Patents Assigned to Korea Institute of Energy Research
  • Publication number: 20190151790
    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 comprises 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.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Applicant: Korea Institute of Energy Research
    Inventors: Jong-ho PARK, Hee-tae Beum, Sang-sup Han, Dong-woo Cho, Kanghee Cho
  • Publication number: 20190155227
    Abstract: An embodiment provides an energy management system of a community in which a plurality of buildings, each divided into a plurality of zones, are located, the energy management system including: a community agent that is a device managing energy of the community and is configured to receive a first incentive about a Demand Response (DR) or a Frequency Regulation (FR) from a demand management device, calculate a first response capacity responding to the first incentive among a community management capacity, and transmit a second incentive to a building agent; a plurality of building agents, each of which is a device managing energy of a corresponding building and is configured to calculate a second response capacity responding to the second incentive among a building management capacity, and transmit a third incentive to a zone agent; and a plurality of zone agents, each of which is a device managing energy of a corresponding zone and is configured to calculate a third response capacity responding to the third
    Type: Application
    Filed: March 28, 2018
    Publication date: May 23, 2019
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Yu-jin SONG, Yoon-dong SUNG
  • Patent number: 10283654
    Abstract: A method of manufacturing a CIGS-based solar cell including a transparent rear electrode, the method comprising forming a rear electrode layer including a transparent oxide material; forming rear electrode patterns including a metal material on the rear electrode layer; forming a CIGS-based light absorption layer on the rear electrode layer on which the rear electrode patterns are formed; forming a buffer layer on the light absorption layer; and forming a front electrode including a transparent material on the buffer layer, wherein the rear electrode patterns are provided with a transmissive portion, through which light is transmitted, formed between patterns of the metal material.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 7, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Kihwan Kim, Jae-ho Yun, Jihye Gwak, Seung-kyu Ahn, Jun-Sik Cho, Joo-hyung Park, Young-Joo Eo, Jin-su Yoo, Se-jin Ahn, Ara Cho
  • Patent number: 10280080
    Abstract: The present invention relates to a method of methane steam reforming using a nickel/alumina nanocomposite catalyst. More specifically, the present invention relates to a method of carrying out methane steam reforming using a nickel/alumina nanocomposite catalyst wherein nickel metal nanoparticles are uniformly loaded in a high amount on a support via a melt infiltration method with an excellent methane conversion even under a relatively severe reaction condition of a high gas hourly space velocity or low steam supply, and to a catalyst for this method. In addition, the present invention prepares a nickel/silica-alumina hybrid nanocatalyst by mixing the catalyst prepared by the melt infiltration method as the first catalyst and the nickel silica yolk-shell catalyst as the second catalyst, and applies it to the steam reforming of methane to provide a still more excellent catalytic activity even under the higher temperature of 700° C. or more with the excellent methane conversion.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: May 7, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Ji Chan Park, Jung Il Yang, Heon Jung, Tak Hyoung Lim
  • Patent number: 10276876
    Abstract: Disclosed is a method of manufacturing carbonized fine cellulose, which enables the formation of carbonized nano-sized cellulose by subjecting cellulose to drying, carbonization, and pulverization by means of shock waves using ultrasonic waves and microbubbles, thus realizing mass producibility, making it possible to fabricate a carbonized nano-sized material having uniform quality, and reducing the manufacturing costs. The carbonized fine cellulose is in the form of a nano-sized uniform carbon powder, and can thus be utilized as a catalyst support in various forms, such as fuel cell electrodes, electrodes of energy storage devices such as supercapacitors or secondary batteries, catalyst supports for micro-nano hybrid reactors, etc.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 30, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Hee-yeon Kim, Seong Ok Han, In-sub Han, Se-young Kim, Young-hoon Seong, Doo-won Seo, Guk Hyeon Kwon
  • Patent number: 10272408
    Abstract: Disclosed is provided to overcome problems of conventional methods using each of a solid discharge nozzle and a screw conveyer. According to one exemplary embodiment of the present invention, a fluidized bed system is provided to circulate solids using pressure and density difference. More particularly, a fluidized solid circulation system using pressure and density difference is characterized by comprising: a first fluidized bed reactor; a second fluidized bed reactor; a first cyclone; a second cyclone; a first pressure control valve; a second pressure control valve; a lower loop seal; an upper loop seal; and a control part, thereby circulating the solids between the first fluidized bed reactor and the second fluidized bed reactor.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: April 30, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Ho-jung Ryu, Doyeon Lee, Gyoung-tae Jin, Chang-keun Yi, Dowon Shun, Jaehyeon Park, Dal-hee Bae, Sung-ho Jo, Seung-yong Lee, Young Cheol Park, Jong-ho Moon, Dong-ho Lee
  • Patent number: 10270116
    Abstract: A high-temperature polymer electrolyte membrane fuel cell stack may include a plurality of cell units; a cooling assembly including a plurality of first independent cooling plates disposed on top surfaces of the plurality of cell units, respectively, and a plurality of second independent cooling plates disposed on bottom surfaces of the plurality of cell units, respectively; and a support assembly configured to support the plurality of cell units and the cooling assembly.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 23, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Young-Jun Sohn, Minjin Kim, Seung-Gon Kim, Gu-Gon Park, Byungchan Bae, Sung-Dae Yim, Seok-Hee Park, Tae-Hyun Yang, Won-Yong Lee, Chang-Soo Kim
  • Patent number: 10266777
    Abstract: Disclosed is a method of removing organic acids from crude oil using a gas hydrate inhibitor and a catalyst in crude oil production facilities or oil-refining facilities, in which organic acids can be removed from crude oil by reacting the crude oil with mono-ethylene glycol (MEG), di-ethylene glycol (DEG), tri-ethylene glycol (TEG), methanol or derivatives thereof, as a gas hydrate inhibitor in the presence of a tungstophosphoric acid (TPA) catalyst, whereby the acidity of the crude oil can be lowered by 93% or more, and no catalyst deactivation occurs because magnesium (Mg)-based catalysts are not used. Furthermore, a continuous process is achieved in such a manner that the gas hydrate inhibitor and the catalyst are not discarded but are collected from the crude oil from which organic acids have been removed, and are thus recycled, thereby realizing environmentally friendly, economical and efficient removal of organic acids from crude oil.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 23, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Dong Woo Cho, Jong Nam Kim, Bharat Singh Rana, Hee Tae Beum, Hyung Chul Yoon, Tae Sung Jung, Sang Sup Han
  • Patent number: 10263269
    Abstract: The present invention relates to a cell for felt electrode characterization which analyzes a characteristic of a felt electrode used in a redox flow battery. According to the present invention, the cell for felt electrode characterization can accurately analyze an electrical characteristic of the felt electrode by adjusting contact strength applied to the working electrode to be constant by adjusting the thickness of the first support that supports one side of the working electrode.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 16, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Junghoon Yang, Kyunam Jung, Jaedeok Jeon, Chanwoo Lee, Joonmok Shim
  • Patent number: 10256390
    Abstract: A solar power generation system according to the present invention comprises heat pipes which are arranged radially on the outer peripheral surface of an absorber to increase heat transfer effectiveness between the absorber and the heat pipes, thereby improving heat transfer efficiency. Also, the solar power generation system has the advantage of operating the system more stably and efficiently even in suddenly changing weather conditions, due to the improved heat transfer efficiency and capability to store heat for a specific amount of time. In addition, when the heat pipes are extrapolated onto the absorber, heat can be transferred more effectively by increasing contact surface area with between the absorber and the heat pipes. Furthermore, heat can be transferred more effectively by increasing the contact surface area by coupling the heat pipes to a heat exchange portion through a block-coupling technique.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: April 9, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Yong Heack Kang, Sang Nam Lee, Jong Kyu Kim, Hyun Jin Lee, Chang Kyun Yu, Hwan Ki Yoon, Kwan Kyo Chai
  • Patent number: 10247685
    Abstract: Disclosed herein are a high-temperature structure for measuring properties of a curved thermoelectric device, which is capable of precisely measuring the properties of a medium-temperature curved thermoelectric device that is applied to a tube-type waste heat source and is used in research, and a system and a method for measuring the properties using the same. The high-temperature structure may include a plurality of rod-shaped cartridge heaters, and a heating element having a surface that is a curved surface coming into contact with a lower end of the curved thermoelectric device, having a plurality of holes for accommodating the plurality of cartridge heaters, and directly heating the lower end of the curved thermoelectric device.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: April 2, 2019
    Assignees: KOREA INSTITUTE OF ENERGY RESEARCH, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Hyun Park, Chung-Yul Yoo, Hong Soo Kim, Min Soo Suh, Dong Kook Kim, Byung jin Cho
  • Patent number: 10242131
    Abstract: Provided are a numerical simulation system and method for an atmospheric wind flow by computational fluid dynamics. In detail, provided are a numerical simulation system and method for an atmospheric wind flow by computational fluid dynamics capable of more rapidly and efficiently performing a fluid analysis and easily making a wind power resource map by setting an analysis result of a wind direction depending on the same analysis area as an initial condition (second initial condition in the present invention) of an analysis of another wind direction.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: March 26, 2019
    Assignee: Korea Institute of Energy Research
    Inventor: Hyun-Goo Kim
  • Patent number: 10239015
    Abstract: This invention relates to a device for separating carbon dioxide that includes a self-recycling loop, and to a method of separating carbon dioxide, which serve to effectively separate carbon dioxide from a combustion gas using a separation membrane provided with the self-recycling loop. This invention adopts a self-recycling loop in which the residue gas passing through a specific separation membrane is introduced into another separation membrane and in which a permeate gas passing through the specific separation membrane is introduced back into the specific separation membrane. Accordingly, the concentration of carbon dioxide in the feed gas of the specific separation membrane is increased, which increases the concentration of the permeate gas to thus improve the separation performance of the separation membrane, thereby separating high-purity carbon dioxide.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 26, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jeong-gu Yeo, Jung-hyun Lee, Jong-ho Moon, Young Cheol Park, Dahun Lee, Woong Jin Oh
  • Patent number: 10234201
    Abstract: A complex type dryer includes a rotational cylinder, a drying material, a hot air provider, a hot air chamber and a scraping unit. The drying material provider is disposed over the rotational cylinder and coats a drying material on a surface of the rotational cylinder. The hot air provider is connected to both sides of the rotational cylinder, and includes first and second hot air tubes. The first and second hot air tubes alternately provide a hot air into the rotational cylinder or alternately exhaust the hot air passing through the rotational cylinder. The hot air chamber is disposed along an outer surface of the rotational cylinder outside of the rotational cylinder. The scraping unit is disposed at a side of the rotational cylinder, and removes the drying material from the surface of the rotational cylinder after dried by the rotational cylinder and the hot air chamber.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: March 19, 2019
    Assignee: Korea institute of energy research
    Inventors: Sung-il Kim, Jong-Won Choi, Sang-Hyun Oh, Kye-Jong Lee
  • Patent number: 10233785
    Abstract: In a steam turbine power generation system according to the present invention, a regenerator and an ejector are selectively operated according to outdoor air temperature so that the effects of the outdoor air temperature can be minimized and thus an increase in back pressure of a turbine is prevented and thus the operating efficiency of the steam turbine power generation system can be guaranteed. In addition, when the outdoor air temperature is lower than a set temperature, only a steam condenser and an air cooling condenser are used, and when the outdoor air temperature is equal to or higher than the set temperature, the regenerator and the ejector are operated so that the condensation efficiency of the air cooling condenser is improved and thus the cooling efficiency of the steam turbine power generation system can be maximized.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 19, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gil Bong Lee, Beom Joon Lee, Chul Woo Roh, Ho Sang Ra, Young Jin Baik
  • Publication number: 20190063264
    Abstract: In a steam turbine power generation system according to the present invention, a regenerator and an ejector are selectively operated according to outdoor air temperature so that the effects of the outdoor air temperature can be minimized and thus an increase in back pressure of a turbine is prevented and thus the operating efficiency of the steam turbine power generation system can be guaranteed. In addition, when the outdoor air temperature is lower than a set temperature, only a steam condenser and an air cooling condenser are used, and when the outdoor air temperature is equal to or higher than the set temperature, the regenerator and the ejector are operated so that the condensation efficiency of the air cooling condenser is improved and thus the cooling efficiency of the steam turbine power generation system can be maximized.
    Type: Application
    Filed: August 29, 2017
    Publication date: February 28, 2019
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gil Bong LEE, Beom Joon LEE, Chul Woo ROH, Ho Sang RA, Young Jin BAIK
  • Patent number: 10208631
    Abstract: The present invention drives an ejector refrigeration unit using waste heat, such as a combustion gas generated from the outside, etc., and cools a working fluid sucked into a compressor in a power generator using the working fluid that circulates in the ejector refrigeration unit, thereby reducing a compression work of the compressor so that efficiency of a system can be improved.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: February 19, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Young Jin Baik, Jun Hyun Cho, Gil Bong Lee, Ho Sang Ra, Hyung Ki Shin
  • Patent number: 10209686
    Abstract: Provided are a flight simulation and control method of a unmanned aerial vehicle with regenerative fuel cells and solar cells for high altitude long endurance, and a control apparatus thereof. The high altitude long endurance simulation method for an unmanned aerial vehicle based on regenerative fuel cells and solar cells includes: a variable inputting step of inputting design variables of the unmanned aerial vehicle based on regenerative fuel cells and solar cells; a modeling step of performing modeling of the unmanned aerial vehicle based on regenerative fuel cells and solar cells using the design variables input in the variable inputting step; and an analyzing step of analyzing a modeling result in the modeling step to perform a high altitude long endurance simulation while controlling any one of the design variables input in the variable inputting step.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: February 19, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Minjin Kim, Young-jun Sohn, Seung-gon Kim, Gu-gon Park, Byungchan Bae, Sung-dae Yim, Seok-hee Park, Tae-hyun Yang, Won-yong Lee, Chang-soo Kim
  • Publication number: 20190048873
    Abstract: A single-stage compressor including one compressing unit, includes: a housing having a compressing chamber formed therein and including a suction port, which is located in one side of the compressing chamber and into which a working fluid enters, and an injection port, which is located on the compressing chamber to be spaced apart from the suction port by a predetermined distance and into which an intermediate-pressure working fluid is injected; and an intermediate-pressure valve installed on an intermediate-pressure fluid flow path on which the intermediate-pressure working fluid moves and configured to control supply of the intermediate-pressure working fluid so that the intermediate-pressure working fluid is supplied to the injection port in response to an intermediate pressure of the compressing chamber.
    Type: Application
    Filed: January 25, 2018
    Publication date: February 14, 2019
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gil Bong LEE, Young Soo LEE, Beom Joon LEE, Ho Sang RA, Young Jin BAIK, Jun Hyun CHO, Hyung Ki SHIN
  • Patent number: 10180253
    Abstract: A carbon dioxide conversion system is provided. The carbon dioxide conversion system includes: an ion transfer membrane that separates oxygen in the air; an oxy-fuel combustor that combusts using oxygen that is separated at the ion transfer membrane as an oxidizing agent; and a dry-reformer that converts carbon dioxide that is generated through an oxy-fuel combustion reaction of the oxy-fuel combustor and methane gas that is supplied from the outside to carbon monoxide and hydrogen by a dry-reforming reaction.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 15, 2019
    Assignees: KOREA INSTITUTE OF MACHINERY & MATERIALS, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Kew-Ho Lee, Kook-Young Ahn, Sang Gyu Kang, Young Duk Lee, Tae Sun Chang, Seung Eun Nam, Ji Haeung Yu, Jong Hoon Joo