CFD simulation of PEMWE flow-field design based on a bio-inspired

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Alobeid M., Çelik S.

EJONS 16th International Conference On Mathematics, Engıneering, Natural & Medical Sciences, İstanbul, Türkiye, 11 Kasım 2023, ss.1-3, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1-3
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Ankara Yıldırım Beyazıt Üniversitesi Adresli: Evet

Özet

For the generation of green hydrogen, electrolysis in conjunction with renewable energy sources is the most viable approach. The capacity of the Polymer Electrolyte Membrane Water Electrolyzer (PEMWE) to generate compressed hydrogen with high purity at comparatively moderate working temperatures (70–90 C) has drawn attention. The bipolar plates (BPPs) are the PEMWE stack's major cost contributors. Flow distributor impact has a major effect on Polymer Electrolyte Membrane Water Electrolyzer (PEMWE) performance and durability. Several leaves were used as a very similar example inspired by the plant to study how to get the most out of bio-inspired design as a great convergence accelerator track for creating new bipolar plates (BPPs) geometries. The hydraulic pathway through a leaf can be thought of as analogous to an electrical circuit, which represents the channel geometry of BPPs. In order to assess the flow field performance of the proton exchange membrane water electrolysis (PEMWE) under the same operating conditions (operating temperature, anode pressure, current density) and design parameter (anode channel (ACH), porous gas diffusion layer (AGDL), and catalyst layer (ACL) thickness), a 3D numerical model based on COMSOL Multiphysics Software (version 6.1 COMSOL) is integrated with the Electrochemistry and Flow field distribution analysis. The primary design criteria in this study are centered on more even and consistent fluid pressure/velocity distributions, homogeneous water distribution, homogeneous species molar spreading along the flow channels, and efficient gas removal throughout the active area. which consequently enables the stack to operate at high pressure and high current density. Nature-inspired designs show their prominent characteristics such as low-pressure drops and effective fluid distribution. In turn homogeneous sufficient water sufficient removal.