An Investigation of Direct Hydrocarbon (Propane) Fuel Cell Performance Using Mathematical Modeling

Figure 4

The effect of the cathode reference exchange current density, (A/m²), on the polarization curve for a direct propane fuel cell (DPFC) model at 150°C and 1 atm. The values of (A/m²) for the above three cases were represented by the following symbols: (i) open circles: 3x10⁻⁷ A/m², (ii) solid diamonds: 3x10⁻⁹ A/m² (reference case), and (iii) open triangles: 3x10⁻¹² A/m². All the other parameters were the same as the reference case mentioned in Table 1.