Ibrahim H. Tawil
This study presents a MATLAB-based computational model for the thermochemical and electrochemical analysis of low-temperature technologies. The model accurately predicts thermodynamic limits and key performance indicators, including reversible cell voltage and hydrogen production, as a function of operating temperature. Findings consistently demonstrate that increasing temperature reduces the reversible cell potential and Gibbs free energy change (ΔG), As a result, it lowers the electrical energy consumption for water splitting and improves the rate of hydrogen production. This analysis has validated that operating the Electrolyser at higher temperatures results in consistently higher performing AEM (50-80C), AWE (60-90C), and PEM (50-100C) systems by lowering cell voltage, boosting the amount of hydrogen produced per minute and enhancing thermodynamic efficiency. It’s worth noting that PEMs provided the greatest yield at 9.52 L/min and AWEs gained the highest efficiency of 61.74%.