ict_c io_c*(exp(0.5*F*eta/(Rg*T))-x_w1_chms*(c_tot/c_o2ref)*exp(-0.5*F*eta/(Rg*T))) Cathode charge transfer current ict_a io_a*x_w4_chms2*(c_tot/c_h2ref)*(exp(0.5*F*eta/(Rg*T))-exp(-0.5*F*eta/(Rg*T))) Anode charge transfer current rho_c p/(Rg*T)*(x_w1_chms*Mo2+x_w2_chms*Mh2o+x_w3_chms*Mn2) Cathode gas density rho_a p/(Rg*T)*(x_w4_chms2*Mh2+x_w5_chms2*Mh2o) Anode gas density V_cell dphieq_c-dphieq_a-V_pol Cell voltage P_out j_ec*V_cell Total output power