Having Oxidizer Cooling Means Patents (Class 60/728)
  • Patent number: 8616015
    Abstract: A cooling circuit for removing waste heat from a cooling device of an electromechanical converter is provided. The cooling circuit includes a chilling medium, a cooler for extracting heat from the chilling medium, a return connecting the cooling device of the converter to the cooler and conducts warm chilling medium, a feed connecting the cooler to the cooling device of the converter and conducts cool chilling medium, and an absorption chiller for extracting heat from the chilling medium. The absorption chiller is driven by the heat of the warm chilling medium that is in the return.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: December 31, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Volker Amedick, Malte Blomeyer, Leandro Cravero, Eberhard Deuker, Hendrik Heitfeld, Carsten Kaufmann, Meinolf Klocke, Stefan Völker
  • Patent number: 8601825
    Abstract: An integrated absorption refrigeration and dehumidification system includes an absorber containing an absorption solution, an after-cooler having a flow path to receive the solution and a flow path to receive a warm fluid, the flow paths being thermally coupled to separate a refrigerant from the solution, and an auxiliary heat exchanger having a flow path to receive the solution from the after-cooler and a flow path to receive a warm fluid, the flow paths being thermally coupled to separate more refrigerant from the solution. The system also includes a condenser positioned to receive and cool the refrigerant from the auxiliary heater, an expansion valve positioned to receive the refrigerant from the condenser, an evaporator positioned to receive the refrigerant from the expansion valve and the warm fluid from the after-cooler, and a separator to remove condensate from the warm fluid from the after-cooler or a cool fluid from the evaporator.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: December 10, 2013
    Assignee: Ingersoll-Rand Company
    Inventor: James C. Collins
  • Patent number: 8584464
    Abstract: A method for assembling a gas turbine engine assembly includes providing a core gas turbine engine including a high-pressure compressor, a combustor, and a high-pressure turbine, and coupling a low-pressure compressor between the core gas turbine engine and a motor such that the low-pressure compressor is driven only by the motor.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: November 19, 2013
    Assignee: General Electric Company
    Inventors: Narendra Digamber Joshi, Michael Eugene Michael, Michael Joseph Reale
  • Patent number: 8534039
    Abstract: A combined cycle power plant system and methods of operation so as to minimize consumption of cooling water utilizes exhaust from a combustion turbine to generate steam for power generation in a steam turbine topping cycle. The exhaust steam from the steam turbine topping cycle is utilized to vaporize an organic working fluid in an organic working fluid bottoming cycle, where vaporized organic working fluid expanded across a turbine generates additional power. Exhaust gas from the organic working fluid bottoming cycle is condensed utilizing an air-cooled heat exchanger. Heat exchange bundles of the air-cooled heat exchanger are preferably arranged horizontally relative to the ground to maximize efficiency. Turbine inlet cooling is employed at the combustion turbine to recapture energy lost in the system. A thermal energy storage tank may be utilized in conjunction with the turbine inlet cooling to supply chilling water to the system.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: September 17, 2013
    Assignee: TAS Energy, Inc.
    Inventors: Thomas L. Pierson, Herman Leibowitz
  • Publication number: 20130219915
    Abstract: A fuel air heat exchanger for a gas turbine engine having fuel and air conduits in heat exchange relationship with one another, and a distribution conduit in heat exchange relationship with a component to be cooled. The distribution conduit is in fluid communication with the outlet of each air conduit. The heat exchanger also includes a secondary air inlet in fluid communication with the distribution conduit and a flow selection member selectively movable between first and second configurations. In the first configuration, the flow selection member closes the fluid communication between the secondary inlet and the distribution conduit. In the second configuration, the flow selection member opens the fluid communication between the secondary air inlet and the distribution conduit.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 29, 2013
    Inventors: Lev Alexander PROCIW, Eduardo Hawie
  • Patent number: 8505309
    Abstract: Systems and methods for improving the efficiency of a power generation facility utilize heat energy to preheat inlet-air that is supplied to the compressor of a turbine or to preheat fuel that is burned in the turbine. The heat energy used to preheat the inlet-air can be drawn from a heat recovery steam generator (HRSG) that produces steam using at least part of the exhaust gas of the turbine. The heat energy can be obtained from one or more predetermined points within the HRSG, such as a feed water line exiting a drum of the HRSG or a feed line connecting an economizer of the HRSG to a drum of the HRSG. The fluid drawn from the predetermined point passes through a heat exchanger or a preheater to remove the heat energy used for preheating. The fluid is then returned to the HRSG immediately downstream from the point from which it was drawn.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: August 13, 2013
    Assignee: General Electric Company
    Inventors: Barrett Gardiner, Brett Thompson, Aaron Vorel, Kihyung Kim, Ricky Conard
  • Publication number: 20130199202
    Abstract: In one embodiment of the present disclosure, a gas turbine system for part load efficiency improvement and anti-icing within the inlet and at the compressor inlet is described. The system includes a gas turbine having a compressor which receives inlet-air. A direct-contact heat exchanger heats the inlet-air before the inlet-air flows through the inlet and to the compressor. Heating the inlet-air reduces an output of the gas turbine and extends the turndown range, and avoids ice-forming conditions within the inlet and at the compressor inlet bellmouth. The direct-contact heat exchanger may also be configured to act as an evaporative cooler, air chiller, or use liquid dessicant.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jianmin Zhang, James Patrick Tomey
  • Patent number: 8474241
    Abstract: A gas turbine engine system includes a gas turbine engine using vaporized liquefied gas as fuel. The gas turbine engine is configured to ingest intake air from an intake port and direct exhaust gases to an exhaust port. The gas turbine engine system also includes a heat exchanger with a heat transfer fluid therein. The heat exchanger is configured to create at least a part of the fuel by heating the liquefied gas. The gas turbine engine system also includes an intake air temperature control circuit. The intake air temperature control circuit includes conduits configured to direct the heat transfer fluid to the intake port and the exhaust port. The gas turbine engine system also includes a control system configured to selectively direct the heat transfer fluid to one of the intake port and the exhaust port.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: July 2, 2013
    Assignee: Solar Turbines Inc.
    Inventors: Peter John Baron, David Anthony Pocengal, Rainer Kurz
  • Patent number: 8468830
    Abstract: A heating and cooling system for inlet air of a turbine compressor. The heating and cooling system may include a fluid coil positioned about the turbine compressor and a thermal energy storage tank. The fluid coil and the thermal energy storage tank are in fluid communication such that fluid is both provided to the fluid coil from the thermal energy storage tank for exchanging heat with the inlet air and returned to the thermal energy storage tank without further heat exchange.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: June 25, 2013
    Assignee: General Electric Company
    Inventors: Abbas Motakef, Peter Feher
  • Publication number: 20130152602
    Abstract: A gas turbine engine has, in flow series, a compressor section, a combustor, and a turbine section. The engine further has a cooling system which diverts a cooling air flow received from the compressor section to a heat exchanger and then to the turbine section to cool a component thereof. The cooling air flow by-passes the combustor and is cooled in the heat exchanger. The cooling system has a valve arrangement which regulates the cooling air flow. The engine further has a closed-loop controller which estimates and/or measures one or more temperatures of the cooled component, compares values derived from the estimated and/or measured temperatures with one or more corresponding targets, and issues a demand signal to the valve arrangement based on the comparison and a value of the demand signal at a previous time step.
    Type: Application
    Filed: November 20, 2012
    Publication date: June 20, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: Rolls-Royce PLC
  • Publication number: 20130104562
    Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes a gas turbine system adapted to combust a fuel and an oxidant in the presence of a compressed recycle stream to provide mechanical power and a gaseous exhaust. The compressed recycle stream acts to moderate the temperature of the combustion process. A boost compressor can boost the pressure of the gaseous exhaust before being compressed into the compressed recycle stream. A purge stream may be tapped off from the compressed recycle stream and directed to a C02 separator which discharges C02 and a nitrogen-rich gas, which may be expanded in a gas expander to generate additional mechanical power.
    Type: Application
    Filed: June 9, 2011
    Publication date: May 2, 2013
    Inventors: Russell H. Oelfke, Moses Minta
  • Publication number: 20130074511
    Abstract: A gas turbine system comprises a gas turbine having a low pressure compression stage and a high pressure compression stage, a combustion chamber, and an expansion stage connected to the combustion chamber. The low pressure compression stage and the high pressure compression stage are connected with each other via an intercooling stage, wherein the low pressure compressed air stream from the low pressure compression stage is chilled to an intercooling temperature that is lower than the ambient temperature of the air source from which the air stream was supplied to the low pressure compression stage of the gas turbine.
    Type: Application
    Filed: September 6, 2010
    Publication date: March 28, 2013
    Inventors: Irina Tanaeva, Edwin Snoeks
  • Patent number: 8365530
    Abstract: A system for conditioning an airstream entering an air-breathing machine includes an air conditioning system (ACS) configured for adjusting a physical property of the airstream, wherein the ACS comprises a module. The module includes a non-media conditioning system configured for adjusting a physical property of the airstream if an ambient condition is within a range, wherein the non-media conditioning system comprises nozzles adapted for spraying a fluid onto the airstream. The module also includes a media conditioning system configured for adjusting a physical property of the airstream to provide additional output of the air-breathing machine, wherein the media conditioning system comprises a direct exchange medium and a fluid distribution manifold. The ACS operates in a direct evaporative mode if the fluid is approximately greater than a dew point temperature and operates in a direct chilling mode if the fluid is approximately less than a dew point temperature.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: February 5, 2013
    Assignee: General Electric Company
    Inventors: Jianmin Zhang, Douglas S. Byrd, James P. Tomey
  • Patent number: 8356485
    Abstract: An integrated gasification combined cycle power generation system (100). In one embodiment, shown in FIG. 1, a gasifier (108) is configured to generate synthetic gas (117) from a carbonaceous material (106) and an oxygen supply (109) with a cleaning stage (120) positioned to receive synthetic gas (117) from the gasifier (108) and remove impurities therefrom. A gas turbine combustion system (2) including a turbine (123) is configured to receive fuel (128) from the gasifier (108) and a first air supply (131) from a first air compressor (130). A steam turbine system (4) is configured to generate power with heat recovered from exhaust (140) generated by the gas turbine system (2) and an ion transport membrane air separation unit (110) includes a second air compressor (114) for generating a second air supply (113).
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: January 22, 2013
    Assignee: Siemens Energy, Inc.
    Inventors: Terrence B. Sullivan, David J. Huber
  • Patent number: 8356466
    Abstract: A heating and cooling system for inlet air of a gas turbine engine in a combined cycle power plant having a steam turbine. The heating and cooling system may include a fluid coil positioned about the gas turbine engine, a heat exchanger in communication with the fluid coil, and a condenser in communication with the steam turbine and the heat exchanger such that waste heat from the steam turbine is forwarded to the fluid coil.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: January 22, 2013
    Assignee: General Electric Company
    Inventors: Abbas Motakef, Peter Feher
  • Publication number: 20120279228
    Abstract: There is disclosed a gas cooler 20 for providing high-pressure sealing gas to a bearing chamber. The cooler comprises a turbine 22; a turbine inlet 24 arranged to receive gas to drive the turbine and a turbine outlet 26 arranged to deliver gas output from the turbine; a compressor 28 arranged to be driven by the turbine 22; a compressor inlet 30 arranged to receive gas to be compressed by the compressor and a compressor outlet 32 arranged to deliver gas output from the compressor 28; and a cooler outlet 36 in fluid communication with the turbine outlet 26 and the compressor outlet 32 so as to deliver high-pressure sealing gas comprising gas merged from the turbine outlet 26 and the compressor outlet 32.
    Type: Application
    Filed: April 4, 2012
    Publication date: November 8, 2012
    Applicant: ROLLS-ROYCE PLC
    Inventors: Paul W. FERRA, Yi WANG
  • Patent number: 8286431
    Abstract: A method and system for augmenting the output of a combined cycle power plant having a gas turbine driving a generator, a heat recovery steam generator that recovers exhaust heat from the gas turbine to drive a steam turbine also driving a generator, and a refrigeration element that is powered by available energy in steam exhausted from the steam turbine to cool water. The refrigeration element employs a substantially closed cycle refrigeration system that is either an absorption chilling system or a thermal compression chilling system. The refrigeration element provides cool water to an inlet chiller arranged to chill inlet to the gas turbine to augment the power output of the gas turbine and the water is recirculated to be chilled and used again. Since the refrigeration cycle is substantially closed, little or no additional plant water consumption is imposed on the power plant.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: October 16, 2012
    Assignee: Siemens Energy, Inc.
    Inventors: Michael S. Briesch, Keith B. McLaurin
  • Patent number: 8266910
    Abstract: An application and process that incorporates an external heat source to increase the temperature of the airstream entering a compressor section of a combustion turbine. The application and process may perform an anti-icing operation that may not require an Inlet Bleed Heat system (IBH) to operate. Additionally, the application and process may perform an anti-icing operation that may allow for the IGV angle to remain nearly constant. The application and process may increase the output and efficiency of a combustion turbine operating at partload by delaying IBH operation and delaying the closing IGVs.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: September 18, 2012
    Assignee: General Electric Company
    Inventors: Peter Feher, Abbas Motakef
  • Patent number: 8256229
    Abstract: In one exemplary embodiment, a gas turbine engine includes a turbine and a high pressure compressor. The high pressure compressor includes a last stage having a last stage compressor blade and a last stage vane. The gas turbine engine includes a first flow path through which bleed air flows to the turbine and a second flow path through which air from the last stage of the high pressure compressor flows. The bleed air in the first flow path exchanges heat with a portion of the air in the second flow path in a heat exchanger to cool the air in the second flow path. The cooled air in the second flow path is returned to the high pressure compressor to cool the high pressure compressor.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: September 4, 2012
    Assignee: United Technologies Corporation
    Inventors: Jorn A. Glahn, Peter M. Munsell, Steven B. Johnson
  • Patent number: 8220268
    Abstract: A turbine engine is disclosed. The turbine engine may have a first compressor configured to pressurize inlet air, and a second compressor configured to further pressurize the inlet air. The turbine engine may also have a cooling circuit fluidly located to cool the inlet air after the inlet air is pressurized by the first compressor and before the inlet air is further pressurized by the second compressor. The cooling circuit may have a first heat exchanger configured to transfer heat from the inlet air to a fuel of the engine, and a second heat exchanger configured to transfer heat from exhaust of the engine to the fuel of the engine.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: July 17, 2012
    Assignee: Caterpillar Inc.
    Inventor: James John Callas
  • Patent number: 8201411
    Abstract: A deep chilled air washer for a gas turbine compressor. The deep chilled air washer may include one or more spray arrays for chilling an inlet air stream and one or more drift eliminators positioned downstream of the spray arrays. The drift eliminators may include a heating element therein so as to reheat the inlet air stream.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: June 19, 2012
    Assignee: General Electric Company
    Inventor: Peter Feher
  • Patent number: 8196413
    Abstract: Contemplated plants integrate regeneration of a freeze point depressant with LNG regasification and a power cycle. Most preferably, the plant is a combined cycle plant in which heat for reboiling the regenerator is provided by the steam cycle, and in which LNG refrigeration content is used to condense steam from the regenerator and to further subcool intake air for a combustion turbine.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: June 12, 2012
    Assignee: Fluor Technologies Corporation
    Inventor: John Mak
  • Patent number: 8157512
    Abstract: A turbomachine includes a compressor having an intake portion and an outlet portion. The compressor compresses air received at the intake portion to form a compressed airflow that is passed from the outlet portion. The turbomachine also includes an intercooler operatively connected downstream from the compressor. The intercooler includes a plurality of heat pipes that are configured to extract heat from the compressed airflow.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: April 17, 2012
    Assignee: General Electric Company
    Inventors: Hua Zhang, Jatila Ranasinghe, David Wesley Ball, Jr.
  • Patent number: 8151549
    Abstract: A high humidity gas turbine equipment includes a turbine; a compressor; a humidifier, which brings the air compressed by the compressor into contact with feed water to humidify the air; a regenerative heat exchanger, which causes the air humidified by the humidifier to be heated by exhaust gas from the turbine; a combustor, which burns the air heated by the regenerative heat exchanger and fuel to generate the combustion gas; a deaerating equipment including a deaerating section, a water storage tank, and a steam generating section, which causes feed water and makeup water in the water storage tank to be heated by exhaust gas from the turbine to evaporate and supplies the steam to the deaerating section; and a feed water supply pipe, through which the feed water and the makeup water in the water storage tank are supplied to the humidifier.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: April 10, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Sasaki, Yoshiki Noguchi, Kenji Sakka, Hirotsugu Fukuhara
  • Patent number: 8141336
    Abstract: A combined cycle power plant includes a gas turbine having a first compressor, a second compressor downstream of the first compressor, and a regenerative heat exchanger between the first and second compressors. A steam generator is downstream of the gas turbine and receives exhaust from the gas turbine. A closed loop cooling system through the regenerative heat exchanger and the steam generator transfers heat from the regenerative heat exchanger to the steam generator. A method for operating a combined cycle power plant includes compressing a working fluid in a compressor and cooling the compressed working fluid with a regenerative heat exchanger so as to create a cooled compressed working fluid. The method further includes transferring heat from the regenerative heat exchanger to a steam generator.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: March 27, 2012
    Assignee: General Electric Company
    Inventors: Joseph John, Jegadeesan Maruthamuthu, Sudhahar Rajan, Venugopala Durwasula Raju
  • Patent number: 8112998
    Abstract: The turbine section of the turbine engine is provided with a flow of cooling air which is taken from a compressor section of the turbine engine. The air received from the compressor section is itself cooled before the air is delivered to the turbine. Heat is removed from the flow of air by a plurality of heat pipes which conduct heat away from the flow of air to lower the temperature of the air before it is provided to the turbine.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: February 14, 2012
    Assignee: General Electric Company
    Inventors: Yang Liu, Hua Zhang
  • Patent number: 8104259
    Abstract: A method for operating a power plant to facilitate reducing emissions, wherein the power plant includes a gas turbine engine assembly and a carbon dioxide (CO2) separator. The method includes increasing an operating pressure of exhaust gas discharged from the gas turbine engine assembly, separating substantially all the CO2 entrained within the gas turbine engine utilizing the CO2separator to produce a CO2 lean airstream, reducing the operating temperature of the CO2lean airstream, and utilizing the cooled CO2lean airstream to facilitate reducing an operating temperature of air entering the gas turbine engine assembly.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: January 31, 2012
    Assignee: General Electric Company
    Inventors: Narendra Digamber Joshi, Lautaro Aspiazu Montgomery, James William Stegmaier
  • Patent number: 8006499
    Abstract: The present invention provides a humid air turbine having a compressor, a humidificator for generating humid air by adding moisture to compressed air supplied from the compressor, a combustor, a turbine, a recuperator for effecting heat exchange between exhaust from the turbine and the humid air, an economizer for effecting heat exchange between exhaust from the recuperator and water, and a system for supplying the water heated by the economizer to the humidificator. The humid air turbine includes a temperature measurement device for measuring the temperature of gas discharged from the economizer, and a control device for adjusting the amount of moisture to be supplied to the humidificator in accordance with a temperature signal from the temperature measurement device. The present invention assures low NOx of combustor and flame stability before and after water addition to the humid air turbine.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: August 30, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tomomi Koganezawa, Yukinori Katagiri, Keisuke Miura
  • Patent number: 8001760
    Abstract: A gas turbine is driven by a combustion gas produced when BFG compressed by a gas compressor and air compressed by a compressor are burned in a combustor. Steam is generated from a waste heat boiler by utilization of heat of an exhaust gas from the gas turbine, and a steam turbine is driven by this steam. An electric generator generates electricity upon driving of the turbines. A condensing heat exchanger is disposed in an air intake duct, and part of steam from the waste heat boiler flows through the heat exchanger to heat intake air. The amount of steam that flows through the heat exchanger is adjusted by adjusting the degree of opening of a steam control valve by a control device. By so doing, the ignition performance of the gas turbine in a BFG-fired gas turbine combined cycle plant is enhanced even in an extremely cold district.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: August 23, 2011
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Shoichi Harada
  • Patent number: 7980081
    Abstract: Contemplated configurations and methods use first and second precoolers, preferably in alternating operation, to provide a combustion turbine with air at a temperature of 50° F., and more typically less than 32° F. and most typically less than 0° F. In such configurations and methods it is generally preferred that a heat transfer fluid circuit provides both, heated and cooled heat transfer fluid to thereby allow cooling and deicing of the precoolers. Most preferably, refrigeration is provided from an LNG regasification unit to form the cooled heat transfer fluid while heat from a power cycle (e.g., from surface condenser) is used to form the heated heat transfer fluid.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: July 19, 2011
    Assignee: Fluor Technologies Corporation
    Inventor: John Mak
  • Patent number: 7971438
    Abstract: Environmental concerns have resulted in consideration of the effects of condensation trails from gas turbine engines. By provision of a condensation stage in a heat exchanger arrangement for a gas turbine engine the level of condensation within a final exhaust gas flow G from an engine is reduced. Furthermore, by cooling of the exhaust gas flows for mixing with by-pass air flows a water partial pressure at an exhaust gas exit temperature can be provided which is below the eutectic liquid to vapor phase transition and therefore avoid condensation (contrail) formation.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: July 5, 2011
    Assignee: Rolls-Royce plc
    Inventors: Mark D Taylor, Frank G Noppel, Ritindar Singh
  • Patent number: 7963095
    Abstract: An embodiment of the present invention provides an air conditioning system located upstream of the inlet system for a gas turbine. The air conditioning system may include at least one conditioning module for adjusting the temperature of the airstream. The at least one conditioning module may have a plurality of forms including at least one of the following systems: a chiller, an evaporative cooler; a spray cooler, or combinations thereof. The specific form of the at least one conditioning module may be determined in part the configuration of the gas turbine.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: June 21, 2011
    Assignee: General Electric Company
    Inventors: Rahul J. Chillar, David L. Rogers, Abbas Motakef
  • Publication number: 20110088399
    Abstract: A method and system for augmenting the output of a combined cycle power plant having a gas turbine driving a generator, a heat recovery steam generator that recovers exhaust heat from the gas turbine to drive a steam turbine also driving a generator, and a refrigeration element that is powered by available energy in steam exhausted from the steam turbine to cool water. The refrigeration element employs a substantially closed cycle refrigeration system that, in a preferred embodiment, is either an absorption chilling system or a thermal compression chilling system. The refrigeration element provides cool water to an inlet chiller arranged to chill inlet to the gas turbine to augment the power output of the gas turbine and the water is recirculated to be chilled and used again. Since the refrigeration cycle is substantially closed, little or no additional plant water consumption is imposed on the power plant.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 21, 2011
    Inventors: Michael S. Briesch, Keith B. McLaurin
  • Patent number: 7926261
    Abstract: The invention is a turbofan provided with a pre-cooler. In order to evacuate the heated cool air stream, at least one discharge pipe is arranged in a chamber and connects the pre-cooler to at least one discharge orifice provided in the inner fairing, in output of an exhaust nozzle and at least more or less opposite the wing.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: April 19, 2011
    Assignee: Airbus France
    Inventor: Alain Porte
  • Patent number: 7913936
    Abstract: A silencer in a flow duct (10) comprises at least one plate-shaped element (12) which extends essentially parallel to the throughflow direction (16) of the flow duct. Integrated in the plate-shaped element (12), preferably in the downstream region, are means (13, 14) for feeding and for spraying a liquid (15) into the throughflow of the flow duct. The spraying means are preferably arranged in such a way that the liquid (15) is sprayed at an angle of at least 30° to the throughflow (16). The silencer according to the invention is used, for example, in the intake duct of a gas turboset.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: March 29, 2011
    Assignee: Alstom Technology Ltd
    Inventor: Juergen Hoffmann
  • Patent number: 7861513
    Abstract: A gas turbine engine comprising a ventilation zone defined between a core engine casing and a core fairing and having a discharge nozzle, the engine further comprises a pre-cooler having a flow of coolant therethrough and which coolant being ducted into the ventilation zone wherein an additional ventilation zone outlet system is provided and comprises a variable area outlet.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: January 4, 2011
    Assignee: Rolls-Royce PLC
    Inventor: Richard G. Stretton
  • Patent number: 7856824
    Abstract: Cooling systems for an aircraft are provided. In an embodiment, a system includes an engine nacelle, an engine, a bypass duct, and a heat exchanger. The engine nacelle includes an airflow inlet. The engine is housed in the engine nacelle in flow communication with the airflow inlet. The bypass duct extends between the engine nacelle and the engine is in flow communication with the airflow inlet. The bypass duct includes an outer wall and an opening formed therein. The heat exchanger is integrated with the engine and is disposed over the opening of the bypass duct outer wall between the bypass duct outer wall and the engine nacelle.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: December 28, 2010
    Assignee: Honeywell International Inc.
    Inventors: Morris G. Anderson, William E. Alford, Michael L. Trego, Ron Haugland, David K. Winstanley
  • Patent number: 7827795
    Abstract: A fuel injector and turbine engine incorporating the fuel injector are provided. The fuel injector includes an active cooling system that insulates fuel flowing through the fuel injector from heat energy within the turbine engine. The cooling system includes a cooling air passage that includes an inlet and an outlet. The inlet and outlet are in fluid communication with the interior of an engine case of the turbine engine. The inlet is at a higher air pressure location than the outlet such that air is siphoned through the cooling air passage. A portion of the cooling air passage includes a heat exchanger for extracting heat energy from the cooling air. The cooling air passes through the fuel injector after it has passed through the heat exchanger. The heat exchanger is positioned external to the engine case and in thermal communication with the ambient.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: November 9, 2010
    Assignee: Woodward Governor Company
    Inventors: Paul G. Hicks, Fei Philip Lee
  • Patent number: 7827794
    Abstract: The power plant combusts a hydrocarbon fuel with oxygen to produce high temperature high pressure products of combustion. These products of combustion are routed through an expander to generate power. The products of combustion are substantially free of oxides of nitrogen because the oxidizer is oxygen rather than air. To achieve fast starting, oxygen, fuel and water diluent are preferably stored in quantities sufficient to allow the power plant to operate from these stored consumables. The fuel can be a gaseous or liquid fuel. The oxygen is preferably stored as liquid and routed through a vaporizer before combustion in a gas generator along with the hydrocarbon fuel. In one embodiment, the vaporizer gasifies the oxygen by absorption of heat from air before the air is routed into a separate heat engine, such as a gas turbine. The gas turbine thus operates on cooled air and has its power output increased.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: November 9, 2010
    Assignee: Clean Energy Systems, Inc.
    Inventors: Keith L. Pronske, Fermin Viteri, Scott MacAdam, Lawrence C. Hoffman
  • Patent number: 7810332
    Abstract: A gas turbine includes a compressor for compressing the combustion air, at least one combustion chamber, in which a fuel is burned while compressed combustion air is supplied, and at least one first turbine arranged downstream of the combustion chamber and in which the hot combustion gases from the combustion chamber are expanded to perform work. Part of the compressed combustion air is branched off, cooled in a cooling air cooler, brought to a lower cooling air pressure by a second turbine and supplied to the gas turbine for cooling purposes.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: October 12, 2010
    Assignee: Alstom Technology Ltd
    Inventors: Sven Olmes, Wilhelm Reiter, Thomas Zierer
  • Patent number: 7772715
    Abstract: Power-generating units and compressor units are arranged in a compressed-air energy storage power station. According to one aspect of the invention, a common grid connection transformer is arranged, to which the power-generating units and the compressor units can selectively be connected. According to a further aspect of the invention, the power-station installation is subdivided into a power-generating area (I) in which the power-generating units are arranged, a switching and voltage-conversion area (II) in which a grid connection transformer is arranged, and a compressor area (III) in which the compressor units are arranged. The stated areas are arranged physically separately from one another. Power-station installations according to the invention can advantageously be combined to form modular power-station centers, which advantageously have common voltage rails and media rails.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: August 10, 2010
    Assignee: Alstom Technology Ltd
    Inventor: Karl Wiederhold
  • Patent number: 7762054
    Abstract: An addition to the air compressor of a combustion turbine system is disclosed, which chills the inlet air on warm days. The same equipment with minimal modification is used to prevent inlet air icing conditions on cold days. Referring to FIG. 1, inlet air conditioner heat exchanger 3 supplies conditioned (chilled or heated) air to the combustion turbine, and heat recovery unit 1 supplies turbine exhaust heat to ammonia absorption refrigeration unit 2. Control valves 5, 6, 7, and 8 selectively supply either chilling refrigerant liquid or heating vapor from AARU 2 to conditioning heat exchanger coil 3.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: July 27, 2010
    Inventors: Donald Charles Erickson, Gopalakrishnan Anand
  • Publication number: 20100146977
    Abstract: A deep chilled air washer for a gas turbine compressor. The deep chilled air washer may include one or more spray arrays for chilling an inlet air stream and one or more drift eliminators positioned downstream of the spray arrays. The drift eliminators may include a heating element therein so as to reheat the inlet air stream.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Peter Feher
  • Publication number: 20100146976
    Abstract: A heating and cooling system for inlet air of a turbine compressor. The heating and cooling system may include a fluid coil positioned about the turbine compressor and a thermal energy storage tank. The fluid coil and the thermal energy storage tank are in fluid communication such that fluid is both provided to the fluid coil from the thermal energy storage tank for exchanging heat with the inlet air and returned to the thermal energy storage tank without further heat exchange.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Applicant: General Electric Company
    Inventors: Abbas Motakef, Peter Feher
  • Patent number: 7716930
    Abstract: An integrated power plant cooling system for an electrical generating power plant driven by a gas turbine to cool power plant components is provided. The integrated cooling system includes a heat source extracted from the power plant and an absorption chiller utilizing energy from the heat source to cool a chilling medium. An integrated cooling skid includes heat removal devices for a plurality of power plant components. The chilling medium output from the absorption chiller is circulated to the heat removal devices for the power plant components of the integrated cooling skid. Plant cooling water may remove heat from the absorption chiller.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: May 18, 2010
    Assignee: General Electric Company
    Inventors: Rahul J. Chillar, Raub W. Smith
  • Patent number: 7712300
    Abstract: A water treatment and pressurization system for the adiabatic cooling of comburent air destined for plants using gas turbines (15), run by measuring, control and regulation units, comprising a lifting and pressurizing station (16) of vaporization water at a varying flow-rate for a maximum operating pressure, preferably up to 120 bar, associated with a series of nozzles (20) situated on nozzle-holder ramps (12) downstream of which there is at least one housing unit (44) for humidity and temperature probes (52-55). The lifting station (16) comprises at least two pumps (22) with relative auxiliaries devices connected to nozzle-holder collectors (39).
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: May 11, 2010
    Assignee: Edoardo Lossa S.p.A.
    Inventors: Leopoldo Bevilacqua, Roberto Gasparetto, Aldo Di Rienzo
  • Patent number: 7690202
    Abstract: A method for supplying power to a remote load includes coupling a gas turbine engine to a vessel that is not used to provide propulsion for the vessel, coupling a generator to the gas turbine engine, coupling an intercooler system downstream from a first compressor such that compressed air discharged from the first compressor is channeled therethrough, the intercooler system includes an intercooler and a first heat exchanger, channeling a first working fluid through the intercooler to facilitate reducing an operating temperature of air discharged from the intercooler to a second compressor, channeling a second working fluid flowing through the first heat exchanger to extract energy from the first working fluid to facilitate reducing an operating temperature of the first working fluid, and operating the gas turbine engine and generator to supply power to a load that is located remotely from the vessel.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: April 6, 2010
    Assignee: General Electric Company
    Inventors: Gilbert Henry Badeer, Narendra Digamber Joshi
  • Patent number: 7685827
    Abstract: A method for operating a gas turbine engine, including a first compressor, a second compressor, and a turbine, coupled together in serial flow arrangement. The method includes channeling compressed airflow discharged from the first compressor through an intercooler having a cooling medium flowing therethrough, operating the intercooler such that condensate is formed in the intercooler from the compressed airflow, and channeling the condensate to an inlet of the first or second compressor to facilitate reducing an operating temperature of the gas turbine engine.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: March 30, 2010
    Assignee: General Electric Company
    Inventors: Michael Joseph Reale, Narendra Digamber Joshi, David Paul Wolf
  • Patent number: 7648564
    Abstract: An air bypass system for a gas turbine inlet filter house having a power augmentation system. The air bypass system may include a duct positioned on the inlet filter house about the power augmentation system and a damper positioned within the duct so as to open and close the duct.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: January 19, 2010
    Assignee: General Electric Company
    Inventors: Rahul J. Chillar, Raub Warfield Smith, Alston Ilford Scipio
  • Patent number: RE44079
    Abstract: A method for cooling inlet air to a gas turbine is provided. For example, a method is described including passing inlet air through a cooling coil that includes an opening for receiving the inlet air and that is operably connected to a gas turbine power plant. The gas turbine power plant may include at least one gas turbine, and at least one gas turbine inlet which receives the inlet air. The method may further include passing circulating water through a water chiller at a first flow rate to reduce the temperature of the circulating water, the water chiller including a conduit through which the circulating water is capable of passing and passing the circulating water having the first flow rate through the cooling coil in an amount sufficient to lower the temperature of the inlet air.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: March 19, 2013
    Assignee: TAS, Ltd.
    Inventor: Tom L. Pierson