Patents Assigned to Korea District Heating Corp.
  • Publication number: 20220387928
    Abstract: Disclosed is a hybrid system of carbon dioxide compact separation membrane and carbon recycling for an urban power plant for effluent carbon dioxide concentration control, including a blower into which an exhaust gas is input and which distributes the exhaust gas, a photo-culture process unit which receives the exhaust gas from the blower, performs a photo-culture process using microalgae, and discharges a first treatment gas, a mixing tank into which the exhaust gas supplied from the blower and the first treatment gas are input, a separation membrane process unit which receives a second treatment gas mixed in the mixing tank, and separates a third enriched gas from the second treatment gas using a plurality of separation membranes, a mineralization reaction unit which mineralizes carbon dioxide using the third enriched gas separated in the separation membrane process unit and discharges a third treatment gas to the mixing tank, a sensor unit which measures a carbon dioxide concentration discharged from each
    Type: Application
    Filed: June 7, 2022
    Publication date: December 8, 2022
    Applicant: Korea District Heating Corp.
    Inventors: Won Seok CHANG, Kyoung A SHIN, Jong Jun LEE, Kyung Min KIM, Hyeong Gyu NAMGUNG, Hyun Cheal LEE, Ji Hye YU
  • Publication number: 20220285939
    Abstract: A virtual power plant system using a heat conversion device includes a plurality of distributed energy resources connected to a virtual power plant; a virtual power plant output adjustment device connected to the virtual power plant and including a heat conversion device that receives power generated from the plurality of distributed energy resources and converts the power into thermal energy, a virtual power plant management device configured to conduct a bidding by predicting an expected power generation amount of the plurality of distributed energy resources, analyze output variation and error of the virtual power plant due to an output variation of the plurality of distributed energy resources, and stabilize an output variation of the virtual power plant by controlling a power consumption amount of the virtual power plant output adjustment device based on the analysis result.
    Type: Application
    Filed: May 10, 2021
    Publication date: September 8, 2022
    Applicant: KOREA DISTRICT HEATING CORP.
    Inventors: Ja Kyun KOO, Tae Seon EOM, Yong Ha LEE, Min Sung KO, Dong Hwan CHANG
  • Publication number: 20220285942
    Abstract: A power trading system of virtual power plant includes a plurality of virtual power plants connected to a power system and including a distributed energy resource; a heat conversion device connected to the power system and converting the power generated from the plurality of distributed energy resources into thermal energy; and a power trading device configured to analyze an excess and insufficient power amount of the plurality of virtual power plant due to an output variation of the distributed energy resource, control power trading between the plurality of virtual power plant, the power system, or the heat conversion device by using the analysis result of the excess and insufficient power amount to stabilize the output of the power system and the virtual power plant.
    Type: Application
    Filed: May 10, 2021
    Publication date: September 8, 2022
    Applicant: KOREA DISTRICT HEATING CORP.
    Inventors: Ja Kyun KOO, Tae Seon EOM, Yong Ha LEE, Min Sung KO, Dong Hwan CHANG
  • Publication number: 20220285940
    Abstract: A virtual power plant system using a renewable combined heat and power plant includes a plurality of distributed energy resources connected to a virtual power plant; a virtual power plant output adjustment device connected to the virtual power plant and including a renewable combined heat and power plant that produces electricity using a new and renewable energy source; and a virtual power plant management device configured to conduct a bidding by predicting an power generation amount of the plurality of distributed energy resources, analyze output variation and error of the virtual power plant based on the power generation amount of the plurality of distributed energy resources, and stabilize an output variation of the virtual power plant by controlling a power generation amount of the virtual power plant output adjustment device.
    Type: Application
    Filed: May 10, 2021
    Publication date: September 8, 2022
    Applicant: KOREA DISTRICT HEATING CORP.
    Inventors: Ja Kyun KOO, Tae Seon EOM, Yong Ha LEE, Min Sung KO, Dong Hwan CHANG
  • Publication number: 20210053012
    Abstract: The present invention provides a system for capturing and recycling carbon dioxide in an exhaust gas, which includes a CO2 capture unit into which an exhaust gas containing CO2 is input, and which captures the CO2 as a high concentration enriched gas and separates a first treatment gas; a mineralization process unit which mineralizes the CO2 after receiving the high concentration enriched gas captured in the CO2 capture unit and discharges a second treatment gas; a mixing tank which receives the first treatment gas and the second treatment gas and mixes them so that the contained CO2 has a predetermined concentration; a photo-culture process unit which receives the resulting third treatment gas from the mixing tank to perform a photo-culture process using microalgae; and a control unit which controls the flow rates and the CO2 contents of the gases supplied and discharged to/from the CO2 capture unit, the mineralization process unit, the mixing tank and the photo-culture process unit.
    Type: Application
    Filed: November 7, 2018
    Publication date: February 25, 2021
    Applicant: Korea District Heating Corp.
    Inventors: Won Seok CHANG, Yoon Soo CHOI, Mun Sei OH, Kyung Min KIM, Ji Hye YU, Young Jae LEE
  • Patent number: 10005997
    Abstract: The present invention relates to a port installed in a closed-ended photochemical reactor, and more particularly, to a multi-functional port for microalgae cultivation and harvesting that supplies gas for cultivation for culturing microalgae by connecting to the closed-ended photochemical reactor; supplies gas for prevention of precipitation for lifting microalgae during cultivation; and assembles by taking samples of microalgae or selectively combining a plurality of valves which can harvest microalgae, whose cultivation is completed.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: June 26, 2018
    Assignee: KOREA DISTRICT HEATING CORP.
    Inventors: Won Seok Chang, Deog Yong Ahn, Sang Ho Shin, Ji Hye Yu, Young Jae Lee, Won Kwon Lee, Kwang Keun Choi, Sung Min Kim
  • Patent number: 9475001
    Abstract: The present invention relates to an extracting device supplying fixed quantity of exhaust gas for industrial facility, and more particularly, to an extracting device supplying fixed quantity of exhaust gas for industrial facility which supplies a certain amount of exhaust gas by installing a gas supply pipe, in which two blowers are arranged in a line, at a stack and operating each blower in accordance with a predetermined input value.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: October 25, 2016
    Assignee: KOREA DISTRICT HEATING CORP.
    Inventors: Won-Seok Chang, Chang-Jun Lee, Jin-Bae Kim, Nam-Woong Kim
  • Patent number: 8056354
    Abstract: An air conditioning system using for a dehumidifying cooling device has developed that comprising a heating source for producing hot water, a heat exchanger for transferring heat from the hot water to circulating water, a circulation pump for circulating the resulting hot water heated in the heat exchanger, a heating pipeline connected to the circulation pump for conveying the hot water to a heat supply target area, a user heat exchanger connected to the heating pipeline for conveying hot water to the heat supply target area, a dehumidifying cooling device connected to a hot water pipe of users heat exchanger and installed in each household within the heat supply target area, the dehumidifying cooling device removing moisture from the air by using hot water supplied from the hot water pipe to deal with latent heat load and to lower the temperature of the dehumidified air via evaporation of water contained in the air.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: November 15, 2011
    Assignee: Korea District Heating Corp.
    Inventors: Seok-Mann Yoon, Dae-Young Lee, Hoon Lee, Chang-Ku Kang, Sung-Ook Jeong