Kewei Wang College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 201306 China Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai, 200240 China Search for …
The CCNT layer provided excellent photothermal conversion and self-cleaning properties. The experimental results show that the latent heat of the PCM can reach 124.2 J/g, the water contact angle is …
A novel thermal energy storage (TES) composites system consisting of the microPCMs based on n-octadecane nucleus and SiO 2 /honeycomb-structure BN layer-by-layer shell as energy storage materials, and wood powder/Poly (butyleneadipate-co-terephthalate) (PBAT) as the matrix, was created with the goal of improving the heat …
The photothermal conversion and storage energy efficiency (η) of Cu 2 O/PMMA-NanoPCMs can be calculated by Eq. (2) [ 14, 15, 48, 49 ]: (2) η = mΔH IS T t − T 0 × 100 % where m and ΔH represent the mass and melting enthalpy of nanoPCMs, respectively; I and S represent the light irradiation intensity and the illumination area of …
In response to the issues of environment, climate, and human health coupled with the growing demand for energy due to increasing population and technological advancement, the concept of sustainable and renewable energy is presently receiving unprecedented attention. To achieve these feats, energy savings and efficiency are …
All forms of energy follow the law of conservation of energy, by which they can be neither created nor destroyed. Light-to-heat conversion as a traditional yet constantly evolving means of converting light into thermal energy has been of enduring appeal to researchers and the public. With the continuous development of advanced …
From RCh stabilized Pickering emulsions, a high energy storage GO-modified microPCM with photothermal conversion capacity was obtained. The microPCM exhibited a high encapsulation ratio of 92.3%, high enthalpy heat energy storage of 234.7 J/g, no leakage, high thermal reliability, and stability at a 9:1 core/shell ratio.
The photothermal energy conversion and storage capacity was tested under simulated solar (CEAULIGHT, CEL-S500), and the temperature-time curves were measured by a digital data collector (R2100). An alternating current generator was used to provide an alternating magnetic field for magnetic-thermal conversion and storage, and …
The development of microencapsulated phase change materials with excellent photothermal conversion and storage performances is significant for solar energy utilization. Herein, a kind of the novel n-octadecane microcapsules with calcium carbonate-polydopamine (CaCO 3 -PDA) hierarchical shell was fabricated through a …
To evaluate the photothermal energy-storage performance of the PU/MePCM composite films, an experimental setup was designed as shown in Fig. S6. A Xenon arc lamp with an irradiation intensity of 1000 mW·cm −2 was used as a …
Molten salts play a key role in the heat transfer and thermal energy storage processes of concentrated solar power plants. A novel composite material was prepared in this work by adding micron-sized magnesium particles into Li 2 CO 3-Na 2 CO 3-K 2 CO 3 molten salt, the heat transfer and thermal energy storage properties of the composites …
Efficient recovery of crude oil spills is still a great challenge for worldwide due to its high-viscosity and low-fluidity. Although the application of solar-heated absorbents in accelerating crude oil recovery has achieved significant progress, solar irradiation intensity is greatly dependent on time, location and weather conditions, which greatly restrict their practical …
to characterize the photothermal conversion and energy storage performance of MPN@PA. (1) ... This is due to the self-assembly of the polyphenol monomer and Fe 3+ at the oil-water interface of emulsion micellar under alkaline conditions to …
The key technologies of heavy oil thermal recovery via tower solar photothermal conversion are systematically studied. This work demonstrates the feasibility of applying solar …
Solar energy, as a type of abundant, clean, and renewable energy, has been widely used in various fields in the past decades, including desalination, 8 solar evaporation, 9 and photoelectric processes. 10 In 1972, a pioneering work was reported by Fujishima and Honda on a photoelectrochemical system composed of a TiO 2 …
The investigation of photothermal materials with broadband absorption is beneficial for the utilization of renewable solar energy, while the engineering of materials …
2 Basic Mechanisms of Solar-Driven Photothermal Conversions Conversion of solar energy into other forms of energy is urgently needed to address the global energy issues. [63, 64] It can be realized by different conversion processes, such as PV effect, [4, 65-67] photochemical transformation, [68-70] photoelectrochemical process, …
Herein, a photothermal energy-storage capsule (PESC) by leveraging both the solar-to-thermal conversion and energy-storage capability is proposed for efficient anti-/deicing. Under illumination, the surface temperature can rise to 55 °C, which endows fast droplet evaporation to prevent the subsequent bulk freezing, and the accumulated ice and frost in …
While flexible supercapacitors with high capacitance and energy density is highly desired for outdoor wearable electronics, their application under low-temperature environments, like other energy storage devices, remains an urgent challenge. Solar thermal energy converts solar light into heat and has been extensively applied for solar …
All-weather, high-efficiency solar photothermal anti-icing/deicing systems are of great importance for solving the problem of ice accumulation on outdoor equipment surfaces. In this study, a photothermal phase change material with a micro-porous structure (MP@PPCM) is prepared via salt-template and melt-blending methods.
Emerging phase change material (PCM)-based photothermal conversion and storage technology is an effective and promising solution due to large thermal …
Besides the hydrophobic SNMs, many kinds of hydrophilic SNMs also displayed excellent photothermal performance under laser irradiation. In the case of the MoO 3-x SNW, [] the absorption spectra …
film with visible light trapping ability, photothermal conversion and energy storage performance by covalently bonded a visible light absorbing dye into the polymer through copolymerization.,For this target solution copolymerization of …
Herein, we develop a novel approach to prepare flexible superhydrophobic thermal energy storage (FSTES) coating for photothermal conversion by spraying …
Photothermal materials can effectively absorb solar energy and convert it into heat energy [8], which has become a research hotspot. Phase change materials (PCM) with high energy density and heat absorption and release efficiency [ 9 ], have been widely used in many fields as improving building heat storage capacity [ 10 ], reducing building …
Flexible transparent heaters based on photothermal energy conversion are highly desired for next-generation electronic devices. However, how to balance the photothermal conversion efficiency and transparency is still a huge challenge. In this work, we demonstrate a flexible polycarbonate (PC) film with balanced photothermal energy …