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Recent advances in single-chamber fuel-cells: Experiment and modeling

Hao, Yong and Shao, Zongping and Mederos, Jennifer and Lai, Wei and Goodwin, David G. and Haile, Sossina M. (2006) Recent advances in single-chamber fuel-cells: Experiment and modeling. Solid State Ionics, 177 (19-25). pp. 2013-2021. ISSN 0167-2738. https://resolver.caltech.edu/CaltechAUTHORS:20110602-080336170

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Abstract

Single-chamber fuel cells (SCFC) are ones in which the fuel and oxidizer are premixed, and selective electrode catalysts are used to generate the oxygen partial pressure gradient that in a conventional dual-chamber design is produced by physical separation of the fuel and oxidizer streams. SCFCs have been shown capable of generating power densities above 700 mW/cm^2 with appropriate catalysts, making them potentially useful in many applications where the simplicity of a single gas chamber and absence of seals offsets the expected lower efficiency of SCFCs compared to dual-chamber SOFCs. SCFC performance is found to depend sensitively on cell microstructure, geometry, and flow conditions, making experimental optimization tedious. In this paper, we describe recent work focused on developing a quantitative understanding the physical processes responsible for SCFC performance, and the development of an experimentally-validated, physically-based numerical model to allow more rational design and optimization of SCFCs. The use of the model to explore the effects of fuel/oxidizer ratio, anode thickness, and flow configuration is discussed.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.ssi.2006.05.008DOIArticle
http://www.sciencedirect.com/science/article/pii/S0167273806002876PublisherArticle
ORCID:
AuthorORCID
Haile, Sossina M.0000-0002-5293-6252
Additional Information:© 2006 Elsevier B.V. Received 16 January 2006; received in revised form 6 May 2006; accepted 6 May 2006. This work was supported by the DoD Defense Advanced Research Projects Agency (DARPA) within the Integrated Micropower Generator (IMG) program under grant N66001-01-1-8966. We greatly appreciate the constructive suggestions of Dr. Carlos Pantano.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N66001-01-1-8966
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Subject Keywords:solid oxide fuel cell; single chamber; hydrocarbon fuels; experiment and simulation
Issue or Number:19-25
Record Number:CaltechAUTHORS:20110602-080336170
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110602-080336170
Official Citation:Yong Hao, Zongping Shao, Jennifer Mederos, Wei Lai, David G. Goodwin, Sossina M. Haile, Recent advances in single-chamber fuel-cells: Experiment and modeling, Solid State Ionics, Volume 177, Issues 19-25, Solid State Ionics 15: Proceedings of the 15th International Conference on Solid State Ionics, Part I, 15 October 2006, Pages 2013-2021, ISSN 0167-2738, DOI: 10.1016/j.ssi.2006.05.008. (http://www.sciencedirect.com/science/article/pii/S0167273806002876)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23863
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Jun 2011 19:00
Last Modified:03 Oct 2019 02:50

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