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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Pressure Loss Analysis of the 75 kW MCFC Stack with Internal Manifold Separator

75 kW 용융탄산염 연료전지 (MCFC) 스택 내 압력 손실 해석

  • Kim, Beom-Joo (Renewable Energy Research Group, Korea Electric Power Research Institute, KEPCO) ;
  • Lee, Jung-Hyun (Renewable Energy Research Group, Korea Electric Power Research Institute, KEPCO) ;
  • Kim, Do-Hyeong (Renewable Energy Research Group, Korea Electric Power Research Institute, KEPCO) ;
  • Kang, Seung-Won (Renewable Energy Research Group, Korea Electric Power Research Institute, KEPCO) ;
  • Lim, Hee-Chun (Renewable Energy Research Group, Korea Electric Power Research Institute, KEPCO)
  • 김범주 (한전 전력연구원 신재생에너지 그룹) ;
  • 이정현 (한전 전력연구원 신재생에너지 그룹) ;
  • 김도형 (한전 전력연구원 신재생에너지 그룹) ;
  • 강승원 (한전 전력연구원 신재생에너지 그룹) ;
  • 임희천 (한전 전력연구원 신재생에너지 그룹)
  • Published : 2008.10.30
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Abstract

To obtain the data of the pressure loss and differential pressure at the inside of the stack that was composed of 126 cells with 7,500 cm2 electrode area, 75kW molten carbonate fuel cell system has been operated. Computational fluid dynamics was applied to estimate reactions and thermal fluid behavior inside of the stack that was adopted with internal manifold type separator. The pressure loss coefficient K showed 72.29 to 84.01 in anode and 6.34 to 8.75 in cathode at low part of cells at the inside of 75 kW MCFC stack respectively. Meanwhile, the pressure loss coefficient of the higher part of cells at the interior of the stack showed 15.36 and 56.44 in anode and cathode respectively. These results mean that there is no big total pressure difference between anode and cathode at the inner part of 75 kW MCFC stack. This result will be reflected in 250kW MCFC system design.

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References

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