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  Nonlinear analysis of current instabilities in high temperature fuel cells

Mangold, M., Krasnyk, M., & Sundmacher, K. (2004). Nonlinear analysis of current instabilities in high temperature fuel cells. Chemical Engineering Science, 59, 4869-4877. doi: 10.1016/j.ces.2004.07.094.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-9E87-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-FCBB-1
Genre: Journal Article

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 Creators:
Mangold, M.1, Author              
Krasnyk, M.1, Author              
Sundmacher, K.2, 3, Author              
Affiliations:
1Process Synthesis and Process Dynamics, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738153              
2Process Systems Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738151              
3Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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 Abstract: The conductivity of electrolytes in high temperature fuel cells increases with increasing temperature. It is shown that this property may lead to instabilities, inhomogeneous temperature fields, and hot spots. A simple spatially one-dimensional model of a cell is studied by phase plane analysis and numerical bifurcation analysis. The operation of the cell at constant voltage and at constant current is considered. It is found that in both cases spatial temperature patterns and channels of high current density can form. © 2004 Elsevier Ltd. All rights reserved. [accessed 2014 January 10th]

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Language(s): eng - English
 Dates: 2004
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 207956
Other: 27/04
DOI: 10.1016/j.ces.2004.07.094
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Title: Chemical Engineering Science
  Other : Chem. Eng. Sci.
Source Genre: Journal
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Publ. Info: Amsterdam : Pergamon
Pages: - Volume / Issue: 59 Sequence Number: - Start / End Page: 4869 - 4877 Identifier: ISSN: 0009-2509
CoNE: /journals/resource/954925389239