Korea Institute of Energy Research

Seung-gon Kim

Tae-hyun Yang

Seok-hee Park

Sung-dae Yim

Gu-gon Park

Won-yong Lee

Young-jun Sohn

Byungchan Bae

Chang-Soo Kim

Minjin Kim

Dongwon Shin

Min-jin Kim

Hyejin Lee

Dong Won Shin

Seung Hee Woo

So Jeong Lee

Yoon Young Choi

Chang-bog Ko

Hwanyeong Oh

Sun-Mi Hwang

Min-Ji Kim

Eun Jik Lee

Dae Keun Lee

Dong-soon Noh

Young-tae Guahk

Min-Jung Lee

Adam Febriy-Anto Nugraha

Woo-Nam Jung

Byung-chan Bae

Dong-won Shin

Kyunghee Kim

Hwan-yeong Oh

Hwan Yeong Oh

Hye-jin Lee

Dae-Keun Lee

Young-Tae Guahk

Eun-Kyung Lee

Hyo-june Lee

Nam-Su Kim

Dong-chul Park

Eun-jik Lee

Hyun-uk Park

Eun-kyung Lee

Seung-hee Woo

Dong Myung Seo

Hookyung Lee

So-jeong Lee

Nam Su Kim

Yoon-young Choi

Moon-Yong Cha

The present disclosure relates to relates to an industrial premixed gas combustor using internal exhaust gas recirculation and an operating method thereof. Particularly, the industrial premixed gas combustor using internal exhaust gas recirculation includes: a fuel chamber that is provided in the central part of the interior of an injection block surrounded with an output end of the oxidizer supply chamber; an injection block that has a plurality of injection channels where oxidizers are introduced from the oxidizer supply chamberand fuel and the oxidizers are mixed and injected; an orifice for fuel injection that is provided in-between the fuel chamber of the injection block and each of the injection channels, and injects fuel inside the fuel chamber to the injection block; and an internal recirculation tube that is formed to be spaced apart from the outer surface of the output end of the oxidizer supply chamber at a predetermined interval and to extend toward the outlet, and recirculates exhaust gas due to combustion.

Industrial premixed gas combustor using internal exhaust gas recirculation and operating method thereof

The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.

Method for manufacturing core-shell catalyst using carbon monoxide

The present disclosure is related to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst and, more specifically, to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst comprising steps of: nitridation-treating a transition metal precursor core and noble metal precursor shell particles in the presence of a gaseous nitrogen source; or forming a transition metal precursor core and noble metal precursor shell particles, by means of a liquid nitrogen source, and at the same time allowing the nitrogen source to bond with the transition metal precursor and thus allowing nitridation treatment. Therefore, the present disclosure allows a high nitrogen content in the core and thus enables a prepared catalyst to have excellent durability, a small average particle size and high degree of dispersion and uniformity, and thus to be suitable for the fuel cell field.

Method for preparation gaseous-nitridation treated or liquid-nitridation treated core-shell catalyst

Method for manufacturing core-shell particles using carbon monoxide

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.

Method and apparatus for manufacturing core-shell catalyst

The present invention provides a direct-fired supercritical carbon dioxide power generation system and a power generation method thereof, the system comprising: a combustor for burning hydrocarbon fuel and oxygen; a turbine driven by combustion gas discharged from the combustor; a heat exchanger for cooling combustion gas discharged after driving the turbine, by heat exchange with combustion gas recycled and supplied to the combustor; and an air separation unit for separating air to produce oxygen, wherein a portion of the combustion gas discharged after driving the turbine is branched before being introduced to the heat exchanger and is supplied to the air separation unit.

Direct-fired supercritical carbon dioxide power generation system and method

The present disclosure is related to a method to control sizes of core-shell nanoparticles comprising the steps of: manufacturing slurry by irradiating ultrasonic waves to a dispersion solution containing a reducing solvent, a carbon support, a transition metal precursor and a precious metal precursor; manufacturing a solid by filtering the manufactured slurry, followed by washing and drying; and manufacturing a nanoparticle of a transition metal core and a platinum shell by heat-treating the dried solid at a temperature of 450 to 900&#xb0; C. and a pressure of 1 to 90 bar for 0.5 to 10 hours under Natmosphere.

Method to control the sizes of the core-shell nanoparticles

A block copolymer, an ion-exchange membrane including the block copolymer and a method of preparing the block copolymer are provided. The block copolymer may include a hydrophobic repeating unit and a hydrophilic repeating unit.

Block copolymer, ion-exchange membrane and method of preparing block copolymer

Disclosed is a fuel cell filter including a body including therein an internal space in which a fluid flows, an inlet port provided in the body and configured to receive a fluid discharged from a fuel cell stack, a gas-water separating membrane disposed in the internal space and configured to block a liquid fluid included in a fluid absorbed in the inlet port from flowing upwards, a discharge port provided in the body and configured to externally discharge the liquid fluid blocked in the gas-water separating membrane, a water absorbent disposed in the internal space and configured to absorb water included in a gaseous fluid passing through the gas-water separating membrane, and a gas outlet port provided in the body and configured to externally discharge gas separated in the gas-water separating membrane.

Fuel cell generator system

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.

Apparatus and method for manufacturing continuous reactor type core-shell catalyst electrode

To provide a reactor to improve evenness in the thickness of shell metals coated on the surface of core particles by increasing area sizes in the reactor chamber to control electric potentials, the present invention is configured to comprise a top surface able to move up and down while serving as a working electrode, a wall serving as a working electrode, a bottom surface, a standard electrode, a power supplying part and a solution injecting part, wherein the top surface can move up and down automatically by an electric motor or manually. Also, the top surface is configured to be suitable for the interior diameter of the reactor chamber, for solutions inside the reactor chamber not to leak from the top surface or from the crevice between the top surface and the wall of the reactor chamber. The bottom surface of the reactor chamber may comprise an impeller or an ultrasonic wave diffuser to bring about even diffusion in the reactor chamber.

Manufacturing core-shell catalyst and apparatus for scale-up manufacturing the same

Provided is a flight path calculating method for high altitude long endurance of an unmanned aerial vehicle based on regenerative fuel cells and solar cells according to an exemplary embodiment of the present invention may include a modeling step, a simulation step, and an analyzing step, and may be configured in a program form executed by an arithmetic processing means including a computer. a flight path searching method and a flight path searching apparatus for performing continuous flight path re-searching on the basis of information measured in real time during a flight of the unmanned aerial vehicle in the stratosphere to change a flight path so that the unmanned aerial vehicle may permanently perform long endurance in the stratosphere is provided.

Flight path calculating and searching method of a unmanned aerial vehicle with regenerative fuel cells and solar cells for high altitude long endurance, and a searching apparatus thereof

The present invention relates to a combustion devicefor burning refractory hazardous gases and a burning method for the combustion device. More particularly, the combustion devicefor burning refractory hazardous gases, which is provided in a scrubber systemfor burning waste gases, the combustion deviceincludes: a first porous body; a second porous body; and an igniter for forming a flame surfaceat the interior of the combustion device, wherein the flame surfaceformed by the igniter is located between the first porous bodyand the second porous body, and so as to form the flame surface, at least one of the first porous bodyand the second porous bodyis moved to conduct excess enthalpy combustion.

Energy saving combustion device for burning refractory hazardous gas and method for operating the same

Growing community of inventors

Daejeon, South Korea

Seung-gon Kim