Hitachi-GE Nuclear Energy, Ltd.

A design support device includes: a virtual space creation unit configured to create image data of a three-dimensional virtual space simulating a site to be designed; and an object control unit having a function of creating an object simulating equipment to be designed in the virtual space, in a case where information on a creation operation of a predetermined object performed by a predetermined user included in the plurality of users in the virtual space is input via the communication unit, configured to create image data of the predetermined object and create attribute information of the predetermined object that can be referred to by other users to output the image data and the attribute information of the predetermined object to the plurality of external devices used by each of a plurality of users.

An ultrasonic testing device uses a scanner, employing an ultrasonic probe for scanning, to ultrasonically test a desired tested range of a subject, and includes: an information acquirer to acquire data on the subject, the scanner, the ultrasonic probe, and testing conditions; an interference analyzer to use the data acquired by the information acquirer to calculate one or more interference ranges between the subject, having one or more interferers, and the scanner, having the ultrasonic probe attached thereto, and a scan path planner to use the one or more interference ranges to calculate a scan path of the ultrasonic probe, based on the acquired data on the testing conditions, so as to avoid the one or more interference ranges.

An appearance inspection apparatus includes: an annotation unit that associates annotation information indicating whether a defect of a structure is normal with an input image to be used for an appearance inspection of the structure, the information being determined by a user based on the input image; a learning unit that generates a trained model by deep learning using the information and the input image associated with the information with respect to an initially-set trained model; and a defect inference unit that outputs a result obtained by inferring the defect based on the input image using the trained model generated by the learning unit, in which the annotation unit associates the information with the input image for which the result is different from a result of the determination made by the user for the input image to cause the learning unit to relearn the trained model.

Intended is to improve the corrosion resistance of an overlay used in a nuclear power plant, and to reduce dissolution of cobalt from an overlay. The corrosion and wear resistant overlay 7 is formed along a surface of a base 2 by laser lamination modeling, and is configured from a plurality of metal layers 1 a, 1 b, 1 c , and 1 d of a Co-base alloy. The thickness of carbide eutectics that precipitate in the metal layers 1 a, 1 b, 1 c , and 1 d is the largest in the metal layer 1 a closest to the base 2 , and is gradually smaller in the metal layers 1 b, 1 c , and 1 d farther away from the base 2 . The intensity of the laser beam applied to form layers by laser lamination modeling is adjusted so that the carbide eutectics that precipitate in at least the outermost metal layer 1 d have a controlled size of 10 μm or less.

An object of the invention is to provide a nickel-based alloy which hardly causes hardening and embrittlement due to thermal aging in a high-temperature environment and has excellent aging resistance. A nickel-based alloy contains Cr as an essential component, and optionally contains one or more of Fe, Nb, Mn, and Mo as an optional component, with the balance being Ni and unavoidable impurities. When [% Ni], [% Cr], [% Fe], [% Nb], [% Mn], and [% Mo] are atomic concentrations of respective elements, an atomic concentration ratio of Ni to Cr [% Ni]/[% Cr] is 1.8 or more and 2.2 or less, and [% Fe]+0.49 [% Nb]+0.63 [% Mn] +0.05 [% Mo]≥14 is satisfied.

Provided is a power supply system that contributes to stabilization of a power system, and the like. A power supply system includes a control unit that uses at least a part of generated power of a photovoltaic power plant and a wind power plant that generate power with asynchronous power supplies as in-plant power to be used for a motor and another load during normal operation of a nuclear power plant that generates power with a main generator that is a synchronous power supply. The control unit uses at least a part of the generated power of the photovoltaic power plant and the wind power plant as the in-plant power during the normal operation of the nuclear power plant to reduce an in-plant ratio in the nuclear power plant.

In order to ensure the structural integrity of a hood against a load such as pressure exerted from the outside of the hood, the present invention provides a steam dryer for a boiling water-type light-water reactor which ensures the stiffness of the hood without making the hood plate itself thicker, and which avoids lengthening the fabrication time or complicating the fabrication procedure. This steam dryer for a boiling water-type reactor comprises: a hood for guiding, to a steam dryer unit, steam separated by a gas-water separator installed above a reactor core made of a plurality of fuel assemblies disposed inside a nuclear reactor pressure vessel; a support ring; a skirt; and the steam dryer unit having a corrugated plate therein, the steam dryer being characterized in that the hood is made of a first hood plate disposed in the vertical direction, a reinforcing plate mounted on the first hood plate, a second hood plate disposed vertically above the first hood plate and the reinforcing plate, and a side plate disposed between the first hood plate and the steam dryer unit, and the reinforcing plate is formed such that the cross-section thereof is a concavo-convex shape.

The invention provides a piping wall thinning prediction system, a piping soundness evaluation system, and a method which can evaluate a wall thinning amount, a wall thinning rate, and a remaining life at a high speed based on limited actual measurement results, and identify a location requiring monitoring in a piping in a plant. The wall thinning prediction system includes: a first AI evaluation unit configured to evaluate a fluid characteristic value of a piping based on an input value including piping shape information and information of a fluid in the piping; and a second AI evaluation unit configured to evaluate an index related to wall thinning of the piping based on an input value including the fluid characteristic value. The wall thinning prediction system is configured to predict the index related to the wall thinning of the piping.

Provided are an inspection apparatus and an inspection method capable of two-dimensionally detecting a range of recession. The inspection apparatus includes a probe group, an ultrasonic waveform recording unit (recording unit), and a computation unit. The probe group includes a plurality of vertical probes that are attached to the surface of an inspection target object and transmit and receive ultrasonic waves. The recording unit records a plurality of reception signals obtained by receiving the ultrasonic wave transmitted from a first probe by a plurality of probes other than the first probe. The computation unit calculates a plurality of attenuation indexes representing degrees of attenuation of a plurality of second reception signals received after a plurality of first reception signals, with respect to the plurality of first reception signals recorded before an occurrence of recession in the inspection target object among the plurality of reception signals.

Provided is a gas separation module that can enhance durability under high-temperature water vapor of a fixing member that fixes a filter member to a housing. A gas separation module 1 includes a filter member 2 that separates a specific gas from a mixture gas, a housing 3 that has an inflow port 35 through which the mixture gas flows into and houses the filter member 2 , and a fixing member 4 that fixes the filter member 2 to the housing 3 and seals a gap between the filter member 2 and the housing 3 . At least a part of an inflow side surface 42 facing the inflow port 35 of the housing 3 of surfaces of the fixing member 4 is covered with a protective layer 6 . The protective layer 6 is formed of an inorganic material having a characteristic of shielding water vapor and having a characteristic of being superior in heat resistance to the fixing member.