Thermal energy storage systems for concentrating solar power plants

Steinmann, Wolf-Dieter

doi:10.1016/b978-0-12-819970-1.00008-6

Cited by 12 publications

(14 citation statements)

References 27 publications

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“…Thermal fluids play a dominant role in all these energy technologies. Thermal fluids are used both as heat transfer fluid (HTF) and as thermal energy storage (TES) for different temperature ranges in solar thermal (Steinmann, 2020) and building applications. A good thermal fluid should possess (1) high specific heat (C p ), (2) low freezing temperature, (3) higher boiling point (depending on the application), (4) higher thermal conductivity (k), and (5) low viscosity.…”

Section: Introductionmentioning

confidence: 99%

Thermal fluids with high specific heat capacity through reversible Diels-Alder reactions

Lilley

et al. 2022

iScience

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Thermal fluids are used as heat transfer fluids and thermal energy storage media in many energy technologies ranging from solar thermal heating to battery thermal management. The heat capacity of state-of-the-art thermal fluids remains $50% of that of water (which suffers from a limited operation range between 0 C and 100 C), and their viscosities are typically more than one order of magnitude higher than that of water. Our results demonstrate that the heat capacity of the proposed thermochemical fluid is significantly higher than that of state-ofthe-art thermal fluids over a broad temperature range and is also higher than that of water between 60 C and 90 C. The viscosity of our liquid is only 3 times higher than that of water, and the operating temperature range is between À90 C and 135 C. Furthermore, a model was developed allowing for novel design of thermochemical thermal fluids in the future with even higher heat capacity.

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Section: Introductionmentioning

confidence: 99%

Thermal fluids with high specific heat capacity through reversible Diels-Alder reactions

Lilley

et al. 2022

iScience

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“…Figure 8 illustrates the change that experiments sodium nitrate after one year of exposure at room temperature when it is pure (a) and in the presence of SiO 2 (b) and Al 2 O 3 (c) NPs. Pure NaNO 3 showed more aggregates than sodium nitrate with the presence of NPs due to moisture absorption; this behaviour is a relevant finding on the point of view of molten salts application because their high hygroscopicity in contact with environment increases the damage of metal compounds present in the plant [ 52 , 53 ]; thus, this effect is reduced considerably with the presence of NPs.…”

Section: Resultsmentioning

confidence: 99%

Effect of Nanoparticles on the Thermal Stability and Reaction Kinetics in Ionic Nanofluids

et al. 2022

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Nowadays, the incorporation of nanoparticles into thermal fluids has become one of the most suitable strategies for developing high-performance fluids. An unconventional improvement of thermo–physical properties was observed with the addition of 1% wt. of nanoparticles in different types of fluids, such as molten salts, allowing for the design of more thermally efficient systems using nanofluids. Despite this, there is a lack of knowledge about the effect that nanoparticles produce on the thermal stability and the decomposition kinetics of the base fluid. The present study performs IR- and UV-vis spectroscopy along with thermogravimetric analysis (TGA) of pure nitrate and nitrate based nanofluids with the presence of SiO2 and Al2O3 nanoparticles (1% wt.). The results obtained support that nanoparticles accelerate the nitrate to nitrite decomposition at temperatures below 500 °C (up to 4%), thus confirming the catalytic role of nanoparticles in nanofluids.

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“…Within the operating temperature range, the quantity of stored energy is proportional to the temperature change (increase or decrease) on charging, as well as the thermal capacity of the material. 83,84 It is noted that sensible heat storage systems provide storage capacities of 10 to 50 kWh/tone and energy…”

Section: Thermal Energy Storagementioning

confidence: 99%

Recent advances of energy storage technologies for grid: A comprehensive review

Rahman

Kim

Hossain³

2022

Energy Storage

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Energy storage is an idea that dates back over two thousand years. Engineers, investors, and politicians are increasingly researching energy storage solutions in response to growing concerns about fossil fuels' environmental effects as well as the capacity and reliability of global power systems. Various energy storage technologies are explored in depth in this study, with a focus on their application to the energy storage of electric grids. Specific consideration is paid to a few chosen technologies including flywheel energy storage, pumped hydro energy storage, compressed air energy storage, thermal energy storage in molten salt, hydrogen energy storage, battery energy storages, and capacitor and supercapacitor energy storage. Furthermore, this article delves into the concept of energy storage, focusing on a comprehensive examination of various deployments of these technologies around the world. Some of the barriers to commercial adoption of energy storage technologies, as well as the future, are covered in the article’s conclusion.

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Thermal energy storage systems for concentrating solar power plants

Cited by 12 publications

References 27 publications

Thermal fluids with high specific heat capacity through reversible Diels-Alder reactions

Thermal fluids with high specific heat capacity through reversible Diels-Alder reactions

Effect of Nanoparticles on the Thermal Stability and Reaction Kinetics in Ionic Nanofluids

Recent advances of energy storage technologies for grid: A comprehensive review

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