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Constructing COMSOL Models of a Bacteriological Fuel Cell

R. Coker1 J. Mansell1
1NASA - Marshall Space Flight Center, Huntsville, AL, USA

Mock-up of the fuel-cell setup showing the migration of protons from the anode (left) to the cathode (right). Higher H+ density is in red, while lower density is in blue.

We have started constructing preliminary design COMSOL models of a bacteriologically driven 'fuel cell' that is intended to process waste products, such as carbon dioxide and brine, from a crewed vehicle. At this early stage, this complex system is reduced to two electrodes separated by a membrane. The electrolyte is a brine appropriate for growing methanogenic bateria, though none are present as yet. Initial models will be presented.

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