L_CL 10[um] "Catalytic layer thickness"
L_GDL 200[um] "Gas diffusion layer thickness"
L_mem 30[um] "Membrane thickness"
L_MPL 20[um] "Microporous layer thickness"
a_CL 5e7[m^2/m^3] "Specific area, catalytic layer"
epsl_CL 0.2 "Ionomer volume fraction, catalytic layer"
epss_CL 0.4 "Electrode volume fraction, catalytic layer"
epss_GDL 0.4 "Solid phase volume fraction, gas diffusion layer"
epss_MPL 0.4 "Solid phase volume fraction, microporous layer"
epsg_CL 1-epss_CL-epsl_CL "Gas phase volume fraction, catalytic layers"
epsg_MPL 1-epss_MPL "Gas phase volume fraction, microporous layers"
epsg_GDL 1-epss_GDL "Gas phase volume fraction, gas diffusion layers"
sigmas_CL 25[S/m] "Electric conductivity, catalytic layer"
sigmas_GDL 100[S/m] "Electric conductivity, gas diffusion layer"
sigmas_MPL 50[S/m] "Electric conductivity, micro porous layer"
kappag_CL 1e-12[m^2] "Gas permeability, catalytic layer"
kappag_GDL 1e-10[m^2] "Gas permeability, gas diffusion layer"
kappag_MPL 1e-10[m^2] "Gas permeability, micro porous layer"
E_cell 1[V] "Cell potential"
i0_H2 1e2[A/m^2] "Exchange current density, hydrogen oxidation"
i0_O2 1e-4[A/m^2] "Exchange current density, oxygen reduction"
alphaa_O2 3 "Anodic transfer coefficient, oxygen reduction"
T0 70[degC] "External/initial temperature"
RH_an 85[%] "Inlet relative humidity, anode"
RH_cath 85[%] "Inlet relative humidity, cathode"
kappa_CL 0.3 "Thermal conductivity, catalytic layer"
kappa_MPL 0.3 "Thermal conductivity, microporous layer"
kappa_GDL 0.3 "Thermal conductivity, gas diffusion layer"