Three-dimensional CFD modeling of transport phenomena in anode-supported planar SOFCs
(2014) In Heat and Mass Transfer 50(11). p.1575-1586- Abstract
- In this study, a three-dimensional computational fluid dynamics model has been developed for an anode-supported planar SOFC. The conservation equations of mass, momentum, species/charges and thermal energy are solved by finite volume method for a complete unit cell consisting of 13 parallel channels in both anode and cathode. The simulation results of the developed model are well in agreement with the experimental data obtained at same conditions. In this study, the co-flow arrangement with hydrogen utilization of 60 % and operating voltage of 0.7 V is used as the base case, and compared with the counter-flow arrangement. The predicted results reveals that the maximum temperature obtained in the counter-flow arrangement is about 10 A... (More)
- In this study, a three-dimensional computational fluid dynamics model has been developed for an anode-supported planar SOFC. The conservation equations of mass, momentum, species/charges and thermal energy are solved by finite volume method for a complete unit cell consisting of 13 parallel channels in both anode and cathode. The simulation results of the developed model are well in agreement with the experimental data obtained at same conditions. In this study, the co-flow arrangement with hydrogen utilization of 60 % and operating voltage of 0.7 V is used as the base case, and compared with the counter-flow arrangement. The predicted results reveals that the maximum temperature obtained in the counter-flow arrangement is about 10 A degrees C lower than that of co-flow, but the counter-flow arrangement has a higher temperature gradient between the respective anodes and cathodes in a cross-section normal to the main flow direction, especially in the air inlet region of the cell (x = 0.04 m),which is very harmful to the lifetime of materials. The current density is very unevenly distributed along and normal to the flow direction for both the co- and counter-flow arrangements, and the maximum values occur at junctions of the electrodes, channels and ribs, which causes higher over-potentials and ohmic heating. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4876069
- author
- Zhang, Zhonggang ; Yue, Danting ; He, Changrong ; Ye, Shuang ; Wang, Weiguo and Yuan, Jinliang LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Heat and Mass Transfer
- volume
- 50
- issue
- 11
- pages
- 1575 - 1586
- publisher
- Springer
- external identifiers
-
- wos:000343753800009
- scopus:84911006546
- ISSN
- 1432-1181
- DOI
- 10.1007/s00231-014-1356-7
- language
- English
- LU publication?
- yes
- id
- 1fd04146-c8ce-40b0-baa0-c25ae7640b98 (old id 4876069)
- date added to LUP
- 2016-04-01 10:28:27
- date last changed
- 2022-02-02 18:08:01
@article{1fd04146-c8ce-40b0-baa0-c25ae7640b98,
abstract = {{In this study, a three-dimensional computational fluid dynamics model has been developed for an anode-supported planar SOFC. The conservation equations of mass, momentum, species/charges and thermal energy are solved by finite volume method for a complete unit cell consisting of 13 parallel channels in both anode and cathode. The simulation results of the developed model are well in agreement with the experimental data obtained at same conditions. In this study, the co-flow arrangement with hydrogen utilization of 60 % and operating voltage of 0.7 V is used as the base case, and compared with the counter-flow arrangement. The predicted results reveals that the maximum temperature obtained in the counter-flow arrangement is about 10 A degrees C lower than that of co-flow, but the counter-flow arrangement has a higher temperature gradient between the respective anodes and cathodes in a cross-section normal to the main flow direction, especially in the air inlet region of the cell (x = 0.04 m),which is very harmful to the lifetime of materials. The current density is very unevenly distributed along and normal to the flow direction for both the co- and counter-flow arrangements, and the maximum values occur at junctions of the electrodes, channels and ribs, which causes higher over-potentials and ohmic heating.}},
author = {{Zhang, Zhonggang and Yue, Danting and He, Changrong and Ye, Shuang and Wang, Weiguo and Yuan, Jinliang}},
issn = {{1432-1181}},
language = {{eng}},
number = {{11}},
pages = {{1575--1586}},
publisher = {{Springer}},
series = {{Heat and Mass Transfer}},
title = {{Three-dimensional CFD modeling of transport phenomena in anode-supported planar SOFCs}},
url = {{http://dx.doi.org/10.1007/s00231-014-1356-7}},
doi = {{10.1007/s00231-014-1356-7}},
volume = {{50}},
year = {{2014}},
}