Modelling and simulation of advanced Alkaline Water electrolysis

Abstract: Hydrogen being the future of green energy, one of the uses of renewable technology is hydrogen production from electrolysis. The water electrolyzer is a critical component of the direct energy interaction between hydrogen production and power supply fluctuations. Finally, the activation potential is higher by 80 % than the ohmic potential, even at the same current density. This research aims to investigate the I-V characteristics and the effects of ohmic and activation potential on the performance of an advanced alkaline water electrolyzer. The fundamental thermodynamic and electrochemical reaction equations were used to model an advanced alkaline electrolyzer and simulate MATLAB. When compared to published models tested against identical sets of experimental data, the model looked perfect.

Keywords: alkaline electrolyzer, I-V characteristics, MATLAB, activation potential, ohmic potential.