Abstract: A raw material fluid treatment plant provided with a raw material reaction apparatus for reacting a raw material fluid to form a reaction gas. The raw material reaction apparatus includes preheaters and a reactor. The preheaters are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid. The reactor is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid having been heated by the preheaters to heat and react the raw material fluid.

Abstract: A platform of a gas turbine rotor blade according to one embodiment includes a groove portion recessed from an end surface on a trailing edge side toward a leading edge side. A bottom portion of the groove portion overlaps at least a blade-shaped portion when viewed from a radial direction.

Abstract: A magnetic geared electrical machine includes: a stator including a stator coil; a first rotor including a plurality of pole pieces; a second rotor including a plurality of rotor magnets, and arranged opposite to the stator across the first rotor in a radial direction; a housing having a first inlet opening and a second inlet opening, and supporting the stator; a first inlet cavity defined by at least the housing so as to communicate with the first inlet opening provided in the housing and with a first radial gap between the stator and the first rotor; and a second inlet cavity defined by at least the housing so as to communicate with the second inlet opening provided in the housing and with a second radial gap between the first rotor and the second rotor.

Abstract: A weldment manufacturing method includes a recess forming step of forming recesses on a first target member and a second target member, the recesses delineating holes each of which spans across the first target member and the second target member and that are arranged along a boundary between the first target member and the second target member when the first and second target members that are the objects to be welded together are brought into abutment against each other; an abutting step of bringing the first and second target members into abutment against each other by aligning the recesses so that the recesses delineate the respective holes; and a welding step of placing filler material in the respective holes irradiating and scanning the filler material with the laser to cause the filler material to melt so as to fill the holes with the molten filler material.

Abstract: A panel structure includes: a sheet-shaped core member having a thermoplastic property and provided with a plurality of protruding portions in at least one surface; a sheet-shaped faceplate having a thermoplastic property and disposed on the plurality of protruding portions; and a fusing portion which is selectively formed between the faceplate and the plurality of protruding portions and which bonds the core member and the faceplate to each other.

Abstract: A protection device is capable of protecting a load drive system at an appropriate timing according to a temperature of a power semiconductor. The protection device includes: a capacitor configured to output a voltage according to a charge accumulated by a first current; and a protection circuit configured to: (i) determine whether or not the voltage output by the capacitor exceeds a certain threshold value; (ii) generate a second current having a magnitude according to information related to the temperature of the power semiconductor which drives a load; and (iii) change a magnitude of the first current based on the second current.

Abstract: A direction detection device for detecting a received-wave arrival direction of a received wave, and includes: antennas for receiving the received wave; an intensity difference imparting unit that imparts intensity differences different depending on the received-wave arrival direction to intensities of the received wave; a storage unit that stores an intensity difference table in which the intensity difference between two of the antennas is associated with the received-wave arrival direction, for each combination of any two of the antennas; a detector that detects the intensity difference between the two antennas of the received wave; an extractor that extracts, from the intensity difference table, received-wave arrival directions corresponding to the intensity difference detected by the detector, for each combination; and a comparator that compares the received-wave arrival directions extracted by the extractor between the combinations of the antennas to acquire a matched received-wave arrival direction as a

Abstract: A method for starting up a combined cycle plant in which the following steps are executed: a gas turbine start-up step of increasing an output of a gas turbine to a rated output, a steam admission step of starting steam supply to a steam turbine when a temperature of the steam from a waste heat recovery boiler reaches or exceeds a predetermined temperature, and an ST generator output control step of controlling a flow rate of steam flowing into the steam turbine after a generator is synchronized so that an output of the generator increases according to a target output change pattern. In the ST generator output control step, when a thermal stress reaches or exceeds a predetermined first thermal stress, the flow rate of the steam is controlled so that the change in the generator output is smaller than a change indicated by the target output change pattern.

Abstract: A jig includes mold parts that have a contact surface of a cylindrical part of a material to be molded having a shape complying with the inner peripheral surface of the cylindrical part and are arranged in a direction crossing one direction; a bladder that is provided on a side opposite to the contact surfaces of the plurality of mold parts relative to the mold parts, capable of accommodating a fluid therein, and expandable/retractable according to a pressure of the accommodated fluid; a joining part that joins the plurality of mold parts and the bladder; and a connection part that connects a one-side mold part and an another side mold part adjacent to the one-side mold part among a plurality of mold parts to each other and restricts an interval between the one-side mold part and the other-side mold part in a direction crossing the one direction with a prescribed range.

Abstract: A wind turbine blade is provided, which includes a blade body extending from a blade root toward a blade tip along a blade length direction, a first sprayed layer disposed so as to cover at least a leading edge on a side of the blade tip of the blade body, for suppressing erosion of the leading edge of the blade body, a second sprayed layer formed between the blade body and the first sprayed layer, and having a lower electrical resistivity than the first sprayed layer, and a first conductive part for electrically connecting the second sprayed layer to a ground.

Abstract: The purpose of the present invention is to provide fuel cell system capable of stable start-up and method for starting the fuel cell system. Fuel cell system includes SOFC, a turbocharger, oxidizing gas supply line, a control valve, oxidizing gas blow line, start-up air line for supplying the start-up air to the oxidizing gas supply line with a blower, and a control unit that, in state in which the control valve is closed and the blow valve is opened to supply the start-up air to the oxidizing gas supply line with the blower when the turbocharger is started, decreases the opening of the blow valve and, after the timing at which the opening of the blow valve starts to decrease, increases the opening of the control valve and then stops the supply of the starting air.

Abstract: A steam control valve including a valve seat, a valve disc that is abuttable on the valve seat, a valve lifting rod that is linked to the valve disc and extends in a vertical direction, a bushing that supports the valve lifting rod slidably, a lever linked to an upper end of the valve lifting rod, and an actuator that causes the lever to pivot, in which a box section having a downward-facing opening is provided on one end side of the lever, and the box section of the lever loosely fits an overhang section on a side of the valve lifting rod.

Abstract: A power generation system includes: a prime mover; a magnetic gear generator configured to be driven by an input from the prime mover to generate power; a power converter connected to the magnetic gear generator; an operation mode switch unit configured to switch an operation mode of the magnetic gear generator to a step-out avoidance mode in response to that a step-out parameter indicating a risk of step-out of the magnetic gear generator exceeds a prescribed allowable range; and a reduction command unit configured to give the prime mover an input reduction command to reduce the input from the prime mover and configured to give the power converter a torque reduction command to reduce a generator torque of the magnetic gear generator, in the step-out avoidance mode.

Abstract: Provided are an aircraft lightning probable area detection device, an aircraft lightning probable area transmission system, an aircraft lightning probable area detection method, and an aircraft lightning probable area detection program that suppress the data capacity and create an aircraft lightning probable area that enables intuitive understanding of aircraft lightning probable. An aircraft lightning probable area detection device includes: an information acquisition unit configured to acquire aircraft lightning probable information indicating a level of an expected lightning strike probability on a map; a data creation unit configured to create text data of an aircraft lightning probable area information on which the level of the expected lightning strike probability and a location are associated with each other by using the aircraft lightning probable information; and a transmission unit configured to transmit the text data to an aircraft.

Abstract: A control apparatus is configured to control driving of a power generation apparatus including a motor and a power generator. The control apparatus includes a processor configured to calculate: (i) a first adjustment force command value for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator; (ii) a correction value for compensating for a delay of an electric output of the power generator; and (iii) a second adjustment force command value for controlling the motor by adding the first adjustment force command value and the correction value.

Abstract: A sealing device includes a sealing main body surrounding a rotor shaft rotating about an axis from an outer periphery side. The sealing main body includes an inside surface facing an outside surface of the rotor shaft with clearance and a plurality of hole parts formed recessed to an outer side in a radial direction from the inside surface and arrayed in a circumferential direction of the inside surface and in a direction of the axis. The hole parts have an inner peripheral wall in which a spiral groove extending twisting toward the outer side in a radial direction is formed.

Abstract: Ultrasonic flaw detection uses a phased-array ultrasonic-flaw-detection probe. The flaw detection probe is placed such that the center of curvature of the flaw detection probe coincides with a reference center of curvature of a subject. The flaw detection probe is translated along a scan direction. The flaw detection probe emits an ultrasonic beam such that the position upon which the ultrasonic beam converges coincides with the center of curvature of the curve of the outline of the cross section of the subject at the scan position, receives the resulting reflected beam, and estimates the length of a flaw in the circumferential direction of the subject. In addition, the estimated length of the flaw is corrected using a correction coefficient corresponding to the distance between the center of curvature of the reference scan position and the center of curvature of the scan position in the thickness direction of the subject.

Abstract: A rotary machine includes a rotary shaft that rotates around an axis, a plurality of rotor blades arranged on an outer peripheral side of the rotary shaft in a circumferential direction in which the rotor blade has a blade root, a platform, and a blade main body; and each damper member provided radially inward of the platform, in which the platform includes a first end surface that faces one side in the circumferential direction, and a second end surface that faces the other side in the circumferential direction so that the second end surface faces the first end surface of the adjacent other platform, and the damper member includes a first damper provided on the first end surface and having a first abutting surface, a second damper that has a second abutting surface slidably abutting the first abutting surface of the first damper and is abuttable on the second end surface, and an elastic member that bonds together the first damper and the second damper.

Abstract: A composite material is capable of suppressing decrease in the strength, which is caused by bending of fibers of a skin material during the time when the composite material is cured. A composite material is provided with a honeycomb core, a first skin material, a second skin material, a thunder-resistant mesh and a resin material; and the resin material is not arranged in a neighborhood portion which is the region corresponding to the region at the front end of the honeycomb core. A first film adhesive is arranged between the first skin material and the honeycomb core; a second film adhesive is arranged between the second skin material and the honeycomb core; and a fourth film adhesive is arranged in the neighborhood portion of the resin material in a weight per square meter, which is lower than those of the first film adhesive and the second film adhesive.

Abstract: A metal powder manufacturing device includes: an atomization tank; a crucible in which a molten metal is stored; a molten metal nozzle that allows the molten metal stored in the crucible to flow downward into the atomization tank; and a fluid spraying nozzle including a plurality of spraying holes that spray a fluid to an atomization tank side end part of the molten metal nozzle to pulverize a molten metal flow flowing downward from the molten metal nozzle. The molten metal nozzle includes a molten metal nozzle body and an orifice part having an inside diameter equal to or smaller than an inside diameter of the molten metal nozzle body, and a material of the orifice part is harder than a material of the molten metal nozzle body.