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Structural design considerations for micromachined solid oxide fuel cells

Srikar, V.T., Turner, Kevin T., Ie, Tze Yung Andrew and Spearing, S. Mark (2004) Structural design considerations for micromachined solid oxide fuel cells Journal of Power Sources, 125, (1), pp. 62-69. (doi:10.1016/j.jpowsour.2003.07.002).

Record type: Article

Abstract

Micromachined solid-oxide fuel cells (?SOFCs) are among a class of devices being investigated for portable power generation. Optimization of the performance and reliability of such devices requires robust, scale-dependent, design methodologies. In this first analysis, we consider the structural design of planar, electrolyte-supported, ?SOFCs from the viewpoints of electrochemical performance, mechanical stability and reliability, and thermal behavior. The effect of electrolyte thickness on fuel cell performance is evaluated using a simple analytical model. Design diagrams that account explicitly for thermal and intrinsic residual stresses are presented to identify geometries that are resistant to fracture and buckling. Analysis of energy loss due to in-plane heat conduction highlights the importance of efficient thermal isolation in microscale fuel cell design.

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Published date: 2004
Keywords: portable power generation, solid-oxide fuel cell, MEMS

Identifiers

Local EPrints ID: 22779
URI: http://eprints.soton.ac.uk/id/eprint/22779
ISSN: 0378-7753
PURE UUID: 69e5a333-8f04-45fb-9989-a7452f8829c2

Catalogue record

Date deposited: 13 Mar 2006
Last modified: 17 Jul 2017 16:20

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Contributors

Author: V.T. Srikar
Author: Kevin T. Turner
Author: Tze Yung Andrew Ie

University divisions

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