal energy is provided. The thermal energy can be temporarily stored in at least two thermal stores until demanded and retrieved to increase the energy content of water in a water circuit upon demand. The power plant has the at least two thermal stores, each has at least one converting device that allows electric energy to be directly or indirectly converted into thermal energy, the thermal stores being thermally chargeable by temporarily storing thermal energy, wherein one thermal store is for storing sensible heat and one thermal store is for storing latent heat; and at least one energy generating unit operated using the water in the water circuit, the energy content of the water having been increased by the temporary storage of thermal energy, in order to generate electric energy when operated.
    Type: Application
    Filed: March 12, 2013
    Publication date: January 29, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Christian Brunhuber, Carsten Graeber, Gerhard Zimmermann
  • Patent number: 8938966
    Abstract: A device and a method for using overcapacities in the power grid is provided. In case of an oversupply of energy, the energy is transferred to a thermal storage device directly via a heating element and in the discharge case of the thermal storage device the heat is removed from the thermal storage device and made available to a thermodynamic cycle whereby electrical energy is produced. The heat from the thermal storage device is used to preheat air in an air feed line to a combustion chamber, or fuel is pre-heated using heat from the thermal storage device.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: January 27, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Tobias Jockenhoevel, Norbert König, Rainer Nies, Nicolas Vortmeyer, Erik Wolf
  • Publication number: 20150013338
    Abstract: The present invention relates to a device for controlling a working fluid with low freezing point circulating in a closed loop (10) working on a Rankine cycle, said loop comprising a compression/circulation pump (12) for the fluid in liquid form, a heat exchanger (18) swept by a hot source (24) for evaporation of said fluid, expansion means (30) for the fluid in vapour form, a cooling exchanger (42) swept by a cold source (F) for condensation of the working fluid, a working fluid tank (48) and working fluid circulation lines (52, 54, 56, 58, 60, 62). According to the invention, tank (48) is connected to a depression generator (50).
    Type: Application
    Filed: December 14, 2012
    Publication date: January 15, 2015
    Inventors: Pascal Smague, Pierre Leduc, Richard Levesque
  • Patent number: 8931276
    Abstract: Disclosed herein is a hybrid renewable energy system having an underground heat storage apparatus. A solar collector is provided on or around a building structure and collects solar heat to heat a heat medium. A transfer pipe transfers the heat medium, heated by the solar collector, into the underground. The heat storage apparatus stores heat received from the heat medium and heats, using the stored heat, both cold water supplied from the building structure through a supply pipe and air supplied from an inlet duct. A return pipe returns the heat medium from the heat storage apparatus to the solar collector. An inlet pipe supplies hot water produced by the heat storage apparatus to the building structure. A connection duct supplies air heated by the heat storage apparatus into the building structure to heat the room of the building structure.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: January 13, 2015
    Inventor: Dongho Kim