Heat storage and release characteristics of a prototype CaCO3/CaO thermochemical energy storage system based on a novel fluidized bed solar reactor

Journal of Cleaner Production, Год журнала: 2024, Номер 450, С. 142003 - 142003

Опубликована: Март 31, 2024

Язык: Английский

---

Numerical investigation of transient flow characteristics and heat transfer in a fluidized bed particle solar receiver

International Journal of Thermal Sciences, Год журнала: 2025, Номер 214, С. 109859 - 109859

Опубликована: Март 12, 2025

Язык: Английский

---

Experimental investigation of directly irradiated conical spouted bed thermal receivers

Particuology, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

---

Renewable Energy Curtailment Storage in Molten Salt and Solid Particle Solar Thermal Power Plants: A Comparative Analysis in Spain

Applied Sciences, Год журнала: 2025, Номер 15(11), С. 6162 - 6162

Опубликована: Май 30, 2025

Spain’s energy transition poses the dual challenge of managing renewable curtailment and enhancing competitiveness concentrated solar power (CSP) technologies. This study evaluates suitability replacing molten salts with solid particles for storage and, additionally, explores surplus electricity from grid in Carnot batteries. Four scenarios were analyzed using a Gemasolar-type plant model: each medium was studied without integration curtailed electricity. The field modeled SAM (System Advisor Model), while data Red Eléctrica de España (2016–2021) quantified available surplus. Results show that lead to 7.4% higher annual production compared salts, mainly due improved cycle efficiency. increased output further, particle battery scenario achieving highest performance (up 19.0% sun-to-electricity efficiency 69.7% capacity factor). However, round-trip limited (~25–27%), although showed lower LCOE (levelized cost energy) than (192 vs. 211 USD/MWh), costs. These findings suggest offer clear advantages, economic viability batteries remains constrained by current operational limitations.

Язык: Английский

---

Medium- and High-Entropy Rare Earth Hexaborides with Enhanced Solar Energy Absorption and Infrared Emissivity

Materials, Год журнала: 2024, Номер 17(8), С. 1789 - 1789

Опубликована: Апрель 12, 2024

The development of a new generation solid particle solar receivers (SPSRs) with high absorptivity (0.28-2.5 μm) and infrared emissivity (1-22 is crucial has attracted much attention for the attainment goals "peak carbon" "carbon neutrality". To achieve modulation emission absorptivity, two types medium- high-entropy rare-earth hexaboride (ME/HEREB6) ceramics, (La0.25Sm0.25Ce0.25Eu0.25)B6 (MEREB6) (La0.2Sm0.2Ce0.2Eu0.2Ba0.2)B6 (HEREB6), severe lattice distortions were synthesized using high-temperature solid-phase method. Compared to single-phase lanthanum (LaB6), HEREB6 ceramics show an increase in from 54.06% 87.75% range 0.28-2.5 μm 76.19% 89.96% 1-22 wavelength range. On one hand, decreasing free electron concentration plasma frequency reduces reflection ultimately increases absorptivity. other distortion induces changes B-B bond length, leading significant Raman scattering spectrum, which affects damping constant emissivity. In conclusion, multicomponent design can effectively improve energy absorption heat transfer capacity ME/HEREB6, thus providing avenue particles.

Язык: Английский

---

Effect of temperature on the hydrodynamics of a fluidized bed circulating in a long tube for a solar energy harvesting application

Chemical Engineering Science, Год журнала: 2023, Номер 281, С. 119218 - 119218

Опубликована: Авг. 26, 2023

Язык: Английский

---

Real-time and annual performance evaluation of an ultra-high-temperature concentrating solar collector by developing an MCRT-CFD-ANN coupled model

Energy, Год журнала: 2024, Номер 307, С. 132668 - 132668

Опубликована: Июль 30, 2024

Язык: Английский

---

Design, simulation and on-sun experiments of a modified sliding-bed particle solar receiver for coupling with tower concentrating system

Renewable Energy, Год журнала: 2024, Номер 235, С. 121275 - 121275

Опубликована: Авг. 31, 2024

Язык: Английский

---

Thermal stress in externally irradiated tubes of solar central receivers with a gas-particle fluidized dense suspension

Applied Thermal Engineering, Год журнала: 2024, Номер 258, С. 124751 - 124751

Опубликована: Ноя. 5, 2024

Язык: Английский

---

Solar Field and Receiver Model Validation of the Next-CSP MW-Scale Prototype

SolarPACES Conference Proceedings, Год журнала: 2024, Номер 2

Опубликована: Окт. 15, 2024

This study presents a comparison of both modelling and experimental results obtained on the solar field receiver MW-scale particle driven CSP unit implemented at Themis tower (France) in framework Next-CSP H2020 European project. At partial load, ~900 kW, simulated data concerning incident power aperture are consistent with measured values less than 5% difference from results. The is higher for temperature thermal efficiency as function mass flow rate. It ranges between 12 98°C 430 300°C respectively. For efficiency, varies strongly experiments approximately 12% to 50% (relative). main cause discrepancy calculated attributed heterogeneity flux distribution tubes.

Язык: Английский

---