Abstract: Disclosed are an electrode slurry for a fuel cell capable of forming a multilayer structure without an interface using a first support and a second support having different mesopore fractions and densities, a multilayer electrode structure using the same, and a manufacturing method thereof. The electrode slurry for a fuel cell includes a first catalyst including a first support on which a first metal is supported, a second catalyst including a second support on which a second metal is supported, an ionomer, and a solvent, the first support and the second support having different mesopore fractions and densities.

Abstract: In an embodiment an apparatus includes a processor configured to generate a feature extraction module using a dataset in which an attribute for each object is defined, receive an image obtained by a camera, extract an attribute of an object of interest from the image using the learned feature extraction module, identify an object re-identification candidate group based on the extracted attribute of the object of interest and re-identify the object of interest based on the identified object re-identification candidate group.

Abstract: A rotor, a turbine, and a gas turbine including the same are provided. The rotor includes a pair of disks rotating about an imaginary central axis and arranged parallel to each other in an axial direction, a replaceable self-locking sealing assembly interposed between the pair of disks, and a fastening section disposed on the sealing assembly to fasten the sealing assembly to the disks. The disk includes a sealing slot disposed on an opposite surface to another adjacent disk and a head slot disposed outward from the sealing slot with respect to a radial direction of the to disk. The sealing assembly includes a main body with one end inserted into the sealing slot through the head slot from an outside of the disk and a sealing head disposed on another end of the main body to be seated on an inner wall of the head slot to restrict the main body from being moved.

Abstract: A turbomachine is provided.

Abstract: A turbomachine is provided.

Abstract: A compressor, which is mounted to a gas turbine and generates high temperature and high pressure compressed air and supplies the compressed air to a combustor, the compressor including: a plurality of main disks provided on an outer circumferential surface of a rotation shaft along a circumferential direction, and spaced apart from each other at predetermined intervals such that a portion of the compressed air flows toward the rotation shaft; and a reinforcing disk mounted to each space defined by the plurality of main disks spaced apart from each other, the reinforcing disk having the rotation shaft in common with the main disks, and being provided with a passage formed in a direction from an outer circumferential surface thereof toward the rotation shaft.

Abstract: A rotor, a turbine, and a gas turbine including the same are provided. The rotor includes a pair of disks rotating about an imaginary central axis and arranged parallel to each other in an axial direction, a replaceable self-locking sealing assembly interposed between the pair of disks, and a fastening section disposed on the sealing assembly to fasten the sealing assembly to the disks. The disk includes a sealing slot disposed on an opposite surface to another adjacent disk and a head slot disposed outward from the sealing slot with respect to a radial direction of the to disk. The sealing assembly includes a main body with one end inserted into the sealing slot through the head slot from an outside of the disk and a sealing head disposed on another end of the main body to be seated on an inner wall of the head slot to restrict the main body from being moved.

Abstract: A turbine temperature estimation system controls a valve in a cooling passage to control the flow rate of cooling air supplied to a turbine component on the basis of its temperature. The system includes a coating layer formed on a surface of a component of the gas turbine; a measuring unit to supply an electric current to the coating layer and to measure a change in a resistance value of the coating layer; and a controller to estimate a temperature of the coating layer on the basis of the resistance value. The coating layer includes a heat shielding material and a resistive material whose resistance value changes with temperature. A cooling passage supplies cooling air to cool the turbine component, and the controller controls an opening of the cooling passage according to a voltage value of the coating layer.

Abstract: Disclosed herein is a gas turbine and a method of cooling the same. A cooling air supply passage of extracting air out of a compressor of the gas turbine and diverting the air to the outside is formed, and vanes and blades of a turbine are cooled by such cooling air supply passage that does not pass through a central shaft of the gas turbine. Consequently, the consumption of cooling air may be reduced while cooling efficiency is not affected, and the flow rate of cooling air may be more easily controlled.

Abstract: A compressor, which is mounted to a gas turbine and is provided with a plurality of rotating members on an outer circumferential surface of a rotation shaft along a circumferential direction so as to generate high temperature and high pressure compressed air and supply the compressed air to a combustor, the compressor including: a plurality of main disks provided on the outer circumferential surface of the rotation shaft along the circumferential direction, and spaced apart from each other at predetermined intervals such that a portion of the compressed air flows toward the rotation shaft; and a reinforcing disk mounted to each space defined by the plurality of main disks spaced apart from each other, the reinforcing disk having a rotation shaft in common with the main disks, and being provided with a passage formed in a direction from an outer circumferential surface thereof toward the rotation shaft.