Patents by Inventor Hong Geun HA

Hong Geun HA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Combined power generation system with feedwater fuel preheating arrangement
    Patent number: 11719156
    Abstract: A combined power generation system is provided. The combined power generation system includes a gas turbine configured to combust fuel to generate a rotational force, a heat recovery steam generator (HRSG) configured to heat feedwater using combustion gas discharged from the gas turbine and include a high-pressure section, a medium-pressure section, and a low-pressure section with different pressure levels, a fuel preheater configured to heat the fuel supplied to the gas turbine and include a primary heating part and a secondary heating part, and a high-pressure feedwater supply pipe connected to the high-pressure section to supply high-pressure feedwater to the secondary heating part.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: August 8, 2023
    Assignee: DOOSAN ENERBILITY CO., LTD.
    Inventors: Byoung Gu Bak, Song Hun Cha, Sung Gju Kang, Hong Geun Ha
  • COMBINED POWER GENERATION SYSTEM AND OPERATING METHOD THEREOF
    Publication number: 20220316395
    Abstract: A combined power generation system is provided. The combined power generation system includes a gas turbine configured to combust fuel to generate a rotational force, a heat recovery steam generator (HRSG) configured to heat feedwater using combustion gas discharged from the gas turbine and include a high-pressure section, a medium-pressure section, and a low-pressure section with different pressure levels, a fuel preheater configured to heat the fuel supplied to the gas turbine and include a primary heating part and a secondary heating part, and a high-pressure feedwater supply pipe connected to the high-pressure section to supply high-pressure feedwater to the secondary heating part.
    Type: Application
    Filed: February 22, 2022
    Publication date: October 6, 2022
    Inventors: Byoung Gu BAK, Song Hun CHA, Sung Gju KANG, Hong Geun HA