de.mpg.escidoc.pubman.appbase.FacesBean
English
 
Help Guide Disclaimer Contact us Login
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Nonlinear analysis of current instabilities in high temperature fuel cells

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons86397

Mangold,  M.
Process Synthesis and Process Dynamics, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons86373

Krasnyk,  M.
Process Synthesis and Process Dynamics, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons86497

Sundmacher,  K.
Process Systems Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;
Otto-von-Guericke-Universität Magdeburg, External Organizations;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

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.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-9E87-6
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]