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The mathematical description of fuel cells is based on a system of time-dependent partial differential equations (of parabolic type) with a nonlinear source term. Our aim is the investigation of this system and the elaboration of different models (linear as well as nonlinear ones). This task requires sound numerical studies, which are not only missing from the existing literature, but are also indispensable for the real-time optimization of the operational parameters of the industrial applications because of reliability issues.
During the joint work, we have been studying this system of partial differential equations and constructing several numerical methods for its solution. From the beginning we have been making efforts to make it possible to further develop the modules in a simple way. In this manner we have been able to develop applications which can work with different numerical methods, different kinetics and four characteristic signals.

CellSim 0.80

• The second-generation fuel-cell model of the research group
• Developed in Visual C++ 2008
• Able to treat even heterogeneous parameter distribution
• Due to modern numerical methods even 200 times faster than its former version
• Applies Richardson extrapolation
• Results processible in Matlab
• Possibility of batch running

CellSim 0.80 during operation

FC-Sim 2.01

• First-generation fuel-cell model
• Developed inVisual Basic 6.0
• Assumes homogeneous parameter distribution
• Coupled oxygen concentration modelling
• Applies operator splitting
• Graphical user interface

The graphical user interface of FC-Sim 2.01