대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제41권10호
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  • Pages.667-673
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  • 2017
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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고체산화물 연료전지의 유동방향에 따른 온도 균일성 영향

Effect of Flow Direction on Temperature Uniformity in Solid Oxide Fuel Cell

  • 전동협 (동국대학교 기계시스템공학과) ;
  • 신동열 (엘티씨 기술개발연구소) ;
  • 유광현 (엘티씨 기술개발연구소) ;
  • 송락현 (에너지기술연구원 연료전지연구센타)
  • 투고 : 2017.04.21
  • 심사 : 2017.08.10
  • 발행 : 2017.10.01
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초록

공개소스 전산유체 해석 라이브러리인 OpenFOAM을 이용하여 음극 지지체형 고체산화물 연료전지의 온도균일성에 관한 연구를 수행하였다. 3가지 유형의 유동흐름(병행류, 대향류, 직교류)에 대하여 수치해석이 이루어졌다. 다공성 물질내에서의 기체의 흐름은 유효확산계수를 이용하여 계산하였고 분리판의 리브 영향도 고려하였다. 전기화학반응의 계산을 위하여 실험식으로부터 얻은 집중내부저항 모델이 사용되었다. 수치해석 결과 대향류가 가장 균일한 온도분포를 나타내었다.

We investigated the temperature uniformity in an anode-supported solid oxide fuel cell, using the open source computational fluid dynamics (CFD) toolbox, OpenFOAM. Numerical simulation was performed in three different flow paths, i.e., co-flow, counter-flow, and cross-flow paths. Gas flow in a porous electrode was calculated using effective diffusivity while considering the effect of interconnect rib. A lumped internal resistance model derived from a semi-empirical correlation was implemented for the calculation of electrochemical reaction. The result showed that the counter-flow path displayed the most uniform temperature distribution.

키워드

참고문헌

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