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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Study on the Behaivor of Bubbles in the Separators

분리판에서 기포의 거동에 관한 연구

  • Ryu, Cheolhwi (Graduate School, Department of Green Energy, Hoseo University) ;
  • Kim, Jongsoo (Laser & Electron Beam Application Department, Korea Institute of Mechinery & Materials) ;
  • Park, Deaheum (Research & Development Division, Hyundai Engineering & Construction Co., Ltd.) ;
  • Jung, Younguan (Department of Mechanical Engineering, Kunoh National Institute of Technology)
  • 유철휘 (호서대학교 일반대학원 그린에너지공학과) ;
  • 김종수 (한국기계연구원 첨단생산장비연구본부) ;
  • 박대흠 (현대건설 연구개발본부) ;
  • 정영관 (금오공과대학교 기계공학과)
  • Received : 2012.10.12
  • Accepted : 2012.10.26
  • Published : 2012.10.31
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Abstract

The bubbles made of hydrogen and oxygen gases producted by electrolysis disturb the electrolysis, but the behavior of these bubbles in the electrolysis stack isn't clearly defined. In order to study on the behavior of bubbles in the flow pattern of the meshes type separator, the flow visualization experiment was performed by using of a visible alkaline electrolysis stack and a stereoscopic microscope. As the results, a fine size bubbles adhered to the separator's surface in the electrolyte solution have grown large sized bubbles until each bubble's buoyance is lager than the sum of surface adhesion force and weight. And then the large bubbles flow into the upper area of the separator. Also, as wide area of the separator have been occupied by various sized bubbles, the electrolysis efficiency is declined.

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References

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