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The photothermal energy conversion and storage mechanism was illustrated. Abstract. Phase change nanocapsules exhibit significant potential in harnessing photothermal energy to address the ever-growing energy demand; however, their application is restricted by limited solar absorption capacity and low thermal conductivity.
Direct-photothermal energy conversion and storage experiment: The 300 W Xe-lamp was used as the solar simulator in the direct-photothermal energy conversion and storage experiment with the intensity adjusted from 0.5 to 2 kW/m 2. During the experiment, the thermocouple was attached to the surface at different positions of the SA
The experimental results indicate a high energy density of 335 J/g, a long lifetime of 5 d and a heat release of up to 6.3 °C due to the coupled photochemical
To meet the requirement of multipurpose applications in infrared thermal camouflage and solar photothermal energy storage, we have developed a series of multifunctional composite films based on polyurethane (PU) as a flexible matrix and double-layered phase-change microcapsules as an additive. The double-layered microcapsules
If the dust is not cleaned up in time, the efficiency of the photothermal conversion can be seriously affected. Interestingly, the self-cleaning effect is also able to remove the dust deposited on the surface of FSPCMs by rain or manual spraying. Calculated photothermal energy storage efficiency for the FSTES coating under
High measured energy densities of up to 559 kJ kg−1 (155 Wh kg−1), long storage lifetimes up to 48.5 days, and high quantum yields of conversion of up to 94%
The obtained composite material (PEG@CQDs-5/DW) exhibited excellent heat storage performance, high stability, elevated cycle time, and extended service lifetime as well as excellent photothermal
The high-energy photons from the solar spectrum can be absorbed by the upper MOST layer, and photochemically convert norbornadiene to quadricyclane, storing solar energy in the form of chemical energy at around 103 kJ mol −1. In the meantime, the low-energy photons, accounting for ≈88% in the solar spectrum, will be absorbed by the
In this study, high energy storage polyurea (PUA) microPCMs for photothermal storage were fabricated from a Pickering emulsion consisting of bio-derived and sustainable regenerated chitin (RCh
The conversion and utilization of the solar energy mainly include photothermal conversion [5], photoelectric conversion [6] and photo-biomass energy conversion [7], among which the photothermal conversion technology utilizing photothermal conversion materials is presently an important way of solar energy
Since solar irradiation is highly variable and depends on time of day [4], it is important to use a proper energy storage system to compromise solar energy
The job provides a novel strategy to uniformly disperse PCM and photothermal conversion particles in space, ensuring the efficiently conversion and storage-release of energy. Graphical abstract The preparative composite can capture solar energy and store-release thermal energy at the same time, which recycles the solar
Low photothermal conversion efficiency and difficulty in thermal energy storage are still obstacles during the solar energy utilization and conversion [9]. In order to solve the above problems, finding a suitable thermal storage material with photothermal conversion capability for long-term solar thermal energy storage has become a research
In this work, smart thermoregulatory textiles with thermal energy storage, photothermal conversion and thermal responsiveness were woven for energy saving and personal thermal management. Sheath-core PU@OD phase change fibers were prepared by coaxial wet spinning, different extruded rate of core layer OD and sheath layer PU
With the irradiation time increasing, the temperature platform of P-SCG and P-SCGT appeared between 35 °C and 37 °C, which proved that the composite PCMs experienced phase transition and solar energy is converted into heat as latent heat. Comparison of thermal energy storage capacity and photothermal conversion
Particularly, photothermal energy storage systems that store excess solar energy generated during the day for nighttime utilization are widely adopted. Stearic acid (SA) has garnered significant attention as a recommended PCM due to its favorable properties [5], [6], such as cost-effectiveness, high thermal storage density, non-toxicity,
1 INTRODUCTION. Renewable, abundant, and clean solar energy is expected to replace fossil fuels and alleviate the energy crisis. However, intermittentness and instability are the deficiencies of solar energy due to its weather and space dependence. [] Emerging phase change material (PCM)-based photothermal
These factors hinder the continuous energy conversion of photothermal materials, necessitating collaboration with storage media. The mismatch between demands and supplies in time and space can be efficiently addressed by utilizing PCM to store solar energy after it has been captured and converted using photothermal conversion materials.
Phase change materials (PCMs) are a crucial focus of research in the field of photothermal energy storage. However, due to their inherently low photothermal conversion efficiency, traditional PCMs absorb solar energy scarcely. The photothermal conversion ability of PCMs are usually enhanced by incorporating photothermal conversion nanoparticles.
The above results indicated that the prepared PU/MCS/MA exhibits desired photothermal conversion, energy storage and heat release capacity and is an ideal material for cleaning up high-viscosity crude oil. and continue to complete the heating and adsorption of crude oil when the solar irradiation intensity decreases with
However, current researches on the photothermal effect of MoS 2 are focusing on biomedical applications, and researches on energy harvesting and storage were very limited, specifically in thermal energy conversion and storage [17]. Developing high-performance MoS 2-based photothermal PCMs for thermal storage remains a
Secondly, differences in reactor type, reaction residence time, sampling, etc., all affect the time to reach equilibrium during the experiment . Firstly, in this study, a SCWG system coupled with photothermal energy storage was established using Aspen Plus. The biomass gasification process is supplied with energy using the photothermal
c) Surface temperature of the PESC as a function of time at –10 °C after energy storage. d) Sequential images showing a 20 μL droplet evaporation on the PESC containing 60% STP at –10 °C.
1. Introduction. Thermal energy management including thermal energy collection, conversion, and storage is becoming increasingly important to effectively utilize thermal energy and thus achieve sustainable development [1].Photothermal energy conversion technology, which captures solar radiation and converts it directly into thermal
At the same time, 2-methylimidazole (1.64 g) was added to another methanol (50 mL) and stirred for 30 min to obtain the 2-methylimidazole/methanol dispersion B. Flexible textiles with polypyrrole deposited phase change microcapsules for efficient photothermal energy conversion and storage. Sol. Energy Mater. Sol. Cells, 224
Emerging phase change material (PCM)-based photothermal conversion and storage technology is an effective and promising solution due to large thermal
Fabrication and tactic of thermal energy storage wood with high photothermal conversion efficiency. a) is the biomimetic strategy of the aeolotropic and organized structure of human muscle. According to the temperature difference value between natural Balsa wood and p-thermowood-6K under the same time point (Fig. S2),
Phase change materials (PCMs) are a crucial focus of research in the field of photothermal energy storage. However, due to their inherently low photothermal conversion
Pristine organic phase change materials (PCMs) are difficult to complete photothermal conversion and storage. To upgrade their photothermal conversion and storage capacity, we developed Fe-MOF (metal-organic framework) derived Fe 3 O 4 /C-decorated graphene (GP) based composite PCMs toward solar energy harvesting.
The photothermal effect has been widely observed in various photothermal materials, such as inorganic materials (e.g., plasmonic metals and semiconductors) 20, 21 and organic materials (e.g., polymers) 22, which convert incident light into thermal energy (heat) under irradiation.A photothermal process is a direct
Phase change materials (PCMs) have garnered significant attention as a prospective solution for photothermal energy storage, attributed to their notable energy density. Nonetheless, the constrained thermal conductivity of PCMs leads to delayed heat storage from the photothermal conversion surface, causing a build-up of heat at the
In this review, we comprehensively summarized the state-of-the-art photothermal applications for solar energy conversion, including photothermal water evaporation and desalination, photothermal
1 · The combination of Organic Rankine Cycle (ORC) and Latent Heat Thermal Energy Storage (LHTES) is a novel approach for effectively utilizing solar energy. multi-tube shell TES system with a longer length and smaller diameter exhibits superior comprehensive performance in a photothermal power station with an average total efficiency of 12.45%
The thermally induced or photothermal phase change mechanism mainly involved a reversible melting and freezing process (Fig. 1 c), the crystalline PEG segments started melting above the melting temperature (T m) accompanied by the storage of thermal energy, while the amorphous PEG started crystallizing below the freezing
Abstract Multifunctional phase change materials-based thermal energy storage technology is an important way to save energy by capturing huge amounts of thermal energy during solar irradiation and releasing it when needed. Herein, superhydrophobic thermal energy storage coating is realized by spraying mesoporous
Comparatively, photothermal utilization is becoming more attractive due to its simple and straightforward principle. However, harnessing solar energy is not only limited by time and space but also by its discontinuity and instability. The emerging integrated technology of photothermal conversion and thermal energy storage is a viable solution.
Therefore, it is of great significance to develop a photothermal conversion energy storage material with low cost and high energy conversion efficiency to reduce fossil energy consumption and meet the sustainable utilization of energy. The tested samples were placed in the light box at the same time to ensure the same test
The energy decreases of PAzo were also explored in the dark to obtain the best storage time for solid photothermal fuel device. As shown in Fig. 4 d, the residual ΔH isom of Azo decreases from 112 J/g to 54.3 J/g in 48 h, consistent with Fig. 3 b.
1. Introduction. With the depletion of fossil energy and the increasingly serious environmental pollution [1], the need to develop renewable energy is becoming increasingly urgent [2].As a kind of clean energy, solar energy is mainly applied in photoelectric and photothermal forms [3].Among them, light and heat have the
5 · Compared with SAT, photothermal conversion of HPC is prolonged and as well as the thermal energy storage time, which is mainly due to the thermal energy storage
Introduction. Recent years, the exploration and harnessing of solar energy have garnered significant attention. Among the wide array of solar-energy utilization methods (including photovoltaic, photochemical, and photothermal approaches), solar-thermal conversion is particularly promising as it involves a direct conversion process
Photothermal energy conversion and storage. Photothermal conversion is a direct, green and sustainable way of harnessing solar energy by using photothermal conversion materials as a medium to convert solar energy without the need for additional energy. Real-time and photothermal images of Cu 7 S 4 /(PNIPAM) composite
The photothermal properties and energy storage of microcapsules and coated fabrics were studied by an infrared thermal imager (FOTRIC 220S). The outdoor photothermal properties and energy storage of the coated fabric were studied by the FLIR E8 thermal camera and Xiaomi 13 mobile phone shooting. 3. Results and discussion3.1.
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