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), 62-69. (doi:10.1016/j.jpowsour.2003.07.002).
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Micromachined solid-oxide fuel cells (μSOFCs) 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, μSOFCs 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.
|Digital Object Identifier (DOI):||doi:10.1016/j.jpowsour.2003.07.002|
|Keywords:||portable power generation, solid-oxide fuel cell, MEMS|
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences
|Date Deposited:||13 Mar 2006|
|Last Modified:||06 Aug 2015 02:21|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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