L_nail 30[mm] Nail length sigma 0.005[S/m] Electrolyte conductivity Eeq_Zn -0.763[V] Zn equilibrium potential i0_Zn 1e-3[A/m^2] Zinc oxidation exchange current density A_Zn 0.12[V] Zinc oxidation tafel slope Eeq_O2 1.229[V] Oxygen reduction equilibrium potential i0_O2_on_Zn 1e-10[A/m^2] Oxygen reduction exchange current density on zinc A_O2_on_Zn -0.25[V] Oxygen reduction tafel slope on zinc i0_O2_on_Fe 1e-8[A/m^2] Oxygen reduction exchange current density on iron A_O2_on_Fe -0.25[V] Oxygen reduction tafel slope on iron Eeq_Fe -0.409[V] Iron oxidation equilibrium potential i0_Fe 1e-4[A/m^2] Iron oxidation exchange current density A_Fe 0.41[V] Tafel slope iron oxidation D_O2 1e-7[m^2/s] Effective oxygen diffusion coefficient in wet wood c_O2_ref 0.2[mol/m^3] Oxygen reference concentration