Networked solid oxide fuel cell stacks combined with a gas turbine cycle
(2002) Seventh Grove Fuel Cell Symposium 106(1-2). p.76-82- Abstract
- An improved design of fuel cells stacks arrangement has been suggested before for MCFC where reactant streams are ducted such that they are fed and recycled among multiple MCFC stacks in series. By networking fuel cell stacks, increased efficiency, improved thermal balance, and higher total reactant utilisation can be achieved. In this study, a combination of networked solid oxide fuel cell (SOFC) stacks and a gas turbine (GT) has been modelled and analysed. In such a combination, the stacks are operating in series with respect to the fuel flow. In previous studies conducted on hybrid SOFC/GT cycles by the authors, it was shown that the major part of the output of such cycles can be addressed to the fuel cell, In those studies, a single... (More)
- An improved design of fuel cells stacks arrangement has been suggested before for MCFC where reactant streams are ducted such that they are fed and recycled among multiple MCFC stacks in series. By networking fuel cell stacks, increased efficiency, improved thermal balance, and higher total reactant utilisation can be achieved. In this study, a combination of networked solid oxide fuel cell (SOFC) stacks and a gas turbine (GT) has been modelled and analysed. In such a combination, the stacks are operating in series with respect to the fuel flow. In previous studies conducted on hybrid SOFC/GT cycles by the authors, it was shown that the major part of the output of such cycles can be addressed to the fuel cell, In those studies, a single SOFC with parallel gas flows to individual cells were assumed. It can be expected that if the performance of the fuel cell is enhanced by networking, the overall system performance will improve. In the first part of this paper, the benefit of the networked stacks is demonstrated for a stand alone stack while the second part analyses and discusses the impact networking of the stacks has on the SOFC/GT system performance and design. For stacks with both reactant streams in series, a significant increase of system efficiency was found (almost 5% points), which, however, can be explained mainly by an improved thermal management. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/338567
- author
- Selimovic, Azra LU and Pålsson, Jens LU
- organization
- publishing date
- 2002
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- solid oxide fuel cell, multistage oxidation, mathematical modelling, combined cycles
- host publication
- Journal of Power Sources
- volume
- 106
- issue
- 1-2
- pages
- 76 - 82
- publisher
- Elsevier
- conference name
- Seventh Grove Fuel Cell Symposium
- conference location
- London, United Kingdom
- conference dates
- 2001-09-11 - 2001-09-13
- external identifiers
-
- wos:000175342800012
- scopus:0036535513
- ISSN
- 1873-2755
- 0378-7753
- DOI
- 10.1016/S0378-7753(01)01051-5
- language
- English
- LU publication?
- yes
- id
- fefe8f01-0376-4686-890c-292d8c6bc342 (old id 338567)
- date added to LUP
- 2016-04-01 12:15:49
- date last changed
- 2024-10-24 04:42:37
@inproceedings{fefe8f01-0376-4686-890c-292d8c6bc342,
abstract = {{An improved design of fuel cells stacks arrangement has been suggested before for MCFC where reactant streams are ducted such that they are fed and recycled among multiple MCFC stacks in series. By networking fuel cell stacks, increased efficiency, improved thermal balance, and higher total reactant utilisation can be achieved. In this study, a combination of networked solid oxide fuel cell (SOFC) stacks and a gas turbine (GT) has been modelled and analysed. In such a combination, the stacks are operating in series with respect to the fuel flow. In previous studies conducted on hybrid SOFC/GT cycles by the authors, it was shown that the major part of the output of such cycles can be addressed to the fuel cell, In those studies, a single SOFC with parallel gas flows to individual cells were assumed. It can be expected that if the performance of the fuel cell is enhanced by networking, the overall system performance will improve. In the first part of this paper, the benefit of the networked stacks is demonstrated for a stand alone stack while the second part analyses and discusses the impact networking of the stacks has on the SOFC/GT system performance and design. For stacks with both reactant streams in series, a significant increase of system efficiency was found (almost 5% points), which, however, can be explained mainly by an improved thermal management.}},
author = {{Selimovic, Azra and Pålsson, Jens}},
booktitle = {{Journal of Power Sources}},
issn = {{1873-2755}},
keywords = {{solid oxide fuel cell; multistage oxidation; mathematical modelling; combined cycles}},
language = {{eng}},
number = {{1-2}},
pages = {{76--82}},
publisher = {{Elsevier}},
title = {{Networked solid oxide fuel cell stacks combined with a gas turbine cycle}},
url = {{http://dx.doi.org/10.1016/S0378-7753(01)01051-5}},
doi = {{10.1016/S0378-7753(01)01051-5}},
volume = {{106}},
year = {{2002}},
}