序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 Verfahren zum Anfahren einer Kombianlage EP90124065.5 1990-12-13 EP0439754A1 1991-08-07 Frutschi, Hansulrich

Bei einer Gas/Dampf-Kraftwerksanlage (Kombianblage) stehen mindestens die Gasturbogruppe (1, 2, 3), der Dampfkreislauf (8, 9) und der Abhitzekessel (4) einzeln oder in Kombination zueinander, direkt oder indirekt, mit einem Dampfspeicher (12) in Werkverbindung. Diese Werkverbindung ist dadurch charakterisiert, dass ein Dampfanteil aus dem fortwährend aufgeladenen Dampfspeicher (12) für eine autonome Inbetriebsetzung mindestens einer mit der Gasturbogruppe gekoppelten Dampfturbine (8, 9) des Dampfkreislaufes zur Verfügung steht, womit das Startvermögen der Kombianlage erhöht werden kann.

62 Systems and methods for power peaking with energy storage US15280349 2016-09-29 US10145270B2 2018-12-04 Chal S. Davidson; Steven A. Wright
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 storage 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.
63 Use of regenerator in thermodynamic cycle system US15392571 2016-12-28 US10082045B2 2018-09-25 Philippe Larochelle; Raj Apte
Closed thermodynamic cycle systems, such as closed Brayton cycle systems, with regenerative heat exchangers are disclosed. Embodiments include dual regenerators and regenerators with buffer tank systems. Regenerators may be used instead of or in addition to one or more recuperators within the systems, and may be used as a means of gas-gas heat exchange for different streams of a working fluid.
64 Thermocline Arrays US15393874 2016-12-29 US20180187572A1 2018-07-05 Raj Apte
Thermocline arrays comprising a plurality of pressure vessels that are in used in place of heat exchangers in a closed thermodynamic cycle system, such as a closed Brayton cycle power generation or energy storage system. Each pressure vessel is configurable to be connected to the working fluid stream or isolated from the working fluid stream.
65 Use of Regenerator in Thermodynamic Cycle System US15392571 2016-12-28 US20180179914A1 2018-06-28 Philippe Larochelle; Raj Apte
Closed thermodynamic cycle systems, such as closed Brayton cycle systems, with regenerative heat exchangers are disclosed. Embodiments include dual regenerators and regenerators with buffer tank systems. Regenerators may be used instead of or in addition to one or more recuperators within the systems, and may be used as a means of gas-gas heat exchange for different streams of a working fluid.
66 Method for operating a steam turbine plant US15023029 2014-09-10 US09982569B2 2018-05-29 Uwe Lenk; Alexander Tremel
A method for operating a steam turbine plant including a steam turbine and a steam generator allows a power reserve to be provided whilst simultaneously maintaining a high level of efficiency in the normal mode of operation. The steam turbine plant includes a heat reservoir which is associated with the steam turbine, from which the steam is removed and is fed to the steam turbine. The steam is fed to the steam turbine when the steam generator is not in operation.
67 METHODS AND SYSTEMS FOR STORAGE OF RENEWABLE ENERGY SOURCES IN INCREASED ENERGY DENSITY COAL US15619758 2017-06-12 US20180058265A1 2018-03-01 Michael D. Durham
Methods and systems for reducing carbon dioxide emissions from a coal-fired power plant by using thermal energy from a non-carbon source to reduce the amount of electrical energy needed to reduce the moisture content of coal and increase the energy density of coal prior to combustion are provided. The system includes at least one non-carbon thermal energy source; a coal processing plant configured to reduce the moisture content of coal and produce an increased energy density beneficiated coal, wherein said at least one non-carbon thermal energy source is used to reduce an electrical need of the coal processing plant; and a coal-fired power plant configured to combust the increased energy density beneficiated coal thereby producing electricity on demand at an increased efficiency with reduced carbon dioxide emissions from the plant. The renewable energy source is selected from microwave, hydroelectric power, solar power, wind power, and/or wave power.
68 METHODS AND SYSTEMS FOR DECREASING EMISSIONS OF CARBON DIOXIDE FROM COAL-FIRED POWER PLANTS US15619815 2017-06-12 US20180057763A1 2018-03-01 Michael D. Durham
Methods and systems for reducing carbon dioxide emissions from a coal-fired power plant by using electrical energy from a renewable energy source to increase the energy density in a beneficiated coal are provided. The system includes at least one renewable energy source; a coal processing plant, wherein the renewable energy source is configured to power a coal beneficiation process; and a coal-fired power plant to combust beneficiated coal to produce electricity on demand with decreased emissions. The non-carbon thermal energy source may include solar thermal energy, geothermal energy, waste energy and combinations of the foregoing.
69 Floating solar collector assisted OTEC generator US14424367 2013-08-12 US09745966B2 2017-08-29 Charles M Grimm
An Ocean Thermal Energy Conversion (OTEC) system having a turbine with an upstream side and a downstream side. Warm water under a partial vacuum is converted into a vapor, the vapor being supplied to the upstream side of the turbine at a pressure controlled by the temperature of the warm water. A condenser is situated on the downstream side of the turbine to cause the vapor, after passing through the turbine, to undergo a phase change back to a liquid, which can be used as potable water. The condenser is coupled to a source of a cooling liquid, and the pressure of the vapor on the downstream side of the turbine is determined by the temperature of the cooling liquid. A flexible floating solar collector supplies the warm liquid to the upstream side at a temperature higher than normal ambient temperature.
70 Solar thermal power system US14155845 2014-01-15 US09494141B2 2016-11-15 Enrico Conte; Nicolas Marchal
A solar thermal power system includes a solar receiver and a thermal energy storage arrangement including thermal energy storage fluid to be circulated through the solar receiver to store thermal energy. The system includes a multistage steam turbine operable on variable pressure steam generated by primary and secondary arrangements, by utilizing the fluid. The primary arrangement generates and supplies a high pressure steam to a high pressure turbine inlet, and exits from a high pressure turbine outlet. The secondary arrangement having a reheat assembly, to generate an intermediate pressure steam from the fluid, received from the storage arrangement through the reheat assembly. The intermediate pressure steam and released steam from a high pressure turbine outlet are mixed and reheated in the reheat assembly to be supplied to an intermediate pressure turbine inlet.
71 Power generating system US13944180 2013-07-17 US09382815B2 2016-07-05 Mohammad Ashari Hadianto; Mikhail Rodionov; Nobuo Okita; Akihiro Taniguchi; Katsuya Yamashita; Osamu Furuya; Kazuo Takahata; Mikio Takayanagi
A power generating system includes a flow dividing structure, a first detector, a flow dividing adjusting valve, a heat accumulator, a heat exchanger and a turbine. The flow dividing structure divides a first heat medium into a first flow path and a second flow path. The first detector detects a flow rate of the first heat medium. The flow dividing adjusting valve opens the second flow path when the flow rate of the first heat medium exceeds a predetermined value. The heat accumulator accumulates the first heat medium via the second flow path and delivers the first heat medium at a temporally leveled flow rate. The heat exchanger transfers heat from the first heat medium to a second heat medium having a lower boiling point than the first heat medium. The turbine rotationally moves by the second heat medium with heat having been transferred by the heat exchanging unit.
72 Auxiliary steam supply system in solar power plants US14074889 2013-11-08 US09194377B2 2015-11-24 Rahul J. Terdalkar; Romain Girard
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.
73 FLOATING SOLAR COLLECTOR ASSISTED OTEC GENERATOR US14424367 2013-08-12 US20150211497A1 2015-07-30 Charles M Grimm
An Ocean Thermal Energy Conversion (OTEC) system having a turbine with an upstream side and a downstream side. Warm water under a partial vacuum is converted into a vapor, the vapor being supplied to the upstream side of the turbine at a pressure controlled by the temperature of the warm water. A condenser is situated on the down-stream side of the turbine to cause the vapor, after passing through the turbine, to undergo a phase change back to a liquid, which can be used as potable water. The condenser is coupled to a source of a cooling liquid, and the pressure of the vapor on the downstream side of the turbine is determined by the temperature of the cooling liquid. A flexible floating solar collector supplies the warm liquid to the upstream side at a temperature higher than normal ambient temperature.
74 Control of System with Gas Based Cycle US14397806 2013-03-11 US20150211386A1 2015-07-30 Jonathan Sebastian Howes; James Macnaghten; Rowland Geoffrey Hunt
System (2) for carrying out a gas based thermodynamic cycle in which a gas is compressed in at least one compressor (8) in one part of the cycle and is expanded in at least one expander (10) operating simultaneously in an upstream or downstream part of the cycle, wherein the change in absolute internal power with gas mass flow rate differs as between the compressor and the expander and wherein the system comprises a control system configured to make selective adjustments so as individually to control, either directly or indirectly, the respective gas mass flow rates through each of the compressor and expander. The system may be an energy storage system including a pumped heat energy storage system configured to provide independent graduated control of system pressure and output power by selective adjustment of the respective gas mass flow rates through each half-engine.
75 EXTERNAL HEAT ENGINES US14400737 2013-05-13 US20150152747A1 2015-06-04 Harold Emerson Godwin; Harold Devisser
An engine includes a plurality of vessels coupled to a rotatable frame and arranged about a center of rotation of the rotatable frame. Conduits connect pairs of vessels to allow mass to move between the pairs of vessels to generate a gravitational moment about the center of rotation. Each pair of vessels can have a pathway for conveying fluid heated by a heat source. The pathway extends from the heat source to a lower vessel of the pair, and can further extend from the lower vessel to an upper vessel of the pair. The pathway can be configured to expand volatile material in the lower vessel to tend to push the mass from the lower vessel into the upper vessel, and to contract volatile material in the upper vessel to tend to suck the mass into the upper vessel from the lower vessel. Vessels can be controllably connected to pressures to move mass via controllable pressure and temperature distribution systems.
76 Flexible energy balancing system US13664397 2012-10-30 US08987931B2 2015-03-24 Paul C. Marley, II
An energy balancing system is provided that ensures continuous energy output to compensate for energy fluctuations commonly associated with wind power generation. The flexible energy balancing system employs a base load high-pressure steam boiler that is associated with one or more steam turbine generators. The steam turbine generators are also associated with one or more heat recovery steam generators whose temperature is controlled by the exhaust from combustion turbine generators and the base load high-pressure steam boiler. The energy balancing system can be selectively tuned to quickly compensate for energy fluctuations associated with wind power generation.
77 POWER GENERATING SYSTEM US13944180 2013-07-17 US20140020387A1 2014-01-23 Mohammad Ashari HADIANTO; Mikhail RODIONOV; Nobuo OKITA; Akihiro TANIGUCHI; Katsuya YAMASHITA; Osamu FURUYA; Kazuo TAKAHATA; Mikio TAKAYAMAGI
In one embodiment, a power generating system includes; a flow dividing unit configured to divide a first heat medium supplied thereto to a first flow path and a second flow path; and a heat accumulating unit configured to accumulate the first heat medium sent thereto via the second flow path and deliver the first heat medium at a temporally leveled flow rate. The system further includes: a heat exchanging unit configured to transfer heat from the first heat medium sent thereto via the first flow path and the first heat medium delivered thereto from the heat accumulating unit, to a second heat medium that is lower in boiling point than the first heat medium; and a turbine configured to rotationally move with the second heat medium to which heat has been transferred by the heat exchanging unit.
78 GAS TURBINE ENERGY STORAGE AND CONVERSION SYSTEM US13911832 2013-06-06 US20130294892A1 2013-11-07 David William Dewis; James Kesseli; Frank Wegner Donnelly; Thomas Wolf; John D. Watson
The present invention combines the principles of a gas turbine engine with an electric transmission system. A method and apparatus are disclosed for utilizing metallic and ceramic elements to store heat energy derived from a regenerative braking system. The subject invention uses this regenerated electrical energy to provide additional energy storage over conventional electrical storage methods suitable for a gas turbine engine. The subject invention provides engine braking for a gas turbine engine as well as reducing fuel consumption.
79 SYSTEM AND METHOD FOR SECONDARY ENERGY PRODUCTION IN A COMPRESSED AIR ENERGY STORAGE SYSTEM US12617812 2009-11-13 US20110113781A1 2011-05-19 Thomas Johannes Frey; Matthias Finkenrath; Gabor Ast; Stephanie Marie-Noelle Hoffmann; Matthew Lehar; Richard Aumann
A method, system, and apparatus including a compressed air energy storage (CAES) system including a compression train with a compressor path, a storage volume configured to store compressed air, a compressed air path configured to provide passage of compressed air egressing from the compression train to the storage volume, and a heat recovery system coupled to at least one of the compressor path and the compressed air path and configured to draw heat from at least one of the compressor path and the compressed air path to a first liquid. The compression train is configured to provide passage of compressed air from a first compressor to a second compressor. The heat recovery system includes a first evaporator configured to evaporate the first liquid to a first gas and a first generator configured to produce electricity based on an expansion of the first gas.
80 GAS TURBINE ENERGY STORAGE AND CONVERSION SYSTEM US12777916 2010-05-11 US20100288571A1 2010-11-18 David William Dewis; James B. Kesseli; Frank Wegener Donnelly; Thomas L. Wolf; Timothy D. Upton; John D. Watson
The present invention combines the principles of a gas turbine engine with an electric transmission system. A method and apparatus are disclosed for utilizing metallic and ceramic elements to store heat energy derived from a regenerative braking system. The subject invention uses this regenerated electrical energy to provide additional energy storage over conventional electrical storage methods suitable for a gas turbine engine. The subject invention provides engine braking for a gas turbine engine as well as reducing fuel consumption.
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