Computational modeling of a direct propane fuel cell

▶ The first two dimensional mathematical model of a complete direct propane fuel cell (DPFC) was described. ▶ Because ZrP-PTFE can operate at 150 °C there will be no liquid phase water and much less severe corrosion. ▶ By increasing the catalyst layer thickness the pressure drop between the reactant and product channels of interdigitated flow fields became acceptably small. ▶ By increasing the land's width the reactant's contact time increased and 100% propane conversion was approached. ▶ Neglecting proton diffusion, caused serious errors related to ZrP electrical potential, electron flux in Pt/C, and overpotential.