Planar and tubular solid oxide fuel cells: A comparison of transient process behaviors
(2005) 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX PV 2005-07. p.659-669- Abstract
- Two typical configurations of solid oxide fuel cells (SOFCs) are planar cross-flow and tubular counter-flow. Even though their performance is based on the same physical principles, their operation characteristics and parameters vary considerably due to different geometries. The goals of this paper are to detect the particularities of the cell geometries at transient operation and to identify their applicability for stationary power generation. This has been achieved by investigating the thermal and electrochemical performance of a planar and a tubular cell at different operation modes, i.e. load change, start-up, and shut-down. As the most relevant results of the transient SOFC analysis, the comparison of relaxation times and transient... (More)
- Two typical configurations of solid oxide fuel cells (SOFCs) are planar cross-flow and tubular counter-flow. Even though their performance is based on the same physical principles, their operation characteristics and parameters vary considerably due to different geometries. The goals of this paper are to detect the particularities of the cell geometries at transient operation and to identify their applicability for stationary power generation. This has been achieved by investigating the thermal and electrochemical performance of a planar and a tubular cell at different operation modes, i.e. load change, start-up, and shut-down. As the most relevant results of the transient SOFC analysis, the comparison of relaxation times and transient temperature gradients within the cell as well as the transients of the power density are presented and discussed. Relaxation times for different processes are shorter for the planar geometry, caused by its compactness. However, due to its longer spatial extension the tubular geometry is more advantageous concerning the level of temperature gradients within the cell. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/616056
- author
- Kemm, Miriam LU ; Stiller, Christoph ; Selimovic, Azra LU ; Thorud, Bjorn ; Torisson, Tord LU and Holland, Olav
- organization
- publishing date
- 2005
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Power density, Transient temperature, Tubular counter-flow, Tubular cells
- host publication
- Solid Oxide Fuel Cells: SOFC IX
- volume
- PV 2005-07
- pages
- 659 - 669
- publisher
- Electrochemical Society
- conference name
- 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX
- conference location
- Quebec, Canada
- conference dates
- 2005-05-15 - 2005-05-20
- external identifiers
-
- scopus:31744441657
- ISBN
- 1566774659
- language
- English
- LU publication?
- yes
- id
- c86ca793-3eea-4b75-8eea-ee82c0aaffb7 (old id 616056)
- date added to LUP
- 2016-04-04 09:56:20
- date last changed
- 2022-01-29 19:32:00
@inproceedings{c86ca793-3eea-4b75-8eea-ee82c0aaffb7,
abstract = {{Two typical configurations of solid oxide fuel cells (SOFCs) are planar cross-flow and tubular counter-flow. Even though their performance is based on the same physical principles, their operation characteristics and parameters vary considerably due to different geometries. The goals of this paper are to detect the particularities of the cell geometries at transient operation and to identify their applicability for stationary power generation. This has been achieved by investigating the thermal and electrochemical performance of a planar and a tubular cell at different operation modes, i.e. load change, start-up, and shut-down. As the most relevant results of the transient SOFC analysis, the comparison of relaxation times and transient temperature gradients within the cell as well as the transients of the power density are presented and discussed. Relaxation times for different processes are shorter for the planar geometry, caused by its compactness. However, due to its longer spatial extension the tubular geometry is more advantageous concerning the level of temperature gradients within the cell.}},
author = {{Kemm, Miriam and Stiller, Christoph and Selimovic, Azra and Thorud, Bjorn and Torisson, Tord and Holland, Olav}},
booktitle = {{Solid Oxide Fuel Cells: SOFC IX}},
isbn = {{1566774659}},
keywords = {{Power density; Transient temperature; Tubular counter-flow; Tubular cells}},
language = {{eng}},
pages = {{659--669}},
publisher = {{Electrochemical Society}},
title = {{Planar and tubular solid oxide fuel cells: A comparison of transient process behaviors}},
volume = {{PV 2005-07}},
year = {{2005}},
}