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Three-Dimensional CFD Modeling of Transport Phenomena in a Cross-Flow Anode-Supported Planar SOFC

Zhang, Zhonggang; Chen, Jingfeng; Yue, Danting; Yang, Guogang; Ye, Shuang; He, Changrong; Wang, Weiguo; Yuan, Jinliang LU and Huang, Naibao (2014) In Energies 7(1). p.80-98
Abstract
In this study, a three-dimensional computational fluid dynamics (CFD) model is developed for an anode-supported planar SOFC from the Chinese Academy of Science Ningbo Institute of Material Technology and Engineering (NIMTE). The simulation results of the developed model are in good agreement with the experimental data obtained under the same conditions. With the simulation results, the distribution of temperature, flow velocity and the gas concentrations through the cell components and gas channels is presented and discussed. Potential and current density distributions in the cell and overall fuel utilization are also presented. It is also found that the temperature gradients exist along the length of the cell, and the maximum value of the... (More)
In this study, a three-dimensional computational fluid dynamics (CFD) model is developed for an anode-supported planar SOFC from the Chinese Academy of Science Ningbo Institute of Material Technology and Engineering (NIMTE). The simulation results of the developed model are in good agreement with the experimental data obtained under the same conditions. With the simulation results, the distribution of temperature, flow velocity and the gas concentrations through the cell components and gas channels is presented and discussed. Potential and current density distributions in the cell and overall fuel utilization are also presented. It is also found that the temperature gradients exist along the length of the cell, and the maximum value of the temperature for the cross-flow is at the outlet region of the cell. The distribution of the current density is uneven, and the maximum current density is located at the interfaces between the channels, ribs and the electrodes, the maximum current density result in a large over-potential and heat source in the electrodes, which is harmful to the overall performance and working lifespan of the fuel cells. A new type of flow structure should be developed to make the current flow be more evenly distributed and promote most of the TPB areas to take part in the electrochemical reactions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
simulation, cross-flow, electrochemical reaction, 3D CFD model, transfer, phenomena
in
Energies
volume
7
issue
1
pages
80 - 98
publisher
MDPI AG
external identifiers
  • wos:000336183300006
  • scopus:84893395171
ISSN
1996-1073
DOI
10.3390/en7010080
language
English
LU publication?
yes
id
ed18c0c1-b8cc-494e-a771-06b84495320f (old id 4559643)
date added to LUP
2014-07-18 10:30:48
date last changed
2017-07-30 04:05:03
@article{ed18c0c1-b8cc-494e-a771-06b84495320f,
  abstract     = {In this study, a three-dimensional computational fluid dynamics (CFD) model is developed for an anode-supported planar SOFC from the Chinese Academy of Science Ningbo Institute of Material Technology and Engineering (NIMTE). The simulation results of the developed model are in good agreement with the experimental data obtained under the same conditions. With the simulation results, the distribution of temperature, flow velocity and the gas concentrations through the cell components and gas channels is presented and discussed. Potential and current density distributions in the cell and overall fuel utilization are also presented. It is also found that the temperature gradients exist along the length of the cell, and the maximum value of the temperature for the cross-flow is at the outlet region of the cell. The distribution of the current density is uneven, and the maximum current density is located at the interfaces between the channels, ribs and the electrodes, the maximum current density result in a large over-potential and heat source in the electrodes, which is harmful to the overall performance and working lifespan of the fuel cells. A new type of flow structure should be developed to make the current flow be more evenly distributed and promote most of the TPB areas to take part in the electrochemical reactions.},
  author       = {Zhang, Zhonggang and Chen, Jingfeng and Yue, Danting and Yang, Guogang and Ye, Shuang and He, Changrong and Wang, Weiguo and Yuan, Jinliang and Huang, Naibao},
  issn         = {1996-1073},
  keyword      = {simulation,cross-flow,electrochemical reaction,3D CFD model,transfer,phenomena},
  language     = {eng},
  number       = {1},
  pages        = {80--98},
  publisher    = {MDPI AG},
  series       = {Energies},
  title        = {Three-Dimensional CFD Modeling of Transport Phenomena in a Cross-Flow Anode-Supported Planar SOFC},
  url          = {http://dx.doi.org/10.3390/en7010080},
  volume       = {7},
  year         = {2014},
}