The Energy and Exergy Analysis of Integrated Hydrogen Production System Using High Temperature Steam Electrolysis with Optimized Water Path (RESEARCH NOTE)


1 Department of Energy Systems Engineering, Petroleum University of Technology, Mahmoodabad, Iran

2 Department of Mechanical Engineering, Petroleum University of Technology, Abadan, Iran

3 Department of Process, Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran


In this research, solar-drived integrated Hydrogen production (HP) using high-temperature steam electrolysis (HTSE) is thermodynamically evaluated. This system includes an organic Rankine cycle (ORC), Rankine cycle, Brayton cycle, solar tower, and High Temperature Steam Electrolysis (HTSE). Solar energy supplies thermal energy. This heat source is applied for generating power. This energy is used for HTSE due to its demand in the form of electricity. First, we calculated inlet and outlet energy and their rates for whole subsystems. The results showed 50.77% overall and 31.63% exergy efficiencies related to power generation section and 92.85% overall energy and 91% exergy efficiencies related to hydrogen production section. Also in this research we found the importance of auxiliary equipment. Auxiliary equipment helps that significant amount of hydrogen production to be saved. This amount at 577 K is equal that produces 0.093 kg H2/s


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