Abstract: A method of operating a combustion system (16) for a gas turbine (10), the combustor system (16) comprises a main fuel supply (72, 73), a pilot fuel supply (74), a combustion chamber (38). The method comprises the steps supplying a first fuel flow through the main fuel supply (72) and the pilot fuel supply (74), monitoring a composition of the first fuel, monitoring combustion instability, reducing the first fuel flow through the pilot fuel supply (74) to zero when the first fuel composition has a) a hydrogen content ?5% by volume and/or b) a high-HC content ?5% by volume and the combustion instability <a predetermined value.

Abstract: A sensor control assembly and method providing a secured sensor data and an optimized handling of the sensor including a sensor, a first processing unit adapted to provide a cryptographic checksum of sensor data, a distributed database, a second processing unit adapted to verify the sensor data, and a third processing unit adapted to determine the demand for calibration. A manufacturing device contains at least a part of the sensor control assembly.

Abstract: A dry mate cable connection includes a data cable. The data cable includes a plurality of electrical conductors and at least one electrically insulating outer layer surrounding each data conductor, whereby the data conductors are electrically insulated from one another. The cable includes a termination end. The outer layer of each conductor is physically in contact with an outer layer of an adjacent conductor, except at the termination end. The plurality of electrical conductors at the termination end are physically separated from one another by a single electrically insulating overmoulded cable termination housing. The housing is in contact with at least part of the electrically insulating layers of each of the electrical conductors.

Abstract: An ROV, diver, or stab, wet mateable connector plug front end housing includes a housing front section; a locator mount section; and a seal section axially in series with one another. The housing front section includes a plug coarse alignment feature on an outer surface of the housing front section, adjacent to a front surface of the housing front section and radially outward of a central axis of the housing. There is a circumferential groove on the outer surface of the housing front section, axially displaced from and rearward of the coarse alignment feature, the groove being adapted to receive a latch of a wet-mateable connector receptacle front end housing. The plug coarse alignment feature includes a bullnose feature. A plug fine alignment feature is formed in the outer surface of the housing front section, aligned with and located radially outward of the central axis of the housing.

Abstract: A method for the non-destructive detecting of ageing symptoms of a component having regularly recurring structures, includes the following steps: a) scanning the component in the region of the recurring structures in a plurality of scanning planes which extend parallel to one another to create at least one scanning image set having a plurality of two-dimensional scanning images, wherein the scanning images show a plurality of inhomogeneities; b) automatically identifying those inhomogeneities that form recurring patterns, and those inhomogeneities that do not follow a recurring pattern, using a suitable algorithm; and c) detecting ageing symptoms exclusively on the basis of those inhomogeneities which are identified in step b) and do not follow a recurring pattern.

Abstract: Various embodiments include an electrolysis cell comprising: a cathode space housing a cathode; a first ion exchange membrane including an anion exchanger and adjoining the cathode space; an anode space housing an anode; a second ion exchange membrane including a cation exchanger and adjoining the anode space; and a salt bridge space disposed between the first ion exchange membrane and the second ion exchange membrane. The cathode comprises: a gas diffusion electrode having a porous bound catalyst structure of a particulate catalyst on a support; a coating of a particulate catalyst on the first and/or second ion exchange membrane; and a porous conductive support impregnated with a catalyst.

Abstract: A pressure release device includes a movable pressure release wall that can be moved relative to a pressure release opening. The pressure release wall, by virtue of its position relative to the pressure release opening, controls the passability of the opening. A detent stop is arranged in a path of movement of the pressure release wall.

Abstract: A method for generating a photogrammetric corridor map from a set of input images by recovering a respective pose of each image, wherein a pose includes a position and an orientation information of the underlying camera, including steps of: a) receiving a set of input images, b) defining a working set, c) initializing an image cluster, d) further growing the image cluster: d1) selecting one image from the working set that features overlap with at least one image already in the cluster, e) continuing with step b) if there remain images in the working set; if not, f) generating and providing as output the corridor map using the recovered camera poses.

Abstract: A watercraft includes at least one high-temperature superconducting coil and a cooling system for cooling the high-temperature superconducting coil to a cryogenic operating temperature, wherein the cooling system has a first cryostat tank, which surrounds the high-temperature superconducting coil and is designed to hold a liquid phase of a cryogenic coolant; wherein the watercraft also has a load, which is designed to convert an operating medium in the form of a fuel and/or in the form of a material promoting combustion; wherein at least one first material component of the operating medium is formed by the cryogenic coolant; and wherein the first cryostat tank is designed to hold a major part of the required total amount of the first material component of the operating medium for the operation of the load. A method operates a watercraft of this type.

Abstract: A nickel-based alloy, having (in wt. %): carbon(C): 0.09%-0.13%; chromium(Cr): 19.0%-21.5%; cobalt(Co): 18.0%-20.0%; molybdenum(Mo): 0.5%-1.5%; tungsten(W): 2.0%-3.0%; titanium(Ti): 2.0%-3.0%; aluminum(Al): 2.2%-3.0%; boron(B): 0.008%-0.012%; zirconium(Zr): 0.0025%-0.01%; tantalum(Ta): 2.0%-4.0%; niobium(Nb): 1.2%-2.0%; optionally silicon(Si): up to 0.02%; manganese(Mn): up to 0.01%; yttrium(Y): 0.0025%-0.01%; yttrium oxide(Y2O3): 0.75%-1.25%; vanadium(V): up to 0.01%; hafnium(Hf): up to 0.01%, silver(Ag): up to 0.005%; lead(Pb): up to 0.0003%; iron(Fe): up to 0.02%; copper(Cu): up to 0.01%; selenium(Se): up to 0.0003%; oxygen(O): up to 0.015%; phosphorus(P): up to 0.005%; sulfur(S): up to 0.001%; gallium(Ga): up to 0.001%; bismuth(Bi): up to 0.0001%; nitrogen(N): up to 0.008%; magnesium(Mg): up to 0.007%; tellurium(Te): up to 0.00005%; thallium(Tl): up to 0.0005%; calcium(Ca): up to 0.0001%; potassium(K): up to 0.0001%, residual impurities: up to 0.1%.

Abstract: A rotor of a gas turbine having two adjacent rotor discs, on each of which moving blades are fastened, an annular rotor component being arranged between the rotor discs and having at its opposite ends circumferential annular grooves, in each of which a circumferential fastening projection on the respective rotor disc engages. When the rotor is stationary a first outer flank of the first annular groove rests under pressure against a first outer flank of the first fastening projection and there is play between a first inner flank of the first annular groove and a first inner flank of the first fastening projection.

Abstract: A guide vane in a gas turbine engine includes an inner platform, an outer platform, and an airfoil extending therebetween. Side surfaces of the inner platform and outer platform between an adjacent guide vane define a first seal slot, a second seal slot, and a third seal slot forming a closed loop having three corners. At least one of the corners is rounded. The guide vane includes tubulator ribs and pin fins disposed in an airfoil interior. The pin fins are disposed in a region of the trailing edge. The inner platform defines film cooling holes disposed at an outer surface facing the airfoil. The film cooling holes are arranged in a fan shape. An inner surface of the inner platform and an outer surface of the outer platform include impingement cooling ribs. The inner platform protrudes further towards upstream in a flow direction than the outer platform.

Abstract: A high-voltage bushing has an insulator, which contains an insulating gas and an insulating solid, and an inner conductor which is led through the insulator. A mounting flange is employed for the mounting of the high-voltage bushing on a wall. A sensor, which is arranged on the mounting flange and is configured for the detection of at least one reaction product of the insulating gas and/or of the insulating solid. A corresponding method monitors an operating state of the high-voltage bushing.

Abstract: A valve arrangement for a steam turbine, wherein, for regulating a fluid flow, the valve arrangement has a hollow cylindrical valve body, which cooperates with a corresponding valve seat. The valve body has a linear contact edge and has multiple compensating bores for pressure equalization. The valve body is moved electromechanically via a coupling element into a stationary element. In addition, the valve arrangement has a housing having a curvature, which extends in the direction of the valve body.

Abstract: A component of a subsea connector includes a conductor, an electrically insulating layer and an at least partially electrically conductive layer. A method of assembling the component includes providing the insulating layer radially outward of the conductor; and applying the at least partially conductive layer onto the insulating layer by casting, moulding, compression fitting, or additive manufacturing techniques.

Abstract: An interrupter unit includes a vacuum switch tube and an insulating housing. The insulating housing has an inner surface. The vacuum switch tube is bordered at least partially by an electrically insulating structure material having an outer surface. The insulating housing at least partially surrounds the vacuum switch tube. In operation, inner surface of the insulating housing and outer surface of the vacuum switch tube are separated by an adhesion layer. The inner surface and the outer surface are provided at least partially with an electrically conductive layer such that, in a boundary region between vacuum switch tube and insulating housing, the following layer sequence is directed radially outwards from a switch axis: structure material of vacuum switch tube; outer surface of structure material; conductive layer on outer surface of structure material; adhesion layer; conductive layer on insulating housing; inner surface of insulating housing; volume material of insulating housing.

Abstract: A monitoring arrangement for electrical equipment includes a first sensor for sensing a surface creeping current on a creeping path-lengthening electrically insulating housing of the equipment. A monitoring system includes electrical equipment, the monitoring arrangement, a communication device for transmitting data to a central server device, and a central server device configured to receive and evaluate the data.

Abstract: A heatshield for a gas turbine engine includes a main body having a leading edge, a trailing edge, lateral edges, a first surface and a second surface, the first surface being exposed to a hot working gas in use passing through the gas turbine engine. The main body having an array of cooling channels for conveying a coolant flow, where each cooling channel of the array of cooling channels having a surface. At least one cooling channel of the array of cooling channels includes at least one flow disturbing feature extending from the surface and into the cooling channel.

Abstract: A method for powder-bed-based additive manufacturing of a component, includes setting irradiation vectors for a layer to be irradiated for the component, wherein, irradiation vectors are irradiated below a length of 1 mm in a pulsed irradiation operation; and a pulse frequency below 3 kHz and a scan speed below 250 mm/a are selected. A correspondingly manufactured component is produced.

Abstract: A method for providing CAM manufacturing instructions for the powder-bed-based additive manufacturing of a component wherein a geometry of the component, with a solid material region, a transition region, and a porous component region, is defined on the basis of CAD data. Irradiation parameters for the manufacturing of the component, including an irradiation power, a scanning speed, a scanning pitch, and a layer thickness, are varied within the transition region in such a way as to form a porosity gradient of the structure of the component between the solid material region of the component and the porous component region.