TY - GEN
T1 - Thermo-fluid analysis of a planar solid oxide fuel cell with an improved flow field by manifold and flow channel design
AU - Kim, Ji Young
AU - Kim, Dong Hwan
AU - Lee, Wooseok
AU - Lee, Sanghyeok
AU - Bae, Yonggyun
AU - Hong, Jongsup
N1 - Funding Information:
This work was financially supported by the Energy Technology Development Program of the Korea Institute of Energy Technology and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (no. 20193010032460), the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning(2017M1A2A2044989).
Publisher Copyright:
© The Electrochemical Society.
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85073222099&partnerID=8YFLogxK
U2 - 10.1149/09101.0255ecst
DO - 10.1149/09101.0255ecst
M3 - Conference contribution
AN - SCOPUS:85073222099
T3 - ECS Transactions
SP - 255
EP - 262
BT - Solid Oxide Fuel Cells 16, SOFC 2019
A2 - Eguchi, K.
A2 - Singhal, S. C.
PB - Electrochemical Society Inc.
T2 - 16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
Y2 - 8 September 2019 through 13 September 2019
ER -