Patent application number | Description | Published |
20120260667 | Power Plant - A power plant is provided and includes a gas turbine engine to generate power, a heat recovery steam generator (HRSG) to produce steam from high energy fluids produced from the generation of power in the gas turbine engine, a steam turbine engine to generate additional power from the steam produced in the HRSG and a thermal load reduction system to reduce thermal loading of components of the HRSG and/or the steam turbine engine during at least startup and/or part load operations, which includes an eductor by which a mixture of compressor discharge air and entrained ambient air is injectable into the HRSG and/or an attemperator to cool superheated steam to be transmitted to the steam turbine engine and a detector disposed within the HRSG to facilitate identification of hot spots therein. | 10-18-2012 |
20130125557 | METHOD AND APPARATUS FOR OPTIMIZING THE OPERATION OF A TURBINE SYSTEM UNDER FLEXIBLE LOADS - A gas turbine system includes a compressor protection subsystem; a hibernation mode subsystem; and a control subsystem that controls the compressor subsystem and the hibernation subsystem. At partial loads on the turbine system, the compressor protection subsystem maintains an air flow through a compressor at an airflow coefficient for the partial load above a minimum flow rate coefficient where aeromechanical stresses occur in the compressor. The air fuel ratio in a combustor is maintained where exhaust gas emission components from the turbine are maintained below a predetermined component emission level while operating at partial loads. | 05-23-2013 |
20130193127 | COMBUSTION TURBINE INLET ANTI-ICING RESISTIVE HEATING SYSTEM - A resistive heating system for a combustion turbine susceptible to inlet air filter house component and compressor icing includes a plurality of heating panels (bundles) arranged in a substantially-planar array, adapted to be located on or adjacent to the turbine's inlet air filter house. Each heating panel is provided with one or more electrically-resistive heating elements; and a controller for selectively activating the resistive heating elements on each of the plurality of heating panels. | 08-01-2013 |
20130318941 | Supercharged Combined Cycle System With Air Flow Bypass - A system and method for supercharging a combined cycle system includes a forced draft fan providing a variable air flow. At least a first portion of the air flow is directed to a compressor and a second portion of the airflow is diverted to a heat recovery steam generator. A control system controls the airflows provided to the compressor and the heat recovery steam generator. The system allows a combined cycle system to be operated at a desired operating state by controlling the flow of air from the forced draft fan to the compressor and the heat recovery steam generator. | 12-05-2013 |
20130318965 | Supercharged Combined Cycle System With Air Flow Bypass To HRSG And Hydraulically Coupled Fan - A supercharging system for a gas turbine system having a compressor, a combustor, a turbine and a shaft includes a prime mover and a fan assembly that provides an air stream at an air stream flow rate. A hydraulic coupler is coupled to the prime mover and the fan assembly and a second torque converter may couple the supercharger prime mover to an electrical generator. The supercharging system also includes a subsystem for conveying a first portion of the air stream to the compressor, and a bypass subsystem for optionally conveying a second portion of the air stream to other uses. | 12-05-2013 |
20130318984 | Gas Turbine Compressor Inlet Pressurization Having a Torque Converter System - A supercharging system for a gas turbine system includes a compressor, a combustor, a turbine and a shaft. The supercharging system includes a fan assembly that provides an air stream and a torque converter coupled to the shaft and the fan assembly. The supercharging system also includes a subsystem for conveying a first portion of the air stream output to the compressor; and a bypass subsystem for optionally conveying a second portion of the air stream output to other uses. | 12-05-2013 |
20130318987 | SUPERCHARGED COMBINED CYCLE SYSTEM WITH AIR FLOW BYPASS TO HRSG AND FAN - A supercharging system includes a fan providing an air flow, and a prime mover that drives the fan. A duct directs a first portion of the air flow to a gas turbine system, a main bypass subsystem diverts a second portion of the air flow to a heat recovery steam generator; and a drive bypass subsystem that diverts a third portion of the air flow to the prime mover. The prime mover may be one of an aeroderivative gas turbine, a gas turbine, a reciprocating engine, a steam turbine and an induction motor and a variable frequency drive. | 12-05-2013 |
20130330172 | METHOD, SYSTEM AND APPARATUS FOR ENHANCED OFF LINE COMPRESSOR AND TURBINE CLEANING - Methods, systems and apparatus for cleaning turbines, such as power generation turbines, are disclosed. Supplemental piping is connected to existing compressor air extraction and turbine nozzle cooling air piping, to supply water and/or cleaning agents into areas of a turbine not ordinarily accessible by injection of water and/or cleaning agents into the bellmouth of the turbine alone. Pressure and flow sensors, pumps, valving, and a control system to regulate the operation of the pumps and valving are provided to control the introduction of water and/or cleaning agents into the turbine. | 12-12-2013 |
20130340439 | Systems and Methods for De-Icing a Gas Turbine Engine Inlet Screen and Dehumidifying Inlet Air Filters - A system for de-icing a gas turbine engine is provided. A manifold is coupled to an inlet screen. A first conduit is coupled to a stage of the compressor and a first input of a mixing component. A second conduit is coupled to the exhaust and a second input of the mixing component. The second conduit being adapted to extract exhaust gases without increasing the pressure at the exhaust. A third conduit is coupled to the output of the mixing component and the manifold. A method for de-icing a gas turbine engine inlet screen includes determining a current temperature at the inlet screen, and determining a desired temperature at the inlet screen. If the current temperature at the inlet screen is less than the desired temperature at the inlet screen first flow rate of an air-exhaust mixture necessary to achieve the desired inlet screen temperature is calculated. The method also includes extracting an amount of exhaust gas from a turbine exhaust subsystem without increasing a pressure at the turbine exhaust subsystem, extracting an amount of air from a compressor stage, and mixing the amount of exhaust gas with the amount of air to generate an air-exhaust mixture that is conveyed to the inlet screen. | 12-26-2013 |
20140069744 | SYSTEM AND METHOD FOR SUPPLYING LUBE OIL TO A GAS TURBINE - A system for supplying lube oil to a gas turbine includes an auxiliary lube oil skid and an auxiliary lube oil pump. A first fluid connection to supply piping of a main lube oil system is downstream from the auxiliary lube oil pump. A second fluid connection to return piping of the main lube oil system is upstream from the auxiliary lube oil pump. A method for supplying lube oil to a gas turbine includes connecting an auxiliary lube oil pump to supply piping of a main lube oil system, connecting the auxiliary lube oil pump to return piping of the main lube oil system, and operating the auxiliary lube oil pump to supply lube oil to the supply piping. | 03-13-2014 |
20140079538 | REPLACEABLE SEALS FOR TURBINE ENGINE COMPONENTS AND METHODS FOR INSTALLING THE SAME - An assembly and method are provided for sealing a compressor in a gas turbine engine. The method comprises forming an annular groove in a compressor casing such that the groove extends circumferentially about a rotor that is housed within the casing. The compressor casing is then coupled to the rotor such that the compressor casing extends circumferentially about the rotor. A plurality of arcuate seal segments are then inserted into the annular groove without removing the rotor from the compressor casing such that the plurality of seal segments extend circumferentially about the rotor to facilitate sealing a gap that is defined between the rotor and the compressor casing. | 03-20-2014 |
20140090354 | TURBINE EXHAUST PLUME MITIGATION SYSTEM - Various embodiments include an exhaust plume mitigation system for a turbine and systems incorporating the exhaust plume mitigation system. In some embodiments, the exhaust plume mitigation system includes: a first conduit fluidly connecting a compressor to an exhaust chamber of the turbine; a first control valve operably connected with the first conduit for regulating flow of compressor air through the first conduit; and a fluid inductor including: a first inlet fluidly connected with the first conduit; a second inlet fluidly connected with ambient; and an outlet fluidly connected with the exhaust chamber. | 04-03-2014 |
20140102179 | TURBINE LEAK DETECTION SYSTEM - Various embodiments include a leak detection system for a turbine compartment. In some embodiments, the leak detection system includes: a tracer fluid system fluidly connected with the turbine compartment, the tracer fluid system configured to provide an optically detectable fluid to a fluid supply of the turbine compartment; an optical detection system operably connected to the turbine compartment, the optical detection system configured to detect the presence of the optically detectable fluid in at least one location of the turbine compartment; and a control system operably connected to the tracer fluid system and the optical detection system, the control system configured to obtain data about the presence of the optically detectable fluid in the at least one location, and provide an indicator indicating a potential leak location based upon the data about the presence of the optically detectable fluid in the at least one location. | 04-17-2014 |
20140123666 | System to Improve Gas Turbine Output and Hot Gas Path Component Life Utilizing Humid Air for Nozzle Over Cooling - A system to improve gas turbine output and extend the life of hot gas path components includes a subsystem for estimating an amount of water or steam to be added to the flow of air to achieve the desired hot gas path temperature. The system includes a water or steam injection component adapted to inject the amount of water or steam to the flow of air to generate a flow of humid air and an injection subsystem adapted to inject the flow of humid air into a nozzle at the turbine stage are also included. The system includes a temperature sensor disposed at a turbine stage, and a subsystem for determining a desired hot gas path temperature at the turbine stage. An extraction conduit is coupled to a compressor stage and is adapted to extract a flow of air. | 05-08-2014 |
20140123853 | OFFLINE WATER WASH SYSTEM FOR INLET FILTERS AND FILTER HOUSE - A filter house and cleaning system arrangement for a turbine system and an associated method. The arrangement includes a filter house and filter elements within the filter house. The arrangement includes nozzles that spray a fluid on the filter elements to provide cleaning of the filter elements. The nozzles have structure that permits the nozzles to move within the filter house to adjust where on the filter elements the fluid is sprayed. The arrangement includes a detection device configured to detect a level of cleanliness and provide an output that indicates the level of cleanliness. | 05-08-2014 |
20140124007 | OFFLINE COMPRESSOR WASH SYSTEMS AND METHODS - The present application thus provides a wash system for use with a compressor having a bellmouth and one or more extraction pipes. The wash system may include a water source, a first fluid source, a mixing chamber in communication with the water source and the first fluid source, a bellmouth line in communication with the mixing chamber and the bellmouth, and a stage line in communication with one of the extraction pipes. | 05-08-2014 |
20140150447 | LOAD RAMP AND START-UP SYSTEM FOR COMBINED CYCLE POWER PLANT AND METHOD OF OPERATION - The disclosure includes a load ramp system for a heat recovery steam generator (HRSG) of a combined cycle power plant and a method of increasing the rate of the load ramp process of a gas turbine system of the combined cycle power plant. In one embodiment, the load ramp system for the HRSG of the combined cycle power plant includes a conduit in fluid communication with a supercharger positioned upstream of a compressor of a gas turbine system in the combined cycle power plant. The conduit of the load ramp system is configured to direct a portion of supercharged air for use in cooling the HRSG during a load ramp process of the gas turbine system in the combined cycle power plant. | 06-05-2014 |
20140174163 | Systems and Methods For Measuring Fouling in a Turbine System - Systems and methods for measuring fouling in a gas turbine compressor include a conductivity resistance sensor disposed in a compressor inlet mouth. The degree of compressor fouling is correlated to changes in resistance measured by the conductivity resistance sensor. Measurements of resistance changes are converted to an indicia of fouling and used to trigger cleaning of the compressor. | 06-26-2014 |
20140174474 | SYSTEMS AND METHODS FOR WASHING A GAS TURBINE COMPRESSOR - A method is provided for washing a compressor in a gas turbine. The method includes establishing a compressor fouling set point and sensing a fouling level in the compressor with a sensor. The fouling level is communicated to a control subsystem that determines a wash initiation instruction based on the fouling level and the compressor fouling set point. The wash initiation instruction is executed by initiating a wash with a fluid. A system is also disclosed including a compressor, an on-line wash system coupled to the compressor, and a compressor fouling sensor that senses a compressor fouling level. A source of washing fluid is provided, and a control subsystem that initiates a wash with washing fluid from the source of washing fluid based on a compressor fouling level. | 06-26-2014 |
20140202334 | FILTER SYSTEM AND METHOD FOR LEAK IDENTIFICATION - A filter system and method utilizing a plurality of filters each with an electrically conductive material portion for conducting an electric current while the filter maintains a tight seal and for not conducting the electric current when the filter does not maintain the tight seal. | 07-24-2014 |
20140208755 | Gas Turbine Air Mass Flow Measuring System and Methods for Measuring Air Mass Flow in a Gas Turbine Inlet Duct - A method and system for measuring a mass flow rate in a portion of a flow path in an inlet duct of a gas turbine engine is provided. The system includes a sensor assembly attached to the inlet duct. The sensor assembly includes a tube with a longitudinal axis disposed in a substantially laminar flow region of the inlet duct, and a flow conditioner disposed in the tube. A hot wire sensor disposed in the tube is also provided. | 07-31-2014 |
20140208759 | APPARATUS AND METHOD FOR REDUCING OIL MIST INGESTION IN A HEAVY DUTY GAS TURBINE ENGINE - A lubrication system for a heavy duty gas turbine includes a bearing lubrication assembly coupled to the bearing and an oil and vapor extraction assembly disposed in a cavity defined by a bell mouth hood in an air inlet duct. A high volume vacuum blower is coupled to the oil and vapor extraction assembly to provide a relative negative pressure. An oil and vapor separator is disposed downstream from the high volume vacuum blower. The lubrication system also includes a control subsystem that maintains a cavity pressure lower than an air inlet pressure. | 07-31-2014 |
20140208764 | SYSTEMS AND METHODS FOR MEASURING A FLOW PROFILE IN A TURBINE ENGINE FLOW PATH - A method and system for measuring a flow profile in a portion of a flow path in a turbine engine is provided. The system includes a mass flow sensor assembly having a plurality of hot wire mass flow sensors, the mass flow sensor assembly disposed in the portion of the flow path at a location where the flow profile is to be measured. The system also includes a controller that converts signals from the temperature sensor, the pressure sensor and the plurality of hot wire mass flow sensors to flow profile measurements. | 07-31-2014 |
20140208765 | Systems And Methods To Extend Gas Turbine Hot Gas Path Parts With Supercharged Air Flow Bypass - A system and method for supercharging a combined cycle system includes a forced draft fan providing a variable air flow. At least a first portion of the air flow is directed to a compressor and a second portion of the airflow is diverted to a heat recovery steam generator. A control system controls the airflows provided to the compressor and the heat recovery steam generator. The system allows a combined cycle system to be operated at a desired operating state, balancing cycle efficiency and component life, by controlling the flow of air from the forced draft fan to the compressor and the heat recovery steam generator. | 07-31-2014 |
20140208942 | Method, Apparatus, And System For Air Filter Cleaning - Disclosed are methods, apparatuses, and systems for generating an alert message based on a determined crossing of a weight threshold of a filter. | 07-31-2014 |
20140210217 | Gas Turbine Under Frequency Response Improvement System and Method - A system and method is provided that improves the under frequency response of gas turbines by providing a fast-response power augmentation system. The system includes a tank storing a blended mixture of motive fuel such as ethanol or methanol and demineralized water in a predetermined ratio that is provided as a diluent to be injected into the compressor bellmouth, the Compressor Discharge Chamber (CDC), and/or the combustion system via one to three dedicated circuits. To achieve the instantaneous injection of the diluent at the correct pressure and for the appropriate duration to meet the needs of the gas turbine Grid compliance mandate, an accumulator is used as the motive force to drive the augmentation fluid in the dedicated circuits. The injected diluent is microprocessor controlled to either be simultaneous into all three circuits or is sequenced based on a determination of the best turbine control and performance. | 07-31-2014 |
20140210984 | System, Apparatus, And Method For Gas Turbine Leak Detection - Disclosed are systems, apparatuses, and methods for monitoring fluid passage. In an embodiment, a device may receive a thermographic image of a region comprising a fluid passage. Subsequently the device may determine that the thermographic image comprises an image pattern indicative of a degraded portion of the fluid passage. | 07-31-2014 |
20140286766 | Compressor Casing Assembly Providing Access To Compressor Blade Sealing Assembly - A compressor casing assembly includes a forward compressor casing, a removable cover and a seal assembly. A midcompressor casing is provided with a cavity adapted to receive the seal assembly, and a cover groove adapted to receive the removable cover. The removable cover secures the seal assembly. | 09-25-2014 |
20150044031 | AIR DISRUPTION SYSTEM FOR AN ENCLOSURE - An air disruption system for an enclosure includes an air delivery system, at least one plenum including an inlet fluidically connected to the air delivery system and at least one outlet, and a controller operatively connected to the air delivery system. The controller is configured and disposed to selectively cause one or more discrete amounts of air to pass into the at least one plenum and flow through the outlet creating a localized air disruption. | 02-12-2015 |
20150056066 | COMPRESSOR WASH SYSTEM WITH SPHEROIDS - The present application thus provides a cleaning system for use with a compressor of a turbine engine. The cleaning system may include a wash nozzle positioned about the compressor and a spheroid injection port to inject a number of spheroids therein. | 02-26-2015 |
20150056912 | SYSTEM ENCLOSURE VENTILATION MONITORING SYSTEM - A system enclosure ventilation monitoring system includes a controller having an enclosure temperature input configured to receive signals indicating internal temperatures of the system enclosure, an air circulating device speed input configured to receive signals indicating operating speed of at least one air circulating device, and a damper position input configured to receive a damper position signal and an output. The controller is configured and disposed to set damper position through the output based on at least one of the air circulating device speed input and the enclosure temperature input. | 02-26-2015 |
20150075170 | METHOD AND SYSTEM FOR AUGMENTING THE DETECTION RELIABILITY OF SECONDARY FLAME DETECTORS IN A GAS TURBINE - Systems and methods for operating a gas turbine combustion system by generating a flame detection signal are provided. A set of modeled parameters expected when there is a flame in a secondary combustion zone is calculated. A set of measured gas turbine parameters is measured. A flame validation signal based on the set of measured parameters and the set of modeled parameters is generated. The systems include a subsystem that calculates a set of modeled parameters expected when there is a flame in the secondary combustion zone and a subsystem that measures a set of measured parameters. A subsystem generates a flame validation signal based on the set of measured parameters and the set of modeled parameters. | 03-19-2015 |
20150076821 | System And Method To Minimize Grid Spinning Reserve Losses By Pre-Emptively Sequencing Power Generation Equipment To Offset Wind Generation Capacity Based On Geospatial Regional Wind Conditions - A system and method to preemptively adjust power generation of one or more non-wind power generators based on near term wind generation capability, spinning reserve margin, and/or power grid spinning reserve forecast requirements to offset wind power generation based on geospatial regional wind conditions. | 03-19-2015 |
20150081124 | System And Method To Minimize Grid Spinning Reserve Losses By Pre-Emptively Sequencing Power Generation Equipment To Offset Solar Generation Capacity Based On Geospatial Regional Solar And Cloud Conditions - A system and method to preemptively adjust power generation of one or more non-solar power generators based on near term solar generation capability, spinning reserve margin, and/or power grid spinning reserve forecast requirements to offset solar power generation based on geospatial regional solar conditions. | 03-19-2015 |