Abstract: This invention relates to a railway vehicle car of the type including a floor including at least one movable platform and a standard platform, the movable platform being located opposite a door in the railway vehicle, the movable platform being capable of moving linearly vertically so that the height of the movable platform can be varied to match the height of the said platform to the height of a station platform, at least one first running board which can move linearly vertically and in a transverse direction being provided to fill the gap between the movable platform and the station platform when the said running board is in a deployed position. The movable platform and the running board can move independently of each other.

Abstract: A pulverizer 10 includes a journal assembly 19 with a grinding roller 18 that grinds solids in a grinding table 14. The oscillations of the journal assembly 19 are monitored by an angular displacement transducer (ADT) 32 that creates a composite signal. A controller 83 receives the composite signal from the ADT and compares it with known information of the pulverizer 10. It then identifies abnormal situations such as damage to a grinding roll 14, the grinding table 14, the spring assembly 20 and other parts of the pulverizer 10 before they cause major damage.

Abstract: A method and a blade for a turbine or, more generally a turbomachine, are described with the blade having at a top end a shroud segment designed to engage with shroud segments of adjacent blades in an ring-shaped assembly at least partly by means of assembling the blades with the shroud segment having a central indentation along an engaging face.

Abstract: The present invention relates to an assembly comprising a duct, preferably a turbine duct, and at least one segment formed of at least two rigid shells, each shell comprising at least one fixing orifice for fixing to the duct and at least one fixing element at least one boss per shell which boss is fixed to the duct and against which boss the shell rests, such that at least one orifice and one boss face one another, and that the fixing element passes through the orifice facing the boss and is fixed to the boss.

Abstract: Systems, methods, and apparatus for pre-processing of electrical power grid data for event-driven automatic generation control (AGC) are presented herein. An AGC application can determine AGC output data, for output to a unit controller that controls power generator(s) related to an electrical power grid, based on current values of a subset of electrical power grid data associated with the electrical power grid that has changed since a prior determination that the electrical power grid data has changed. A pre-process component can determine the subset of the electrical power grid data that has changed since the prior determination, and send the current values of the subset of the electrical power grid data to an area control error component. An event-driven component can determine information in response to an event trigger generated based on processing the current values of the subset of the electrical power grid data received from the pre-process component.

Abstract: The present disclosure relates to a method of milling a fuel for an oxy-fuel combustion burner, the method includes: separating air into a hot nitrogen gas stream, having a temperature of at least 150° C. and a purity of at least 98 mol-% nitrogen, and an oxygen gas stream; leading at least a part of the nitrogen gas stream to a fuel mill; milling the fuel by means of the fuel mill in a nitrogen rich atmosphere formed by means of the nitrogen gas stream; leading the at least a part of the nitrogen gas stream away from the milled fuel; leading the oxygen gas stream to the oxy-fuel combustion burner; conveying the milled fuel to the oxy-fuel combustion burner; and burning the fuel, by means of the oxy-fuel combustion burner, in an oxygen rich atmosphere formed by means of the oxygen gas stream. The present disclosure further relates to a system for milling a fuel for an oxy-fuel combustion burner as well as to a power plant comprising such a system.

Abstract: The invention relates to a nozzle bottom device and to a method for operating the latter. The nozzle bottom arrangement has a nozzle group with first nozzles and a further nozzle group with second nozzles. The two nozzle groups can be supplied independently of each other with a fluidizing medium. The respective volumetric flow can be switched on and off or can be adjusted variably. The first nozzles and the second nozzles are uniformly distributed over the entire surface of the nozzle bottom arrangement. As a result, a homogeneous fluidized bed is produced in the fluidized bed dryer irrespective of whether only one of the nozzle groups or all of the nozzles is or are operated.

Abstract: A power supply converter unit is disclosed, in particular for an electrostatic precipitator, converting the frequency of alternating input supply (1) to high frequency alternating output (Ua, Ub) by rectifying the alternating input supply (1) in a rectifier (12) to a direct current (Udc), which is converted to alternating-current in a full bridge inverter (13) in a H-bridge circuit with switches (48) controlled by a control unit (23). According to the invention on the input side of the rectifier (12) and/or in the direct current (Udc) section there is provided at least one overvoltage protection circuitry (34, 35, 37-39, 45). Furthermore the invention discloses a method of operation of such a power supply converter unit as well as uses of such a power supply converter unit.

Abstract: A rotating packed bed RPB that includes a first and second packed bed both arranged on the same rotatable shaft. A gas is directed via a gas inlet through the first packed bed in co-current flow with a liquid in a radially outward direction towards the outer radius of the packed bed. The liquid enters the first packed bed via a first liquid inlet. The gas exiting the first packed bed is directed to the second packed bed and forced through it in a radially inward direction in counter-current flow with a liquid, which enters through a second liquid inlet. The arrangement allows an operation of the rotating packed bed with less energy compared to RPBs of the prior art operating in counter-current flow only. The apparatus allows low-cost design and high design flexibility.

Abstract: A bogie (1) for a railway vehicle includes a motor (4) having a casing (6) fastened to two beams (2) of the bogie, the motor shaft (12) being arranged parallel to these beams (2), secondary suspensions (14) and a weight-bearing crosspiece (16) resting on the secondary suspensions (14). The bogie (1) includes a set of end supports (24) and stops (26) arranged on the casing (6) of the motor (4) and on the weight-bearing crosspiece (16).

Abstract: A compressor component having an airfoil with a profile in accordance with Table 1 is disclosed. The compressor component, such as a compressor blade, has an increased thickness over a portion of the airfoil span in order to increase stiffness. Furthermore, the airfoil has been restacked so as to induce a compressive stress in the blade root/attachment area. The increased stiffness and restacked airfoil combine to improve high-cycle fatigue capability of the compressor component.

Abstract: A voltage source converter for use in high voltage DC power transmission and reactive power compensation. The voltage source converter comprises at least one converter limb including first and second DC terminals for connection in use to a DC network and an AC terminal for connection in use to an AC network. The or each converter limb defines first and second limb portions, each limb portion including at least one switching element connected in series with a chain-link converter between a respective one of the first and second DC terminals and the AC terminal. The switching elements of the first and second limb portions is operable to switch the respective chain-link converters in and out of circuit between the respective DC terminal and the AC terminal. The chain-link converters are operable to generate a voltage waveform at the AC terminal.

Abstract: A combined cycle power plant includes a CO2 capture system operatively integrated with a liquefied natural gas LNG regasification system, where cold energy from the regasification process is used for cooling processes within the CO2 capture system or processes associated with it. These cooling systems include systems for cooling lean or rich absorption solutions for the CO2 capture or the cooling of flue gas. The LNG regasification system is arranged in one or more heat exchange stages having and one or more cold storage units. The power plant with CO2 capture can be operated at improved overall efficiencies.

Abstract: The invention relates to a steam Rankine cycle plant and a method for operating thereof. The plant comprises a higher-pressure steam turbine with an outlet and a reheater fluidly connected to the higher-pressure steam turbine. In addition, the plant has a lower-pressure steam turbine with an inlet that is fluidly connected to the reheater. The plant also has a bypass that is fluidly connecting the outlet and the inlet so as to bypass the reheater.

Abstract: The invention concerns a monitoring method and system for monitoring an electric motor, comprising: modelling means (5) for modelling a circle diagram (31) based on current intensities of said electric motor, calculating means (7) for calculating at least one operational parameter by using said circle diagram, said operational parameter being anyone out of the following operational parameters: torque, resistive loss, rotor resistance, slip, and motor yield, monitoring means (9) for monitoring said electric motor (3) based on said operational parameter.

Abstract: The invention relates to a Steam Rankine cycle solar plant and a method of operating thereof. The plant comprises a steam generator for generating steam from solar thermal energy, a feed line connected to the steam generator and a multi-stage turbine, with a first stage and an intermediate stage downstream of the first stage, connected to the steam generator by the feed line. The plant further includes an overload valve located in the feed line. This overload valve is configure and arranged to limit the steam pressure of the first stage by directing at least a portion of the steam into the intermediate stage above a predetermined steam turbine inlet pressure.

Abstract: To recover the axial forces transmitted by a rotating shaft, a bearing assembly includes a plurality of distributed bearing units. Each bearing unit comprises: a stationary base; a resilient member having a stationary portion and a portion that is completely movable in a main direction of the forces to be supported; and a bearing surface that defines, together with the shaft, a water film. The bearing surface is connected to the movable portion. The minimum radius of the bearing surface is between 1 m and 3 m. The resilient member and the base define at least one water chamber. A plurality of ducts are arranged so as to connect the chambers together, thereby defining a closed circuit.

Abstract: The invention relates to a steam Rankine cycle solar plant and a method of operating thereof. The plant comprises a high-pressure steam turbine with an inlet, an intermediate stage that is downstream of a first stage, and an outlet. A lower-pressure steam turbine with an inlet is fluidly connected to the outlet of the high-pressure steam turbine. The plant further comprises a focal point solar concentrator that is configured and located to superheat steam, by either direct or indirect means, as it is fed to the high-pressure steam turbine, and a first linear solar concentrator that is configured and located to reheat steam from the high-pressure steam turbine as it is fed to the lower-pressure steam turbine.

Abstract: The present invention relates to a method and a system for cleaning a CO2 rich flue gas stream containing water vapor and NOX prior to CO2 sequestration.

Abstract: A hydraulic machine through which a main flow of water passes including at least one turbine blade having an upstream end and a downstream end and a channel extending an entire length of the blade for tapping flow from the main flow adjacent the upstream end of the blade and discharging the tapped flow at the downstream end of the blade in a direction of the main flow.