序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
241 Heat energy recovery system US15239098 2016-08-17 US09995244B2 2018-06-12 Yuji Tanaka; Kazuo Takahashi; Shigeto Adachi; Yutaka Narukawa
A heat energy recovery system includes an evaporator, a superheater, an expander, a power recovery device, a condenser, a pump, and a controller. The controller includes: an engine load calculation section; a maximum rotation speed determination section for determining a maximum rotation speed of the pump which is obtained when a pinch temperature reaches a target pinch temperature, based on a relational expression representing a relationship between the engine load and the maximum rotation speed, and an engine load; and a rotation speed regulation section for regulating the rotation speed of the pump in such a way as to allow the degree of superheat of the working medium flowing into the expander to be equal to or greater than a reference value, and to allow the rotation speed to be equal to or less than a maximum rotation speed determined by the maximum rotation speed determination section.
242 Bypass valve US14435033 2013-10-17 US09964229B2 2018-05-08 Mark Edward Byers Sealy; John Michael Morris; Christopher Edward Narborough; Patrick Williams
A bypass valve (130) that regulates a flow of a fluid in a waste heat recovery system (100) is provided. The bypass valve (130) comprises a valve housing (220), an expander poppet (250) coupled to the valve housing (220) and adapted to prevent the flow of the fluid to an expander (140), and a valve stem (230) with at least a portion disposed in the valve housing (220) wherein the valve stem (230) is adapted to displace the expander poppet (250) to allow the fluid to flow to the expander (140), and regulate the flow of the fluid.
243 GAS TURBINE EFFICIENCY AND REGULATION SPEED IMPROVEMENTS USING SUPPLEMENTARY AIR SYSTEM CONTINUOUS AND STORAGE SYSTEMS AND METHODS OF USING THE SAME US15794973 2017-10-26 US20180058326A1 2018-03-01 Robert J. Kraft; Scott Auerbach; Peter A. Sobieski; Sergio Arias-Quintero
A method of cooling a gas fueled engine driven intercooled air compressor comprises providing the intercooled air compressor, a gearbox, and the gas fueled engine. The method includes flowing a liquid coolant from a liquid coolant supply to each of the gearbox and an intercooler of the intercooled air compressor. The method comprises recombining the liquid coolant after the gearbox and the intercooler. The method includes directing the recombined liquid coolant via multiple paths to cool the gas fueled engine. The method comprises recombining the liquid coolant after the liquid coolant has passed through the multiple paths.
244 GAS TURBINE AIR INJECTION SYSTEM CONTROL AND METHOD OF OPERATION US15684037 2017-08-23 US20170370289A1 2017-12-28 Robert J. KRAFT; Scott AUERBACH
The present invention discloses a novel apparatus and methods for controlling an air injection system for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of a power plant. Improvements in control of the air injection system include ways directed towards preheating the air injection system, including using an gas turbine components, such as an inlet bleed heat system to aid in the preheating process.
245 Power generation system US14653465 2013-12-27 US09810089B2 2017-11-07 Yutaka Kubota; Toyotaka Hirao; Takao Sakurai; Naoki Kobayashi
This power generation system (20A) includes a plurality of power generation units (50A, 50B, 50C, . . . ) which are provided in parallel, wherein each of the power generation units (50A, 50B, 50C, . . . ) includes an expander (26) configured to be rotated by a working medium, a power generator (28) configured to generate power through rotation of the expander (26), a rectifier (29), a medium circulation system (22) configured to pump the working medium into the expander (26), a relay (70) configured to interrupt power between the power generator (28) and an external power system (30), an operating unit (40A, 40B) configured to be operated when maintenance starts, and a relay driving unit (71) configured to interrupt power between the power generator (28) and the external power system (30) by the relay (70) when the operating unit (40A, 40B) has been operated.
246 Cascaded power plant using low and medium temperature source fluid US14584950 2014-12-29 US09784248B2 2017-10-10 Dany Batscha; David Machlev; Noa Kalish; Rachel Huberman
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.
247 Method For Generating Energy, In Which An Electropositive Metal Is Atomized And/Or Sprayed And Combusted With A Reaction Gas, And A Device For Carrying Out Said Method US15511270 2015-09-11 US20170284227A1 2017-10-05 Helmut Eckert; Guenter Schmid; Dan Taroata
The present disclosure relates to a method of generating energy. The teachings thereof may be embodied in a method comprising: atomizing an electropositive metal; combusting the metal with a reaction gas; mixing the resulting combustion products with water, or an aqueous solution, or a suspension of a salt of the metal; separating a resulting mixture into (a) solid and liquid constituents and (b) gaseous constituents; at least partly converting energy from the separated constituents. Mixing the combustion products may include: atomizing liquid or gaseous water; or atomizing or nebulizing an aqueous solution or a suspension of a salt of the electropositive metal, into the reacted mixture.
248 Gas turbine air injection system control and method of operation US14329433 2014-07-11 US09765693B2 2017-09-19 Robert J. Kraft; Scott Auerbach
The present invention discloses a novel apparatus and methods for controlling an air injection system for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of a power plant. Improvements in control of the air injection system include ways directed towards preheating the air injection system, including using an gas turbine components, such as an inlet bleed heat system to aid in the preheating process.
249 Waste heat recovery system and waste heat recovery method US14662735 2015-03-19 US09732637B2 2017-08-15 Yuji Tanaka; Kazuo Takahashi; Ryo Fujisawa; Shigeto Adachi; Yutaka Narukawa
A waste heat recovery system includes: a heater which evaporates a working medium by exchanging heat between supercharged air supplied to an engine and the working medium; an expander which expands the working medium which has flowed out from the heater; a power recovery device connected to the expander; a condenser which condenses the working medium which has flowed out from the expander; a cooling medium supply pipe for supplying a cooling medium to an air cooler which cools the supercharged air which has flowed out from the heater; a cooling medium pump which is provided in the cooling medium supply pipe and which sends the cooling medium to the air cooler; and a branch pipe which bifurcates a part of the cooling medium flowing in the cooling medium supply pipe, to the condenser, in such a manner that the working medium is cooled by the cooling medium.
250 Controlled organic rankine cycle system for recovery and conversion of thermal energy US13961341 2013-08-07 US09683463B2 2017-06-20 Victor Juchymenko
A system for controlled recovery of thermal energy and conversion to mechanical energy. The system collects thermal energy from a reciprocating engine, specifically from engine jacket fluid and/or engine exhaust and uses this thermal energy to generate a secondary power source by evaporating an organic propellant and using the gaseous propellant to drive an expander in production of mechanical energy. A monitoring module senses ambient and system conditions such as temperature, pressure, and flow of organic propellant at one or more locations; and a control module regulates system parameters based on monitored information to optimize secondary power output. A tertiary, or back-up power source may also be present. The system may be used to meet on-site power demands using primary, secondary, and tertiary power.
251 HEAT ENGINE SYSTEM INCLUDING AN INTEGRATED COOLING CIRCUIT US15231047 2016-08-08 US20170130614A1 2017-05-11 Timothy Held; Jason D. Miller
A heat engine system and a method for cooling a fluid stream in thermal communication with the heat engine system are provided. The heat engine system may include a working fluid circuit configured to flow a working fluid therethrough, and a cooling circuit in fluid communication with the working fluid circuit and configured to flow the working fluid therethrough. The cooling circuit may include an evaporator in fluid communication with the working fluid circuit and configured to be in fluid communication with the fluid stream. The evaporator may be further configured to receive a second portion of the working fluid from the working fluid circuit and to transfer thermal energy from the fluid stream to the second portion of the working fluid.
252 High-temperature energy store with recuperator US14358150 2012-09-07 US09611761B2 2017-04-04 Christian Brunhuber; Carsten Graeber; Gerhard Zimmermann
A charging circuit for converting electrical energy into thermal energy is provided, having a compression stage, connected via a shaft to an electric motor, a heat exchanger and an expansion stage, which is connected via a shaft to a generator, wherein the compression stage is connected to the expansion stage via a hot-gas line, and the heat exchanger is connected on the primary side into the hot-gas line, wherein the expansion stage is connected via a return line to the compression stage, so that a closed circuit for a working gas is formed. A recuperator is also provided which, on the primary side, is connected into the hot-gas line between the heat exchanger and the expansion stage and, on the secondary side, is connected into the return line, so that heat from the working gas in the hot-gas line can be transferred to the working gas in the return line.
253 HEAT ENERGY RECOVERY SYSTEM US15239098 2016-08-17 US20170089295A1 2017-03-30 Yuji TANAKA; Kazuo TAKAHASHI; Shigeto ADACHI; Yutaka NARUKAWA
A heat energy recovery system includes an evaporator, a superheater, an expander, a power recovery device, a condenser, a pump, and a controller. The controller includes: an engine load calculation section; a maximum rotation speed determination section for determining a maximum rotation speed of the pump which is obtained when a pinch temperature reaches a target pinch temperature, based on a relational expression representing a relationship between the engine load and the maximum rotation speed, and an engine load; and a rotation speed regulation section for regulating the rotation speed of the pump in such a way as to allow the degree of superheat of the working medium flowing into the expander to be equal to or greater than a reference value, and to allow the rotation speed to be equal to or less than a maximum rotation speed determined by the maximum rotation speed determination section.
254 METHOD AND APPARATUS FOR GENERATING ELECTRICITY USING A THERMAL POWER PLANT US15106589 2014-12-17 US20160333744A1 2016-11-17 Benoit DAVIDIAN; Cyrille PAUFIQUE
A method for generating electricity by means of a thermal power plant and a liquid vaporization apparatus involves producing heat energy by means of the power plant and using the heat energy to vaporize water or to heat water vapor, expanding the water vapor formed in a first turbine and using the first turbine to drive an electricity generator in order to produce electricity, vaporizing liquefied gas coming from a cryogenic storage in order to produce pressurized gas, reheating the pressurized gas with a part of the water vapor intended for the first turbine of the power plant and expanding the pressurized fluid in a second turbine to produce electricity.
255 SYSTEM AND METHOD FOR HEATING MAKE-UP WORKING FLUID OF A STEAM SYSTEM WITH ENGINE FLUID WASTE HEAT US14626856 2015-02-19 US20160245125A1 2016-08-25 Richard Michael Watkins
A system including an engine and a heat exchanger coupled to the engine is provided. The engine includes an engine fluid and at least one of a compressor section configured to compress a gas, a lubricant path configured to circulate a lubricant, or a coolant path configured to circulate a coolant. The engine fluid comprises at least one of the gas, the lubricant, or the coolant, and the engine fluid is a source of heat derived from one or more operations of the engine. The heat exchanger is configured to receive the engine fluid from the engine and exchange heat between the engine fluid and a working fluid to produce a heated working fluid and a cooled engine fluid, and the heat exchanger is configured to export the heated working fluid to a steam system.
256 High efficiency power generation system and system upgrades US14742760 2015-06-18 US09404394B2 2016-08-02 William Edward Simpkin
A thermal/electrical power converter includes a gas turbine with an input couplable to an output of an inert gas thermal power source, a compressor including an output couplable to an input of the inert gas thermal power source, and a generator coupled to the gas turbine. The thermal/electrical power converter also includes a heat exchanger with an input coupled to an output of the gas turbine and an output coupled to an input of the compressor. The heat exchanger includes a series-coupled super-heater heat exchanger, a boiler heat exchanger and a water preheater heat exchanger. The thermal/electrical power converter also includes a reservoir tank and reservoir tank control valves configured to regulate a power output of the thermal/electrical power converter.
257 Cascaded power plant using low and medium temperature source fluid US14086655 2013-11-21 US09341086B2 2016-05-17 Dany Batscha; Rachel Huberman; Tomer Hashmonay
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.
258 Energy storage installation with open charging circuit for storing seasonally occurring excess electrical energy US14364380 2012-11-13 US09322297B2 2016-04-26 Christian Brunhuber; Carsten Graeber; Gerhard Zimmermann
An energy storage device for storing thermal energy, with a charging circuit for a working gas, is provided, having a compressor, heat accumulator and expansion turbine, the compressor and expansion turbine arranged on a common shaft, and the compressor connected on the outlet side to the inlet of the expansion turbine via a first line for the working gas, the heat accumulator wired into the first line, wherein the compressor is connected on the inlet side to a line, which is open to the atmosphere, and the expansion turbine is connected on the outlet side to a line, which is open to the atmosphere such that a circuit open to the ambient air is formed, wherein the expansion turbine is connected to the heat accumulator via a line for a hot gas such that the working gas in the expansion turbine can be heated by heat from the heat accumulator.
259 SYSTEM AND METHOD USING SOLAR THERMAL ENERGY FOR POWER, COGENERATION AND/OR POLY-GENERATION USING SUPERCRITICAL BRAYTON CYCLES US14461024 2014-08-15 US20160047361A1 2016-02-18 Fahad Abdulaziz AL-SULAIMAN
Methods of operating a supercritical Brayton cycle integrated with another cycle for power, cogeneration, or poly-generation using solar energy as a main source of energy. A system includes a supercritical CO2 Brayton cycle as a topping cycle and any one or more of a power cycle, a cooling cycle, a steam production cycle, and a water desalination cycle as a lower cycle. When not enough solar irradiation is available to power the combined cycle, the lower cycle is only operated or both part of the topping cycle as well as the lower cycle through the solar thermal energy and/or the stored thermal energy.
260 System and method of waste heat recovery US13905811 2013-05-30 US09260982B2 2016-02-16 Matthew Alexander Lehar; Pierre Sebastien Huck; Christian Vogel
A novel Rankine cycle system configured to convert waste heat into mechanical and/or electrical energy is provided. In one aspect, the system provided by the present invention comprises a novel configuration of the components of a conventional Rankine cycle system; conduits, ducts, heaters, expanders, heat exchangers, condensers and pumps to provide more efficient energy recovery from a waste heat source. In one aspect, the Rankine cycle system is configured such that an initial waste heat-containing stream is employed to vaporize a first working fluid stream, and a resultant heat depleted waste heat-containing stream is employed to aid in the production of a second vaporized working fluid stream. The Rankine cycle system is adapted for the use of supercritical carbon dioxide as the working fluid.
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