Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Performance Modeling of Single-Chamber Micro SOFC

단실형 마이크로 고체 산화물 연료전지의 작동특성 전산모사

  • Cha, Jeong-Hwa (Department of Ceramic Engineering, Hanyang University) ;
  • Chung, Chan-Yeup (Department of Ceramic Engineering, Hanyang University) ;
  • Chung, Yong-Chae (Department of Ceramic Engineering, Hanyang University) ;
  • Kim, Joosun (Nano-Materials Research Center, Korea Institute of Science and Technology) ;
  • Lee, Jongho (Nano-Materials Research Center, Korea Institute of Science and Technology) ;
  • Lee, Hae-Weon (Nano-Materials Research Center, Korea Institute of Science and Technology)
  • 차정화 (한양대학교 세라믹공학과) ;
  • 정찬엽 (한양대학교 세라믹공학과) ;
  • 정용재 (한양대학교 세라믹공학과) ;
  • 김주선 (한국과학기술연구원 나노재료연구센터) ;
  • 이종호 (한국과학기술연구원 나노재료연구센터) ;
  • 이해원 (한국과학기술연구원 나노재료연구센터)
  • Published : 2005.12.01
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Abstract

Performance of micro scale intermediate temperature solid oxide fuel cell system has been successfully evaluated by computer simulation based on macro modeling. Two systems were studied in this work. The one is designed that the ceria-based electrolyte placed between composite electrodes and the other is designed that electrodes alternately placed on the electrolyte. The injected gas was composed of hydrogen and air. The polarization curve was obtained through a series of calculations for ohmic loss, activation loss and concentration loss. The calculation of each loss was based on the solving of mathematical model of multi physical-phenomena such as ion conduction, fluid dynamics and diffusion and convection by Finite Element Method (FEM). The performance characteristics of SOFC were quantitatively investigated for various structural parameters such as distance between electrodes and thickness of electrolyte.

Keywords

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