W_rib 0.8[mm] "Rib width"
W_ch 0.8[mm] "Channel width"
W_ribch W_rib+W_ch "Rib+channel width"
N_ch 2 "Number of channels"
W_act N_ch*(W_ribch) "Active area width"
H_act 5[cm] "Active area height"
H_ch 0.8[mm] "Channel height"
ang 45[deg] "Channel bend angle in manifolds"
R_inner 2[mm] "Inner radius of bends"
H_gdl 150[um] "GDL thickness"
H_mem 9[um] "Membrane thickness"