이화여자대학교

Won Jae Choi Associate Professor

Department of Mechanical & Biomedical Engineering / Graduate Program in System Health and Engineering

최원재 프로필 사진 
Professor Wonjae Choi received his Bachelor and Ph.D. degrees in Mechanical and Aerospace Engineering at Seoul National University. He worked at Massachusetts Institute of Technology and Seoul National University as a postdoc researcher, and joined Ewha Womans Universtiy as an assistant professor of Mechanical and Biomedical engineering. He researches renewable-based energy systems to decarbonize the planet, based on his knowledge of thermal and energy engineering. His research interests include technologies for producing hydrogen, which can serve as a key energy source in future societies; solid oxide cells capable of achieving ultra-high efficiency; energy storage systems that can store highly variable renewable electricity; and life cycle assessment (LCA), which enables the derivation of sustainability information for products and services. The research outcomes have been published in top energy-related academic journals such as Applied Energy, Energy, Energy Conversion and Management, and Journal of Cleaner Production. He serves as a director of Zero Emission Energy System Lab. Here is his website for more details: http://zero.ewha.ac.kr
  • wj_choi@ewha.ac.kr
  • Asan Engineering Building #432
  • 0232773539
  • Research Interests
    • Thermal and energy engineering, Hydrogen, Solid oxide cell, Energy storage, Life cycle assessment
  • sdg07
  • sdg13
  • sdg12
Research Record
  • Experimental and numerical study of a modular reversible solid oxide cell-thermal battery integrated system APPLIED ENERGY, 2026, v.419, 128116
    SCIE Scopus dColl.
  • Well-to-Wake greenhouse gas emissions of sustainable aviation fuels: Implications from South Korean case for energy-importing countries with fuel production capacity JOURNAL OF CLEANER PRODUCTION, 2026, v.554, 148030
    SCIE Scopus dColl.
  • Well-to-Wheel greenhouse gas emissions of E-gasoline: Insights from the South Korean case for energy-importing countries ENERGY CONVERSION AND MANAGEMENT, 2026, v.348, 120692
    SCIE Scopus dColl.
  • A pathway to decarbonizing cement manufacturing via solar-driven green hydrogen systems INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2025, v.194, 152508
    SCIE Scopus dColl.
  • Life cycle greenhouse gas emissions of conventional and alternative steel production methods in countries dependent on energy import: A South Korean case study Energy Conversion and Management: X, 2025, v.25, 100865
    Scopus dColl.
  • Life cycle greenhouse gas emissions of hydrogen imported by maritime transportation: A South Korean case study Energy Conversion and Management: X, 2025, v.26, 100887
    Scopus dColl.
  • Solid oxide fuel cell-internal combustion engine hybrid system for ships fueled by ammonia FUEL, 2025, v.387, 134201
    SCIE Scopus dColl.
  • 철도 차량 연료별 에너지 효율 및 온실가스 배출량 비교: 전기, 디젤, 수소의 분석 한국수소및신에너지학회논문집, 2025, v.36 no.5, 562-568
    KCI dColl.
  • Reversible solid oxide cell system with thermocline-type thermal energy storage: Numerical and techno-economic analysis Energy Conversion and Management, 2024, v.314, 118652
    SCIE Scopus dColl.
  • Solid Oxide Fuel Cell-Internal Combustion Engine Hybrid System for Ammonia-Fueled Locomotives; [암모니아를 연료로 하는 철도용 고체산화물연료전지-내연기관 하이브리드 시스템] Transactions of the Korean Society of Mechanical Engineers, B, 2024, v.48 no.11, 687-697
    Scopus KCI dColl.
  • 충전 시점에 따른 전기차의 well-to-wheel 온실가스 배출량 분석 한국수소및신에너지학회논문집, 2024, v.35 no.5, 475-481
    KCI dColl.
  • A comparative analysis of integrating thermochemical oxygen pumping in water-splitting redox cycles for hydrogen production Solar Energy, 2023, v.264, 111960
    SCIE Scopus dColl.
  • Greenhouse gas reduction and economic cost of technologies using green hydrogen in the steel industry JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, v.335, 117569
    SCIE Scopus dColl.
  • Mobile Proton-Exchange Membrane Fuel Cell Powered by Diesel Fuel: System Simulation and Life Cycle Analysis INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2023, v.2023, 3849631
    SCIE Scopus dColl.
  • A Reactor Train System for Efficient Solar Thermochemical Fuel Production Journal of Solar Energy Engineering, Transactions of the ASME, 2022, v.144 no.6, 61014
    SCIE Scopus dColl.
  • Well-to-wheel nitrogen oxide emissions from internal combustion engine vehicles and alternative fuel vehicles reflect real driving emissions and various fuel production pathways in South Korea Journal of Cleaner Production, 2022, v.342, 130983
    SCIE Scopus dColl.
  • Numerical modeling and analysis of the temperature effect on the performance of an alkaline water electrolysis system Journal of Power Sources, 2021, v.506, 230106
    SCIE Scopus dColl.
  • [학술지논문] Experimental and numerical study of a modular reversible solid oxide cell – thermal battery integrated system Applied Energy, 2026, v.419 no.- , 128116-128116
    Scopus
  • [학술지논문] Well-to-Wake greenhouse gas emissions of sustainable aviation fuels: Implications from South Korean case for energy-importing countries with fuel production capacity Journal of Cleaner Production, 2026, v.554 no.- , 148030-148030
    Scopus
  • [학술지논문] Well-to-Wheel greenhouse gas emissions of E-gasoline: Insights from the South Korean case for energy-importing countries ENERGY CONVERSION AND MANAGEMENT, 2026, v.348 no.2 , 120692-120692
    SCIE
  • [학술지논문] Well–to–Wheel greenhouse gas emissions of E-gasoline: Insights from the South Korean case for energy-importing countries Energy Conversion and Management, 2026, v.348 no.2 , 120692-120692
    Scopus
  • [학술지논문] A pathway to decarbonizing cement manufacturing via solar-driven green hydrogen systems INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2025, v.194 no.- , 152508--
    SCIE
  • [학술지논문] Life cycle greenhouse gas emissions of conventional and alternative steel production methods in countries dependent on energy import: A South Korean case study Energy Conversion and Management X, 2025, v.25 no.- , 100865-100865
    Scopus
  • [학술지논문] Life cycle greenhouse gas emissions of hydrogen imported by maritime transportation: A South Korean case study Energy Conversion and Management X, 2025, v.26 no.- , 100887-100887
    Scopus
  • [학술지논문] Solid oxide fuel cell-internal combustion engine hybrid system for ships fueled by ammonia FUEL, 2025, v.387 no.- , 134201--
    SCIE
  • [학술지논문] Analysis of Steam Methane Reforming System: A Comparison of Natural Gas and Liquefied Natural Gas Transactions of the Korean Society of Mechanical Engineers, B, 2024, v.48 no.7 , 395-403
    Scopus
  • [학술지논문] Reversible solid oxide cell system with thermocline-type thermal energy storage: Numerical and techno-economic analysis ENERGY CONVERSION AND MANAGEMENT, 2024, v.314 no.314 , 118652-118652
    SCIE
  • [학술지논문] Well-to-wheel Greenhouse Gas Emissions of Battery Electric Vehicles Depending on Charging Time 한국수소및신에너지학회논문집, 2024, v.35 no.5 , 475-481
    KCI
  • [학술지논문] A comparative analysis of integrating thermochemical oxygen pumping in water-splitting redox cycles for hydrogen production SOLAR ENERGY, 2023, v.264 no.0 , 111960-111960
    SCIE
  • [학술지논문] Greenhouse gas reduction and economic cost of technologies using green hydrogen in the steel industry JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, v.335 no.1 , 117569-117569
    SCIE
  • [학술지논문] Mobile Proton-Exchange Membrane Fuel Cell Powered by Diesel Fuel: System Simulation and Life Cycle Analysis INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2023, v.2023 no.0 , 1-22
    SCIE
  • [학술지논문] A Reactor Train System for Efficient Solar Thermochemical Fuel Production(1) JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 2022, v.144 no.6 , 061014-061014
    SCI
  • [학술지논문] Well-to-wheel nitrogen oxide emissions from internal combustion engine vehicles and alternative fuel vehicles reflect real driving emissions and various fuel production pathways in South Korea JOURNAL OF CLEANER PRODUCTION, 2022, v.342 no.0 , 130983-130983
    SCIE
  • [학술지논문] Life Cycle Greenhouse Gas Reductions According to Sectors Using Green Hydrogen: Comparison of Transportation Sector and Other Sectors 한국자동차공학회 논문집, 2022, v.30 no.10 , 793-799
    Scopus
  • [학술발표] A Reactor Train System for Efficient Thermochemical Fuel Production Applied Energy Symposium MIT A+B 2022, 미국, 보스턴, 2022-07-05 Applied Energy Symposium MIT A+B 2022, 2022
  • [지적재산권] 수전해수소를 이용한 제철소 부생가스 고질화 시스템 및 그 방법 Domestic : Patent , Registration
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Courses

  • 2026-2nd

    • Energy System Design

    • Electrochemical Energy System

      • Subject No G18498Class No 01
      • Year ( 3Credit , 3Hour) Thu 2~3 (ENG )
        • Syllabus(File)

  • 2026-1st

    • Introduction to Mechanical and Biomedical Engineering 강의 계획서 상세보기

      • Subject No 38559Class No 01
      • 1Year ( 2Credit , 2Hour) Mon 2~2 (ESEA) , Thu 3~3 (CH)
      • Exchange students are not allowed

    • Introduction to Mechanical and Biomedical Engineering 강의 계획서 상세보기

      • Subject No 38559Class No 02
      • 1Year ( 2Credit , 2Hour) Mon 4~4 (EDU-A202) , Thu 5~5 (EDU-A202)
      • Exchange students are not allowed

    • Thermodynamics 강의 계획서 상세보기

      • Subject No 38563Class No 01
      • 2Year ( 3Credit , 3Hour) Mon 6~6 (ESEA) , Wed 5~5 (CH)
        • Syllabus(File)

    • Mechanical and Biomedical Engineering Experiment Ⅰ 강의 계획서 상세보기

      • Subject No 38571Class No 01
      • 3Year ( 3Credit , 4.5Hour) Tue 5~7 (ENG )

    • Mechanical and Biomedical Engineering Experiment Ⅰ 강의 계획서 상세보기

      • Subject No 38571Class No 02
      • 3Year ( 3Credit , 4.5Hour) Fri 5~7 (ENG )

    • Heat Transfer

    • Mechanical & Biomedical Engineering Self-Designed Project Ⅰ

      • Subject No 39254Class No 01
      • 3Year ( 3Credit

    • Mechanical & Biomedical Engineering Self-Designed Project Ⅱ

      • Subject No 39255Class No 01
      • 3Year ( 3Credit

  • 2025-2nd

    • Energy System Modeling

      • Subject No G18189Class No 01
      • Year ( 3Credit , 3Hour) Thu 4~5 (ENG )
        • Syllabus(File)

    • Life Cycle Assessment

      • Subject No G18549Class No 01
      • Year ( 3Credit , 3Hour) Fri 4~5 (ENG )
        • Syllabus(File)

  • 2025-1st

    • Introduction to Mechanical and Biomedical Engineering

      • Subject No 38559Class No 01
      • 1Year ( 2Credit , 2Hour) Mon 4~4 (ESEA) , Thu 5~5 (CH)
        • Syllabus(File)

    • Introduction to Mechanical and Biomedical Engineering

      • Subject No 38559Class No 02
      • 1Year ( 2Credit , 2Hour) Mon 2~2 (ENG ) , Thu 3~3 (161)
        • Syllabus(File)

    • Thermodynamics

    • Mechanical and Biomedical Engineering Experiment Ⅰ

      • Subject No 38571Class No 01
      • 3Year ( 3Credit , 4.5Hour) Tue 5~7 (ENG )
        • Syllabus(File)

    • Mechanical and Biomedical Engineering Experiment Ⅰ

      • Subject No 38571Class No 02
      • 3Year ( 3Credit , 4.5Hour) Fri 5~7 (ENG )
        • Syllabus(File)

    • Heat Transfer

      • Subject No 38593Class No 01
      • 3Year ( 3Credit , 3Hour) Mon 4~4 (ESEA) , Thu 5~5 (CH)
        • Syllabus(File)

  • 2024-2nd

    • Co-op Mid-term Internship Ⅰ

      • Subject No 38891Class No 01
      • Year ( 3Credit

    • Energy System Modeling

      • Subject No G18189Class No 01
      • Year ( 3Credit , 3Hour) Thu 2~3 (ENG )
        • Syllabus(File)

    • Electrochemical Energy System

      • Subject No G18498Class No 01
      • Year ( 3Credit , 3Hour) Fri 4~5 (ENG )
        • Syllabus(File)

  • 2024-1st

    • Thermodynamics

    • Mechanical and Biomedical Engineering Experiment Ⅰ 강의 계획서 상세보기

      • Subject No 38571Class No 01
      • 3Year ( 3Credit , 4.5Hour) Tue 5~7 (ENG )
        • Syllabus(File)

    • Mechanical and Biomedical Engineering Experiment Ⅰ 강의 계획서 상세보기

      • Subject No 38571Class No 02
      • 3Year ( 3Credit , 4.5Hour) Fri 5~7 (ENG )
        • Syllabus(File)

    • Capstone Project in Content Convergence Ⅰ

      • Subject No 38588Class No 01
      • 4Year ( 3Credit , 4.5Hour) Tue 8~9 (ESEA) , Thu 3~3 (CH)
        • Syllabus(File)

    • Heat Transfer

    • Co-op Mid-term Internship Ⅰ

      • Subject No 38891Class No 01
      • 4Year ( 3Credit

    • Co-op Mid-term Internship Ⅱ

      • Subject No 38892Class No 01
      • 4Year ( 3Credit

  • 2023-2nd

    • Co-op Mid-term Internship Ⅱ

      • Subject No 38892Class No 01
      • Year ( 3Credit

    • Co-op Mid-term Internship Ⅲ

      • Subject No 38893Class No 01
      • Year ( 3Credit

    • Life Cycle Assessment

      • Subject No G18549Class No 01
      • Year ( 3Credit , 3Hour) Thu 2~3 (ENG )
        • Syllabus(File)

  • 2023-1st

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Academic Background

Seoul Nat'l Univ. 공학박사(기계항공공학부)

Seoul Nat'l Univ. 공학사(기계항공공학)(기계항공공학부)

Work Experience

Massachusetts Institute of Technology 2019-11-01 ~ 2021-03-01

Division Chair, Mechanical and Biomedical Engineering 2023-02-01 ~ 2025-01-31

휴먼기계바이오공학과장 2024-03-01 ~ 2025-01-31