Research Article

Modeling and Behavior Analysis of a Membraneless Fuel Cell

Table 1

Parameters used in the simulations of the membraneless fuel cell: first without reaction at electrodes and second considering an Arrhenius-like electric reaction on the anode. Most of them have been chosen according to experimental designs reported in [17, 18].

ParameterValueDescription

ρ1000 kg/m3Density of the fluid
η0.001 Pa·sDynamic viscosity of the fluid
𝑈 0 0.1 mm/sMean inflow velocity
𝜀 𝑟 78.3Relative electric permittivity of the fluid
ζ−0.07 VZeta-potential on the wall fluid boundary
w8.2 × 10−13 mol·s/kgMobility coefficient
D2 × 10−9 m2/sDiffusion coefficient
𝑐 0 0.5 × 10−10 mol/m3Initial concentration
𝜙 0 2 × 103 VInitial electric potential
T293.15°KAbsolute temperature
κ4.459 × 109Constant for electric displacement
𝑖 0 0.05 A/m2Exchange current density at anode
𝛼 𝑎 , 𝛼 𝑐 0.5Anodic, cathodic charge transfer coefficients