Effect of bi-layer interconnector design on mass transfer performance in porous anode of solid oxide fuel cells
(2011) In International Journal of Heat and Mass Transfer 54(9-10). p.1994-2003- Abstract
- We propose a novel interconnector design, termed bi-layer interconnector, for solid oxide fuel cells (SOFCs). It can disturb the fuel gas and air on the planes normal to the SOFC three-phase-boundary (TPB) layer. In this paper, a two-dimensional half-cell model is developed to study the concentration overpotentials in the fuel side of the SOFC stack with conventional and novel bi-layer interconnectors. The numerical results show that the novel bi-layer interconnector can increase the velocity of the fuel gas in the porous anode. The results of mole fraction distribution illustrate that the novel bi-layer interconnector can effectively disturb the fuel flow. The average H-2 mole fraction in the porous anode of SOFC with bi-layer... (More)
- We propose a novel interconnector design, termed bi-layer interconnector, for solid oxide fuel cells (SOFCs). It can disturb the fuel gas and air on the planes normal to the SOFC three-phase-boundary (TPB) layer. In this paper, a two-dimensional half-cell model is developed to study the concentration overpotentials in the fuel side of the SOFC stack with conventional and novel bi-layer interconnectors. The numerical results show that the novel bi-layer interconnector can increase the velocity of the fuel gas in the porous anode. The results of mole fraction distribution illustrate that the novel bi-layer interconnector can effectively disturb the fuel flow. The average H-2 mole fraction in the porous anode of SOFC with bi-layer interconnector is about 4.7% higher than that of conventional SOFC. The average H-2 mole fraction at TPB interface is about 9.2% higher. The concentration overpotential of the novel SOFC design is lower than that of the conventional SOFC design by 5%. It can enhance the mass transfer in porous electrode and improve the performance of SOFC. (C) 2011 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1925338
- author
- Chen, Qiuyang ; Wang, Qiuwang ; Zhang, Jian and Yuan, Jinliang LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Solid oxide fuel cell, Bi-layer interconnector, Mass transfer, Concentration polarization, Half-cell model, Numerical simulation
- in
- International Journal of Heat and Mass Transfer
- volume
- 54
- issue
- 9-10
- pages
- 1994 - 2003
- publisher
- Pergamon Press Ltd.
- external identifiers
-
- wos:000289011700030
- scopus:79952282787
- ISSN
- 0017-9310
- DOI
- 10.1016/j.ijheatmasstransfer.2011.01.003
- language
- English
- LU publication?
- yes
- id
- c7911c3b-f4a4-4331-861b-81394d5338ed (old id 1925338)
- date added to LUP
- 2016-04-01 10:26:45
- date last changed
- 2022-04-27 22:08:35
@article{c7911c3b-f4a4-4331-861b-81394d5338ed,
abstract = {{We propose a novel interconnector design, termed bi-layer interconnector, for solid oxide fuel cells (SOFCs). It can disturb the fuel gas and air on the planes normal to the SOFC three-phase-boundary (TPB) layer. In this paper, a two-dimensional half-cell model is developed to study the concentration overpotentials in the fuel side of the SOFC stack with conventional and novel bi-layer interconnectors. The numerical results show that the novel bi-layer interconnector can increase the velocity of the fuel gas in the porous anode. The results of mole fraction distribution illustrate that the novel bi-layer interconnector can effectively disturb the fuel flow. The average H-2 mole fraction in the porous anode of SOFC with bi-layer interconnector is about 4.7% higher than that of conventional SOFC. The average H-2 mole fraction at TPB interface is about 9.2% higher. The concentration overpotential of the novel SOFC design is lower than that of the conventional SOFC design by 5%. It can enhance the mass transfer in porous electrode and improve the performance of SOFC. (C) 2011 Elsevier Ltd. All rights reserved.}},
author = {{Chen, Qiuyang and Wang, Qiuwang and Zhang, Jian and Yuan, Jinliang}},
issn = {{0017-9310}},
keywords = {{Solid oxide fuel cell; Bi-layer interconnector; Mass transfer; Concentration polarization; Half-cell model; Numerical simulation}},
language = {{eng}},
number = {{9-10}},
pages = {{1994--2003}},
publisher = {{Pergamon Press Ltd.}},
series = {{International Journal of Heat and Mass Transfer}},
title = {{Effect of bi-layer interconnector design on mass transfer performance in porous anode of solid oxide fuel cells}},
url = {{http://dx.doi.org/10.1016/j.ijheatmasstransfer.2011.01.003}},
doi = {{10.1016/j.ijheatmasstransfer.2011.01.003}},
volume = {{54}},
year = {{2011}},
}