A transient three-dimensional mathematical model for the local impedance and polarization performance of planar SOFCS

Hayri Sezer, Jerry H. Mason, Ismail B. Celik, Harry Abernathy, William K. Epting, Thomas Kalapos, Gregory A. Hackett

Research output: Contribution to book or proceedingConference articlepeer-review

2 Scopus citations

Abstract

In the present work, a transient three-dimensional multi-physics model is used to predict the impedance and polarization behavior of a planar solid oxide fuel cell (SOFC) utilizing hydrogen under varying operation conditions and flow configurations. The mathematical model solves for species, charge, momentum and energy transport in the cell components and interconnects. The mathematical model presented in this work is used to investigate the local impedance spectra and the current density distribution in different regions of the cell. The polarization and impedance simulations are performed for the full 3D domain and locally by dividing the cell into three regions along the flow direction. Parametric studies on key operating conditions such as fuel utilization, air utilization, gas flow rates and composition are performed and the relative contributions to the polarization resistance of each parameter are quantified.

Original languageEnglish
Title of host publication17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
PublisherIOP Publishing Ltd.
Pages959-972
Number of pages14
Edition1
ISBN (Electronic)9781607685395
DOIs
StatePublished - 2021
Event17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, Sweden
Duration: Jul 18 2021Jul 23 2021

Publication series

NameECS Transactions
Number1
Volume103
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Country/TerritorySweden
CityStockholm
Period07/18/2107/23/21

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