Abstract: According to the present invention, part of carbon dioxide heated by a heater is supplied to a dry gas seal portion of a compressor so that a device for pressurizing and heating a seal gas is not additionally required, configuration can be simplified and cost can be reduced. In addition, a seal gas flow path includes a low-temperature seal gas flow path and a high-temperature seal gas flow path so that, in an initial driving mode, carbon dioxide heated by a high-temperature portion of the heater is used as a seal gas and in a turbine-driving mode, carbon dioxide heated by a low-temperature portion of the heater is used as a seal gas and thus a more efficient operation can be performed.

Abstract: The present disclosure relates to a multifunctional energy storage system in which one energy storage system is capable of performing a plurality of functions and an operating method thereof.

Abstract: The present invention relates to a method for manufacturing a membrane-electrode assembly, a membrane-electrode assembly, and a fuel cell. More specifically, the present invention relates to a method for manufacturing a membrane-electrode assembly, a membrane-electrode assembly, and a fuel cell, the method comprising: preparing an electrode layer; preparing a porous support layer; and positioning the electrode layer on each of both surfaces of the porous support layer, and hot pressing the electrode layer positioned on both surfaces of the porous support layer, wherein the preparing of the electrode layer comprises: forming a functional layer including a hydrogen ion conductive binder resin on at least a portion on an electrode catalyst layer; and forming an electrolyte layer on at least a portion on the functional layer.

Abstract: Provided is a pyrolysis gasification apparatus for solid refuse fuel. The apparatus includes: a superheated steam housing formed in a cylindrical shape and installed in a horizontal direction, in which superheated steam is injected into the superheated steam housing; a screw casing formed in a tubular shape extending from one end to the other end inside the superheated steam housing and installed in the horizontal direction inside the superheated steam housing, in which solid refuse fuel (SRF) is introduced into the screw casing; a conveying screw with a plurality of screw blades on an outer peripheral surface, the conveying screw being installed inside the screw casing in the horizontal direction and rotating to convey the solid refuse fuel; and a superheated steam supplier for supplying superheated steam into the superheated steam housing, in which the superheated steam may move through a movement pat.

Abstract: The present invention relates to an apparatus and method of preparing carbonate and/or formate from carbon dioxide.

Abstract: The present invention comprises: a separable material injection part for injecting a material therein; a mixing part for mixing the material injected in the material injection part; an aging part for aging, at a high temperature, the material mixed in the mixing part; and a firing part for supporting, on a support, the material aged in the aging part.

Abstract: The present invention relates to a method for producing a 3- to 3.5-valent vanadium solution from a 4-valent vanadium solution by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation; a method for producing an electrolyte for a vanadium redox flow battery; and an apparatus for producing a liquid electrolyte for a vanadium redox flow battery. The present invention is characterized in that when a 3- to 3.5-valent vanadium electrolyte is produced from a 4-valent vanadium electrolyte by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation, the gas product produced in the catalytic reaction is captured with inert gas bubbles, which are carrier gases, and is removed from the reaction solution of the catalytic reaction by gas-liquid phase separation, thereby accelerating the catalytic reaction towards the forward reaction.

Abstract: An embodiment provides system for managing a distribution network, the system including: a plurality of energy routers configured to control the amount of router power flowing between the distribution network and internal resources; and a distribution network management apparatus configured to transmit a command value for the amount of router power, which is produced according to variability of the distribution network, to the energy router while adjusting a communication cycle of the command value depending on a control success rate of the energy router for the command value.

Abstract: One exemplary embodiment provides a charging and discharging control apparatus for an energy storage apparatus, the charging and discharging control apparatus including: a charging and discharging controlling unit configured to control a charging and discharging current amount of the energy storage apparatus according to a droop curve; a communication unit configured to receive state information from the energy storage apparatus; and a droop curve adjusting unit configured to adjust a characteristic value of the droop curve according to the state information.

Abstract: The present disclosure related to a mobile micro-grid unit and a micro-grid system. An aspect of the present embodiment provides a mobile micro-grid system including: two or more movable micro-grid units configured to receive energy from an energy source so as to supply the energy to an internal power line and configured to provide energy of the internal power line to loads; and external power lines configured to be connected between the micro-grid units, wherein the external power lines are connected to each other through the internal power lines so as to form a closed-loop type ring bus.

Abstract: The present invention relates to a heat transmitting system for providing a heat medium with a set temperature, characterized in that a heat transmitting system may include: a heat source; a heat source; a plurality of heat storage tanks that stores heat media heated by the heat source respectively; a heat exchanger that is transmitted with heat from the heat media stored in the heat storage tanks; a heat source pump that transmits the heat media transmitted from the heat source to the heat storage tanks; an inlet side-heat source header that is connected with respective inlet ends of the plurality of heat storage tanks; a heat source header valve that is provided between the inlet side-heat source header and the respective inlet ends of the plurality of heat storage tanks; an outlet side-heat source header that is connected with respective outlet ends of plurality of the heat storage tanks; an outlet valve of heat storage tank that is provided to respective outlet ends of plurality of the heat storage tanks;

Abstract: Disclosed is an apparatus for separating amine gas from mixed gas, the apparatus including: a washer column through which mixed the gas passes; and a main adsorber column through which the mixed gas passing through the washer column passes. According to the present invention, the apparatus can remove amine gas more effectively and increase the lifetime of an adsorbent by allowing the mixed gas including the amine gas to pass through the washer column and the adsorber column.

Abstract: A hierarchical fault classification method for a fuel cell system, a multi-stage fault diagnosis method therefor, and a fault diagnosis device therefor are disclosed. The fuel cell system is divided into a subsystem, a component, and an element step by step. The multi-stage fault diagnosis method includes detecting a subsystem, a fault of which occurs, in the fuel cell system composed of a plurality of subsystems and detecting an upper-level component, which causes the fault, among upper-level components included in the subsystem, the fault of which occurs, using measurement data and a control signal.

Abstract: According to an exemplary embodiment of the present invention, a pressure swing adsorption process of a hydrogen production system is provided. The hydrogen production system includes a desulfurization process for removing sulfur components from raw natural gas; a reforming reaction process for producing a reformed gas containing hydrogen generated by the reaction of natural gas through the desulfurization process and steam; and a pressure swing adsorption process of concentrating the hydrogen using a pressure swing adsorption from the reformed gas. In a desorption step of the pressure swing adsorption process, a cocurrent depressurization and a countercurrent depressurization are simultaneously performed.

Abstract: An apparatus and a method for manufacturing a continuous reactor type core-shell catalyst electrode, which may manufacture a large amount of continuous reactor type core-shell catalyst electrodes by improving coating efficiency of shell metal by using reaction chambers disposed in a circular shape or in a line are provided. The apparatus for manufacturing a continuous reactor type core-shell catalyst electrode includes: a main body; reaction chambers which are disposed plurally in a circular shape inside the main body, store reaction solution inside thereof, are equipped with a movable member and counter electrodes, and are coupled with a reference electrode to a lateral portion thereof; a palladium sheet which is moved by the movable member and immersed in the reaction solution as the movable member moves downward; a power supply which applies a voltage to the electrodes.

Abstract: Disclosed is a carbon dioxide absorbent and a carbon dioxide separation method using the same that greatly reduces energy consumption due to a small amount of latent heat required in regeneration of absorbents, enhances CO2 absorption rate, undergoes almost no thermal denaturation even at high temperatures while absorbing carbon dioxide, and results in a considerable reduction of the cost associated with absorption of carbon dioxide.

Abstract: Disclosed is a partial dismantling device of a photovoltaic module capable of classifying and collecting the photovoltaic module for recycling the photovoltaic module which includes: a transfer unit for transferring a photovoltaic module; a grind unit provided with a plurality of grinders in multiple levels, to grind the element layers of a grinding region into particles of collectible forms; and a suction unit provided with a plurality of inhalers respectively corresponding to the plurality of grinders, to classify the particles pulverized by the grind unit and to inhale the same.

Abstract: Provided is a hydrogen production reactor as a reactor producing a reforming gas including hydrogen, in which a burning unit and a reforming unit are sequentially arranged and spaced apart from each other in a concentric structure based on a raw material transfer pipe positioned at a central axis of the reactor, including a heating raw material transfer pipe supplying a raw material to the burning unit, a burning unit burning the supplied raw material and supplying heat to the reforming unit, a reforming raw material phase change pipe positioned within the burning unit and heating the supplied raw material, and a reforming unit reforming the phase-changed raw material supplied from the reforming raw material phase change pipe, wherein the reforming raw material phase change pipe is provided as a coil surrounding an outer circumferential surface of a lower end of the heating raw material transfer pipe.

Abstract: The present invention relates to a wet type dust collector using electrospray and a vortex, the dust collector having a cyclonic structure and removing dust contained in exhaust gas by spraying fine droplets that are generated when high voltage is applied to the dust collector.

Abstract: The present disclosure relates to a method and an apparatus for manufacturing a core-shell catalyst, and more particularly, to a method and an apparatus for manufacturing a core-shell catalyst, in which a particle in the form of a core-shell in which the metal nanoparticle is coated with platinum is manufactured by substituting copper and platinum through a method of manufacturing a metal nanoparticle by emitting a laser beam to a metal ingot, and providing a particular electric potential value, and as a result, it is possible to continuously produce nanoscale uniform core-shell catalysts in large quantities.