Abstract: Disclosed is a wind turbine with a nacelle and a rotor, the rotor including a number of blades and a hub, the nacelle and the hub being connected with each other in an interface region, the wind turbine further including a transport system for transporting hydraulic and/or pneumatic fluid from the nacelle into the hub. The transport system includes a rotary unit as a connection through which the fluid passes and a part of which rotates in operation together with the hub which rotary unit is positioned in the hub at a position distanced from the interface region facing away from the nacelle, the transport system further including a pipe system leading from the interface region into the hub to the rotary unit and being fixed in its position. The disclosure also concerns a method of construction of such wind turbine.

Abstract: A turbine includes an inner casing to which at least a stator vane of a turbine section is mountable, and an outer casing arranged around the inner casing in such a way that an outer cooling channel is formed between the inner casing and the outer casing. The outer cooling channel includes a fluid inlet through which a cooling fluid is injectable from an outer volume of the turbine into the outer cooling channel. The cooling channel includes a fluid outlet such that the cooling fluid is exhausted into an inner volume of the turbine. The fluid inlet is located with respect to the fluid outlet such that the cooling fluid inside the outer cooling channel includes a flow direction which has a component that is orientated in opposite direction with respect to a main flow direction of a working fluid of the turbine.

Abstract: In a method and a device for wireless data transmission between two parts of a medical imaging device that are moving relative to one another, at least: a first communication device has at least one transmission unit to transmit at least one radio-frequency signal, a second communication device has at least one reception unit to receive at last one radio-frequency signal, and the first and second communication devices are arranged at the different parts of the rotating unit. A directional coupler has at least two radio-frequency conductors; with one of the radio-frequency conductors being connected at one end thereof with the first communication device, and the other end thereof is terminated with a real resistor. The second radio-frequency conductor is connected with the second communication device.

Abstract: A turbine arrangement is provided, particularly a gas turbine arrangement, having at least one rotor blade and a turbine disc, the rotor blade having a root portion, the turbine disc having at least one slot in which the root portion of the rotor blade is secured. The slot has a plurality of opposite pairs of slot lobes and a plurality of opposite pairs of slot fillets, and a slot bottom of the slot. The slot bottom is arranged to have a first convex surface section. Furthermore the root portion of the rotor blade has a root bottom with a first concave surface section corresponding to the first convex surface section of the slot bottom. Additionally, the first convex surface section is pierced by an outlet of a cooling duct through the turbine disc.

Abstract: An x-ray source in which monochromatic x-rays can be produced is provided. A method for producing X-rays and to the use of the x-ray source for x-raying bodies is also provided. A metallic film is arranged in a housing as a target which is bombarded with the electron beam. As a result, the metallic film is excited for emitting monochromatic x-rays, the relatively thin-walled target being modified such that the intended use for producing monochromatic x-rays is no longer possible. Therefore, advantageously, the production device can be pivoted for producing the electron beam as well as being able to wind the target on rollers.

Abstract: A method for operating a machine plant having a shaft train, including: a) determining the harmonic frequency of a torsional vibration mode of the shaft train and determining mechanical stresses arising during a vibration period of the torsional vibration mode; b) determining a correlation for each torsional vibration mode between a first stress amplitude, at a position of the shaft train that carries risk of stress damage, and a second stress amplitude, at a measurement location of the shaft train, using stresses determined for the respective torsional vibration mode; c) establishing a maximum first stress amplitude for the position; d) establishing a maximum second stress amplitude, corresponding to the maximum first stress amplitude, for the measurement location; e) measuring the stress of the shaft train while rotating; f) determining a stress amplitude at each harmonic frequency; g) emitting a signal when the stress amplitude reaches the maximum second stress amplitude.

Abstract: A method for separating water from a mixture containing water and at least one volatile acidic substance and/or at least one volatile basic substance may include converting the at least one volatile acidic substance into the corresponding non-volatile basic substance by an acid-base reaction and/or converting the at least one basic substance into the corresponding non-volatile acidic substance, and separating the water from the at least one non-volatile acidic substance and/or the at least one non-volatile basic substance.

Abstract: A high-voltage combined electrical apparatus includes a transformer, at least one circuit breaker, at least one oil/gas separation module and at least one operating mechanism. In an embodiment, the circuit breaker includes a ceramic insulator, an upper outgoing line seat, a lower outgoing line seat, and a disconnecting mechanism connected there between. The oil/gas separation module includes a first end electrically connected to a transformer coil of the transformer, and a second end electrically connected to the lower outgoing line seat. The operating mechanism is connected to and controls the disconnecting mechanism. The high-voltage combined electrical apparatus of an embodiment integrates a circuit breaker and a transformer, omitting the conventional transformer oil/gas sleeve and overhead line, so that the structure thereof is simpler, the cost is lower, the area of ground occupied by the equipment is reduced, and the occurrence of short circuits associated with overhead lines is avoided.

Abstract: A fault type determination method and device of a terminal unit for automation used in a power distribution network are disclosed. The method includes: for each line of incoming lines and outgoing lines of a distribution device, recording the number of faults occurring on the line; after a fault occurs, determining, according to the current and/or voltage on each line, whether automated reclosing is executed, and recording the number of executed automated reclosings; in a fault type determination period, for each line, if the number of faults occurring on the line is greater than the maximum number of automated reclosings allowed by the transformer substation side, or the fault is a repeat fault, then identifying the fault on the line as a permanent fault.

Abstract: A generator for a power plant and a method for cooling the generator, where the generator includes a stator and a rotor, the stator carrying conductors. The conductors for a winding overhang at least at one end of the stator and the generator has a fan for cooling the winding overhang. The fan produces a cooling air flow directed onto the winding overhang and has an axial component and a radial component.

Abstract: An energy management system is provided for controlling a controlled device connected to an energy supply network, which controlled device includes multiple energy-converting elements, wherein the sum of maximum energy conversions of the energy-converting elements is at least 3 kW. The energy management system may include modules that each provide functions used in the control of the controlled device, wherein planning function(s) for planning a future energy conversion of the energy-converting element(s), sensing function(s) for sensing parameter(s) that concern an instantaneous energy conversion of the energy-converting element(s), and control function(s) for specifying control parameter(s) that influence an energy conversion of the energy-converting element(s) are provided as functions.

Abstract: An arrangement includes a gas insulated switchgear and a RC voltage divider. The gas insulated switchgear includes a switchgear compartment and a voltage divider compartment. The RC voltage divider and the gas insulated switchgear together at least partially form a hermetically sealed common gas compartment. A method for assembling the arrangement is also provided.

Abstract: The present disclosure relates to power systems. The teachings thereof may be embodied in power electronic systems. For example, a power electronic system for operating a load may comprise: a number of power modules connected to the load, each comprising at least one switching element and a local actuator; a superordinate controller for actuating the power modules; a device bus connected to the superordinate controller via which the control signals for actuating the power modules are transmitted; the superordinate controller transmitting the control signals in respective messages at predefined intervals of time; wherein all power modules scan a first communication edge of a received message and process it as a common time base of the system.

Abstract: A burner having a pre-mixing passage delimited radially outwardly by a wall, a burner lance and a plurality of fuel injectors arranged in the pre-mixing passage, the injectors extending from the burner lance in the direction of the wall and having fuel nozzles. The fuel supply arrangement has at least one fluidic oscillator that has an interaction chamber, an inlet to the interaction chamber connected to a fuel channel of the fuel supply arrangement, a first outlet channel of the interaction chamber extending at least to a first fuel nozzle and a second outlet channel extending at least to a second fuel nozzle, the fluidic oscillator has one feedback line for each outlet channel, one end of the feedback line terminating into the respective outlet channel downstream of the at least one fuel nozzle, and the other end thereof terminating into an inlet region of the interaction chamber.

Abstract: A method for operating a power management device for controlling an operating device connected to a power supply network, in which the maximum demanded and/or provided output of the controlled operating device is at least 3 kW, is disclosed. An information data set is received which describes coupling information or a temporal progression of coupling information from a server device associated with a network provider of a power supply network, the coupling information describing a relationship between a device load of the operating device and a target variable to be optimized. A load profile is determined which describes a predicted temporal progression of the device load by optimizing the load profile with respect to the target variable. The load profile is provided to the server device, and the power management device may control the operating device according to a default value which is predetermined based on the load profile.

Abstract: A compact burner for the pressurized gasification of pulverized fuel dust for producing synthesis gas, wherein a plurality of concentric media channels transition into a conical burner tip. The burner tip provides a reduced contact surface on the reaction chamber side. The nozzle components of the burner tip are produced by selective laser melting, which permits a design for cooling by supplied media, such as fuel gas, flushing gas, or oxidation. A sliding guide having an intermediate seal is arranged between the nozzle components of two media channels to equalize temperature-driven linear extensions. The compact burner makes the expense for liquid cooling unnecessary.

Abstract: A computer system includes a control device for controlling an industrial technical process, a logic unit and a memory device. The control device controls the industrial technical process in an operating cycle. It temporarily stores process data in the memory device when controlling the industrial technical process in an operating cycle. The logic unit accepts a request for the process data from an external computer outside of the computer system via an interface to a computer network. The logic unit transfers the process data stored in the memory device to the external computer in accordance with the request in an event of the request fulfilling an access condition. Otherwise, the logic unit preprocesses the process data stored in the memory device, so that the preprocessed process data have a reduced information content by a comparison with the stored process data.

Abstract: A mobile data storage device is configured in the manner of a data storage card, or a data storage stick. The mobile data storage device can include at least one electrical coil (7), and energy storage (6), a data storage (1), at least one interface unit (3), and at least one permanent magnet (8). The at least one interface unit (3) is configured for the output or the receiving of data that is stored, or that can be stored, in the data storage (1). The energy storage (6) can be inductively charged by a magnetic alternating field, which can be generated by displacing the at least one permanent magnet (8) in a region of the electrical coil (7). At least one of the at least one interface unit (3) is electrically coupled to the energy storage for the energy supply thereof.

Abstract: A method for detecting a rotor blade pitch angle adjustment fault of a rotor blade of a wind turbine is provided, the method includes measuring a rotor blade pitch angle speed; predicting, based on an actual rotor speed, a rotor blade pitch angle speed; indicating a fault, if a first criterion is satisfied, wherein the first criterion is satisfied, if deviation between the measured rotor blade pitch angle speed and the predicted rotor blade pitch angle speed exceeds a speed threshold.

Abstract: A method and a read/write device for selecting at least one wireless data medium from a number of detected wireless data media that are RFID transponders, wherein the data media are registered in a detection area of a read/write device via a plurality of detection cycles, at least one receive parameter is recorded for each of the detected data media, and at least one data medium of the data media is selected based on an evaluation of the recorded receive parameters, a plurality of detection cycles are performed at different antenna polarizations, at least one receive parameter is recorded at each of utilized antenna polarizations for the detected data media, and at least one of the detected data media is selected in each case based on a statistical evaluation of the receive parameters recorded in the different antenna polarizations.