High-temperature two-layer integrated receiver storage for concentrating solar power systems

Abstract An integrated receiver storage for a beam-down concentrating solar power (CSP) plant enables simplifying the system layout and reducing costs. Here two-layer (TLIRS) design is proposed consisting of cavity packed-bed storage. The first layer porous ceramic second one rocks. To enable performance optimization system, models radiation, two-phase transient heat transfer local thermal nonequilibrium were derived validated. TLIRS was assessed characterized by absorbing, charging, discharging overall efficiencies solar-to-exergy conversion ratio. results indicate that significantly enhances absorption irradiance thus improves efficiencies. For CSP applications, potentially achieves high in repetitive charging cycles.