Performance of Alkaline Water Electrolysis Cell in Generating Hydrogen-Oxygen Mixture Gas under Atmospheric Pressure

This paper focuses on evaluating the performance of an alkaline electrolysis cell. The work examined the effect of KOH concentration, applied voltage, electrode plate thickness, and electrode spacing. The results show that as the concentration of KOH increases from 1 g/L to 6 g/L, the efficiency increases from 47% to 57%. The results also show an optimal operating supply voltage of between 2.2 and 2.4 Volts. In addition, the results show that increasing the distance between the electrodes decreases both the efficiency and HHO generation.