Akademik Veri Yönetim Sistemi
Particuology, cilt.103, ss.18-28, 2025 (SCI-Expanded, Scopus)
One of the emerging applications of spouted beds is their use as thermal receivers in CSP systems, offering significant advantages such as high heat transfer rates and uniform temperature distribution. However, experimental studies on directly irradiated spouted beds remain limited in the literature. The aim of this study was to investigate the thermal performance of a directly irradiated spouted bed receiver using CarboHSP and olivine particles. Experiments were conducted in a 0.15 m ID spouted bed with a 60° conical angle. Hydrodynamic experiments were first performed to understand the gas-solid dynamics and establish a foundation for subsequent thermal studies. The solar radiation was simulated by a 2 kWe metal halide lamp. Temperature profiles influenced by particle size, spouting velocity, and particle type were analyzed, and charge and discharge efficiencies were determined. Higher temperatures are obtained as the particle size and spouting gas velocity are reduced. The results also show that olivine particles are a cost-effective alternative for spouted bed thermal receivers, offering thermal performance comparable to CarboHSP particles.