Investigation of infiltration via multi-physics simulation tool with realistic microstructure properties

Tao Yang, Ismail B. Celik, Hayri Sezer, Shiwoo Lee, Kirk Gerdes

Research output: Contribution to book or proceedingConference articlepeer-review

11 Scopus citations

Abstract

Infiltration is a potential method to improve the performance of SOFCs. The purpose of this study is to investigate the effects of infiltration via multi-physics simulation tools with realistic microstructure properties. The physics-based simulation tool is developed to extract the properties of fuel cells based on the measured polarization curves and impedance behavior for different fuel/air utilization cases, which has been verified in our previous work. Furthermore, we incorporate the microstructure properties distribution within the electrodes of realistic SOFC. These structural properties are either obtained from experiments (e.g. volume fraction) or calculated based on percolation theory (e.g. interface area, length of triple phase boundary, etc.). In this study, we apply the previously developed simulation tool to analyze both the baseline button cell and the one with infiltrated cathode. The performances of both cells are predicted with the multi-physics numerical simulation and compared against experimental data. In addition, the performances of baseline cell and cathode-infiltrated cell with working loads are predicted. Finally, the properties of both cells are extracted and compared to show the effects of infiltration. The results will help us better understand and improve the infiltration processes.

Original languageEnglish
Title of host publicationSolid-Gas Electrochemical Interfaces � SGEI 1
EditorsE. Ivers-Tiffee, M. B. Mogensen, S. B. Adler, T. Kawada
PublisherElectrochemical Society Inc.
Pages137-142
Number of pages6
Edition2
ISBN (Electronic)9781607685395
DOIs
StatePublished - 2015
Event1st Symposium on Solid-Gas Electrochemical Interfaces, SGEI 2015 - 227th ECS Meeting - Chicago, United States
Duration: May 24 2015May 28 2015

Publication series

NameECS Transactions
Number2
Volume66
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference1st Symposium on Solid-Gas Electrochemical Interfaces, SGEI 2015 - 227th ECS Meeting
Country/TerritoryUnited States
CityChicago
Period05/24/1505/28/15

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