한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제32권6호
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  • Pages.470-476
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  • 2021
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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고출력 SOEC 시스템의 매개변수 연구

Parametric Study on High Power SOEC System

  • 뚜안앵 (한국기계연구원 청정연료발전연구실) ;
  • 김영상 (한국기계연구원 청정연료발전연구실) ;
  • 잡반티엔 (한국기계연구원 청정연료발전연구실) ;
  • 이동근 (한국기계연구원 청정연료발전연구실) ;
  • 안국영 (한국기계연구원 청정연료발전연구실)
  • BUI, TUANANH (Department of Clean Fuel and Power Generation, Korea Institute of Machinery & Materials (KIMM)) ;
  • KIM, YOUNG SANG (Department of Clean Fuel and Power Generation, Korea Institute of Machinery & Materials (KIMM)) ;
  • GIAP, VAN-TIEN (Department of Clean Fuel and Power Generation, Korea Institute of Machinery & Materials (KIMM)) ;
  • LEE, DONG KEUN (Department of Clean Fuel and Power Generation, Korea Institute of Machinery & Materials (KIMM)) ;
  • AHN, KOOK YOUNG (Department of Clean Fuel and Power Generation, Korea Institute of Machinery & Materials (KIMM))
  • 투고 : 2021.12.01
  • 심사 : 2021.12.20
  • 발행 : 2021.12.30
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초록

In the near future, with the urgent requirement of environmental protection, hydrogen based energy system is essential. However, at the present time, most of the hydrogen is produced by reforming, which still produces carbon dioxide. This study proposes a high-power electrolytic hydrogen production system based on solid oxide electrolysis cell with no harmful emissions to the environment. Besides that, the parametric study and optimization are also carried to examine the effect of individual parameter and their combination on system efficiency. The result shows that the increase in steam conversion rate and hydrogen molar fraction in incoming stream reduces system efficiency because of the fuel heater power increase. Besides, the higher Faraday efficiency does not always result a higher system efficiency.

키워드

과제정보

This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20213030040110).

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