Thermal management in energy-efficient solar thermal energy conversion and transparent windows requires advanced materials with low thermal conductivity and high transparency, such as transparent silica aerogel …
Four coatings, namely, black Cr, Ag film, and ideal coatings with cutoff wavelengths of 2.5 and 1.5 μm, are investigated to evaluate the compatibility and effectiveness of coatings with diverse spectral selectivities …
Inspired by stony-coral morphology, we developed a hierarchical coating with three tuneable length-scale morphologies: nano- (∼120 nm), micro- (∼3 μm) and macro-scales (>50 μm). Our coating …
To achieve high photo-thermal conversion efficiency in the solar thermal conversion system, a novel spinel structured cobalt-rich transition metal oxide-based …
Controlling light absorption and emission by optical nanostructures is significant for a typical solar and thermal energy conversion systems such as solar thermal (ST), photovoltaic (PV) [24], and solar thermophotovoltaic (STPV) …
Biomimetic Multifunctional Graphene-Based Coating for Thermal Management, Solar De-Icing, and Fire Safety: Inspired from the Antireflection Nanostructure of Compound Eyes Small . 2024 Apr 22:e2312083. doi: 10.1002/smll.202312083.
As described above, the Cr/AlCrN/AlCrON/AlCrO multilayer coating prepared by cathodic arc ion plating exhibits a high solar selectivity and outstanding thermal stability at 500 C in ambient air, and it can be considered as a good candidate for high-temperature
2.3. Optical Properties Tests The reflectanceI) solar spectrum range (0.3–2.5 μm) of the coating was obtained by a Shimadzu UV3600 UV/VIS/NIR spectrophotometer with an integration sphere (module 150 mm), while the reflectance spectra in the range of 2.5–25 ...
We experimentally demonstrated enhanced solar-thermal energy conversion with Si-cored WNW selective metamaterial absorber, which was simply fabricated by conformally coating about 40-nm-thick …
In solar thermal power plants, solar radiation is concentrated at one point to produce steam. The steam drives a steam turbine that converts the energy to mechanical energy to drive an electric generator. The thermodynamic performance is …
To achieve an electricity grid based on renewable generation, intermittent sources including solar energy must be paired with storage. Thermal energy storage is a very attractive solution due to its simplicity, scalability, …
Solar thermophotovoltaic devices have the potential to enhance the performance of solar energy harvesting by converting broadband sunlight to narrow-band thermal radiation tuned for a...
Solar thermal collector
Semantic Scholar extracted view of "Cobalt-rich spinel oxide-based wide angular spectral selective absorber coatings for solar thermal conversion applications" by K. Kumar et al. DOI: 10.1016/j.renene.2022.12.072 Corpus ID: …
The review explores recent advancements in spinel structure-based materials, renowned for their spectral selectivity, high solar absorptance, low thermal emittance, and stability at …
Here, a cost-effective photothermal superhydrophobic coating was designed by modulating the microstructure of a highly solar-absorbing material (MCN), followed by a simple …
Cermet materials as solar absorbers have attracted interest since the 1950s, when Tobar [], Gier and Dunkle [] have studied practically useful cermet films for solar selective absorption.Several cermet selective absorbers have been commercialized. Zhang et al. [] designed a numerical model and experimentally deposited high-efficient Mo–Al 2 …
Semantic Scholar extracted view of "Spinel-type solar-thermal conversion coatings on supercapacitors: An effective strategy for capacitance recovery at low temperatures" by P. Ma et al. DOI: 10.1016/J.ENSM.2019.05.016 Corpus ID: 182214907 Spinel-type solar ...
In order to make full use of solar energy and solve the problem of functional incompatibility between solar and infrared spectra, the present work has cleverly aimed at the problem by designing Mn 0.6 Ni 1.4 Co 2 O y multi-functional interface. The Mn 0.6 Ni 1.4 Co 2 O y coating was obtained by a simple vacuum spraying method. ...
Solar-thermal energy storage using latent heat of phase change materials (PCMs) offers renewable penetration in wide range of smart applications. The limiting solar energy harvesting efficiency of existing photo-thermal …
A key barrier to the wide adoption of CST, contributing to both increasing cost and reducing performance, is the poor durability of its light-absorbing coatings. 12 These coatings need to withstand high temperatures (>600 C) and thousands of thermal cycles over many years of operation. 13 The most widely used CST coatings are spinel-based coatings (Note 1, …
Phase change materials (PCMs) offer a promising solution to address the challenges posed by intermittency and fluctuations in solar thermal utilization. However, for organic solid–liquid PCMs, issues such as leakage, low thermal conductivity, lack of efficient solar-thermal media, and flammability have constrained their broad applications. Herein, …
Spectrally selective coatings on NTRs are proposed in this study to reduce the radiation heat loss and thus improve the solar-thermal conversion efficiency of …
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