W_ch 0.5[mm] "Channel width" W_rib W_ch*3 "Rib width" L_ch 10[mm] "Channel length" N_ch 3 "Number of channels" H_gde 0.1[mm] "Gas diffusion electrode thickness" H_ch W_ch "Channel height" H_el H_gde "Electrolyte layer thickness" D_cell N_ch*(W_ch+W_rib) "Cell depth (in y-direction)" W_cell L_ch+2*W_ch+W_rib "Cell width (in x-direction)" H_cell H_gde*2+H_el+H_ch "Cell thickness (in z-direction)"