Three-dimensional and anisotropic numerical analysis of a PEM fuel cell

Taş M., Elden G.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.47, sa.45, ss.19758-19771, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 45
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.ijhydene.2021.12.219
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Communication Abstracts, Environment Index, INSPEC
  • Sayfa Sayıları: ss.19758-19771
  • Anahtar Kelimeler: Anisotropic electrical conductivity, Diffusion layers, Charge transport parameters, PEM fuel cell, GAS-DIFFUSION LAYERS, ELECTRICAL CONTACT RESISTANCE, THERMAL-CONDUCTIVITY, TRANSPORT PHENOMENA, TEMPERATURE DISTRIBUTION, COUPLED ELECTRON, MASS-TRANSPORT, PERFORMANCE, FLOW, MODEL
  • Erciyes Üniversitesi Adresli: Evet

Özet

In this study, the effects of cell temperature and relative humidity on charge transport parameters are numerically analyzed. In order to perform this analysis, three-dimensional and anisotropic numerical models are developed. The numerical models are integrated into the experimental values for anisotropic electrical conductivities, as depending on cell temperature and relative humidity, that were obtained from our previous study. The achieved results indicate that the values of current densities in the in-plane direction increase with increasing cell temperature and relative humidity, while the current densities reach a maximum in the rib regions for both the numerical model at the through-plane direction. The behaviors of electrolyte potentials are similar with changes in the cell temperature and relative humidity. In addition, the cathode electrical potentials in both the in-plane direction and through-plane direction do not change to a considerable amount with increasing cell temperature and relative humidity. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.