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Dynamic Model of a Crossflow Molten Carbonate Fuel Cell with Direct Internal Reforming (DIR-MCFC)

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons86318

Heidebrecht,  Peter
Process Systems Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

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

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

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Zitation

Heidebrecht, P., & Sundmacher, K. (2005). Dynamic Model of a Crossflow Molten Carbonate Fuel Cell with Direct Internal Reforming (DIR-MCFC). Journal of the Electrochemical Society, 152(11), A2217-A2228. doi:10.1149/1.2060692.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-9D03-3
Zusammenfassung
A dynamic model for a single, spatially distributed molten carbonate fuel cell (MCFC) in cross-flow configuration is presented. The equations are formulated in dimensionless terms and are based on balances of mass, enthalpy and charge. They include a detailed description of the electric potential field, reforming reactions inside the anode channel, mass transport resistance between the bulk gas phase and the electrochemical reaction zone inside the electrode pores, a catalytic combustion chamber and the recycling of cathode exhaust gas. The simulation yields transient and spatially distributed profiles of temperatures, concentrations, gas fluxes and current density as well as the cell voltage and the electric power over the full range of operating conditions. It therefore is a useful basis for system design, optimisation and control design of MCFC, applicable to any size of MCFC and transferable to other high temperature fuel cells like the SOFC. The complete set of model equations is presented in detail. Some exemplary steady state and transient simulation results are presented and compared to results from other models.