Thermo-fluid analysis of a planar solid oxide fuel cell with an improved flow field by manifold and flow channel design

Ji Young Kim, Dong Hwan Kim, Wooseok Lee, Sanghyeok Lee, Yonggyun Bae, Jongsup Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Degradation of solid oxide fuel cells caused by non-uniformity of physical properties such as temperature, pressure and species concentrations, attributed to thermo-electrochemical reaction, is a critical problem for both stack performance and durability. To improve the internal uniformity, a new manifold and flow channel design is devised and introduced in this study. The main goal of this study is to observe improvements of mass flow distribution and analyze thermal effects of the new design compared to a conventional design with parallel channels and cross-flow pattern. To conduct numerical simulation, a physical model that resolves the three-dimensional structure of a planar, solid oxide fuel cell and describes internal heat generation through heat box assumption is used. It is confirmed that difference between the maximum temperature and the minimum temperature of a unit-cell decreases from 94.4℃ to 56.0℃, and mass flow distribution is also formed as intended.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages255-262
Number of pages8
Edition1
ISBN (Electronic)9781607688747
DOIs
Publication statusPublished - 2019
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
Duration: 2019 Sep 82019 Sep 13

Publication series

NameECS Transactions
Number1
Volume91
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
CountryJapan
CityKyoto
Period19/9/819/9/13

ASJC Scopus subject areas

  • Engineering(all)

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