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Visualization of Water Distribution in a Polymer Electrolyte Fuel Cell Using an X-ray Imaging Technique

X선 영상기법을 이용한 고분자 전해질형 연료전지의 수분분포 가시화

  • 임남윤 (포항공과대학교 기계공학과) ;
  • 박구곤 (한국에너지기술연구원) ;
  • 김창수 (한국에너지기술연구원) ;
  • 이상준 (포항공과대학교 기계공학과)
  • Published : 2007.12.30

Abstract

Water management in polymer electrolyte fuel cell (PEFC) has been receiving large attention as an important issue in practical applications. Proper water management is vital to achieve high performance and durability of PEFC. In this study, an X-ray imaging technique was employed to visualize the water distribution in a PEFC quantitatively. X-ray images of the PEFC components with and without water were distinguished clearly. From the visualized X-ray images, we could evaluate the water distribution in the region between separator and gas diffusion layer (GDL) quantitatively. In addition, the contact angle of water in the micro-channels was also clearly visualized.

Keywords

References

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