Thermodynamic Analysis of a Conceptual Fixed-Bed Solar Thermochemical Cavity Receiver–Reactor Array for Water Splitting Via Ceria Redox Cycling

We propose a novel solar thermochemical receiver–reactor array concept for hydrogen production via ceria redox cycling. The can improve the solar-to-fuel efficiency by realizing heat recuperation, reduction, and oxidation processes synchronously. A linear matrix model lumped parameter are developed to predict thermal performance of new system. system is characterized recovery effectiveness solid-phase efficiency. Investigated parameters include reduction temperature, oxygen partial pressure, number receiver–reactors, concentration ratio, gas-phase effectiveness. For baseline conditions, found be 81% 27%, respectively. perfect ratio 5,000, exceeds 40%.