W_rib 0.7[mm] Rib width
W_ch 0.8[mm] Channel width
W_plate 50[mm] Plate width
H_ch W_ch Channel height
H_gdl 0.5[mm] Gdl height
W_ribch W_rib+W_ch Channel-to-channel distance
N_ch 3 Number of channels
r_ch 0.25[mm] Inner radius of channel corners
E_cell 0.4[V] Cell Voltage
E_ocv 1.23[V] Open circuit voltage
R 0.285[ohm*cm^2] Lumped anode + membrane resistance
T 180+273.15[K] Cell temperature
cO2_ref 40.88[mol/m^3] Oxygen reference concentration
eps_gdl 0.4 GDL porosity
kappa_gdl 1.18e-11[m^2] GDL permeability
wH2O_in 0.023 Inlet H2O mass fraction (cathode)
wO2_in 0.228 Inlet oxygen mass fraction (cathode)
U_in 2[m/s] Inlet velocity
mu 2.46e-5[Pa*s] Fluid viscocity
MN2 0.028[kg/mol] Nitrogen molar mass
MH2O 0.018[kg/mol] Water molar mass
MO2 0.032[kg/mol] Oxygen molar mass
D_N2_H2O 2.56e-5*(T/307.15[K])^1.75[m^2/s] N2-H2O Binary diffusion coefficient
D_O2_N2 2.2e-5*(T/293.2[K])^1.75[m^2/s] O2-N2 binary diffusion coefficient
D_O2_H2O 2.82e-5*(T/308.1[K])^1.75[m^2/s] O2-H2O binary diffusion coefficient
p_ref 101e3[Pa] Reference pressure
alpha_c log(10)*R_const*T/(F_const*95[mV]) Cathodic transfer coefficient