Two-layer hydrodynamic network model for redox flow battery stack with flow field design

Jinho Ha, Yun Young Choi, Youngkwon Kim, Je Nam Lee, Jung Il Choi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A two-layer hydrodynamic network model is proposed to analyze the electrolyte distribution within a redox flow battery (RFB). The proposed model consists of a channel, a porous electrode, and an interconnection part through which the electrolyte flows through the channel and porous electrode. The flow rate and pressure drop of each network component are calculated using the Hardy-Cross method. The predicted pressure drop is consistent with experimental and three-dimensional computational fluid dynamics (CFD) results. The velocity and pressure distributions are also in good agreement with CFD results. Furthermore, the proposed model analyzes the flow distribution of cells in RFB stacks with different flow field designs. The results show that the flow rate difference between the first and last cells of the RFB stack with an interdigitated flow field is 20 times higher than that of a flow-through-type.

Original languageEnglish
Article number123626
JournalInternational Journal of Heat and Mass Transfer
Volume201
DOIs
Publication statusPublished - 2023 Feb

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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