Reversible PEMFC system

The dynamic model of a PEMFC can be realized in MATLAB and Simulink software for implementation in power systems [10]. Beginning with hydrogen flow, the three significant factors are input, output, and reaction flows during operahon [11]. The thermodynamic potential of the chemical energy that can be converted into electrical energy is derived from Nernst s law and is dependent on the partial pressures of the reactants and temperature. For reaction kinetic considerahon, overpotentials at both anode and cathode essentially constitute the energy required to drive a reaction beyond the state of thermodynamic reversibility. 

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