Analysis and Optimization of SM and TES Hours of Central Receiver Concentrated Solar Thermal with Two-Tank Molten Salt Thermal Storage

2020 ◽  
pp. 666-673
Author(s):  
Hanane Ait Lahoussine Ouali ◽  
Benyounes Raillani ◽  
Samir Amraqui ◽  
Mohammed Amine Moussaoui ◽  
Abdelhamid Mezrhab ◽  
...  
Keyword(s):  
Molten Salt ◽  
Thermal Storage ◽  
Solar Thermal ◽  
Central Receiver

Central Receiver System Solar Power Plant Using Molten Salt as Heat Transfer Fluid

2008 ◽  
Vol 130 (2) ◽  
Author(s):  
J. Ignacio Ortega ◽  
J. Ignacio Burgaleta ◽  
Félix M. Téllez
Keyword(s):  
Heat Transfer ◽  
Power Generation ◽  
Molten Salt ◽  
Thermal Power ◽  
Solar Thermal ◽  
Heat Transfer Fluid ◽  
Solar Thermal Power ◽  
Central Receiver ◽  
Spanish Legislation ◽  
Solar Thermal Power Generation

Of all the technologies being developed for solar thermal power generation, central receiver systems (CRSs) are able to work at the highest temperatures and to achieve higher efficiencies in electricity production. The combination of this concept and the choice of molten salts as the heat transfer fluid, in both the receiver and heat storage, enables solar collection to be decoupled from electricity generation better than water∕steam systems, yielding high capacity factors with solar-only or low hybridization ratios. These advantages, along with the benefits of Spanish legislation on solar energy, moved SENER to promote the 17MWe Solar TRES plant. It will be the first commercial CRS plant with molten-salt storage and will help consolidate this technology for future higher-capacity plants. This paper describes the basic concept developed in this demonstration project, reviewing the experience accumulated in the previous Solar TWO project, and present design innovations, as a consequence of the development work performed by SENER and CIEMAT and of the technical conditions imposed by Spanish legislation on solar thermal power generation.

Thermal storage in a MW scale. Molten salt solar thermal pilot facility: Plant description and commissioning experiences

2016 ◽  
Vol 99 ◽  
pp. 852-866 ◽  
Author(s):  
Cristina Prieto ◽  
Rafael Osuna ◽  
A. Inés Fernández ◽  
Luisa F. Cabeza
Keyword(s):  
Molten Salt ◽  
Thermal Storage ◽  
Solar Thermal

scholarly journals Stabilization of molten salt materials using metal chlorides for solar thermal storage

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
T. O. Dunlop ◽  
D. J. Jarvis ◽  
W. E. Voice ◽  
J. H. Sullivan
Keyword(s):  
Molten Salt ◽  
Thermal Storage ◽  
Solar Thermal ◽  
Metal Chlorides

scholarly journals Molten salt composition and composites for improved latent heat thermal energy storage

2017 ◽  
Vol 4 ◽  
pp. 46-58
Author(s):  
Jonathan Kotyla
Keyword(s):  
Thermal Conductivity ◽  
Renewable Energy ◽  
Molten Salt ◽  
Energy Demand ◽  
Molten Salts ◽  
Renewable Energy Sources ◽  
Expanded Graphite ◽  
Thermal Storage ◽  
High Heat ◽  
Solar Thermal

The growing concern over nonrenewable fuel sources, coupled with the continued increase of global energy demand has incentivised research into numerous new and pre-existing renewable energy sources. Concentrated solar thermal (CST) takes advantage of the high heat capacity of molten salts to provide an alternative solar solution to photovoltaic cells that allows reduced downtime through heat storage for use during suboptimal conditions. This meta-study examines the effectiveness of various eutectic Molten Salt compositions and materials as thermo-physical augmenters, with a focus on improved thermal conductivity when composited with molten salts as a method of enhancing the efficiency of concentrated solar thermal storage technology. The study is based on literature retrieved from scientific databases to investigate information available about enhancing LHTES technology. Research into carbon composites such as Expanded Graphite (EG) exhibits promising results revealing thermal conductivity increases as high as 40% in eutectic salt materials, however inconsistencies in measurements and materials used reveal a need for a greater analysis. Although molten salt thermal storage systems are not optimal in their current state, indication was found that composite storage mediums could potentially solidify their spot as a viable renewable energy source.

Effects of Multi-Walled Carbon Nanotubes on Enhancing the Thermodynamics Characteristic of Alkali Nitrate and Chlorate Salt for Concentration Solar Plants

2013 ◽  
Vol 805-806 ◽  
pp. 63-69 ◽  
Author(s):  
Di Wu ◽  
Shi Liu
Keyword(s):  
Heat Transfer ◽  
Carbon Nanotubes ◽  
Molten Salt ◽  
Fossil Fuels ◽  
Thermal Power ◽  
Thermal Storage ◽  
Solar Thermal ◽  
Heat Transfer Fluid ◽  
Solar Thermal Power ◽  
The Future

Solar thermal power generation technology is the most feasible technology to compete with fossil fuels in the economy, and is considered to be one of the most promising candidates for providing a major share of the clean and renewable energy needed in the future. The appropriate heat transfer fluid and storage medium is a key technological issue for the future success of solar thermal technologies. Molten salt is one of the best heat transfer and thermal storage fluid for both parabolic trough and tower solar thermal power system. It is very important that molten salt heat transfer mechanisms are understood and can be predicted with accuracy. But studies on molten salts heat transfer are rare. This study will lay a foundation for the application of carbon nanotubes in molten salt which can remarkably improve the stability and capacity of thermal storage. Thermal analysis methods and scanning electron microscope (SEM) are utilized to provide a review of thermophysical properties and thermochemical characteristics of the MWCNTs-salt composite materials.

Enhancement of Thermodynamics Property of Gold-Nanofluids Synthesized in Thermal Storage Alkali Chlorate Salt for Concentration Solar Plants

2013 ◽  
Vol 827 ◽  
pp. 176-180 ◽  
Author(s):  
Di Wu ◽  
Shi Liu
Keyword(s):  
Molten Salt ◽  
Large Scale ◽  
Thermal Power ◽  
Thermal Storage ◽  
Solar Thermal ◽  
Heat Transfer Fluid ◽  
Storage Medium ◽  
Future Success ◽  
Technological Issue ◽  
Energy Production System

Concentrated solar thermal power generation is becoming a very attractive renewable energy production system among all the different renewable options, as it has have a better potential for dispatchability. Thus, of all components, thermal storage is a key one. However, it is also one of the less developed. The appropriate heat transfer fluid and storage medium is a key technological issue for the future success of solar thermal technologies. Molten salt as the most promising thermal energy storage medium in large-scale industrial application, the method which can improve the thermal storage ability should be proposed. But studies on this area are rare.This study will lay a foundation for the application of gold nanoparticles in molten salt which can remarkably improve the thermodynamic property. Thermal analysis methods and scanning electron microscope (SEM) are utilized to provide a review of the gold-salt composite materials microstructure.

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