화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.11, 3121-3127, November, 2016
DOI10.1007/s11814-016-0157-8  Export Citation
Effect of gas diffusion layer compression on the polarization curves of a polymer electrolyte membrane fuel cell: Analysis using a polarization curve-fitting model
In-Su Han, Sang-Kyun Park1, and Chang-Bock Chung2, †
  • R&D Center, GS Caltex Corp., 359 Expo-ro, Yusung-gu, Daejeon 34122, Korea
  • 1Division of Marine Information Technology, Korea Maritime and Ocean University, Busan 49112, Korea
  • 2School of Chemical Engineering, Chonnam National University, Gwangju 61186, Korea
E-mail:
The effect of gas diffusion layer (GDL) compression on the polarization curves of a polymer electrolyte membrane fuel cell was analyzed using a polarization curve-fitting model. The polarization curves measured at four different GDL compression ratios were fitted with the model and were decomposed into an open circuit voltage and three over-voltages resulting from activation, ohmic, and mass-transport losses, respectively. The model fitting was excellent enough to use the model in the subsequent analysis of the GDL compression effect. The relationship between the over-voltages and the compression ratio was investigated by analyzing the estimated model parameters, and an optimal compression ratio was determined for the fuel cell. The proposed analysis method based on the polarization curve-fitting model can be applied to identifying quantitative differences of polarization curves under various operating conditions and designs for fuel cells.
Keywords:Polymer Electrolyte Membrane Fuel Cell;Gas Diffusion Layer;Compression;Polarization Curve;Modeling
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