Siemens Energy Patente

A method for operating an electrolysis system (2) is provided. The method comprises an electrolyzer (6), a transformer (3), and a rectifier (4, 5), wherein the transformer (3) receives an electrical AC power from an electrical grid (104) and provides an AC power (AC) output to the rectifier (5), wherein the rectifier (5) converts the AC power output (AC) into a DC power input (P1) for the electrolyzer (6), the method further comprising i), identifying begin-of-life (BOL) parameters for an electrolyzer stack (6) based on a measurement, wherein a linear dependency between a DC voltage (Udc<bol>) and a related DC current (Idc) is determined, ii), identifying end-of-life (EOL) parameters for the electrolyzer stack (6) based on a theoretical assumption, wherein a linear dependency between a DC voltage (Udc<eol>) and the related DC current (Idc) is determined, and iii) deriving a polarization curve of an actual ageing status (M) of the electrolyzer stack based on the identified parameters (BOL, EOL), wherein the derived polarization curve is used for determining of a new DC power input (P2) based on a new AC power setpoint requested from a grid operator. Moreover, a related power supply, a controller, a computer program and a related electrolyzer system are provided.

The invention concerns an electrolyzer (10) comprising several layers (14, 16, 18) arranged as a stack (12), a first gasket (20) being part of one of the several layers (14, 16, 18), having a base plate (22) with a recess (24), a first elastomer sealing (26) connected to the base plate (22) of the first gasket (20) in such that it frames the recess (24) of said base plate (22), a second gasket (30) being part of a further of the several layers (14, 16, 18) and having a base plate (22) with a recess (24) and a second elastomer sealing (36) connected to the base plate (22) of the second gasket (30) in such that it frames the recess (24) of said base plate (22), wherein said first elastomer sealing (26) has a larger thickness than said second elastomer sealing (36).

The present invention relates to a method (100) for operating an electrolysis system (1) and an electrolysis system (1). The electrolysis system (1) has multiple electrolysis modules (8) connected to a power grid (4) via a central transformer unit (2) and multiple rectifier units (6). A source voltage provided at the central transformer unit (2) and a control variable in a control system (12) of the rectifier units (6) are monitored (S1, S2), wherein said control variable is associated with the firing angles of said rectifier units (6). When the monitored source voltage fulfils a source voltage intervention criterion and/or the monitored control variable fulfils a control variable intervention criterion, the rectifier units (6) are operated (S4) with a constant firing angle.

Method of operating an electrolysis system, control unit to control an electrolysis system, electrolysis system with such a control unit, computer program product and a computer-readable storage mediumMethod of operating an electrolysis system (2) wherein the method comprising the step of:(S100) providing a first control signal (CS1) to open switches of a switching unit (12) in order to disconnect the electrolysis system (2) from a grid 4, and(S200) providing an electrical current (I0) in order to pre-magnetise a transformer (8a, 8b) of the electrolysis system (2), wherein the electrical current is provided by a DC-source (14a, 14b).

A multipowered electrolysis facility (2) having a power balance unit (6) that receives incoming power from a power source (4) and manages electron flow (8) from the power source (4); a first electrolysis unit (10) that receives the managed electron flow (8) from the power balance unit (6), and is individually attuned and cooperatively integrated to operate at a first power range of 10-500 MW; a second electrolysis unit (12) that receives the managed electron flow (8) from the power balance unit (6), and is individually attuned and cooperatively integrated to operate at a second power range of 10-500 MW; a cooling/heating unit (20) operatively connected to the electrolysis units (10, 12) to provide coolant/heated flow from the cooling/heating unit (20) to the electrolysis units (10, 12) for efficient electrolysis within the electrolysis units (10, 12); and a fluid purification unit (30) operatively connected to the electrolysis units (10, 12) to provide purified fluid flow from the purification unit (30) to the electrolysis units (10, 12) for efficient electrolysis within the electrolysis units (10, 12), whereby the electrolysis units (10, 12) produce hydrogen (40) and oxygen (42) that each may be made use of, stored, transported, discarded or otherwise.

Die Erfindung betrifft einen Stromrichterturm (1) mit einer Mehrzahl von Stromrichtermodulen (3), mit einer Mehrzahl von elektrischen Verbindungsleitern (9), von denen jeweils ein Verbindungsleiter (9) je zwei der Stromrichtermodule (3) miteinander oder eines der Stromrichtermodule (3) mit einer Anschlussleitung (11) des Stromrichterturms (1) verbindet. Um Emissionen auf einfache Weise wirksam zu unterbinden, ist erfindungsgemäß vorgesehen, dass wenigstens einer der elektrischen Verbindungsleiter (9) mit einer elektromagnetischen Entstörvorrichtung (13) versehen ist.

The invention is about an electrochemical energy conversion system (1), with electrochemical cells (2), each electrochemical cell (2) comprising a membrane electrode assembly (3) arranged between a cathodic gas diffusion layer (4) and an anodic gas diffusion layer (5) and on front sides (6) surrounded by a frame (7) and enclosed between bipolar plates (8), the electrochemical cells (2) being compressed between first and second end plates (9, 10) by means of tie rods (11), wherein a pressure unit (12) is arranged between the second end plate (10) and a third end plate (13) opposite the first end plate (9) in relation to the second end plate (10), the pressure unit (12) comprising a piston (14) that acts on the electrochemical cells (2) through an opening (15) in the second end plate (10) and the directly neighbouring bipolar plate (8), the piston (14) having an attachment (16) for different pressure profiles.

Method of operating an electrolysis system (2) where-in the method comprising the steps of:(S100) reading in a signal (S) for a faulty stack (12),(S200) providing a control signal (CS1) in order to bypass the faulty stack (12),(S300) providing a second control signal (CS2) in order to provide a first voltage adapted to the n-1 row (6b) with the faulty stack (12), and(S400) providing a third control signal (CS3) in order to provide a second voltage adapted to the n row (6a) without the faulty stack (12).

The invention relates to an electrolysis system (1) and a corresponding method. The electrolysis system (1) comprises an electrolyzer (2) and a converter system (3) comprising a plurality of converters (4). The electrolyzer (2) is adapted to produce an energy carrier by means of the direct current electrical power input (6) from the converter system (3) at an electrolyzer operating power which is less than or equal to a maximum converter system power capacity of the converter system (3). The respective converter (4) of the converter system (3) has a converter power capacity which partially corresponds to the maximum power capacity of the converter system (3). For improving the service life of the converter system (3), the converter system (3) is adapted to operate by means of a subset of the plurality of converters (4) if the electrolyzer operating power is less than the maximum converter system power capacity.

A method of designing a support structure (1) for powder bed fusion additive manufacturing is presented, the support structure (1) comprising a triply periodic minimal surface (TPMS), wherein the method makes use of a lattice optimization algorithm (LO), with a lattice cell size (1) as an optimization variable, wherein an absolute lattice feature size (t) is chosen as a design constant, and a relative lattice feature size (t') is taken as a model function depending on a lattice volume fraction (ξ), the method further comprising adjusting a lattice volume fraction (ξ) within the optimization routine. Moreover, a support structure manufactured by a related additive manufacturing method and a related computer program are provided.

A gas conduit (58) is constructed and arranged to feed a gas (42) into an active area (50) of an electrolysis cell (12) within a stack (14) in sufficient quantity to function as an electrical insulator and reduce an electric current at an entry (52) of the active area (50) and thereby more closely balance the current at the entry (52) of the active area (50) with the current at an exit (54) of the active area (50). Also, an electrolysis-mixed stack configuration (10) is provided having a plurality of electrolytic cells (12) forming an electrolysis stack (14), a pump (20) in fluid communication with a hydrogen-side phase separator (22) in fluid communication with a heat exchanger (24) in fluid communication with a hydrogen-side recycle blower (26); where the electrolysis stack (14) is shared with an oxygen-side (16) having a pump (20) in fluid communication with an oxygen-side phase separator (32) in fluid communication with the heat exchanger (24) in fluid communication with the oxygen-side recycle blower (36); wherein hydrogen (42) is generated.

The invention is about a method for controlling an electrolysis system (1) comprising a transformer unit (2), rectifier units (3) operating in parallel, and electrolysis module rows (4) with hydrogen and oxygen sides (5, 6) connected at DC sides (7) of the rectifier units (3), the method comprising: - detecting a Fault Ride Through event; and - adjusting the ramp-up rate of a DC current considering a current position of control valves (8) on the hydrogen and oxygen sides (5, 6).

A gas inlet conduit (58) is constructed and arranged to feed a gas (42) into an active area (50) of an electrolysis cell (12) within a stack (14) in sufficient quantity to function as an electrical insulator and reduce an electric current at an entry (52) of the active area (50) and thereby more closely balance the current at the entry (52) of the active area (50) with the current at an exit (54) of the active area (50). Also, an electrolysis-separated stack configuration (10) is provided having a plurality of electrolytic cells (12) forming an electrolysis stack (14), a hydrogen-side pump (20) in fluid communication with a hydrogen-side phase separator (22) in fluid communication with a hydrogen-side heat exchanger (24) in fluid communication with a hydrogen-side recycle blower (26); where the electrolysis stack (14) is shared with an oxygen-side pump (30) in fluid communication with an oxygen-side phase separator (32) in fluid communication with an oxygen-side heat exchanger (34) in fluid communication with the oxygen-side recycle blower (36); wherein hydrogen (42) is generated.

Method of operating an electrolysis system, rectifier control unit to control an electrolysis system, electrolysis system with such a rectifier control unit, computer program product and a computer-readable storage mediumMethod of operating an electrolysis system (2) after a fault ride through, the method comprising the step of:setting a firing angle (Alpha-ref) to a value less than 90° and/or choosing the firing angle (Alpha-ref) such that the result will be a measured DC current (Idc_meas) of the electrolysis system greater than a predetermined value (PV1), preferable zero.

A fiber termination arrangement for terminating an optical line includes an outer housing having a first end, a second end, a first groove, a second groove, and an opening that extends in an axial direction between the first end and the second end. A sheath seal is positioned within the opening and includes a first sheath seal member having a first contact surface arranged to sealingly engage an outer sheath, and a first head member sealingly positioned within the first groove, and a second sheath seal member having a second contact surface arranged to sealingly engage the outer sheath, and a second head member sealingly positioned within the second groove. A tube seal is positioned within the opening and includes a first tube seal member having a first tube seal surface arranged to sealingly engage a tube, and a second tube seal member having a second tube seal surface arranged to sealingly engage the tube. A sheath end cap is coupled to a first end of the outer housing to inhibit movement of the sheath seal in the axial direction, the sheath end cap including a first aperture sized to allow passage of the outer sheath. A tube end cap is coupled to a second end of the outer housing to inhibit movement of the tube seal in the axial direction, the tube end cap including a second aperture sized to inhibit passage of components larger than the tube.

The invention relates to pre-magnetizing a transformer (3) of an electrolyzer power supply system (2) and a corresponding method. The electrolyzer power supply system (2) comprises a transformer (3) and a converter (4), particularly a self-commutated converter, wherein the transformer (3) is adapted to convert an alternating current electrical power output (5) from an electrical grid (6) into an alternating current electrical power input (7) for the converter (4). The converter (4) is adapted to convert the alternating current electrical power input (7) from the transformer (3) into a direct current electrical power input (8) for an electrolyzer (9). For pre-magnetizing the transformer (3), the converter (4) is adapted to provide a pre-magnetization current (13) from a direct current source (10) to the transformer (3).

Method of operating an electrolysis system (2) wherein the method comprising the step of: (S100) providing a control signal (S5) to a product valve (18b) on the oxygen-side (V) of the electrolysis system (2) to keep the product valve (18b) open in order to buffer oxygen provided by the electrolysis system (2) in a buffer tank (14b) on the oxygen-side (V) in normal operation of the electrolysis system (2).

The invention relates to a method of controlling an electrolyzing plant (10) having plural electrolyzing cells (14) providing an electrolyzing process in response to being subjected to a DC electrolyzing power, wherein the electrolyzing plant is supplied with electric power from an electric power network (12) deploying an alternating voltage having a basic frequency, wherein an AC side (22) of an electric converter (20) is connected with the electric power network, a DC side (24) of the electric converter (20) provides the DC electrolyzing power. A synchronous machine (30) has a stator winding being connected with the electric power network, wherein a rotational speed of a rotor (28) of the synchronous machine is detected by a speed sensor (26) that provides a sensor signal (34), wherein a control device (36) receives and processes the sensor signal and controls an operation of the electric converter dependent on the processed sensor signal.

The invention relates to a method of controlling an electrolyzing plant (10) having plural electrolyzing cells (14) providing an electrolyzing process in response to being subjected to a DC electrolyzing power, wherein the electrolyzing plant is supplied with electric power from an electric power network (12) deploying an alternating voltage having a basic frequency, wherein an AC side (22) of an electric converter (20) is connected with the electric power network, a DC side (24) of the electric converter (20) provides the DC electrolyzing power. A synchronous machine (30) has a stator winding, wherein a rotational speed of a rotor (28) of the synchronous machine is detected by a speed sensor (26) that provides a sensor signal (34), wherein a control apparatus (36, 54) receives and processes the sensor signal and controls an operation of an energy adaptation device (44, 46) dependent on the processed sensor signal.

Die Erfindung betrifft ein Submodul (1) für einen modularen Multilevelumrichter, wobei das Submodul (1) eine Mehrzahl von Leistungshalbleiterschalteinheiten (13, 15), die in einer Brückenschaltung angeordnet sind, wenigstens einen Energiespeicher (7) zum Speichern elektrischer Energie, wenigstens einen parallel zur Energiespeichereinheit (7) geschalteten Dauerentladewiderstand (11), wenigstens einen mechanischen Überbrückungsschalter (31), der ausgestaltet ist, Anschlussklemmen (3, 5) des Submoduls (1) in einem geschlossenen Zustand zu überbrücken, und wenigstens eine zur Steuerung der Leistungshalbleiterschalteinheiten (13, 15) und des mechanischen Überbrückungsschalters (31) ausgestaltete Steuerungseinheit (33), aufweist. Die Erfindung betrifft zudem ein Verfahren zum schnellen Entladen eines Energiespeichers (7) eines Submoduls (1). Um den Energiespeicher (7) des Submoduls (1) in einem modularen Multilevelumrichter schnell und sicher entladen zu können, ist vorgesehen, dass die Steuerungseinheit (33) ausgestaltet ist, die Leistungshalbleiterschalteinheiten (13, 15) während des Schließens oder nach dem Schließen des mechanischen Überbrückungsschalters (31) derart anzusteuern, dass der Energiespeicher (7) über den geschlossenen mechanischen Überbrückungsschalter (31) und über wenigstens eine der Leistungshalbleiterschalteinheiten (13, 15) kurzgeschlossen ist.

The invention concerns a gasket (10a; 10b) for an electrolyzer (34) cell stack (12) comprising a base plate (14) having a recess (16) configured to accommodate a part of a layer (32) of said electrolyzer (34) cell stack (12), a sealing (20) which is positioned along a wall (22) of the base plate (14) bounding said recess (16), and a mount (24) to support said part of the layer (32) of the electrolyzer (34) cell stack (12) at a predetermined position along a direction (26) transverse, preferably substantially perpendicular, to a plane of the base plate (14).

A manufacturing system and method where a fluid path is formed between a pre-heating section, a waste heat recovery section, a cooling section, a reactor section, the calcining section, and back to the pre-heating section, wherein a fluid, specifically carbon dioxide, is circulated and used within path while also capturing any generated carbon dioxide.

An anchor monitoring system for a marine wind turbine held in an operating position by an anchor includes a sensor assembly including a subsea housing fixedly attached to the anchor and positionable at an operating location on a seabed. A tilt sensor is positioned within the subsea housing and operates to measure an angle of the anchor. In addition, a second sensor selected from one of a pressure sensor, a temperature sensor, and a vibration sensor, and a third sensor selected from one of a pressure sensor, a temperature sensor, and a vibration sensor are positioned within the subsea housing. A controller operates to detect a change in an operating condition of the anchor in response to the receipt of a measured angle from the tilt sensor, a second measured value from the second sensor, and a third measured value from the third sensor.

Die Erfindung betrifft eine Endstufe (1) für eine Dampfturbine, umfassend mehrere einen Leitschaufelkranz (2) bildende Leitschaufeln (3) sowie mehrere einen Laufschaufelkranz (4) bildende Laufschaufeln (5). Zwischen jeweils zwei benachbarten Leitschaufeln (3) ist jeweils wenigstens eine Leitrippe (6) angeordnet, die sich in Richtung von einer Leitschaufelvorderkante (7), zu einer Leitschaufelhinterkante (8), erstreckt. Darüber hinaus ist im Laufschaufelkranz (4) ein Dämpfungselement (9) vorgesehen, welches die Laufschaufeln (5) des Laufschaufelkranz (4) untereinander verbinden. Erfindungsgemäß sind die Leitrippen (6) so ausgebildet und angeordnet, dass sie das Arbeitsfluid der Dampfturbine, im Nennlastbetrieb im Wesentlichen um das Dämpfungselement (9) herumleiten.

A method for operating an electrolysis system comprising an electrolyzer (7) and an on-load tap changing transformer (2) is provided. The system further comprises at least two line-commutated converters (3), preferably IGBT converters, wherein the on-load tap changing transformer (2) receives an electrical power (4) from an electrical power source (5) and provides an electrical power output (4) to the line-commutated converters (3), wherein the at least two line-commutated converters (3) are electrically connected in parallel between the on-load tap changing transformer (2) on a AC side and an electrolyzer (7) on a DC side and convert the electrical power output (4) into an electrical power input (6) for the electrolyzer (7), wherein the at least two converters (3) are connected to the same transformer AC bus, the method comprising in a ramping phase of the electrolyzer (7, 100) adjusting a voltage (U_E) of the electrical power input (6) by means of only one of the parallelly connected converters (3) to a tap changing voltage (U_tap), wherein the other parallelly connected converter is in a stand-by mode. Moreover, a related power supply, a controller, computer program and a related electrolyzer system are provided.

Verfahren zur Herstellung einer Membran-Dichtungsanordnung für eine elektrochemische Zelle, entsprechendes Zellelement und Elektrolysesystem Es wird ein Verfahren zur Herstellung einer Membran-Dichtungsanordnung für eine elektrochemische Zelle, insbesondere eine Elektrolysezelle angegeben. Das Verfahren umfasst die Schritte S1, Bereitstellen einer Membran bzw. einer Membran-Elektrodeneinheit, umfassend auf die Membran aufgebrachte Elektrodenschichten, welche im Betrieb der Zelle als Anoden- bzw. Kathodenkatalysator dienen, S2, Bereitstellen einer Dichtung, wobei die Dichtung ausgelegt ist, im Betrieb der elektrochemischen Zelle einen Anodenraum bzw. einen Kathodenraum zu dichten, und S3, stoffschlüssiges Verbinden der Membran bzw. Membran-Elektrodeneinheit und der Dichtung zu einer vorgefertigten Baugruppe. Weiterhin werden eine entsprechende Membran-Dichtungsanordnung, eine diese aufweisende elektrochemische Zelle, ein Zellelement und ein entsprechendes Elektrolysesystem angegeben.

An additive manufacturing built simulation data structure (DS) is provided. The data structure being assembled for a finite element analysis (FEM) of mechanical properties (M, T) of an object (1) to be additively manufactured, wherein the data structure (DS) comprises a matrix pattern representing an elasticity tensor (E), wherein matrix elements of the elasticity tensor (E) comprise material properties of a Young's modulus (E), a shear modulus (G) and/or a Poisson's ratio (v) of the object (1), and a model function (f_ij) being independent from the material properties (MP), wherein the function (f_ij) considers a set of build process parameters (PP), a machine setup, a voxel volume filling (Vf) and/or a lattice type for the build simulation. Moreover, an additive manufacturing built simulation method for simulating the manufacture of the object (1), is presented, the method comprising, (i), accessing the data structure (DS), and (ii), performing the build simulation by executing a finite element algorithm (FEM) based on the entries of the data structure (DS), wherein all material properties (MP) are defined as constants in the matrix and only the elements of the model function (f_ij) are calibrated for a given material.

A backflow limiting structure (2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i) which allows a flow of fluid in one direction (30). The backflow limiting structure (2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i) can be arranged in a channel (1a, 1b). The channel (1a, 1b) can be part of an electrolyzer (24), fuel cell and/or storage cell. A resistance barrier (5a, 5b, 5c, 5d, 5e, 5f) of a backflow limiting structure (2a, 2b, 2c, 2d) provides an auxiliary section (10a, 10b, 10c, 10d) and a main section (9a, 9b, 9c, 9d). The backflow limiting structure (2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i) interacts with a fluid, creating a different resistance depending on the direction of flow in the resistance barrier (5a, 5b, 5c, 5d, 5e, 5f).

The invention relates to a computer-implemented method and apparatus for analyzing an operational lifetime of a mechanical component comprising the steps of selecting (S31) a first binning for a first point cloud of a plurality of point clouds; for each bin of the first binning of the first point cloud, calculating (S32) an average temperature to form a first temperature profile; applying (S33) the first binning to a second point cloud of the plurality of point clouds; for each bin of the first binning of the second point cloud, calculating (S34) an average temperature to form a second temperature profile; determining (S35) a standard deviation and an average temperature for the first temperature profile and the second temperature profile to measure a temperature variation for the first binning; approximate (S36) the log-likelihood of the plurality of point clouds; for each bin, calculating (S37) an average and a standard deviation to form normal distributions; creating (S38) a gaussian mixture distribution and the average log-likelihood of the plurality of point clouds to measure a loss of information; and evaluating (S39) the first binning based on the measured temperature variation and the measured loss of information.

The invention relates to a computer-implemented method and apparatus for analyzing an operational lifetime of a mechanical component comprising the steps of performing by data processing unit a Finite Element Method, FEM, simulation of the mechanical component to provide a data set used to train an artificial intelligence, AI, model and calculating by the trained artificial intelligence, AI, model output values for predicting a mechanical behavior of the mechanical component at a target time in response to applied input values.

An electrolysis plant 300 with enhanced fault ride through capability comprises a transformer system 301 comprising an autotransformer 302 having a primary side connectable to an AC power grid 303 via a point of connection 304 and a secondary side with multiple taps 305, a rectifier system 306, and a set of electrolyser modules 307, 308, 309, 310, wherein the rectifier system 306 is connected to receive transformed AC power from the transformer system 301 and to provide DC power to the set of electrolyser modules 307, 308, 309, 310 and wherein an autotransformer secondary side electrical tap connection is selectively established through an on-load tap-changer OLTC 312, and wherein the OLTC 312 is configured to select one of the taps 305 and establish the corresponding electrical tap connection through a power electronic circuit.

A method of operating a power supply system (1) for a multi-stack electrolyzer system (2) is presented, the power supply (1) comprising a transformer unit (3) operable to transform an alternating current electrical power (AC) and a rectifier system (4) operable to convert the alternating current electrical power (AC) to a direct current electrical power (DC), wherein at least two thyristor-type rectifier units (5) are connected in parallel between the transformer unit (3) on the AC side and an electrolysis array (110) on the DC side of the rectifier (4), and wherein the two rectifier units (5) are connected to different electrolyser stacks (6a, 6b), wherein the method comprises controlling the voltage of the rectifier units (5), wherein a reference DC voltage is provided to a control unit (7), wherein the control unit (7) controls the DC voltage (V_dc) to a common reference value (V_{dc ref}) by providing a corresponding firing angle (α_ref). Moreover, a related controller, power supply and the multi-stack electrolyzer system, are provided.

Die Erfindung betrifft ein Submodul für einen modularen Mehrstufenumrichter, aufweisend einen ersten und zweiten Modulanschluss zur Einbindung des Submoduls in den modularen Mehrstufenumrichter, eine erste Serienschaltung mit zwei in Serie geschalteten Energiespeichern, deren Verbindungspunkt den ersten Modulanschluss bildet, eine zweite Serienschaltung mit einer ersten und zweiten in Serie zueinander geschalteten Schalteinrichtung, deren Verbindungspunkt den zweiten Modulanschluss bildet, wobei die erste und zweite Serienschaltung parallel geschaltet sind und zwischen dem ersten und zweiten Modulanschluss eine bidirektionale Schalteinrichtung angeordnet ist.

The invention is about an electrolysis system (01) for the electrolysis of CO2 comprising. For the electrolysis process a plurality of electrolysis cells (02) is required. An electrolyte reservoir (04) with connection to the electrolysis cells (02) and a cleaning system (06) is provided. To enlarge the operational time for the electrolysis system (01) it is foreseen that an electrolyte can pass through the cleaning system (06) during operation of the electrolysis system (01), wherein the cleaning system (06) comprises a formate reduction module (21). Here, a first separation column (22) and a second separation column (23) are arranged fluidly in parallel, which enables an alternating flow. The separation columns (22, 23) have a resin filling to enable a reduction of formate.

A gas-liquid separator (3, 10, 11, 12, 13, 14) for gas-liquid separation in an electrolysis system is presented, wherein an evolving gas (H<2>, O<2>) can be separated from a two-phase flow (2). The separator comprises a buffer tank (8) comprising a gas outlet (8a) and a liquid outlet (8b), wherein the buffer tank (8) is suitable for retaining a defined volume of gas (4) and liquid (5), and a cyclone arrangement (6, 7) which is set up to fluidically communicate with the buffer tank (8), wherein the cyclone (6, 7) comprises an inlet (2, 60) for receiving the two-phase flow (2), which is to be phase-separated during the electrolysis, and a gas outlet (4) being arranged apart from an additional liquid outlet (5, 70) of the cyclone. Furthermore, an electrolysis system (30) comprising the gas-liquid separator is provided.

Die Erfindung betrifft eine Umlenkgehäuseanordnung (1) für eine Dampfturbinenanordnung (2), wobei die Dampfturbinenanordnung (2) wenigstens eine Kondensationsturbine (3) sowie wenigstens einen wassergekühlten Kondensator (4) und wenigstens einen luftgekühlten Kondensator (5) umfasst. Die Umlenkgehäuseanordnung (1) umfasst ein Umlenkgehäuse (6), wobei das Umlenkgehäuse (6) wenigstens einen, zur Turbinenachse (7) axialen Durchlass (8) aufweist, durch den Dampf von der Kondensationsturbine (3) zum luftgekühlten Kondensator (5) strömen kann und wenigstens einen, zur Turbinenachse (7) radialen Durchlass (9), durch den Dampf von der Kondensationsturbine (3) zum wassergekühlten Kondensator (4) strömen kann. Des Weiteren umfasst die Umlenkgehäuseanordnung (1) wenigstens ein Absperrorgan (10), welches eine vakuumdichte Abdichtung des axialen Durchlasses (8) ermöglicht. Darüber hinaus betrifft die Erfindung eine Dampfturbinenanordnung (2) mit einer solchen Umlenkgehäuseanordnung (1).

Die Erfindung betrifft ein Gleitlagersegment (1<I>) für ein Gleitlager, das eine Kunststoffplatte aufweist, sowie Verstärkungselemente (10, 13) oder Stützungselemente.

The invention relates to an unit (40) with a cell (8), wherein the components of the cell (8) comprises at least: bipolar plates (BPP, 10), a cathodic GDLK (1), a anodic GDKLA (2), a MEA (3) in between, which (1, 2, 3) are framed in a cell frame (4), wherein this cell frame (4) is located between and to be compressed by two end plates (5', 55, 55'). wherein tie rods (66) are used to compress the cell (8) between the end plates (5', 55, 55') wherein a movable block (34) is present, which faces the cell (8), wherein the movable block (34) is able to compress the components of the cell (8).

The invention relates to a method for controlling an electrolyzing plant (10) having at least two electrolyzing devices (14, 16, 32, 38), wherein the electrolyzing plant is supplied with electric energy from an electric power network (12), wherein the electric power network provides an alternating voltage having a basic frequency, wherein an AC side of an electric converter (20, 22, 24, 26) is electrically connected with the electric power network, and a DC side of the electric converter provides a DC electrolyzing voltage.According to the invention, a sensed frequency of the basic frequency is compared with a predetermined frequency range (76), and, depending on comparing, an operating status of the at least two electrolyzing devices is stored if the basic frequency leaves the predetermined frequency range, in order to allow the operation of the respective one of the at least two electrolyzing devices being resumed.

The invention relates to a method of operating a supercritical CO2 power plant (1) comprising a combustor (3) and a gas turbine (4) having a turbine shaft (9) sealed against a turbine housing (11) in at least two sealing sections (10) by several shaft seals (12, 13, 14, 15), in particular non-contacting shaft seals, the method including the steps of burning a gaseous fuel with oxygen and a CO<2> working fluid in the combustor (3) and expanding the exhaust gas in the gas turbine (4), characterized in that a seal steam is fed to the gas turbine (4) to avoid that CO2 can leave the turbine housing (11) into the atmospheric environment (17) and to avoid that ambient air can enter the turbine housing (11), wherein the seal steam is water steam.