Filtern
Erscheinungsjahr
Institut
- Solar-Institut Jülich (37) (entfernen)
Volltext vorhanden
- nein (37)
Dokumenttyp
Schlagworte
- Energy storage (4)
- Power plants (4)
- Associated liquids (3)
- Concentrated solar power (3)
- Hybrid energy system (3)
- Central receiver power plant (2)
- Concentrated systems (2)
- Electricity generation (2)
- Gas turbine (2)
- Solar thermal technologies (2)
- Camera system (1)
- Ceramics (1)
- Cloud passages (1)
- Concentrating solar power (1)
- Control optimization (1)
- DNI forecast (1)
- DNI forecasting (1)
- Decision theory (1)
- Direct normal irradiance forecast (1)
- Dynamic simulation (1)
- Electrochemistry (1)
- Fresnel power plant (1)
- Global change (1)
- Heliostat Field Calibration (1)
- Heliostats (1)
- Hybridization (1)
- Measuring instruments (1)
- Molten salt receiver (1)
- Molten salt receiver system (1)
- Molten salt receiver system, (1)
- Molten salt solar tower (1)
- Nowcasting (1)
- PTC (1)
- Parabolic trough collector (1)
- Photovoltaics (1)
- Power conversion systems (1)
- Process prediction (1)
- Quadrocopter (1)
- Solar irradiance (1)
- Star design (1)
- Thermal Energy Storage (1)
- Transient flux distribution (1)
- Two-phase modelling (1)
- UAV (1)
- Uncertainty analysis (1)
- Unmanned aerial vehicle (1)
Gehört zur Bibliographie
- nein (37)
Air-sand heat exchanger
(2011)
Concentrating solar power
(2012)
In this paper the results of a techno-economic analysis of improved and optimized molten salt solar tower plants (MSSTP plants) are presented. The potential improvements that were analyzed include different receiver designs, different designs of the HTF-system and plant control, increased molten salt temperatures (up to 640°C) and multi-tower systems. Detailed technological and economic models of the solar field, solar receiver and high temperature fluid system (HTF-system) were developed and used to find potential improvements compared to a reference plant based on Solar Two technology and up-to-date cost estimations. The annual yield model calculates the annual outputs and the LCOE of all variants. An improved external tubular receiver and improved HTF-system achieves a significant decrease of LCOE compared to the reference. This is caused by lower receiver cost as well as improvements of the HTF-system and plant operation strategy, significantly reducing the plant own consumption. A novel star receiver shows potential for further cost decrease. The cavity receiver concepts result in higher LCOE due to their high investment cost, despite achieving higher efficiencies. Increased molten salt temperatures seem possible with an adapted, closed loop HTF-system and achieve comparable results to the original improved system (with 565°C) under the given boundary conditions. In this analysis all multi tower systems show lower economic viability compared to single tower systems, caused by high additional cost for piping connections and higher cost of the receivers.
REFERENCES
Retrofitting of existing parabolic trough collector power plants with molten salt tower systems
(2018)
Improved efficiency prediction of a molten salt receiver based on dynamic cloud passage simulation
(2019)
The production of dispatchable renewable energy will be one of the most important key factors of the future energy supply. Concentrated solar power (CSP) plants operated with molten salt as heat transfer and storage media are one opportunity to meet this challenge. Due to the high concentration factor of the solar tower technology the maximum process temperature can be further increased which ultimately decreases the levelized costs of electricity of the technology (LCOE). The development of an improved tubular molten salt receiver for the next generation of molten salt solar tower plants is the aim of this work. The receiver is designed for a receiver outlet temperature up to 600 °C. Together with a complete molten salt system, the receiver will be integrated into the Multi-Focus-Tower (MFT) in Jülich (Germany). The paper describes the basic engineering of the receiver, the molten salt tower system and a laboratory corrosion setup.