Patent application number | Description | Published |
20130028807 | METHOD AND SYSTEM FOR REMOVAL OF CARBON DIOXIDE FROM A PROCESS GAS - Disclosed is a method of removing carbon dioxide from a process gas, the method comprising: contacting an ammoniated solution with the process gas in an absorption arrangement | 01-31-2013 |
20130042621 | METHOD FOR INCREASING THE EFFICIENCY OF A POWER PLANT WHICH IS EQUIPPED WITH A GAS TURBINE, AND POWER PLANT FOR CARRYING OUT THE METHOD - In a power plant which is equipped with a gas turbine, fuel for the gas turbine is preheated by means of solar heat. The preheating is realized through the use of a heat transfer circuit. The use of an additional, second heat transfer circuit between the source for the solar heat and the first heat transfer circuit permits storage of the solar heat. The fuel preheating according to the invention permits in particular an increase in the efficiency of the power plant. | 02-21-2013 |
20130055717 | TRANSITIONAL REGION FOR A SECONDARY COMBUSTION CHAMBER OF A GAS TURBINE - A gas turbine is provided having a secondary combustion chamber and a first guide vane row of a low-pressure turbine, the row being arranged directly downstream of the chamber. The radially outer boundary of the secondary combustion chamber is formed by at least one outer wall segment, which is secured on at least one support element arranged radially outwardly. The flow path of the hot gases is bounded radially outwardly, in the region of the guide vane row, by an outer platform which is secured at least indirectly on at least one guide vane support. A substantially radially extending gap-shaped cavity having a width in the range of 1-25 mm in the axial direction in the inlet region is arranged between the wall segment and the outer platform. At least one step element, which reduces the width by at least 10% in at least one step, extending substantially perpendicularly to the direction of flow of the hot gas in the cavity, is arranged in the inlet region. | 03-07-2013 |
20130058788 | LIGHT WEIGHT SHROUD FIN FOR A ROTOR BLADE - A turbine blade is provided and includes a tip end carrying a shroud and at least one fin, which extends radially away from the shroud. The fin includes a first sidewall and a second sidewall, which are spaced apart, arranged parallel to each other, and are connected to the shroud, and a cutting edge, which is connected to the first and second sidewalls. The cutting edge thereby creates a hollow space between the sidewalls, the shroud, and the cutting edge, and further extends radially away from the first and second sidewalls. Also provided is a method of manufacturing the blade by casting the blade as single piece with the hollow fin or by forging the blade; and machining the fin to create the first and second sidewalls and cutting edge thereby opening the hollow space between said sidewalls and the cutting edge. | 03-07-2013 |
20130074513 | METHOD OF ESTIMATING THE MAXIMUM POWER GENERATION CAPACITY AND FOR CONTROLLING A SPECIFIED POWER RESERVE OF A SINGLE CYCLE OR COMBINED CYCLE GAS TURBINE POWER PLANT, AND A POWER GENERATING SYSTEM FOR USE WITH SAID METHOD - An estimation unit can estimate, on a real-time basis, a maximum power generation capacity of a single cycle or combined cycle gas turbine power plant. For example, the actual power output and the maximum power generation capacity can be calculated relying on a mathematical process model. Subsequently, the calculated actual power output can be compared with the measured power output yielding a model-estimation error. Based on the model-estimation error, a correction signal can be deduced, to correct the calculated maximum power generation capacity. A controller can maintain a specified power reserve. The controller can use an estimate of the maximum power generation capacity as a reference, subtract a load offset, and apply the resulting signal as upper limit of the load set-point. | 03-28-2013 |
20130086883 | METHOD FOR OPERATING A GAS TURBINE POWER PLANT WITH FLUE GAS RECIRCULATION - A method and system are disclosed for operating a gas turbine power plant with flue gas recirculation, in which variable compressor inlet guide vanes are controlled as a function of flue gas recirculation ratio and/or as a function of a process parameter which is indicative for the flue gas recirculation. A controller setpoint position of the variable compressor inlet guide vanes can be controlled as a function of a position of a control element for controlling flue gas recirculation flow. | 04-11-2013 |
20130091845 | POWER PLANT AND METHOD FOR RETROFIT - A power plant includes a first gas turbine engine, a second gas turbine engine, a flue gas duct, a CO | 04-18-2013 |
20130091852 | OPERATING METHOD FOR HYDROGEN/NATURAL GAS BLENDS WITHIN A REHEAT GAS TURBINE - A gas turbine is operated using a varying blend of a first fuel, preferably natural gas, and a second fuel that is hydrogen. The hydrogen concentration is varied depending on operating conditions in order to reduce emissions of CO and NOx, and/or to mitigate LBO. The fuel mixture is varied using a controller based on a combination of factors in a modular operation concept to address different issues according to relevant load limitations. A method of operating a gas turbine according to this modular operational concept is also provided. | 04-18-2013 |
20130091951 | LOW PROFILE ULTRASOUND INSPECTION SCANNER - An inspection scanner is described that has a low profile construction designed to fit into tight spaces and inspect structures such as weld joints. Wheel frame assemblies carry a probe holder assembly with an ultrasonic (US) array that emits US beams through the structure and receives reflected sound waves. The probe holder assembly extends and US beam is angled away to inspect in tight locations. The wheel frame assemblies roll on wheels that drive an encoder. Encoder provides the specific locations for the received sound waves with respect to the weld. The locations and received sound waves are used to reconstruct a signal showing imperfections inside of structure. The wheels may be magnetic to hold it to the structure being inspected. A brake system may be employed to hold the inspection scanner at a given location. | 04-18-2013 |
20130098054 | Method for Operating a Gas Turbine - In a method for operating a gas turbine ( | 04-25-2013 |
20130100445 | METHOD FOR DATA ACQUISITION - A method for data acquisition from a combustion process that generates hot gases includes directing a light beam through the hot gases, detecting signals indicative of a scattered beam in a predefined direction by each hot gas volume through which the light beam passes through, processing the detected signals to ascertain the absorption spectrum of the hot gases, processing the absorption spectrum to obtain data indicative of the combustion process. | 04-25-2013 |
20130101391 | Self-Adjusting Device for Controlling the Clearance Between Rotating and Stationary Components of a Thermally Loaded Turbo Machine - A self-adjusting device ( | 04-25-2013 |
20130118179 | POWER PLANT WITH CO2 CAPTURE - A method is provided for operating a combined cycle power plant having at least one gas turbine, a heat recovery steam generator (HSRG), a steam turbine and a CO2 capture system. The method includes recirculating a first partial flow of flue gases from the HRSG. The method also includes capturing CO2 from a second partial flow of flue gases from the HRSG; and operating a supplementary firing to increase the net power output of the plant and to at least partly compensate the power consumption of the CO2 capture system. A combined cycle power plant is also provided. The plant includes at least one gas turbine, at least one heat recovery steam generator, at least one steam turbine at least one CO | 05-16-2013 |
20130121807 | AXIAL COMPRESSOR FOR FLUID-FLOW MACHINES - An axial compressor of a fluid-flow machine includes a flow path disposed between a rotor shaft and a relatively stationary housing wall. The flow path extends in an axial direction of the rotor shaft concentrically with the rotor shaft and the housing wall. A plurality of compressor stages are axially arranged in sequence along the flow path in the axial direction. Each of the compressor stages includes a rotor blades row and a guide vane row disposed after the rotor blades row in the axial direction. The flow path and the compressor stages operating therein are penetrable by a mass flow of a fluid to be compressed in a flow direction during operation of the compressor. A return is configured to return a part of the mass flow from a compressor discharge. | 05-16-2013 |
20130125547 | METHOD FOR OPERATING A COMBUSTION DEVICE DURING TRANSIENT OPERATION - A method and apparatus are disclosed for operating a combustion device during a transient operation. The combustion device is fed with at least a fuel. The transient operation includes a period having a period length (T) during which the fuel is fed in an amount lower that a designated (e.g., critical) amount (Mc). A limit value (L) is defined for the period length (T), and fuel feed is regulated to keep the period length (T) smaller or equal to the limit value (L). | 05-23-2013 |
20130129498 | DIFFUSER, IN PARTICULAR FOR AN AXIAL FLOW MACHINE - A diffuser for an axial flow machine has a transition from a ring channel having a first cross sectional area into an outlet space with a second, larger cross sectional area along a machine axis of the axial flow machine. The transition includes a plurality of steps. | 05-23-2013 |
20130142631 | EXHAUST GAS HOUSING FOR A GAS TURBINE AND GAS TURBINE HAVING AN EXHAUST GAS HOUSING - An exhaust gas housing for a gas turbine, in which an annular gas passage, through which exhaust gas discharges from the gas turbine to the outside, is formed by a concentric inner casing and an outer casing which concentrically encompasses the inner casing at a distance, wherein the inner casing and the outer casing are interconnected by a plurality of radial struts which extend through the gas passage and have in each case a leading edge and a trailing edge with regard to the exhaust gas flowing through the gas passage, and wherein the struts, the outer casing and the inner casing are equipped in each case with a heat-resistant lining towards the gas passage, wherein the lining of the struts is at least partially mechanically decoupled from the lining of the inner casing and/or of the outer casing for reducing thermal stresses on the periphery of the struts. | 06-06-2013 |
20130142639 | APPARATUS AND METHOD FOR THE FORMING OF TURBINE VANE COVER PLATES - A method is provided for reconditioning a turbomachine vane cover plate, by a forming apparatus. The vane having a mounting portion, an airfoil extending radially outward therefrom and a vane head connected to the airfoil. The vane also having a cover plate connected to the vane head, bulged in a direction opposite to the root. In a first analysis step, dimensions of the vane in relation to the cover plate are determined in respect of predefined reference points. If, thereafter, forming of the cover plate seems necessary and possible based on comparison of measurement values from the analysis step with predefined dimension values, the bulged cover plate is formed, at least essentially pressed smooth, by pressing by the forming apparatus in a forming step. After the forming step, the cover plate is re-treated in one or more follow-up steps. An apparatus is also provided for carrying out the method. | 06-06-2013 |
20130147196 | Solar Tower With Integrated Gas Turbine - A solar tower ( | 06-13-2013 |
20130147310 | SLIP RING - A slip ring includes a first element and a second element movable relative to each other, a chamber between the first and second elements, a metal or alloy in the chamber. The metal or alloy is liquid or becomes liquid under operating conditions. A passage is connected to the chamber between the first and second element. An outer chamber is connected to the passages. The outer chamber is filled with a sealing fluid for the chamber. | 06-13-2013 |
20130148395 | CONVERTER - A converter has converting groups with a first stage connected to input lines thereof and a second stage connected to output lines. The first and second stages have positive and negative branches that are connected together. | 06-13-2013 |
20130153258 | MULTIPLE ANGLE BEND FOR HIGH-VOLTAGE LINES - The bend of the invention makes it possible to provide a great number of different direction changes in the configuration of gas-insulated high-voltage lines. | 06-20-2013 |
20130154616 | Rogowski Coil Assembly - A Rogowski coil assembly ( | 06-20-2013 |
20130160424 | Method for Operating a Combined Cycle Power Plant - In a method for operating a combined cycle power plant ( | 06-27-2013 |
20130160968 | ROTARY REGENERATIVE HEAT EXCHANGER - A rotary regenerative heat exchanger has a structure in which a rotor accommodating a heat storage body such as a heat transfer element is rotated inside a housing, the heat storage body is heated by means of a high-temperature heating fluid such as exhaust gas and stores the heat, and low-temperature fluid to be heated such as combustion air is heated by the heat stored in the heat storage body; and a sector plate for dividing the flow passages for the abovementioned two kinds of fluids, namely the heating fluid and the fluid to be heated, flowing through the inside of the rotor is provided at the upper end face of the rotor with a slight gap therebetween, and a static seal is disposed on both sides of the gap between the sector plate and the external structure of the heat exchanger, a suction pipe being provided in the external structure in such a way as to suction dust material such as ash which accumulates or is agitated on the sector plate. | 06-27-2013 |
20130167679 | ACTUATING DEVICE FOR THE ROTATION OF A TURBINE SHAFT TRAIN - An actuating device is provided for the rotation of a turbine shaft train and includes a principal turning gear electrically operated and an auxiliary turning gear hydraulically operated. Also provided is a turbine-generator set for the generation of electricity including the actuating device. | 07-04-2013 |
20130170954 | High Pressure Compressor - A high-pressure compressor ( | 07-04-2013 |
20130174535 | FLUSHING THE EXHAUST GAS RECIRCULATION LINES OF A GAS TURBINE - A method and gas turbine are provided for the reliable purging of an exhaust gas recirculation line of the gas turbine with exhaust gas recirculation without the use of additional blow-off fans. A blow-off flow of the compressor is used for the purging of the exhaust gas recirculation line. The gas turbine can include at least one purging line which connects a compressor blow-off point to the exhaust gas recirculation line. | 07-11-2013 |
20130174565 | METHOD FOR OPERATING A GAS TURBINE - A method for operating a gas turbine, which is optionally operated with a gaseous fuel (A) having a gaseous mass flow ({dot over (m)} | 07-11-2013 |
20130174732 | METHOD FOR FILTRATION OF GAS EFFLUENTS FROM AN INDUSTRIAL INSTALLATION - A method for filtration of harmful gas effluents from an industrial installation including the steps of providing a gas effluent from an industrial installation, the gas effluent including a mixture of gases; filtering the harmful, elements from the gas effluent by membrane separation through a plurality of membranes, the membrane separation being achieved by sifting, sorption and/or diffusion, each membrane being adapted for filtering a specific harmful element; sorting the filtered harmful elements and storing them in separate storage reservoirs, and discharging the processed gas effluent to the atmosphere. | 07-11-2013 |
20130174737 | METHOD FOR FILTRATION OF GAS EFFLUENTS FROM AN INDUSTRIAL INSTALLATION - A membrane for a method for filtration of gas effluents from an industrial installation including a wall having an internal surface and an external surface, the wall having pores of variable dimensions in the radial direction and in the longitudinal direction of the wall. | 07-11-2013 |
20130175004 | GAS TREATMENT SYSTEM WITH A HEAT EXCHANGER FOR REDUCTION OF CHILLER ENERGY CONSUMPTION - A gas treatment system including a heat exchanger having a first side and a second side separated from one another. The first side defines a first inlet and a first outlet and the second side defines a second inlet and a second outlet. A direct contact cooler is in fluid communication with the first outlet, a direct contact heater is in fluid communication with the first inlet and/or a gas polisher is in fluid communication with the first inlet and the first outlet. The gas treatment system includes an ammonia polishing system in fluid communication with the second inlet and/or the second outlet. | 07-11-2013 |
20130177489 | CARBON DIOXIDE REMOVAL SYSTEM WITH A MEMBRANE SEPARATOR SYSTEM FOR AMMONIA RECOVERY | 07-11-2013 |
20130180228 | SUPERCRITICAL HEAT RECOVERY STEAM GENERATOR REHEATER AND SUPERCRITICAL EVAPORATOR ARRANGEMENT - A supercritical heat recovery steam generator includes a duct defining an interior area and having a gas inlet and a gas outlet. The duct is configured to convey gas from the gas inlet to the gas outlet. A portion of the duct between the gas inlet and the gas outlet defines an exhaust gas flow segment of the interior area. A supercritical evaporator is disposed in the interior area and a reheater is disposed in the interior area. The reheater and the supercritical evaporator are disposed in the exhaust gas flow segment, adjacent to each other with respect to the flow of the exhaust gas. | 07-18-2013 |
20130180399 | METHOD FOR FILTRATION OF HARMFUL GAS EFFLUENTS FROM A NUCLEAR POWER PLANT - A method for filtration of harmful gas effluents from a nuclear power plant including the steps of providing a gas effluent from a nuclear power plant, the effluent including a mixture of gases; filtering the harmful, notably radioactive elements from the gas effluent by membrane separation through at least one membrane, the membrane separation being achieved by sifting, sorption and/or diffusion; storing the filtered harmful elements in storage reservoirs, and discharging the processed gas effluent to the atmosphere. | 07-18-2013 |
20130180471 | TUBE ARRANGEMENT IN A ONCE-THROUGH HORIZONTAL EVAPORATOR - Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more inclined evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; where the inclined tubes are inclined at an angle of less than 90 degrees or greater than 90 degrees to a vertical; one or more outlet headers in fluid communication with one or more tube stacks; and an outlet manifold in fluid communication with the one or more outlet headers. | 07-18-2013 |
20130180681 | START-UP SYSTEM FOR A ONCE-THROUGH HORIZONTAL EVAPORATOR - Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more substantially horizontal evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; where one or more tube stacks are used for a start-up of the once-through evaporator; one or more outlet headers in fluid communication with one or more tube stacks; a separator in fluid communication with the one or more outlet headers; a first flow control device in fluid communication with the separator and at least one of the tube stacks used for startup; a second flow control device in fluid communication with a superheater to bypass the separator and at least one of the tube stacks used for startup; and a controller for controlling the actuation of the first and second flow control devices in response to a parameter of the evaporator. | 07-18-2013 |
20130180696 | A METHOD AND APPARATUS FOR CONNECTING SECTIONS OF A ONCE-THROUGH HORIZONTAL EVAPORATOR - Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more substantially horizontal evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; one or more outlet headers in fluid communication with one or more tube stacks; and an outlet manifold in fluid communication with the one or more outlet headers. | 07-18-2013 |
20130181079 | HAMMER OF A BEATER MILL - A hammer for a beater mill is suggested that comprises a hammer body and an impeller head whereby the impeller head ( | 07-18-2013 |
20130186594 | Exchange Tube Support and Securing Assembly for Tube Exchanger - For tube supports in heat exchangers used to exchange heat energy from one fluid to another without mixing them and, more particularly, supports for an exchange tube bundle forming, in a cutting plane, a mesh, a support ( | 07-25-2013 |
20130188440 | GAS MIXING ARRANGEMENT - A gas mixing arrangement for mixing a process gas (MF) of a process plant, which arrangement comprises a gas duct ( | 07-25-2013 |
20130188939 | HEATING SYSTEM FOR A THERMAL ELECTRIC POWER STATION WATER CIRCUIT - A heating system for a thermal electric power station water circuit includes an extraction system for extracting water from a condenser and a first set of heaters including a first water inlet fed with a first fraction of a flow coming from the extraction system, and a input for heating the extracted water. A second set of heaters includes a heater arranged in series with the extracted-water inlet of the first set, and a steam input for heating the extracted water. A condensate cooler includes a first water inlet fed by a condensate outlet of the second set of heaters, a second water inlet fed with a complementary fraction of the extracted-water flow, a first outlet for cooled condensate to be reinjected into the condenser, and a second outlet for heated water so that water leaving the first set of heaters is mixable with water from the second outlet. | 07-25-2013 |
20130189163 | REABSORBER FOR AMMONIA STRIPPER OFFGAS - A method for removal of CO2 from a flue gas stream, comprising the steps of: a) contacting a flue gas stream comprising CO2 with a first absorption liquid comprising NH3 such that the flue gas stream is depleted in CO2; b) contacting the flue gas stream depleted in CO2 of step a) with a second absorption liquid such that NH3 from the flue gas stream is absorbed in said second absorption liquid to form a flue gas stream depleted in CO2 and NH3; c) separating NH3 from the second absorption liquid such that a gas stream comprising NH3 is obtained; d) contacting said gas stream comprising NH3 separated in step c) with a third absorption liquid such that NH3 is absorbed in said third absorption liquid. A system for removal of CO2 from a flue gas stream, the system comprising: a CO2 absorption stage; an NH3 absorption stage; and a reabsorption stage. | 07-25-2013 |
20130189171 | METHOD FOR FLUE GAS SCRUBBING - A method of scrubbing flue gas includes introducing flue gas comprising an acidic gas through an inlet into a tower; spraying an acid-absorptive fluid into the tower such that the acid-absorptive fluid contacts the flue gas; accumulating the acid-absorptive fluid in a recycle tank portion of the tower; and introducing an oxygen-containing gas into the acid-absorptive fluid in the recycle tank portion of the tower, wherein the oxygen-containing gas is introduced through at least one opening of an aerator, each of the at least one openings are positioned to release the oxygen-containing gas at least at a distance greater than or equal to a predetermined radial distance from the flue gas inlet, the predetermined radial distance being equal to at least 10% of a diameter of the recycle tank portion of the tower. | 07-25-2013 |
20130189902 | IMPACT BAFFLE FOR CONTROLLING HIGH-PRESSURE FLUID JETS AND METHODS OF CUTTING WITH FLUID JETS - An impact baffle for a jet cutting tool and a method to operate the baffle in conjunction with the jet cutting tool are described, the baffle with an impact layer and an laterally extended sensing layer to trigger a control signal for interrupting a cutting operation of the jet cutting tool after the impact layer is pierced by the jet cutting tool. | 07-25-2013 |
20130192810 | TUBE AND BAFFLE ARRANGEMENT IN A ONCE-THROUGH HORIZONTAL EVAPORATOR - Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more inclined evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; where the inclined tubes are inclined at an angle of less than 90 degrees or greater than 90 degrees to a vertical; one or more outlet headers in fluid communication with one or more tube stacks; and an outlet manifold in fluid communication with the one or more outlet headers; and a baffle system comprising a plurality of baffles; the baffle system being disposed adjacent to a tube stack so that the baffle system contacts a tube. | 08-01-2013 |
20130194849 | CONVERTER AND ELECTRIC GENERATOR - The converter includes a plurality of input lines and one or more output lines. Each input line is connected to a group of supply circuits and the supply circuits of each group are connected to different output lines. The electric generator comprises a stator and a rotor. The stator has a plurality of windings. Each winding has a plurality of phases. Each phase comprises bars connected in series. The phases have a first connection at one end, a second connection at the other end and a third connection in an intermediate position between the first and the second connection. | 08-01-2013 |
20130199647 | ARRANGEMENT FOR SUPPLYING A REDUCING AGENT IN GASEOUS FORM INTO A FLUE GAS - The invention relates to an arrangement for supplying a reducing agent in gaseous form into a flue gas flowing in a gas duct ( | 08-08-2013 |