GE Vernova Technology

Devices, systems, and methods for controlling active energy provided by an energy island to an synchronous alternating current (AC) grid via a high-voltage direct current (HVDC) transmission circuit may include an HVDC transmission circuit connecting an energy island, including wind turbines, solar panels, and energy storage systems, to a synchronous AC grid; and a fast energy controller (FEC), remote from the HVDC transmission circuit, configured to: receive, from the HVDC transmission circuit, an indication of an electrical energy demanded from the synchronous AC grid; determine a difference between a power demanded by the synchronous AC grid and the electrical energy; and based on a comparison of the difference to a deadband range with an upper threshold and a lower threshold, cause the energy island to adjust an amount of active energy provided by the energy storage systems to the synchronous AC grid.

A system may include a gas capture system (20) comprising a separation material, wherein the gas capture system (20) is configured to operate a regeneration process during a part load operation and/or a shutdown operation to desorb undesirable gas from the separation material to regenerate the separation material for an absorption process, a heat recovery steam generator (HSRG) (16) configured to receive exhaust gas (62) and generate steam (128), and a backup line (160) fluidly coupling the gas capture system (20) to the HRSG (16), wherein the backup line (160) is configured to provide the steam (128) from the HRSG (16) to the gas capture system (20) for the regeneration process during the part load operation and/or the shutdown operation.

A micromixer (120) for combusting a fuel-air mixture in a combustion chamber (131) of a combustor (106) is provided. The micromixer includes a fuel plenum (124), an air plenum (126), and a plurality of mixing tubes (130). Certain mixing tube(s) (150) include a body portion (160) made of a first material and including a first end and a second end, the first end in fluid communication with the fuel and air plenums. A cladded tip portion (170) made of a second, different material is coupled to the second end of the body portion. The cladded tip portion includes a combustion end (172) configured to direct the fuel-air mixture into the combustion chamber. A tapered inner surface (180) extends from the combustion end of the cladded tip portion to a location (182) on the body portion. The body portion has a cylindrical inner diameter (ID1) from the location to the first end of the body portion.

The invention refers to an electric arc blast nozzle (10) having an interior housing (12) extending along a longitudinal axis (X) and enclosing an interior space (13). The interior housing (12) is particularly configured to locate electrical contacts (24, 25) of a circuit breaker (11) therein. When used in a circuit breaker, the electric arc blast nozzle (10) can be moved together with one of the electrical contacts in longitudinal direction (L) relative to the other electrical contact. According to the invention, the interior housing (12) of the electric arc blast nozzle (10) is intimately covered by at least one outer layer (32) comprising a reinforcement layer (33). In doing so, gas-filled gaps and cavities are avoided between the at least one outer layer (32) and the interior housing (12), which reduces the risk of partial discharge.

An inspection system (126) for inspecting cooling holes (120) in a component (90) and a related method are provided. The inspection system includes at least one inspection element (128). Each inspection element includes a probe element (132) configured to be inserted into a respective cooling hole (120) of the plurality of cooling holes. Each inspection element includes a three-axes force/torque transducer (140) operatively coupled to each probe element. The three-axes force/torque transducer measures three-axes forces applied to the probe element and three-axes torques applied to the probe element during insertion of the probe element into the respective cooling hole. A controller (150) is operatively coupled to each inspection element and determines whether the respective cooling hole into which a respective inspection element is inserted is at least partially blocked based on at least one of the three-axes forces and the three-axes torques measured by the three-axes force/torque transducer of the respective inspection element.

A system includes at least one component of a turbine section (22). The at least one component includes a fuel port (56) formed into a wall (111) of the at least one component, which is configured to inject fuel (52) into a chamber (94) of the turbine section. The at least one component also includes an inert gas port (57) formed into the wall upstream of the fuel port. The inert gas port is configured to inject an inert gas (54) to flow at least partially around the injected fuel in a buffer region (228) downstream from the fuel port. The presence of the inert gas in the buffer region may mitigate an ignition of the fuel near the surface of the wall downstream of the fuel port (e.g., flame anchoring) and/or help to lift the flame from the ignited fuel into the hot gas flow path.

A HGP segment, such as a nozzle or shroud, for a GT system includes a body. A seal slot is defined in the face of side edge(s) of the body. Each seal slot has radial inner and outer walls, an inner sidewall between the radially inner and outer walls, and receives part of a sealing member extending between the seal slots of adjacent segments. Groove(s) are defined in one or both of the radial inner and outer walls of the seal slot and extend transverse to the slot. The groove(s) extend between the inner sidewall of the respective seal slot and the face of the respective side edge. A cooling passage is defined in the body and has an outlet defined in the inner sidewall within the at least one groove of the slot and an inlet in fluid communication with an inner coolant source defined in the body.

A printed circuit heat exchanger (PCHE) and methods for fabricating a PCHE for use in facilitating heat transfer includes providing a plurality of plates that each include a plurality of densely spaced channels configured to channel fluid through the PCHE. The method also includes applying a protective coating to pre-defined regions identified on at least one of the plurality of plates, wherein the protective coating facilitates extending a useful life of the PCHE, and coupling at least two of the plurality of plates together to create the PCHE.

An injector system (130) and method for masking a plurality of openings (134) in a component are provided. The injector system includes at least one injector body (132) configured to be positioned within a respective opening. Each injector body includes a radiation transmitting channel (150) and a radiation-curable material passage (160) defined in the injector body adjacent to the radiation transmitting channel. The radiation transmitting channel (150) includes a first terminal end (152) and a second opposing end (154) configured to optically communicate with a source of radiation (138), and the radiation-curable material passage (160) includes a first terminal end (162), and a second opposing end (164) configured to fluidly communicate with a source of radiation-curable material (136). A radiation block (170) is between the channel and the passage to prevent radiation from the channel from entering the passage. The injector system simultaneously injects and cures radiation-curable masking material.

A tool (200) for thrust clearance testing a turbine rotor includes at least one turbine rotor thrust engagement element (220). Each engagement element includes an adjustable clamp (230) including a first engagement member (232), a second engagement member (234), and a space adjuster (236) configured to adjust a distance (D) between the first and second engagement members. The first and second engagement members are configured to engage opposing axial ends of coupling flange(s) (202, 204) of a load coupling (120) extending from at least the turbine rotor (110). The tool also includes a dual-action linear actuator (260) coupled to the adjustable clamp and having an actuator end (262), and a fixture (270) configured to axially fix the actuator end of the actuator to a stationary structure (272) adjacent the turbine rotor. A controller (300) is configured to activate the actuator of each engagement element to move the turbine rotor between a first axial direction (Al) and a second axial direction (A2) opposite to the first axial direction.