develop models for both PV and PEM hydrogen production systems
and construct experimental setups for photovoltaic and photothermal PEM water electrolysis (PVPT-PEM)with various coupling configurations to explore the operational strategies of PV and photothermal-coupled PEM hydrogen production systems. Simulation and experimental results show that the hydrogen production rate of the direct-coupled PV system varies with solar irradiance. Under the same operating conditions
this system shows lower losses but suffers from reduced hydrogen production stability. In contrast
the indirect-coupled system is less affected by weather conditions
allowing for stable and continuous hydrogen production
although with increased system complexity. The independent photothermal system more effectively maintains the electrolyte temperature within the range of 50-80 ℃.
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references
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