Research Article
An Investigation of Direct Hydrocarbon (Propane) Fuel Cell Performance Using Mathematical Modeling
Table 1
Operational, electrochemical, and design parameters of the reference case of the DPFC model (see [
28]).
| | Parameter | Value |
| | Temperature, T | 423 K | | Pressure, P | 1 atm | | Propane inlet molar flow rate, | 8x10−6 gmol s−1 | | Propane inlet mole fraction, | 0.1 | | Reference exchange current density at the anode, | 7x10−5 A | | Reference exchange current density at the cathode, | 3x10−8 A | | Proton diffusivity coefficient in the electrolyte (ZrP) phase, | 3x10−9 m2 s−1 | | Water diffusivity coefficient in the electrolyte (ZrP) phase, | 2x10−8 m2 s−1 | | Proton-water diffusivity coefficient, | 1.32x10−8 m2 s−1 | | Proton conductivity in the electrolyte (membrane) layer, | 5 S m−1 | | Specific surface area of anode and cathode carbon catalyst support, , | 200 | | Land width, | 4.4 mm | | Anode and cathode thickness, , | 300 μm | | Membrane thickness, | 100 μm | | Fluid channels width in bi-polar plates | 0.2 mm | | Electrical resistivity in membrane, | 1x1016 Ω m | | Charge transfer coefficients, and | 1 |
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