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Flow Distribution Analysis in the SOFC Stack Using CFD Technique

[+] Author Affiliations
Cheng Zhao, Cun Wang, Tao Zhang, Jian Pu

Huazhong University of Science & Technology, Wuhan, China

Paper No. FUELCELL2017-3177, pp. V001T02A003; 8 pages
doi:10.1115/FUELCELL2017-3177
From:
  • ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2017 Power Conference Joint With ICOPE-17, the ASME 2017 11th International Conference on Energy Sustainability, and the ASME 2017 Nuclear Forum
  • ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 978-0-7918-4056-6
  • Copyright © 2017 by ASME

abstract

In this paper, a three dimensional solid oxide fuel cell (SOFC) model is constructed to investigate the gas distribution and the pressure variation in the external manifold stack by a computational fluid dynamics (CFD) approach. Several geometric parameters of external manifold stack, including the position of inlet tube, depth of the manifold and the channel resistance are optimized to achieve uniform gas distributions among the channels. Simulation results indicate that a gas distributor can enhance the flow uniformity effectively. Besides, with the increasing depth of the manifold, the flow tends to be more uniform in T-manifold but has a small impact on C-manifold stack. It is also shown that flow distribution is intensively enhanced with the raise of resistance, especially from 0Pa to 100Pa. Modeling results highlight the importance of manifold and channel structure design for external manifold stack and can be widely applied to design the geometric parameters.

Copyright © 2017 by ASME

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