Abrégé

The invention relates to a method for operating an electrolysis plant comprising an electrolyser for generating hydrogen (H2) and oxygen (O2) as product gases, wherein water is fed as educt water to the electrolyser and is split into hydrogen (H2) and oxygen (O2) at an ion-permeable membrane. Prior to splitting, the educt water is brought into a thermodynamic state close to the boiling point of the water in terms of the pressure (pe) and temperature (Te) and is fed in this state to the membrane. Educt water is brought to the boil at the membrane and converted into the gas phase, wherein educt water in the gas phase is split at the membrane. The invention further relates to an electrolysis plant having an electrolyser for generating hydrogen (H2) and oxygen (O2) as product gases.

Classes IPC  ?

• C25B 1/042 - Hydrogène ou oxygène par électrolyse de l'eau par électrolyse de la vapeur
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 15/021 - Commande ou régulation des opérations de chauffage ou de refroidissement

Abrégé

The invention relates to a method for operating an electrolysis plant (1, 20), comprising an electrolyser (11) for generating hydrogen (H2) and oxygen (O2) as product gases, with water being supplied as starting material and being split at a protonpermeable membrane into hydrogen (H2) and oxygen (O2), a product gas stream (5) being formed in a phase mixture comprising water (H2O) and a relevant product gas, and a product gas stream being supplied to a gas separator (3, 13) arranged downstream of the electrolyser (11), characterised in that the fluoride release of the membrane is determined on the basis of the operating time, the temporal progression of the fluoride concentration being ascertained, with a measure for the operation-induced degradation of the proton-permeable membrane being ascertained as the result of a release of fluoride. The invention furthermore relates to a corresponding electrolysis plant (1, 20) and to a measuring device for carrying out the method.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
• C25B 15/023 - Mesure, analyse ou test pendant la production électrolytique
• C25B 15/031 - Concentration pH
• C25B 15/033 - Conductivité

Abrégé

The invention relates to an electrolysis system (21) comprising: at least one electrolysis cell (01); and a cathode-side water circuit (07) having a hydrogen separator (05); and an anode-side water circuit (06) having an oxygen separator (04); and an equalization connection (22) which leads, coming from a cathode-side water connection (15), to the anode-side water circuit (06) via a pump (13) and an ion exchanger (12) via a node point (23) and an operating line (24); and an idle line (25) which (25) branches off upstream of the operating line (24) and leads to the cathode-side gas connection (17).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to a distribution structure for an electrochemical cell for supplying a cell element with a fluid medium (M). The distribution structure comprises a fluid inlet, which branches into a number of N distribution stages, wherein a distribution channel is divided into two channels of smaller cross section in the main flow direction (S) from one stage (K) to the next stage (K+1), and wherein the distribution channels of the Nth stage of the distribution structure are configured so that the fluid medium (M) is distributed evenly over a width of the cell element. The invention further relates to an electrolyser or a corresponding component lighting system comprising the distribution structure.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/60 - Éléments de structure des cellules
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

A bipolar plate that is configured for electrolysis has a lower metal sheet and an upper metal sheet. The lower and upper metal sheets are interlinked and the materials of the metal sheets are distinctly different from each other, meaning that one of them is iron-based or nickel-based and the other is not, or an alloying element is present to a greater or lesser degree, or a proportion of an alloying element differs between the materials of the two metal sheets.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 11/036 - Électrodes bipolaires
• C25B 11/046 - Alliages

Abrégé

The invention concerns a half-cell (H1) of an electrolytic cell (EZ) for an electrolyzer (EY). The half-cell (H1) has an anode part-plate (AP) with perpendicular elevations (NP). Arranged on an upper side of the perpendicular elevations (NP) of the anode part-plate (AP) is an anode-transporting layer (AT). The half-cell (H1) has a membrane (MB), which is arranged on a side of the anode-transporting layer (AT) that is facing away from the elevations (NP) and which is permeable to specified charge carriers. In this case, the anode-transporting layer (AT) has a graduated pore structure, in which a respective diameter of the pores in the anode-transporting layer (AT) decreases in a direction perpendicularly towards the membrane (MB).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/65 - Dispositifs pour l'alimentation en courantConnexions d'électrodesConnexions électriques intercellulaires
• C25B 9/75 - Assemblages comprenant plusieurs cellules du type filtre-presse avec une électrode bipolaire
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 11/04 - ÉlectrodesLeur fabrication non prévue ailleurs caractérisées par le matériau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to a method for producing a membrane electrode arrangement for an electrolysis cell for the electrochemical separation of water into hydrogen and oxygen, including the steps of: providing a substrate having a first surface and a second surface, which faces away from the first surface, coating at least one of the surfaces of the substrate with a catalyst material, immersing the coated substrate in an extraction agent to at least partially extract a solvent from the catalyst material, and drying the coated substrate at a temperature that is lower than 60°C.

Classes IPC  ?

• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 11/032 - Électrodes à diffusion de gaz

Abrégé

The invention relates to a membrane electrode arrangement (1) comprising a cation exchange membrane (3) arranged in a cell (2) between an anode (5) and a cathode (4), which has a respective catalyst layer on the anode side and cathode side, wherein the cell (2) has a low molecular buffer (7) with at least one alkali-metal cation. The cationic concentration of the buffer solution (7) is <1mmol. The invention also relates to a use of a low molecular buffer (7) with at least one alkali-metal cation for water electrolysis, and a device comprising the membrane electrode arrangement (1).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to a device (10) for supplying a DC load (11) with a transformer arrangement (12) and a converter (16). The invention is characterized in that the transformer arrangement is connected on the mains side by means of the converter to a supply network and on the load side to the DC load to be supplied, and wherein a direct current is generated on the load side by means of a regulation of the converter. The invention further relates to a method for supplying a DC load by means of the device according to the invention.

Classes IPC  ?

• H02M 5/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des transformateurs pour la transformation de l'amplitude de la tension ou du courant seulement
• H02M 5/293 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 5/297 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande pour transformation de la fréquence
• H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension

Abrégé

The invention relates to an electrode fibre (3) having a stainless steel fibre (1) which comprises a stainless steel in which the fraction of Ni is at least 1% by mass, more particularly at least 8% by mass, and having an adhesive coating (2) applied directly on the stainless steel fibre (1) and enveloping the stainless steel fibre (1), in which the fraction of Ni is at least 80% by mass, and having a catalytic layer (3) applied directly on the adhesive coating (2) and enveloping the adhesive coating (2) and also comprising a first alloy which contains Ni and Fe with a cumulative fraction of Ni and Fe of at least 90% by mass in the catalytic layer (3), or comprising a second alloy which contains Ni and Co with a cumulative fraction of Ni and Co of at least 90% by mass in the catalytic layer (3), or comprising a third alloy which contains Ni, Co and Fe with a cumulative fraction of Ni, Co and Fe of at least 90% by mass in the catalytic layer (3).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 11/052 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques
• C25B 11/056 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau du substrat ou du support constitué d'une matière textile ou non tissée
• C25B 11/061 - Métal ou alliage
• C25B 11/089 - Alliages
• C25D 3/56 - Dépôt électrochimiqueBains utilisés à partir de solutions d'alliages

Abrégé

The invention relates to an electrolyser for generating hydrogen (H2) and oxygen (02) as product gases, said electrolyser including an electrolysis module and a gas separator which is designed for phase separation of the product gas from water, the electrolysis module being connected to the gas separator via a product flow line for the product gas, and a return line, which connects the gas separator to the electrolysis module, being provided for the separated water. The gas separator is designed and positioned at a height difference (Ah) above the electrolysis module in such a way that, in the event of a standstill, the electrolysis module can be automatically flooded with water, driven solely by the height difference (Ah). The invention also relates to a method for operating an electrolyser including an electrolysis module, wherein, in a standstill mode, the electrolysis current is stopped, and a safety deactivation is initiated.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/70 - Assemblages comprenant plusieurs cellules
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to an electrolyser (1) for generating hydrogen (H 2 ) and oxygen (O 2 ) as product gases, said electrolyser comprising an electrolysis module (3) and a gas separator (5) which is designed for phase separation of the product gas from water, the electrolysis module (3) being connected to the gas separator (5) via a product flow line (7) for the product gas, and a return line (9), which fluidically connects the gas separator (5) to the electrolysis module (3), being provided for the separated water, a circulation pump (13) being connected in the return line (9). The electrolyser (1) has a bypass line (15) comprising a valve (17) which connects the gas separator (5) to the electrolysis module (3), at least part of the return line (9) being fluidically bypassed by the bypass line (15) so that, in the event of a standstill, water can be supplied from the gas separator (5) to the electrolysis module (3) via the bypass line (15). The invention also relates to a method for operating an electrolyser (1) comprising an electrolysis module (3), wherein, in a standstill mode, the electrolysis current is stopped and a safety deactivation is initiated. This involves water being automatically driven into the electrolysis module (3) solely due to a hydrostatic differential pressure (Ap) associated with a predefined height difference (Ah), and flooding the electrolysis module (3) with water.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to an intermediate gas store for an electrolysis system, more particularly for low-pressure proton exchange electrolysis, including a storage vessel which has a storage space into which a channel of a gas removal unit leads, via which channel gas produced during the electrolysis can be introduced into the storage space. The storage vessel has a pressure control device, by means of which a pressure setpoint value can be applied to the gas introduced into the storage space. The pressure control device includes a diaphragm and an actuator, the actuator acting on the membrane in such a way that the pressure setpoint value can be established. The invention also relates to an electrolysis system having an intermediate gas store and to a method for operating an electrolysis system.

Classes IPC  ?

• F17C 1/00 - Récipients sous pression, p. ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables
• F17C 3/00 - Récipients non sous pression

Abrégé

A system network includes at least two electrolysis systems, a power supply source, and a central supply line. The central supply line is connected to the secondary side of a transformer. The primary side of the transformer can be fed with energy from the power supply source. The transformer is designed for an operating frequency above the mains frequency of the public power grid, and so a higher-frequency AC grid is formed, to which the electrolysis systems are connected via the central supply line.

Classes IPC  ?

• H02J 3/34 - Dispositions pour le transfert de puissance électrique entre réseaux de fréquences très différentes
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

A method for operating an electrolysis cell, to which an electrical electrolysis current is supplied in normal operation, in order to carry out an electrolysis of a substance arranged in a reaction chamber of the electrolysis cell is provided. The method includes a direct current being supplied as individual protective current to the electrolysis cell in an operating state different from normal operation. The invention addresses the problem of reducing the outlay for an improved protective function to avoid fuel cell operation of a particular electrolysis cell. According to the invention a clocked direct current is supplied to the electrolysis cell as the individual protective current.

Classes IPC  ?

• H02J 1/10 - Fonctionnement de sources à courant continu en parallèle

Abrégé

The invention relates to an electrolyzer having a plurality of cell elements and having a supply pipe and a discharge pipe for supplying and discharging an electrolyte to and away from the cell elements, wherein, at least in sections, the supply pipe and/or the discharge pipe have at least two sub-lines designed to be galvanically isolated from one another, wherein the sub-lines are designed as eccentrically disposed sub-lines.

Classes IPC  ?

• C25B 9/73 - Assemblages comprenant plusieurs cellules du type filtre-presse
• C25B 15/06 - Détection ou prévention des courts-circuits dans les cellules
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to a method (100) for recycling polymer membranes comprising metal-containing catalyst material. The method comprises the following steps: S2: adding water without adding organic solvents to a polymer membrane comprising a metal-containing catalyst material to form a polymer membrane/water mixture, S3: simultaneously increasing the pressure and the temperature of the polymer membrane/water mixture to a pressure between 20 bar and 40 bar and a temperature between 200 °C and 250 °C, a liquid phase and a solid phase being formed, and S5: separating the liquid phase and the solid phase.

Classes IPC  ?

• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C22B 11/00 - Obtention des métaux nobles
• H01M 8/008 - Élimination ou recyclage des éléments à combustible

Abrégé

The invention relates to an electrochemical cell (1) for a highpressure electrolyser, comprising: a closed cell frame (3) made of a high-pressure-resistant first material (5); an electrochemical reaction region (7), which is arranged completely inside the cell frame (3) and comprises an anodic half cell and a cathodic half cell; a gap (9), which spatially separates the reaction region (7) from the cell frame (3); and a second material (11) introduced into the gap (9), wherein the second material (11) is an electrical insulator, and wherein the second material (11) has a lower diffusion coefficient with respect to the entry of foreign ions into the reaction region (7). The invention also relates to a cell stack (19) comprising a plurality of electrochemical cells (1) and to a high-pressure electrolyser comprising a cell stack (19).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/05 - Cellules sous pression
• C25B 9/73 - Assemblages comprenant plusieurs cellules du type filtre-presse

Classes IPC  ?

• H01H 33/90 - Interrupteurs comportant des moyens séparés pour diriger, obtenir ou augmenter l'écoulement du fluide extincteur d'arc l'écoulement du fluide extincteur d'arc étant produit ou augmenté par le mouvement de pistons ou d'autres organes produisant une pression ce mouvement étant réalisé par ou conjointement avec le mécanisme qui actionne les contacts
• H01H 33/91 - Interrupteurs comportant des moyens séparés pour diriger, obtenir ou augmenter l'écoulement du fluide extincteur d'arc l'écoulement du fluide extincteur d'arc étant produit ou augmenté par le mouvement de pistons ou d'autres organes produisant une pression ce mouvement étant réalisé par ou conjointement avec le mécanisme qui actionne les contacts le fluide extincteur d'arc étant de l'air ou un gaz

Classes IPC  ?

• H02B 7/01 - Postes de transformation d'intérieur, p. ex. postes de transformation compacts à isolation gazeuse
• H02B 7/06 - Postes de transformation pour la distribution, p. ex. pour réseau urbain
• H02H 3/08 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge
• H02H 9/02 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de courant
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

A direct air capture system (100) includes a frame (200) arranged to define a first adsorption unit (204) and a second adsorption unit (204) arranged around a central axis (208), a first adsorption cell (202) disposed in the first adsorption unit (204) and a second adsorption cell (202) disposed in the second adsorption unit (204), each including a first opening and a second opening, a hub (206) rotatably coupled to the frame (200) for rotation around the central axis (208), an upper arm (210) and a lower arm (210) each coupled to the hub (206) for co-rotation around the central axis (208), and an upper lid (214) coupled to the upper arm (210) and a lower lid (214) coupled to the lower arm(210), both movable between an open position and a closed position. The upper arm (210) and the lower arm (210) are movable so that the upper and lower lids (214) are positioned concentric with the first opening and the second opening, respectively.

Classes IPC  ?

• B01D 53/04 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes

Classes IPC  ?

• B01J 3/00 - Procédés utilisant une pression supérieure ou inférieure à la pression atmosphérique pour obtenir des modifications chimiques ou physiques de la matièreAppareils à cet effet
• B01J 3/04 - Récipients sous pression, p. ex. autoclaves
• B01J 4/00 - Dispositifs d'alimentationDispositifs de commande d'alimentation ou d'évacuation
• B01J 7/02 - Appareillage pour la production de gaz par voie humide
• B01J 16/00 - Procédés chimiques généraux faisant réagir des liquides avec des solides non particulaires, p. ex. des matériaux en feuillesAppareillage spécialement adapté à cet effet
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C01B 3/08 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés inorganiques comportant un hydrogène lié électropositivement, p. ex. de l'eau, des acides, des bases, de l'ammoniac, avec des agents réducteurs inorganiques avec des métaux

Abrégé

A method of operating a microgrid while isolated from an outside grid includes dispatching a plurality of green generating systems to deliver a first quantity of power to the microgrid. The method also includes drawing a second quantity of power from the microgrid to power a system that operates to produce a final output product. The drawing step further includes powering a first load to produce a first output product in response to the consumption of a first portion of the second quantity of power and powering a second load to produce the final output product based in part on the first output product and in response to the consumption of a second portion of the second quantity of power. The method also includes calculating a power difference between the first quantity of power and the second quantity of power and reducing the second quantity of power in response to the power difference indicating that the second quantity of power is greater than the first quantity of power. The reducing step follows a sequence of reductions which includes calculating a selection criterion for each of the first load and the second load based in part on at least two of a restart criterion, a product storage criterion, a final product closeness criterion, an oversize criterion, and a magnitude criterion of each of the first load and the second load, and reducing one of the first portion of the second quantity of power and the second portion of the second quantity of power based on the calculation of the selection criteria.

Classes IPC  ?

• H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

A method of operating a microgrid includes operating one of a plurality of power sources to deliver power to the microgrid. The method also includes measuring a quantity of power delivered to the microgrid, drawing power from the microgrid to power one of a plurality of loads, each load including a plurality of separately operable subsystems, and calculating an automation level and a production change capability for each load and subsystem of the plurality of subsystems. The method also includes measuring a quantity of power drawn from the microgrid and reducing the quantity of power drawn from the microgrid in response to a measured quantity of power drawn exceeding a measured quantity of power provided. The reducing step follows a sequence of reductions which includes reducing an operating level of a first load of the plurality of loads, determining that the reduction in operating level was insufficient to reduce the measured quantity of power drawn from the microgrid to a point at or below the measured quanity of power provided, and limiting the power consumption of a first subsystem below the reduced operating level in response to the determining step concluding the reducing step did not sufficiently reduce the quantity of power drawn from the microgrid. The first subsystem is selected based in part on the calculated automation level and the production change capability.

Classes IPC  ?

• H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

A method determines an operating state of a transformer located in a high-voltage network. The method includes obtaining measurement values from sensors located in or on a power transformer. The measurement values are used to obtain a liquid temperature measurement of the insulating liquid. The measurement values are supplied to a thermohydraulic simulation model. The thermohydraulic simulation model then determines the operating state of the transformer by providing simulated state parameters which represent the operating state of the transformer. A parameter is an insulating liquid temperature state parameter which corresponds to a temperature value simulated for the insulating liquid. It is desirable to take weather influences such as wind or rain into account. A controlled system is connected upstream of the thermohydraulic simulation model and determines a control deviation formed from the difference between the liquid temperature measurement value and the corresponding simulated insulating liquid temperature state parameter.

Classes IPC  ?

• G01R 31/62 - Test de transformateurs

Abrégé

Methods for operating an electrolysis system that includes an electrolyzer for generating hydrogen and oxygen as product gases, a product gas flow being formed in a phase mixture including water and a respective product gas with a content of a foreign gas are provided. A rotation is impressed upon at least one product gas flow such that a phase separation of water and product gas is produced in the phase mixture, wherein the product gas is supplied to a catalytically active zone such that foreign gas is recombined with the product gas in order to form water, and after flowing through the catalytically active zone, the product gas released from the foreign gas is mixed with the liquid phase again in order to form a phase mixture

Classes IPC  ?

• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

A method of forming a stochastic structure, the method comprising the steps: selecting a parent structure, the parent structure defining an array of unit cells, initially the array of unit cells is uniform, defining each unit cell of the array of unit cells a size, a geometry, a relative density and at least one node, placing an implicit function of an object or part of an object at each node, wherein the object having parameters to define its position xcn, ycn, zcn, and extent rxn, ryn, and rzn or a shape defined by an equation having at least the parameters x, y and z, randomising any one or more of the parameters by applying a statistical distribution, the statistical distribution having a standard deviation s, the standard deviation s controls at least one of the three dimensions where random values of each parameter are created and selecting a value greater than zero of the standard deviation s to define the degree of randomisation for any one or more of the parameters, thereby creating a randomised array of unit cells representative of the stochastic structure wherein the randomised array of unit cells forms three-dimensional volume data comprising iso-surfaces, the method comprising rendering the iso-surfaces with polygons having faces and vertices to form a solid model of the stochastic structure and optionally printing the stochastic structure in an additive manufacturing process.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• G06T 17/10 - Description de volumes, p. ex. de cylindres, de cubes ou utilisant la GSC [géométrie solide constructive]

Abrégé

The invention relates to an electrolysis cell (1) for polymer electrolyte membrane electrolysis with a cathodic half-cell (5) and an anodic half-cell (7). The cathodic half-cell (5) and the anodic half-cell (7) are separated from one another by means of a polymer electrolyte membrane (4). At least one of the half-cells (7, 8) has a channel structure (13a, 13b) which is formed by a gas diffusion layer (11a, 11b) and by a bipolar plate (21a, 21b). The bipolar plate (21a, 21b) has a main body (23) made of a metal base material (25, 27), to which a coating (29) made of a coating material (31) is applied. The coating material (31) is present in a homogeneous mixed phase comprising titanium niobium (TiNb), titanium niobium nitride and also iridium and/or iridium carbide (IrC), in particular in a homogeneous single layer which is formed on the metal main body (23). A coating (29) to be applied as a protective layer to a metal component of an electrolysis cell (1) is also described. This coating comprises the constituents titanium niobium (TiNb) and titanium niobium nitride (TiNbN) and also admixtures of iridium carbide (IrC) and/or (Ir).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/60 - Éléments de structure des cellules
• C25B 9/75 - Assemblages comprenant plusieurs cellules du type filtre-presse avec une électrode bipolaire
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 11/032 - Électrodes à diffusion de gaz

Abrégé

The invention relates to an electrolytic cell (1) for polymer electrolyte membrane electrolysis with a cathode half-cell (2) and an anode half-cell (3), the cathode half-cell (2) and the anode half-cell (3) being separated from one another by means of a polymer electrolyte membrane (4). The anodic half-cell (3) has a gas diffusion layer (9b). The gas diffusion layer (9b) is made from a fine-meshed metallic carrier material (10). An anodic catalyst layer (12) with an anodic catalyst material (18) is applied onto the polymer electrolyte membrane (4). The anodic catalyst layer (12) is arranged adjacent to the gas diffusion layer (9b), wherein a thin protective layer (14) is applied in each case locally and selectively onto the fine-meshed carrier material (10) in the area of the contact points between the gas diffusion layer (9b) and the adjoining anodic catalyst layer (12). The thin protective layer (14) comprises iridium and/or iridium oxide so that the input of anodic catalyst material (18) into the gas diffusion layer (9b) is inhibited. The invention also relates to a method (100) for producing an electrolytic cell (1) for polymer electrolyte membrane electrolysis.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 11/02 - ÉlectrodesLeur fabrication non prévue ailleurs caractérisées par la configuration ou la forme
• C25B 11/032 - Électrodes à diffusion de gaz
• C25B 11/051 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support
• C25B 11/063 - Métal valve, c.-à-d. dont l’oxyde est semi-conducteur, p. ex. titane
• C25B 11/077 - Oxyde de métal non noble

Abrégé

The invention relates to a fuel cell assembly having a plurality of fuel cells amalgamated electrically and mechanically in a fuel cell stack, further including a residual gas treatment device for hydrogen-containing and oxygen-containing residual gases of the fuel cells, wherein the residual gas treatment device includes a recombination fuel cell with catalyst and membrane that is led via a power circuit separate from the fuel cells, and to a method for treating hydrogen-containing and oxygen-containing residual gases from fuel cells.

Classes IPC  ?

• H01M 8/0662 - Traitement des réactifs gazeux ou des résidus gazeux, p. ex. nettoyage
• H01M 8/249 - Groupement d'éléments à combustible, p. ex. empilement d'éléments à combustible comprenant plusieurs groupements d'éléments à combustible, p. ex. ensembles modulaires

Abrégé

The invention relates to an electrolysis plant (60) having: a plurality of electrolysis cells (12) which are electrically connected in series and are arranged consecutively at least in part in a stacking direction (14), wherein the series arrangement can be electrically coupled to an electrical power source (16); a cell supply unit (18) for supplying the electrolysis cells (12) with at least one process fluid for normal operation; and supply lines (24) which are connected to the cell supply unit (18) and to opposite ends (20, 22) of the consecutively arranged electrolysis cells (12). A material of the supply lines (24) comprises metal, and at least one of the supply lines (24) comprises an electrical insulating portion (38) having a control electrode (66) which protrudes at least partially into the interior of the electrical insulating portion (38). The control electrode (66) has a catalyst material (68) and is electrically contacted to a metal pipe section of the supply line (24) at the anode end thereof.

Classes IPC  ?

• C23F 13/00 - Moyens pour empêcher la corrosion des métaux par protection anodique ou cathodique
• C25B 1/00 - Production électrolytique de composés inorganiques ou de non-métaux
• C25B 9/60 - Éléments de structure des cellules
• C25B 9/70 - Assemblages comprenant plusieurs cellules

Abrégé

Disclosed is a method for operating an electrolysis plant for producing hydrogen and oxygen as product gases, wherein the oxygen product gas, which additionally contains hydrogen as a foreign gas, is fed from an electrolyser to a downstream gas separator, wherein when a predefined limit value for the hydrogen concentration in the oxygen product gas is exceeded, an inert gas (L) is fed to the gas separator such that the hydrogen concentration in the oxygen product gas is lowered. The invention further relates to a corresponding electrolysis plant.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
• C25B 15/023 - Mesure, analyse ou test pendant la production électrolytique
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to a method for operating an electrolysis plant for producing hydrogen and oxygen as product gases, wherein the hydrogen product gas, which additionally contains oxygen as a foreign gas, is fed from an electrolyser to a downstream gas separator, wherein when a predefined limit value for the oxygen concentration in the hydrogen product gas is exceeded, hydrogen having a low oxygen concentration is fed to the gas separator such that the oxygen concentration in the hydrogen product gas is lowered. The invention further relates to a corresponding electrolysis plant.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/17 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure
• C25B 15/023 - Mesure, analyse ou test pendant la production électrolytique
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to an electrolytic cell for polymer electrolyte membrane electrolysis with a cathode half-cell and an anode half¬ cell, the cathode half-cell and the anode half-cell being separated from one another by means of a polymer electrolyte membrane. The cathode half-cell has a first catalyst material designed to catayse a reduction of molecular oxygen, and a second catalyst material designed to catalyae a reduction of hydrogen ions. The first catalyst material is introduced into a first catalyst layer and the second catalyst material is introduced into a second catalyst layer different from the first catalyst layer, the first catalyst layer being disposed directly adjacent to the second catalyst layer. The invention also relates to a method for producing an electrolytic cell for polymer electrolyte membrane electrolysis.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 3/25 - Réduction
• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 11/052 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques
• C25B 11/053 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques caractérisées par des revêtements électro-catalytiques multicouches
• C25B 11/061 - Métal ou alliage
• C25B 11/067 - Composé inorganique, p. ex. oxyde d'indium-étain, silice ou oxydes de titane
• C25B 11/075 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’un seul élément catalytique ou composé catalytique
• C25B 11/089 - Alliages

Abrégé

The invention relates to a mounting device for use in an electrolyser for mechanically pressing a plurality of electrolysis cells, which are centered in relation to each other in the axial direction by means of a centering linkage to form an electrolysis stack, by applying an axial force (F), said mounting device comprising a hydraulic assembly having a pressure plate, an actuator, and a receptacle, the receptacle having a number of connecting elements located on the periphery of the pressure plate for detachable connection to the electrolysis stack in such a way that, when the hydraulic assembly is activated by the axial force (F), the mechanical pressing can be carried out. The invention also relates to the use of a mounting device for mounting electrolysis cells of an electrolyser.

Classes IPC  ?

• C25B 9/05 - Cellules sous pression
• C25B 9/73 - Assemblages comprenant plusieurs cellules du type filtre-presse
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• H01M 8/248 - Moyens pour comprimer les empilements d’éléments à combustible

Abrégé

The invention relates to an offshore electrolysis plant including an electrolyzer, which is disposed in a container, and a heat exchanger, which is designed to absorb process heat from the electrolysis and to discharge said process heat out of the container in a closed coolant circuit. A coolant pump for conveying the coolant in the coolant circuit is disposed in the container. The invention also relates to a method for operating an offshore electrolysis plant having an electrolyzer disposed in a container. In the method, in order to absorb process heat from the electrolysis and to discharge said process heat out of the container, coolant is conducted in a closed coolant circuit, wherein a coolant pump disposed in the container is operated.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/73 - Assemblages comprenant plusieurs cellules du type filtre-presse
• C25B 15/021 - Commande ou régulation des opérations de chauffage ou de refroidissement

Abrégé

The invention relates to a method for operating an electrolysis plant having an electrolyser for generating hydrogen and oxygen as product gases, and a control unit. At least the hydrogen product gas, which also contains oxygen as an external gas, is compressed. According to the invention, the energy required in the purification of the foreign gas in the product gas of the electrolysis plant can be reduced by making optimum use of the heating of the product gas by the compression process, whereby the hydrogen product gas is subsequently fed to a recombiner which contains a catalyst in which the oxygen recombines with the hydrogen to form water. The invention also relates to an electrolysis plant designed for efficient product gas purification, by means of which hydrogen purified from oxygen as an impurity gas can be produced as a product gas.

Classes IPC  ?

• B01D 53/26 - Séchage des gaz ou vapeurs
• C01B 3/50 - Séparation de l'hydrogène ou des gaz contenant de l'hydrogène à partir de mélanges gazeux, p. ex. purification
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to an electrolysis system having a plurality of electrolytic cells for water electrolysis. An anode-side water circuit leads from an anode-side outlet, via an oxygen separator, a main pump and a cooling device, to an anode-side inlet of an anode chamber. A cathode-side water circuit leads, similarly, from a cathode-side outlet, via an oxygen separator, a main pump and a cooling device, to a cathode-side inlet of a cathode chamber. Cleaning of the water during non-operation of the electrolysis system is achieved by adding an anode-side partial-flow branch, which leads from a branch-off point, via an auxiliary ion exchanger, to a collection point in the anode-side water circuit.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to a gas diffusion layer (50) for an electrochemical cell (90), having a contacting unit (10) and a metal unit (12) which is arranged at or on the contacting unit (10). With respect to a main surface (30) with a defined thickness (d), the metal unit (12) has a plurality of projections (14) which are substantially perpendicular to the main surface (30). At least one opening (16) is formed on at least one side surface (15) or top surface (13) of the plurality of projections (14) of the metal unit (12). Each elongation (18) of the plurality of projections (14) is at least three times the thickness (d) of the metal unit (12).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 9/60 - Éléments de structure des cellules
• C25B 9/75 - Assemblages comprenant plusieurs cellules du type filtre-presse avec une électrode bipolaire
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 11/032 - Électrodes à diffusion de gaz
• H01M 8/0232 - Métaux ou alliages
• H01M 8/0254 - CollecteursSéparateurs, p. ex. séparateurs bipolairesInterconnecteurs caractérisés par la forme ondulé ou dentelé
• H01M 8/0258 - CollecteursSéparateurs, p. ex. séparateurs bipolairesInterconnecteurs caractérisés par la configuration des canaux, p. ex. par le champ d’écoulement du réactif ou du réfrigérant
• H01M 8/10 - Éléments à combustible avec électrolytes solides
• H01M 8/1018 - Matériaux d’électrolyte polymère

Abrégé

The invention relates to a method for operating a DC-DC converter for supplying an electrolysis device with electrical operating power, in which in a step at least four controllable semiconductor switching elements in an H-bridge arrangement with interphase transformers connected downstream are controlled by a predetermined control signal sequence for direct conversion of an electrical input DC voltage into an electrical output DC voltage. At least two DC voltage converter units are used, each having four controllable semiconductor switching elements in an H-bridge arrangement with interphase transformers connected downstream, the following steps being carried out: detecting a number of the DC voltage converter units, and adapting the control signal sequence to the detected number of DC voltage converter units.

Classes IPC  ?

• H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
• H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique

Abrégé

The present invention relates to the generation of at least one electrolysis product, in particular to a hydropower-electrolysis system, a hydro power plant and a method for generating at least one electrolysis product. An electrolysis assembly includes a plurality of electrolysis cells configured to generate, upon provision of a direct electrical current, at least one electrolysis product from a supply medium. A hydropower assembly is electrically connected to the electrolysis assembly for operating the electrolysis cells of the electrolysis assembly based on electrical power generated by the hydropower assembly.

Classes IPC  ?

• C25B 9/70 - Assemblages comprenant plusieurs cellules
• C25B 15/00 - Conduite ou entretien des cellules

Abrégé

The invention relates to a method for producing hydrocarbons (6), having the steps of: a) carrying out an electrolysis (3) of water, whereby hydrogen and oxygen are produced; b) generating a carbon source which has carbon dioxide and/or carbon monoxide or substantially consists of carbon dioxide and/or carbon monoxide; c) producing (5) the hydrocarbons (6) from the hydrogen produced in step a) and the carbon dioxide produced in step b), wherein at least some of the produced hydrocarbons are provided in the form of liquid hydrocarbons and an exhaust gas is formed together with the hydrocarbons (6), said exhaust gas having hydrogen, carbon dioxide, and/or carbon monoxide; d) separating the exhaust gas from the liquid hydrocarbons (6); and e) recycling (8) exhaust gas in that a reaction of the exhaust gas with the oxygen and/or water produced in step a) is carried out, whereby recycled products are formed which have carbon dioxide and/or carbon monoxide, water, and optionally hydrogen. The method is particularly advantageous for producing hydrocarbons with methanol as a preferred product from a methanol synthesis (13). The methanol can be further used as a starting material (reactant) or intermediate product for producing (19) additional high-quality liquid hydrocarbons.

Classes IPC  ?

• C10G 2/00 - Production de mélanges liquides d'hydrocarbures de composition non définie à partir d'oxydes de carbone
• C10J 3/00 - Production de gaz contenant de l'oxyde de carbone et de l'hydrogène, p. ex. du gaz de synthèse ou du gaz de ville, à partir de matières carbonées solides par des procédés d'oxydation partielle faisant intervenir de l'oxygène ou de la vapeur
• C10K 3/02 - Modification de la composition chimique des gaz combustibles contenant l'oxyde de carbone en vue de produire un carburant amélioré, p. ex. un carburant de pouvoir calorifique différent qui peut ne pas contenir d'oxyde de carbone par traitement catalytique
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to an electrolysis device (60) comprising - a plurality of electrolysis cells (12) which are electrically connected in series and which are arranged at least partly successively in a stacking direction (14) in a cell stack (54), wherein the series connection can be electrically coupled to an electrical energy source (16); - a cell supply unit (18) for supplying at least one operating medium to the electrolysis cells (12) in normal operation; and - supply lines (24) connected to the cell supply unit (18) and to the cell stack (54), wherein a material of the supply lines (24) comprises metal. According to the invention, the supply lines (24) are connected exclusively to a first end (20) of the cell stack (54) so that the first end (20) of the cell stack (54) is electrically coupled to the cell supply unit (18), wherein the first end (20) of the cell stack (54) can be coupled to a negative electrical potential (34) of the electrical energy source (16).

Classes IPC  ?

• C23F 13/08 - Électrodes spécialement adaptées pour inhiber la corrosion par protection cathodiqueLeur fabricationAlimentation de celles-ci en courant électrique
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 9/00 - Cellules ou assemblages de cellulesÉléments de structure des cellulesAssemblages d'éléments de structure, p. ex. assemblages d'électrode-diaphragmeCaractéristiques des cellules relatives aux procédés
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 15/00 - Conduite ou entretien des cellules
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The invention relates to an electrolysis device (60) comprising a plurality of electrolysis cells (12) which are electrically connected in series and which are arranged one after the other at least partly in a stack direction (14), wherein the series circuit can be electrically coupled to an electric energy source (16); a cell supply unit (18) for supplying the electrolysis cells (12) with at least one operating fluid for an intended operation; and supply lines (24) connected to the cell supply unit (18) and to opposite ends (20, 22) of electrolysis cells (12) arranged one after the other. According to the invention, a negative electric potential (34) of the electric energy source (16) can be electrically coupled to an electric reference potential of the cell supply unit (18).

Classes IPC  ?

• C23F 13/08 - Électrodes spécialement adaptées pour inhiber la corrosion par protection cathodiqueLeur fabricationAlimentation de celles-ci en courant électrique
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 9/00 - Cellules ou assemblages de cellulesÉléments de structure des cellulesAssemblages d'éléments de structure, p. ex. assemblages d'électrode-diaphragmeCaractéristiques des cellules relatives aux procédés
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 15/00 - Conduite ou entretien des cellules
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

A combustor (100) for a gas turbine comprising a combustion chamber (102) having an inlet (104). The combustion chamber inlet (104) is defined by a burner (30). The burner comprises a pilot burner section (200) centred on the centre axis (Y); a swirler section (300) comprising vanes (302) which extend radially outwards from the pilot burner section (200); and a main burner section (400) which extends radially outwards from, and surrounds, the swirler section (300).

Classes IPC  ?

• F23R 3/14 - Aménagements de l'entrée d'air pour l'air primaire créant un tourbillon au moyen d'ailettes de tourbillonnement
• F23R 3/16 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par la configuration du flux d'air ou du flux de gaz avec des dispositifs à l'intérieur du tube à flamme ou de la chambre de combustion pour influer sur le flux d'air ou de gaz
• F23R 3/28 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par l'alimentation en combustible
• F23R 3/34 - Alimentation de différentes zones de combustion

Abrégé

An aerofoil for a gas turbine engine comprises a suction side wall, a pressure side wall, a leading edge (215) and a trailing edge (216). The suction side wall (212) and the pressure side wall (213) extend from a first end to a second end and meet to define the leading edge and the trailing edge. The suction side wall (212) and pressure side wall (213) further comprise cooling passages (218c) within the wall thickness of the aerofoil walls (217), the cooling passages comprising hollow triangular passages (218c).

Classes IPC  ?

• F01D 5/18 - Aubes creusesDispositifs de chauffage, de protection contre l'échauffement ou de refroidissement des aubes

Abrégé

A power generation system includes a reactor operable to produce a flow of hydrogen and a flow of steam in response to the receipt of a flow of reactant mixture. A combustor is operable to produce a flow of combustion gas in response to the receipt of the flow of hydrogen and a first portion of the flow of steam, a turbine is operable to produce rotation of a first shaft in response to the receipt of the flow of combustion gas, and a steam turbine is operable to produce rotation of a second shaft in response to the receipt of a second portion of the flow of steam.

Classes IPC  ?

• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
• F02C 3/22 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de produits de combustion comme fluide de travail utilisant un combustible, un oxydant ou un fluide de dilution particulier pour produire les produits de combustion le combustible ou l'oxydant étant gazeux aux température et pression normales
• F02C 3/30 - Addition d'eau, de vapeur ou d'autres fluides aux composants combustibles ou au fluide de travail avant l'échappement de la turbine
• F02C 6/00 - Ensembles fonctionnels multiples de turbines à gazCombinaisons d'ensembles fonctionnels de turbines à gaz avec d'autres appareilsAdaptations d'ensembles fonctionnels de turbines à gaz à des applications particulières
• F02C 7/16 - Refroidissement des ensembles fonctionnels caractérisé par l'agent refroidisseur

Abrégé

The invention relates to a method for operating the electrolysis system (01), wherein deionized water (05) provided by a water treatment (04) is split in an electrolyzer (06) into hydrogen and oxygen. The waste heat produced in the electrolyzer (06) is supplied to a cooling device (07) via a cooling circuit. In order to support cooling, an ion-containing waste water (02) obtained in the water treatment (04) is supplied to the cooling device (07).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/021 - Commande ou régulation des opérations de chauffage ou de refroidissement
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

The present invention relates to the generation of an electrolysis product (6), in particular to an electrolysis system (100) and a method for generating the electrolysis product (6). A plurality of electrically intercoupled electrolysis units (1) are provided. Each of the electrolysis units (1) comprises (i) an electrolysis assembly (2) comprising a plurality of electrolysis cells (5) configured to, upon provision of a direct current, generate the electrolysis product (6) from a supply medium (7), and (ii) a photovoltaic assembly (3) electrically coupled to the electrolysis assembly (2) for providing the electrolysis cells (5) with direct current generated from incident electromagnetic radiation.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 1/23 - Oxyde de carbone ou gaz de synthèse
• C25B 3/26 - Réduction du dioxyde de carbone
• H02J 1/14 - Équilibrage de la charge dans un réseau
• H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 15/00 - Systèmes d'accumulation d'énergie électrique

Abrégé

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 the5 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.

Classes IPC  ?

• F23N 1/00 - Régulation de l'alimentation en combustible
• F23N 5/24 - Systèmes prévenant le développement de conditions anormales ou indésirables, c.-à-d. dispositifs de sécurité
• F23R 3/36 - Alimentation en combustibles différents

Abrégé

A method of controlling a combustor of a gas turbine engine is disclosed. The method comprising the steps supplying a total fuel quantity to the combustor dependent on a load of the gas turbine engine, the total fuel quantity is split into a pilot fuel quantity and a main fuel quantity via a pilot fuel split, monitoring at least one signal of at least one condition of the gas turbine engine, generating a steady state value of the at least one signal indicative of a steady state of the gas turbine engine, detecting a change in the at least one signal from the steady-state value. When the change in the at least one signal from the steady state value exceeds a predetermined limit, the method applies the steps generating a transient split offset for the pilot fuel split from a look-up table and applying the transient split offset to the pilot fuel split while maintaining the total fuel quantity being supplied at any point in time.

Classes IPC  ?

• F02C 7/228 - Division du fluide entre plusieurs brûleurs
• F02C 9/28 - Systèmes de régulation sensibles aux paramètres ambiants ou à ceux de l'ensemble fonctionnel, p. ex. à la température, à la pression, à la vitesse du rotor
• F23R 3/34 - Alimentation de différentes zones de combustion

Abrégé

A method of controlling a combustor of a gas turbine engine, the method comprising the steps supplying a total fuel quantity to the combustor dependent on a load of the gas turbine engine, the total fuel quantity is split into a pilot fuel quantity and a main fuel quantity via a scheduled pilot fuel split, the pilot fuel split is the percentage of the pilot fuel quantity of the total fuel quantity, monitoring combustion instability, applying a steady state active pilot split offset to the scheduled pilot fuel split when a predetermined temperature of the combustor is exceeded and/or a predetermined value of combustion instability is exceeded to create a steady state pilot fuel split, monitoring a condition of the gas turbine engine that influences an air / fuel ratio in the combustor, disabling the steady state active pilot split offset when the condition of the gas turbine engine is indicative of a transient condition and when a threshold value of combustion instability is exceeded, and applying a transient active pilot split offset to the steady state pilot fuel split while maintaining the total fuel quantity being supplied at any point in time, the transient active pilot split offset and the steady state active pilot split offset result in a total split offset, the total split offset being greater than the steady state active pilot split offset and the rate of change of the transient active pilot split offset is faster than the rate of change of the steady state active pilot split offset.

Classes IPC  ?

• F02C 7/228 - Division du fluide entre plusieurs brûleurs
• F02C 9/28 - Systèmes de régulation sensibles aux paramètres ambiants ou à ceux de l'ensemble fonctionnel, p. ex. à la température, à la pression, à la vitesse du rotor
• F23R 3/34 - Alimentation de différentes zones de combustion

Abrégé

The invention relates to a method for operating an electrolysis device (2) for decomposition of water at both high and low ambient temperatures. The method comprises the following steps: - providing at least one electrolysis unit (3), comprising at least one electrolytic cell, having at least one inlet opening (6) for a first reactant stream (4) and having at least one outlet opening (8) for a first product stream, - producing the first product stream (P) from the first reactant stream (4) in the electrolysis unit (3), - separating the product stream (P) into a water stream (W) and a gas stream (G), - cooling the water stream (W) by introducing it into at least one cooling device (20) in which the heat of the water stream (W) is dissipated directly to the environment, the cooling device being arranged in an oblique position, - interrupting the cooling of the water stream (W) if the electrolysis unit (3) is switched off or if the electrolysis unit (3) is in standby mode, and - registering the ambient temperature and, if the ambient temperature is below 1°, emptying the water stream (W) from the cooling device (20) into a liquid reservoir.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/021 - Commande ou régulation des opérations de chauffage ou de refroidissement
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

A device and method for determining the purity of hydrogen, includes a measurement fuel cell cascade having at least one measurement fuel cell, a hydrogen inlet and a hydrogen outlet, a cell voltage monitoring unit that is electrically connected to the measurement fuel cell stack and monitors a voltage output of the measurement fuel cell stack, and a valve located downstream of the measurement fuel cell cascade in the direction of flow of the hydrogen for allowing dead-end operation of the measurement fuel cell cascade. The device for determining the purity of hydrogen further includes an evaluation unit that is connected to the cell voltage monitoring unit and receives a signal corresponding to a voltage output of the measurement fuel cell cascade from the cell voltage monitoring unit as a function of time, wherein the evaluation unit is designed to determine the purity of the hydrogen from the received signal.

Classes IPC  ?

• G01N 27/407 - Cellules et sondes avec des électrolytes solides pour la recherche ou l'analyse de gaz
• G01N 27/417 - Systèmes utilisant des cellules et des sondes à électrolyte solide
• H01M 8/0444 - ConcentrationDensité
• H01M 8/04537 - Variables électriques
• H01M 8/249 - Groupement d'éléments à combustible, p. ex. empilement d'éléments à combustible comprenant plusieurs groupements d'éléments à combustible, p. ex. ensembles modulaires

Abrégé

A computer-implemented method for detecting an oil leak in a beam pump, wherein, during pumping movement of the rod linkage through the wellhead, a stroke region is formed, the method including a) capturing images of an image sequence containing at least the stroke region of the rod linkage, b) detecting soiling in the stroke region of the rod linkage in comparison with a known clean state for an image in question of the image sequence, c) ascertaining the position of the detected soiling for an image in question of the image sequence by the associated position of the rod linkage, d) determining the change in the soiling at the ascertained position over at least one pumping cycle from the images of the image sequence, e) checking if the change in the soiling exceeds a predefined limit value, and if applicable, outputting a warning of an oil leak.

Classes IPC  ?

• E21B 47/009 - Surveillance des systèmes de pompe à balancier

Abrégé

The invention relates to a computer-implemented method for determining an operational property of a drill-rod borehole pump (1). A load-distance diagram with curve points for the pump (1) is ascertained by an analysis device (140) using a detection means (130) and is provided as an operational load-distance diagram (DC1-DC5) with operational curve points, wherein in a training mode, a load-distance diagram model for the pump with model curve points is generated and trained on the basis of machine learning, at least two specified analysis regions (Q1- Q4) are determined in the load-distance diagram model, and a reference point (C21-C24, C31-C36, C41-C48, C51-C58) is ascertained from the model curve points of at least one region; and in an operating mode for the operational load-distance diagram, a check is carried out to determine whether the at least one reference point is contained within the surface contained by the operational curve points, and if so, the operational property of the conveyor pump is determined therefrom.

Classes IPC  ?

• E21B 47/009 - Surveillance des systèmes de pompe à balancier

Abrégé

A computer-implemented method for determining an operating property of a pumpjack (1), wherein the pump (1) has a pump head (110, 111) that is connected to a kinematic converter (120) via a rod (5, 10), and the kinematic converter (120) is driven during operation by a motor (3), and a load-travel characteristic curve with curve points for the pump (1) is ascertained by an analysis device (140) using an acquisition means (130) and is provided in the form of an operating load-travel characteristic curve (DC1-DC5) with operating curve points, wherein the analysis device (140), in a training mode, provides at least one model load-travel characteristic curve with respective model curve points that is normalized to a predefined reference variable, and at least two subsets of the model curve points are acquired as a first and at least one second feature on the basis of machine learning, and the first and the at least one second feature are generated and trained with a k-means algorithm in the form of at least one random forest model and, in an operating mode, the operating curve points are normalized to the reference variable and a check is performed as to whether there is similarity between at least one subset of the operating curve points and the at least one random forest model, and if so, the operating property of the pump (1) is determined therefrom.

Classes IPC  ?

• E21B 43/12 - Procédés ou appareils pour commander l'écoulement du fluide extrait vers ou dans les puits
• E21B 47/009 - Surveillance des systèmes de pompe à balancier
• G06N 5/00 - Agencements informatiques utilisant des modèles fondés sur la connaissance

Abrégé

The invention relates to an electrolysis device (10) having at least one electrolytic cell (12) and an electrolysis energy source (14) connected to the at least one electrolytic cell (12). The invention also relates to a method for operating an electrolysis device (10), in which an electrical electrolysis current (48) is applied to at least one electrolytic cell (12) of the electrolysis device (10) during normal operation in order to perform electrolysis of a substance located in a reaction chamber of the electrolytic cell (12), and in which the electrical electrolysis current (48) is detected by means of a sensor unit (46). The aim of the invention is to improve the safety of an electrolysis device (10) or of an electrolytic cell (12) and to improve the operation thereof outside the normal electrolysis operation. According to the invention, a protective voltage (US) is applied to the at least one electrolytic cell (12) according to the detected electrical electrolysis current (48), which protective voltage is provided individually for the at least one electrolytic cell (12).

Classes IPC  ?

• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes
• H02J 1/10 - Fonctionnement de sources à courant continu en parallèle

Abrégé

The invention relates to a computer-implemented method for determining an operational property of a drill-rod borehole pump (1). The pump (1) has a pump head (110, 111) which is connected to a kinematic converter (120) via a drill rod (5, 10), and the kinematic converter (120) is driven by a motor (3) during operation. A load-distance diagram with curve points for the pump (1) is ascertained by an analysis device (140) using a detection means (130) and is provided as an operational load-distance diagram (DC1-DC5) with operational curve points, wherein in a training mode, at least one model load-distance diagram with respective model curve points is provided by the analysis device (140), said model load-distance diagram being normalized to a specified reference variable, and for at least one sub-quantity of the model curve points, a model is generated and trained on the basis of a Kohonen network with elliptical Fourier descriptors; and in an operating mode, the operational curve points are normalized to the reference variable, elliptical Fourier descriptors are determined for the operational curve points, and a check is carried out to determine whether a similarity exists between the elliptical Fourier descriptors of the operational curve points and the model of the Kohonen network, and if so, the operational property of the pump (1) is determined therefrom.

Classes IPC  ?

• E21B 47/009 - Surveillance des systèmes de pompe à balancier
• G06F 18/2131 - Extraction de caractéristiques, p. ex. en transformant l'espace des caractéristiquesSynthétisationsMappages, p. ex. procédés de sous-espace basée sur un traitement dans le domaine de transformation, p. ex. transformée en ondelettes
• G06N 3/0499 - Réseaux à propagation avant
• G06N 3/088 - Apprentissage non supervisé, p. ex. apprentissage compétitif

Abrégé

A combustor (36) for a gas turbine, the combustor (36) comprising a combustor axis (44) about which is arranged in flow sequence a radial swirler (40), a pre-chamber (42) and a combustion chamber (38). The radial swirler (40) comprises a base plate (45), an annular array of swirler vanes (46), defining swirler slots (47), arranged around the base plate (45), a main fuel injector (48A, 48B) for injecting a main fuel and a pilot fuel injector (50) for injecting a pilot fuel. The combustor comprises a premixer nozzle (70) located on the combustion chamber (38). The premixer nozzle (70) comprising a housing (78), an array of tubes (80) within the housing (78) and a first fuel gallery (72) for supplying a first fuel (83). Each tube (80) of the array of tubes (80) comprising an inlet (86), an outlet (88), a first aperture (90) and a second aperture (92). The first fuel gallery (72) is arranged to supply the first fuel (83) to the first aperture (90) and / or the second aperture (92). In use, air (34) is supplied to the combustor and a first portion of the air (34A) passes through the radial swirler (40) and a second portion of the air (34B) passes through the tubes (80) of the array of tubes (80) from inlet (86) to outlet (88) and mixes with the first fuel (83) that passes through the first aperture (90) and / or the second aperture (92).

Classes IPC  ?

• F23R 3/14 - Aménagements de l'entrée d'air pour l'air primaire créant un tourbillon au moyen d'ailettes de tourbillonnement
• F23R 3/34 - Alimentation de différentes zones de combustion
• F23R 3/36 - Alimentation en combustibles différents

Abrégé

A premixer injector assembly in a gas turbine engine includes at least one premixer injector. The premixer injector includes a fuel tube having a fuel feed passage enclosed by an outer surface, a plurality of fins coupled to the fuel tube extending from the outer surface of the fuel feed passage, the outer surface of the fuel feed passage between adjacent fins having a concave shape, a plurality of mixing channels defined between adjacent fins, a plurality of fuel injection apertures disposed along the fuel feed passage to direct fuel from the fuel feed passage to the mixing channels, an air tube coupled to the fuel tube to at least partially enclose the fuel tube, and a plurality of air injection openings arranged along the air tube to inject air to the mixing channels.

Classes IPC  ?

• F23R 3/14 - Aménagements de l'entrée d'air pour l'air primaire créant un tourbillon au moyen d'ailettes de tourbillonnement
• F23R 3/28 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par l'alimentation en combustible

Abrégé

There is provided a method and a device for producing CO from CO2, wherein the reaction proceeds via a formate of the formula HNRiR2H+ HCO2- and/or an amide of the formula HCONR1R2, Ri and R2 being the same or different and being selected from hydrogen and substituted and unsubstituted alkyl groups having 1 to 20 C atoms.

Classes IPC  ?

• C01B 32/40 - Oxyde de carbone

Abrégé

The invention relates to a method for arranging an electrochemically active element (10) on a fastening device which has a first holder (12) with at least one cylindrical spacing element (16) and has a second holder (14) with at least one cylindrical spacing element (18), comprising at least the steps: a) providing an electrochemically active element (10) whose electrolyte side (20) can be arranged to adjoin an electrolyte chamber (24) and whose gas side (22) can be arranged to adjoin a gas chamber (26) of an electrochemical cell; b) arranging the at least one spacing element (16) of the first holder (12) on the gas side (22) and arranging the at least one spacing element (18) of the second holder (14) on the electrolyte side of the electrochemically active element (10), the at least one spacing element (18) on the electrolyte side (20) being aligned axially with respect to the at least one spacing element (16) on the gas side (22). The invention furthermore relates to an electrochemical cell (30) in which an electrochemically active element (10) is arranged on a fastening device.

Classes IPC  ?

• C25B 1/00 - Production électrolytique de composés inorganiques ou de non-métaux
• C25B 1/23 - Oxyde de carbone ou gaz de synthèse
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
• C25B 9/63 - Supports d'électrodesPositionnement des électrodes

Abrégé

The invention relates to methods for protecting an electrolysis stack from corrosion, a method for transporting an electrolysis stack, and an electrolysis stack.

Classes IPC  ?

• C25B 1/23 - Oxyde de carbone ou gaz de synthèse
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 9/75 - Assemblages comprenant plusieurs cellules du type filtre-presse avec une électrode bipolaire
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 15/00 - Conduite ou entretien des cellules

Abrégé

An auxetic (NPR) structure includes a plurality of vertical intersecting dimpled sheets, each dimpled sheet exhibiting a negative Poisson's ratio, each dimpled sheet intersects two adjacent dimpled sheets creating a rectangular tubular structure, and having a portion of each dimpled sheet projecting outward from its intersection with an adjacent dimpled sheet, the amplitude of each dimple on the plurality of dimpled sheets is such that no overhanging surface of the dimpled sheet exceeds an angle threshold for printability without support structures.

Classes IPC  ?

• B22F 5/04 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser d'aubes de turbines
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B22F 10/40 - Structures destinées à soutenir des pièces ou des articles pendant la fabrication et retirées par la suite
• B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
• B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• F01D 5/14 - Forme ou structure

Abrégé

The invention relates to an anode-side half cell (38) for an electrochemical cell (10) of an electrolytic apparatus (12) for carbon dioxide electrolysis and/or carbon monoxide electrolysis, having - a separator (24) in the form of a diaphragm, which has an anode-side separator surface (40) and a cathode-side separator surface (42) opposite the anode-side separator surface (40), - a catalyst layer (44), which has a first catalyst surface (46) and a second catalyst surface (48) opposite the first catalyst surface (46), the first catalyst surface (46) facing the anode-side separator surface (40), and - a fluid-permeable anode plate (50), which has a first anode surface (52), the first anode surface (52) facing the second catalyst surface (48).

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 1/23 - Oxyde de carbone ou gaz de synthèse
• C25B 3/03 - Hydrocarbures acycliques ou cycliques
• C25B 3/25 - Réduction
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 11/031 - Électrodes poreuses

Abrégé

The invention relates to an electrolysis system for electrochemical decomposition of water to afford hydrogen and oxygen comprising at least one electrolyzer for electrochemical decomposition of water to afford hydrogen and oxygen. The electrolysis system further comprises a housing apparatus for accommodating the electrolyzer, wherein the electrolyzer is at least partially arranged in the housing apparatus and the housing apparatus is tightly sealed off from a first fluid surrounding the housing apparatus. The electrolyser effects decomposition of water to afford hydrogen and oxygen. The hydrogen and the oxygen are discharged from the housing apparatus.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/05 - Cellules sous pression
• C25B 9/60 - Éléments de structure des cellules

Abrégé

An electrolysis system for breaking down water into hydrogen and oxygen using at least two electrolysis modules, each electrolysis module having at least two electrolytic cells, an electrolytic cell having an anode compartment and a cathode compartment, the anode compartment being separated from the cathode compartment by a proton exchange membrane, and a switching device, which is compatible with direct current, being arranged electrically in parallel with at least one electrolysis module. The electrolysis system is operated by the at least two electrolysis modules. When the available electrical power decreases, at least one switching device is closed. At least one electrolysis module is bridged by the switching device. The number of electrolysis modules which are then operated is reduced by the number of bridged electrolysis modules. When the available electrical power increases, at least one switching device is opened.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
• C25B 9/65 - Dispositifs pour l'alimentation en courantConnexions d'électrodesConnexions électriques intercellulaires
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 15/023 - Mesure, analyse ou test pendant la production électrolytique

Abrégé

A method of disassembling a rotor module (30) of a gas turbine engine (10). The gas turbine engine (10) comprising a rotor output shaft (92). The rotor module (30) comprising a centre-bolt (84), a sleeve (90), at least one rotor stage (56, 58), at least one stator stage (48, 50), a casing (46) and an axis (26). The method comprising the steps: attaching a fixture (102) to the at least one rotor stage (56, 58), attaching the fixture (102) to the casing (46), detaching the centre-bolt (84) from the at least one rotor stage (56, 58), detaching the sleeve (90) from the output shaft (92), attaching the fixture (102) to the sleeve (90), and removing the rotor module (30) and fixture (102) from the rotor output shaft (92). There is also presented a method of assembling the rotor module to the gas turbine engine and the apparatus used for disassembly and assembly.

Classes IPC  ?

• F01D 5/06 - Rotors à plus d'un étage axial, p. ex. du type à tambour ou à disques multiplesLeurs parties constitutives, p. ex. arbres, connections des arbres
• F01D 25/28 - Dispositions pour le support ou le montage, p. ex. pour les carters de turbines

Abrégé

An anchoring unit for a system, the anchoring unit having at least one first insulation layer and at least one second insulation layer. The anchoring unit furthermore includes a support layer for mechanically stabilising the insulation layers, the support layer being arranged between the first insulation layer and second insulation layer. The anchoring unit furthermore includes at east two screws, the screws being oriented in opposition to one another, a first screw being suitable for anchoring to the system and a second screw being suitable for anchoring to an anchor object. A first screw head of the first screw is in direct contact with the support layer. A screw shank of the first screw is arranged at least partially in the first insulation layer. A method includes fastening a system to the anchoring unit.

Classes IPC  ?

• E04B 1/38 - Assemblages pour les constructions du bâtiment en général
• F16B 1/00 - Dispositifs pour assembler des éléments structuraux ou parties de machines ou bien pour empêcher tout mouvement relatif entre eux
• F16M 7/00 - Détails de fixation ou de réglage des bâtis, châssis ou pièces de supports des moteurs sur leurs fondations ou leur baseFixation des parties fixes des moteurs, p. ex. des blocs cylindres
• H01B 17/56 - Corps isolants

Abrégé

Method for generating a photogrammetric corridor map from a set of input images by recovering a respective pose of each image, wherein a pose comprises a position and an orientation information of the underlying camera and following steps are executed: a) Receiving a set of input images, b) Defining a working set, c) Initializing an image cluster: c1) Incrementally recovering pose for images, c2) Computing a similarity transformation transforming the recovered camera positions to the corresponding input camera positions, c3) Applying the similarity transformation to the recovered camera poses in the 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, d2) Adding the image to the cluster by recovering, d3) Performing a GNSS bundle adjustment algorithm, d4) Continuing with step d1), if there remain images in the working set that feature overlap with at least one image already in the cluster; if not, continuing with step e) e) Continuing with step b) if there remain images in the working set; if not, continuing with step f), f) Generating and providing as output the corridor map using the recovered camera poses.

Classes IPC  ?

• G01C 11/00 - Photogrammétrie ou vidéogrammétrie, p. ex. stéréogrammétrieLevers photographiques
• G06T 7/70 - Détermination de la position ou de l'orientation des objets ou des caméras

Abrégé

An electrolysis cell with a cell frame and to a method for producing an electrolysis cell, wherein the cell frame has a stepped inner profile. The inner profile has at least one support surface for receiving a planar component in the cell frame, and the support surface has a recess for a seal. A seal is first placed in the recess, and a membrane-electrode unit, a first gas diffusion layer, and an electrically conductive top layer are then introduced into the cell frame. The cell frame is then rotated, and a second gas diffusion layer is applied. The electrolysis cell produced in this manner includes the cell frame with the seal and the different layers.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
• C25B 9/63 - Supports d'électrodesPositionnement des électrodes

Abrégé

A method for generating an inductive reactive power for a public grid by an electrical load apparatus, in which, in a first operating mode of the electrical load apparatus, an alternating current of the public grid is transformed by a transformer device and the transformed alternating current is provided for an electrical load of the electrical load apparatus. In a second operating mode of the electrical load apparatus that is different from the first operating mode, the transformer device is short-circuited in a phase-controlled manner by a switching device of the electrical load apparatus, wherein the switching device is phase-controlled such that, depending on a phase angle of the phase control of the switching device by the transformed alternating current, the inductive reactive power for the public grid is generated by the switching device.

Classes IPC  ?

• H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux

Abrégé

The invention specifies a method for determining the average distance (v) between a measurement device (3) and a conductor (1), wherein the measurement device (3) has a measurement system (2), wherein an electrical current flows through the conductor (1), thus producing a magnetic field having a magnetic flux density (B[T]), wherein the magnetic flux density (B[T]) has a horizontal component (BH) and a vertical component (BV). The method comprises the following steps: - determining (S1) a profile of the horizontal component (BH) using the horizontal position (h[m]) of the measurement device (3), wherein the horizontal position (h[m]) indicates the orthogonal distance between the measurement device (3) and the longitudinal axis of the conductor (1) parallel to the earth's surface, wherein the profile of the horizontal component (BH) is determined by measuring the horizontal components (BH) at at least two different horizontal positions (h[m]) by means of the measurement system (2) of the measurement device (3), which changes the horizontal position (h[m]), and - determining (S2) a profile of the vertical component (BV), which is associated with the determined profile of the horizontal component (BH), using the horizontal position (h[m]) of the measurement device (3), wherein the profile of the vertical component (BV) is determined by measuring the vertical components (BV) associated with the determined horizontal components (BH) by means of the measurement system (2), - determining (S3) the ratio (M) of the profile of the vertical component (BV) to the profile of the horizontal component (BH) as a function using the horizontal position (h[m]) of the measurement device (3), - determining (S4) the derivative of the ratio (M) according to the horizontal position, - determining (S5) the reciprocal of the derivative, and - determining (S6) the average distance (v) between the measurement devices (3) and the conductor (1) from the reciprocal of the derivative. The invention also specifies a measurement apparatus (3).

Classes IPC  ?

• F17D 5/00 - Protection ou surveillance des installations
• G01B 7/02 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur
• G01B 7/26 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer une profondeur
• G01V 3/08 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection
• G01V 3/10 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection en utilisant des cadres inducteurs
• G01V 3/16 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée à l'utilisation pendant le transport, p. ex. par une personne, un véhicule ou un bateau spécialement adaptée à la prospection aérienne

Abrégé

A method of examining a fuel cell by means of a cyclic voltammetry analysis, wherein the cyclic voltammetry analysis is used to ascertain a gas composition in the fuel cell. The fuel cell has a first gas space for a first reactant and a second gas space for a second reactant, where no reactant is supplied at least to one of the two gas spaces, especially to either gas space, during the cyclic voltammetry analysis. The cyclic voltammetry analysis is used to ascertain a concentration of hydrogen in the gas spaces.

Classes IPC  ?

• H01M 8/0444 - ConcentrationDensité
• H01M 8/04492 - HumiditéHumidité ambianteTeneur en eau
• H01M 8/04955 - Extinction ou arrêt des éléments à combustible
• H01M 8/1018 - Matériaux d’électrolyte polymère

Abrégé

A heatshield for a gas turbine engine. The heatshield comprising 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 and a surface. At least one cooling channel of the array of cooling channels comprising at least one flow disturbing feature extending from the surface and into the cooling channel.

Classes IPC  ?

• F01D 5/08 - Dispositifs de chauffage, de protection contre l'échauffement ou de refroidissement
• F01D 11/18 - Régulation ou commande du jeu d'extrémité des aubes, c.-à-d. de la distance entre les extrémités d'aubes du rotor et le corps du stator par des moyens auto-réglables utilisant des éléments stator ou rotor ayant un comportement thermique déterminé, p. ex. isolation sélective, inertie thermique, dilatation différentielle
• F01D 11/24 - Réglage actif du jeu d'extrémité des aubes par refroidissement ou chauffage sélectifs d'éléments du stator ou du rotor
• F01D 25/12 - Refroidissement
• F02C 7/12 - Refroidissement des ensembles fonctionnels
• F02C 7/24 - Isolation thermique ou acoustique

Abrégé

A water delivery system (18) for delivering water for injection into gas turbine engine combustor (4) includes a centrifugal pump (19) and a metering valve (23). The centrifugal pump (19) has an inlet (20) connected to a water source and a discharge (21) connected to a water supply line (22). The metering valve (23) is connected to the water supply line (22) downstream of the discharge (21) of the centrifugal pump (19). The water supply line (22) is connected to an injector nozzle (14) downstream of the metering valve (23). The metering valve (23) is operable to regulate a flow rate of water in the water supply line (22), to thereby meter an amount of water supplied to the injector nozzle (14).

Classes IPC  ?

• F02C 3/30 - Addition d'eau, de vapeur ou d'autres fluides aux composants combustibles ou au fluide de travail avant l'échappement de la turbine
• F02C 9/40 - Commande de l'alimentation en combustible spécialement adaptée à l'utilisation d'un combustible particulier ou de plusieurs combustibles
• F04D 1/12 - Pompes avec des godets ou organes d'agitation analogues pénétrant dans le fluide circulant dans un bol
• F23D 11/00 - Brûleurs à pulvérisation directe de gouttelettes de liquide ou de liquide vaporisé dans l'enceinte de combustion
• F23L 7/00 - Alimentation du foyer en liquides ou gaz non combustibles autres que l'air, p. ex. oxygène, vapeur d'eau

Abrégé

A heatshield for a gas turbine engine, comprising 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 heatshield having a leading hook and a trailing hook each extending between the lateral edges, the leading hook and the trailing hook extending from the second surface. A stiffening structure extending from the leading hook to the trailing hook and free from direct contact or attachment to the second surface.

Classes IPC  ?

• F01D 11/18 - Régulation ou commande du jeu d'extrémité des aubes, c.-à-d. de la distance entre les extrémités d'aubes du rotor et le corps du stator par des moyens auto-réglables utilisant des éléments stator ou rotor ayant un comportement thermique déterminé, p. ex. isolation sélective, inertie thermique, dilatation différentielle
• F01D 11/24 - Réglage actif du jeu d'extrémité des aubes par refroidissement ou chauffage sélectifs d'éléments du stator ou du rotor
• F01D 25/12 - Refroidissement
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations
• F02C 7/12 - Refroidissement des ensembles fonctionnels
• F02C 7/24 - Isolation thermique ou acoustique

Abrégé

An investment casting core (10) incorporates an alignment guide (24) extending through a body (12) of the core. The alignment guide (24) defines a coolant flow path (92) in a later-cast metal component (76) extending from a coolant outlet opening (90) in an impingement structure (88) to an impingement target area (86) of a cooling feature (84) formed on an impingement cooled surface (82) of the component (76). Methods of making the core (10) and using the core (10) in lost wax investment casting processes are also described.

Classes IPC  ?

• B22C 7/02 - Modèles perdus
• B22C 9/10 - NoyauxFabrication ou mise en place des noyaux
• B22C 9/24 - Moules pour pièces de forme particulière pour pièces évidées

Abrégé

A method for monitoring the operating state of high-voltage devices of an energy supply network includes using sensors on orin the high-voltage devices to capture measured values. Themeasured values or values derived therefrom are transmitted to communication units via short-range communication connection. Access data are transmitted to a data processing cloud at a querytime. The data processing cloud selects communication unitsdependent on the access data and connects to selected communication units via long-range communication connection. The measured values and/or values derived therefrom are transmitted from the selected communication units to the dataprocessing cloud via the long-range connection. The dataprocessing cloud uses the measured values and/or values derived therefrom for generating a visualization displaying the operating state of the high-voltage devices connected to at least one of the selected communication units via the short-range connection.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau

Abrégé

A device for reactive power compensation in a high voltage network having at least one phase conductor, includes a high voltage connection for each phase conductor, first and second core sections of a closed magnet circuit, a first high voltage winding enclosing the first core section, a second high voltage winding enclosing the second core section and being connected parallel to the first high voltage winding, at least one saturation switching branch being configured to saturate at least one core section has controllable power semiconductor switches, and a control unit controls the power semiconductor switches for each high voltage connection. In order to avoid leakage field losses, at least one high voltage winding has a central connection and is connected at its winding ends to the saturation switching branch. The central connection is connected to the high voltage connection.

Classes IPC  ?

• H01F 29/14 - Transformateurs ou inductances variables non couverts par le groupe à polarisation magnétique variable
• H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
• H02P 13/12 - Dispositions de commande de transformateurs, réactances ou bobines d'arrêt de façon à obtenir les caractéristiques désirées à la sortie par variation de la polarisation magnétique

Abrégé

CA 03117871 2021-04-27880757907ABSTRACTA method for operating a forced-flow steam generator constructed as a waste-heat steam generator having a pre- heater, including pre-heater heating surfaces, and having an evaporator including evaporator heating surfaces connected downstream on the flow medium side of the pre-heater heating surfaces. A device for adjusting a feed water mass flow has a set point for the feed water mass flow. During the creation ofthe set point for the feed water mass flow, a waste-heat flow transferred to a fluid in the evaporator heating surfaces is determined, and mass storage and energy storage in the fluid in the evaporator heating surfaces is detected during non-steady-state plant operation. A behaviour over time of a mass storagein the evaporator is coupled with a behaviour over time of a mass storage in the pre-heater, wherein scaling is carried out with a ratio of the density changes in the evaporator and pre-heater.Date Recue/Date Received 2021-04-27

Classes IPC  ?

• F22B 29/06 - Chaudières à vapeur du type à circulation forcée du type à circulation ouverte, c.-à-d. composées de tubes admettant de l'eau à une extrémité et dégageant de la vapeur surchauffée à l'autre extrémité
• F22B 35/12 - Systèmes de commande pour chaudières à vapeur pour chaudières à vapeur du type à circulation forcée du type à circulation ouverte fonctionnant à une pression critique ou hypercritique
• F22D 5/30 - Systèmes automatiques de commande de l'alimentation sensibles à la fois au niveau d'eau et à la quantité prélevée de vapeur ou à la pression de la vapeur
• F22D 5/34 - Utilisation de vannes

Abrégé

A device is for reactive power compensation in a high-voltage network having a phase conductor. The device has a first high-voltage terminal, which is configured to be connected to the phase conductor. For each first high-voltage terminal, a first and a second core section, which are part of a magnetic circuit, a first high-voltage winding, which encloses the first core section, and a second high-voltage winding are provided. Moreover, the device has a saturation switching branch, which saturates the core sections and has controllable power semiconductor switches. A control unit is used to control the power semiconductor switches. The first and the second high-voltage windings are connected by the high-voltage end to the associated first high-voltage terminal and on the low-voltage side can be connected to one or the saturation switching branch. To be able to be connected in series into the high-voltage network, a second high-voltage terminal is provided.

Classes IPC  ?

• H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux

Abrégé

An electrolysis unit and to a method for electrochemically decomposing water into hydrogen and oxygen. The electrolysis unit has at least two electrolysis modules. The electrolysis unit also has exactly one first gas separation device for a first product gas including oxygen and exactly one second gas separation device for a second product gas including hydrogen. The first gas separation device is connected to the at least two electrolysis modules by respective first lines. The second gas separation device is connected to the at least two electrolysis modules by respective second lines. The at least two first lines have the same first length. The at least two second lines likewise have the same second length.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

A potential equalization system for a modular multi-level converter. The converter has a plurality of converter modules and each of the modules has a direct current source. The potential equalization system includes pole contacts, which are each electrically connected to one pole of a direct current source, and at least one electrically conductive contacting element, which can be moved between a first end position in which the contacting element is electrically isolated from the converter modules and a second end position in which the contacting element contacts pole contacts of different direct current sources and can be put on ground potential.

Classes IPC  ?

• H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs
• H02B 1/16 - Dispositions pour la mise à la terre
• H02B 13/075 - Dispositions pour la mise à la terre
• H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
• H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques

Abrégé

In order to create a full variable shunt reactor having two magnetically controllable high-voltage throttles which is compact and at the same time can also provide capacitive reactive power, auxiliary windings are used which are inductively coupledto the high-voltage throttles. The auxiliary windings areconnected to at least one capacitively acting component.

Classes IPC  ?

• G05F 1/38 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type alternatif utilisant des dispositifs magnétiques à degré de saturation réglable comme dispositifs de réglage final associés à des tubes à décharge ou à des dispositifs à semi-conducteurs à dispositifs à semi-conducteurs uniquement
• H01F 29/14 - Transformateurs ou inductances variables non couverts par le groupe à polarisation magnétique variable
• H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
• H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
• H02P 13/12 - Dispositions de commande de transformateurs, réactances ou bobines d'arrêt de façon à obtenir les caractéristiques désirées à la sortie par variation de la polarisation magnétique

Abrégé

The invention relates to a method for monitoring an electrical assembly (1) which comprises a plurality of electrical coils (L1, L2, L3) connected in parallel. In the method, the difference in current (?I1, ?I2, ?I3) between the current (I1, I2, I3) flowing through the coils and the mean value (lav) of the currents (I1, I2, I3) flowing through the coils is ascertained for each of the coils (L1, L2, L3) connected in parallel. The differences in current (?I1, ?I2, ?I3) are used to identify when an inter-turn short circuit occurs in one of the coils.

Classes IPC  ?

• H02H 3/04 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec signalisation ou supervision additionnée à la déconnexion, p. ex. pour indiquer que l'appareil de protection a fonctionné
• H02H 3/44 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles aux taux de variation de quantités électriques
• H02H 7/04 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour transformateurs

Abrégé

87278243ABSTRACTA capacitor bank (1) which has a plurality of capacitor units (C1 _ C12), in which each capacitor has a plurality of electrical capacitor elements (CE1 _ CEm), and the capacitor units (C1 _ C12) are divided into a plurality of groups of capacitor units (C1 _ C4, C5 _ C8, C9 _ C12). The arrangement has a plurality of group monitoring units (52, 64, 68), with one of the group monitoring units (52, 64, 68) associated with each group of capacitor units (C1 _ C4, C5 _ C8, C9 _ C12). Atleast one of the group monitoring units (52) is configured so that it monitors the respective group of capacitor units (C1 _ C4) for a failure of a capacitor element (CE1 _ CEm) in one of the capacitor units (C1 _ C4) of the group and, when such a failure of a capacitor element (CE3) is detected, transmits data which describe this failure of the capacitor element (CE3) to a monitoring receiver (72).Date Recue/Date Received 2020-12-07

Classes IPC  ?

• G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
• H01G 2/16 - Protection contre la surcharge électrique ou thermique avec des éléments fusibles
• H01G 4/38 - Condensateurs multiples, c.-à-d. combinaisons structurales de condensateurs fixes
• H01G 4/40 - Combinaisons structurales de condensateurs fixes avec d'autres éléments électriques non couverts par la présente sous-classe, la structure étant principalement constituée par un condensateur, p. ex. combinaisons RC
• H01G 9/00 - Condensateurs électrolytiques, redresseurs électrolytiques, détecteurs électrolytiques, dispositifs de commutation électrolytiques, dispositifs électrolytiques photosensibles ou sensibles à la températureProcédés pour leur fabrication
• H01G 9/26 - Combinaisons structurales de condensateurs électrolytiques, de redresseurs électrolytiques, de détecteurs électrolytiques, de dispositifs de commutation électrolytiques, de dispositifs électrolytiques photosensibles ou sensibles à la température les uns avec les autres
• H01G 9/28 - Combinaisons structurales de condensateurs électrolytiques, de redresseurs électrolytiques, de détecteurs électrolytiques, de dispositifs de commutation électrolytiques, avec d'autres composants électriques non couverts par la présente sous-classe
• H01G 11/10 - Condensateurs hybrides ou condensateurs EDL multiples, p. ex. réseaux ou modules
• H01G 11/16 - Agencements ou procédés de réglage ou de protection des condensateurs hybrides ou EDL contre les surcharges électriques, p. ex. comprenant des fusibles
• H02H 7/16 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour capacités

Abrégé

A rotor balancing method for a gas turbine is provided. The method comprises providing a rotor (100) comprising a first correction plane (152) and a second correction plane (154), wherein a first balancing weight (W1) is attached to the first correction plane (152). The method comprises performing a first influence run. The first balancing weight W1 remains fitted for the subsequent second influence run. The method comprises fitting a first calibration weight (M1) to the second correction plane (154) using a reference influence vector. The method comprises performing a second influence run. The method comprises removing the first calibration weight (M1) from the rotor (100) and calculating an influence vector of the second correction plane (154) using a first set of vibration measurements and a second set of vibration measurements taken during the first influence run and the second influence run, respectively. The method comprises carrying out balancing of the rotor by fitting a final balancing weight (W1') to the first correction plane (152) and a second balancing weight (W2) to the second correction plane (154) using the calculated influence vectors.

Classes IPC  ?

• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• G01M 1/22 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation et en convertissant les vibrations dues au balourd en variables électriques
• G01M 1/32 - Compensation du balourd par addition de matière à l'objet à tester, p. ex. par poids correcteurs

Abrégé

A rotor balancing method comprises: mounting first and second bearings on first and second pedestals; performing a base run by; carrying out partial balancing and a first influence run of the rotor by: fitting a first balancing weight to the first correction plane; performing a first influence run by: running the rotor at a speed and measuring the vibrations at the first and second pedestals, leaving the first balancing weight fitted; performing a second influence run by: fitting a first calibration weight to the second correction plane, running the rotor at the speed and measuring the vibrations at the first and second pedestals, and removing the first calibration weight; carrying out final balancing of the rotor by: fitting a final balancing weight to the first correction plane and a second balancing weight to the second correction plane dependent on the vibrations measured in the first and second influence runs.

Classes IPC  ?

• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• G01M 1/02 - Détails des machines ou dispositifs d'équilibrage
• G01M 1/22 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation et en convertissant les vibrations dues au balourd en variables électriques
• G01M 1/32 - Compensation du balourd par addition de matière à l'objet à tester, p. ex. par poids correcteurs

Abrégé

The invention relates to a grid influencing system of an electricity grid (4), comprising a current-conducting grid influencing component (6) and a short-circuiting device (8) that includes a circuit breaker (10). The invention in characterized in that the circuit breaker (10) is a vacuum circuit breaker having a vacuum circuit breaker tube that includes an at least partly integrated pre-arcing unit (12) for actively generating an arc (14) between two contacts (19, 34).

Classes IPC  ?

• H01H 33/664 - ContactsMoyens d'extinction d'arcs, p. ex. anneaux de garde
• H01H 79/00 - Interrupteurs de protection dans lesquels un courant excessif provoque la fermeture des contacts, p. ex. pour court-circuiter l'appareil à protéger
• H01J 21/04 - Tubes à voie de décharge unique sans moyens de commande, c.-à-d. diodes
• H01J 21/08 - Tubes à voie de décharge unique pourvus de moyens de commande exclusivement électrostatiques à électrodes mobiles
• H01T 2/00 - Éclateurs comportant des moyens de déclenchement auxiliaires
• H01T 21/06 - Ajustage des éclateurs
• H02H 9/04 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de tension

Abrégé

A rotor shaft cap (300) for a gas turbine, comprising: a disk-shaped body (310) defining: a first axial face (312), a second axial face (314), and an outer radial face (316), the disk-shaped body (310) comprising: a first annular jaw (330) provided on the first axial face (312), the first annular jaw (330) comprising a plurality of teeth (332) projecting from the first axial face (312); a plurality of apertures (340) defined by the disk-shaped body (310), each aperture (342, 344, 346) of the plurality of apertures (340) extending through the disk-shaped body (310) along an axial direction (30).

Classes IPC  ?

• F01D 5/02 - Organes de support des aubes, p. ex. rotors

Abrégé

A circuit arrangement and to a method for operating the circuit arrangement, particularly a circuit arrangement for the DC power supply of a plurality of parallel electrolysers, where the circuit arrangement has a rectifier which converts an input-side alternating voltage into an output-side first DC voltage. Each electrolyser is respectively connected in parallel to the output of the rectifier by a down converter converting the first DC voltage into a second DC voltage such that the second DC voltage drops over the electrolyser. Each of the down converters is controllable and/or regulatable in order to adapt the level of the second direct voltage.

Classes IPC  ?

• C25B 9/65 - Dispositifs pour l'alimentation en courantConnexions d'électrodesConnexions électriques intercellulaires
• C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
• C25B 15/02 - Commande ou régulation des opérations
• H02M 7/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques

Abrégé

A device for reactive power compensation in a high-voltage network contains a phase conductor. A high-voltage connection is provided for each phase of the high-voltage network. Each high-voltage connection is connected to a first high-voltage winding which surrounds a first core portion and to a second high-voltage winding which surrounds the second core portion. The core portions are part of a closed magnetic circuit. The low-voltage ends of each high-voltage winding can be connected to at least one saturation switching branch configured to saturate the core portions and has actuatable power semiconductor switches controlled by a control unit. To manufacture the device inexpensively, each saturation switching branch has a two-pole submodule having a bridge circuit and a DC voltage source so that, depending on the actuation of the power semiconductor switches, the DC voltage source can either be connected in series to the high-voltage winding or can be bridged.

Classes IPC  ?

• H01F 29/14 - Transformateurs ou inductances variables non couverts par le groupe à polarisation magnétique variable
• H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux

Abrégé

The invention relates to a core for a transformer. Said core comprises a multiplicity of bent metal sheets bonded together to form a structure surrounding a core opening and forming the core. Said metal sheets comprise sheet ends not touching one another within the core, causing the core with said metal sheets to form at least one air gap at said sheet ends within the core or at a periphery of the core. Said air gap forms magnetic resistance that increases with the width of said air gap. This causes no-load losses. An object of the invention is to minimize those no-load losses in the transformers through the lowest possible magnetic resistances. A lacquer is provided which contains magnetic particles. Said lacquer impregnates or coats the core at least at said sheet ends of said metal sheets and fills each air gap between said sheet ends of said metal sheets.

Classes IPC  ?

• H01F 3/02 - Noyaux, culasses ou induits en feuilles
• H01F 27/245 - Noyaux magnétiques fabriqués à partir de tôles, p. ex. à grains orientés
• H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants

Abrégé

A controller (600) for a gas turbine (100) is described. The gas turbine (100) comprises the compressor (101) arranged to operate at a rotational speed n, the combustor (102) and the fuel supply means (127) comprising the first fuel supply means and the second fuel supply means, wherein the compressor (101) is arranged to provide air to the combustor (102) at a steady state air mass flow rate mss and wherein the fuel supply means (127) is arranged to supply fuel at a fuel mass flow rate mtotal to the combustor (102). The controller (600) is arranged to, responsive to a load change ?L to the load L, control the compressor (101) to provide air to the combustor (102) at a new air mass flow rate m TR , wherein the new air mass flow ratem TR is within a range between a first threshold m LBO and a second threshold m SUR .

Classes IPC  ?

• F02C 9/16 - Commande du débit du fluide de travail
• F02C 9/28 - Systèmes de régulation sensibles aux paramètres ambiants ou à ceux de l'ensemble fonctionnel, p. ex. à la température, à la pression, à la vitesse du rotor
• F02C 9/50 - Commande de l'alimentation en combustible combinée avec une autre commande de l'ensemble fonctionnel avec la commande du flux du fluide de travail

Abrégé

A controller (700) for a gas turbine (100) is described. The gas turbine (100) comprises the compressor (101) arranged to operate at a rotational speed n, the combustor (102) and the fuel supply means (127) comprising the first fuel supply means and the second fuel supply means, wherein the compressor (101) is arranged to provide air to the combustor (102) at a steady state air mass flow rate mss and wherein the fuel supply means (127) is arranged to supply fuel at a fuel mass flow rate m total to the combustor (102). The controller (700) is arranged to, responsive to the load change ?L to the load L, control the fuel supply means to supply a proportion Z of the fuel mass flow rate m total as a fuel mass flow rate m fuel pilot via the first fuel supply means based, at least in part, on a combustor mass flow rate m t.

Classes IPC  ?

• F02C 9/28 - Systèmes de régulation sensibles aux paramètres ambiants ou à ceux de l'ensemble fonctionnel, p. ex. à la température, à la pression, à la vitesse du rotor
• F02C 9/34 - Commande combinée des débits des alimentations séparées des brûleurs principaux et secondaires
• F02C 9/50 - Commande de l'alimentation en combustible combinée avec une autre commande de l'ensemble fonctionnel avec la commande du flux du fluide de travail

Abrégé

An electric device, for example a track transformer, connects to a high-voltage line. The electric device has a magnetizable core, at least one winding which is arranged in the vicinity of the core, and a housing which is filled with an insulating fluid and in which at least one winding is arranged. The core is arranged at least partly outside of the housing. In order to allow a stable mounting of a core formed of two halves, the core is arranged completely between two opposing pressing plates, between which tension elements for clamping the core extend.

Classes IPC  ?

• H01F 27/02 - Enveloppes
• H01F 27/06 - Montages, supports ou suspensions de transformateurs, réactances ou bobines d'arrêt
• H01F 27/245 - Noyaux magnétiques fabriqués à partir de tôles, p. ex. à grains orientés
• H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
• H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments

Abrégé

A method and controller for controlling electrical activation of elements in a system. A method includes identifying (710) a first element (102) of a system (100) by a control system (600), among a plurality of elements (102, 110, 122) of the system (100), that is to be powered. The method includes determining (712) connected elements (1 10, 122) of the system (100) by the control system (600). The connected elements (110, 122) are connected to deliver power to the first element (102) directly or indirectly, based on an adjacency matrix (400), and the adjacency matrix (400) identifies connections between each of plurality of elements of the system (100). The method includes identifying (714) at least one of the connected elements (110, 122) to activate by the control system (600), based on the adjacency matrix (400), a health table (500), and the connected elements (1 10, 122), to deliver power to the first element (102). The method includes activating (716) the at least one of the connected elements (1 10, 122) by the control system (600), thereby delivering power to the first element (102).

Classes IPC  ?

• G05B 15/02 - Systèmes commandés par un calculateur électriques
• G06Q 50/06 - Fourniture d’énergie ou d’eau
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

A controller (300) for a gas turbine engine (10) which operates to a control method. The gas turbine engine (10) comprises a compressor (14) having a casing (50) which extends along, and is centred on, an operational axis (20). An array (48) of compressor blades are coupled to a rotatable engine shaft (22) which extends along the operational axis (20). A first variable guide vane (8a) is axially spaced apart from the compressor blade array (48) along the operational axis (20), wherein the first variable guide vane (8a) is rotatably mounted at a first location (202) on the casing (50), having a vane axis of rotation (121) at right angles to the operational axis (20). The first variable guide vane (8a) is coupled to an adjustment drive (154) operable to rotate the first variable guide vane (8a) about its axis of rotation (121) to a range (A-D) of angles relative to the operational axis (20). The controller (300) is operable to control the rotation of the first variable guide vane (8a) in dependence of engine shaft speed wherein over a first range (A-B) of engine shaft speed the angle of the first variable guide vane (8a) relative to the operational axis (20) decreases with increasing engine speed and over a second range (B-C) of engine shaft speeds the angle of the first variable guide vane (8a) relative to the operational axis (20) : increases with increasing engine speed.

Classes IPC  ?

• F02C 7/057 - Commande ou régulation
• F02C 9/20 - Commande du débit du fluide de travail par étranglementCommande du débit du fluide de travail par réglage des aubes