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Polyethylene glycol (PEG)/silicon dioxide grafted aminopropyl …
The obtained PEG/SAM maintained excellent light-to-heat conversion and storage efficiency (η) and good chemical stability and thermal durability after a series of melting and cooling cycles and light-induced phase transition cycling, indicating the PEG/SAM has good potential for light-to-heat conversion and energy storage …
Superhydrophobic multi-shell hollow microsphere confined phase …
Developing SPCSC with a simple process, low cost and high photothermal conversion efficiency, high energy storage density, good thermal conductivity, and cycling stability is a crucial development direction to be tackled. ... Carbonized clay pectin-based aerogel for light-to-heat conversion and energy storage. Appl Clay Sci, 224 …
Thermal and photo/electro-thermal conversion characteristics of …
The efficient and reasonable conversion of electric energy and solar energy into heat energy can solve the above problems. The storage and utilization of …
Rapid Charging of Thermal Energy Storage Materials through Plasmonic Heating …
This work reports a facile approach for rapid and efficient charging of thermal energy storage ... we further demonstrated that the light-to-heat conversion and thermal storage properties of the ...
Journal of Energy Storage
Owing to its excellent heat conductivity and light absorption ability, MXene is able to boost the heat conductivity of CPCM and at the same time give CPCM excellent light-to-heat conversion ability, effectively converting light power into heat power and storing it with very high light-to-heat conversion efficiency [37, 38].
Intelligent adjustment of light-to-thermal energy conversion …
During the process of light-to-thermal conversion, RT-MPCMs is easier to convert light energy into its own heat energy, and accompanied with outward radiating …
High efficiency electro
They exhibit high latent heat (158.3 J/g), low heat loss (0.75%) and excellent photo-thermal conversion (energy storage efficiency 85.6%), electro-thermal conversion (energy storage efficiency 92.3%) properties. Due to their excellent performances, CNF/CNT
Thermophotovoltaic efficiency of 40% | Nature
Thermophotovoltaics (TPVs) convert predominantly infrared wavelength light to electricity via the photovoltaic effect, and can enable approaches to energy …
Light to heat conversion efficiency of single-walled carbon …
Semiconducting single-walled carbon nanotubes (s-SWCNTs) have the potential as light to heat efficiency, recently known as photothermal conversion …
Delignified wood for thermal energy storage with high efficient photo-thermal conversion efficiency …
In this study, a phase change energy storage wood (PCES-Wood) with efficient photo-heat conversion efficiency was obtained by impregnating polyethylene glycol based composite material and graphene quantum dot …
MXene-based phase change materials for multi-source driven energy storage, conversion …
Efficient storage, conversion, and application of renewable energy have become increasingly essential. Phase change materials (PCMs) ... Schematic diagram of light-to-heat energy conversion and storage mechanism of the PEG/Ti 3 C 2 T x composites [146 ...
High efficiency electro
They exhibit high latent heat (158.3 J/g), low heat loss (0.75%) and excellent photo-thermal conversion (energy storage efficiency 85.6%), electro-thermal conversion (energy storage efficiency 92.3%) properties. Due to their excellent performances, CNF/CNT/PEG composites have great potential to be used as thermal …
Preparation of phase change Heat storage wood with in-situ generation of thermal conductive particles to improve photothermal conversion efficiency
The FTIR spectra of Balsa, Fe@Balsa and Fe-PCES@Balsa are shown in Fig. 1 a.According to the figure, the vibration peak of Fe–O appears near 543 cm −1 in Fe-PCES@Balsa, suggesting that Fe 3 O 4 may be generated. In Fe-PCES@Balsa, 2870 cm −1 is the methyl and methylene groups'' stretching vibration peak in PCHS monomer. 1100 …
Enhancing the heat transfer and photothermal conversion of salt hydrate phase change material for efficient solar energy …
Photothermal materials and SiC foam were synergistically adopted to augment the photothermal conversion efficiency and thermal transfer efficiency of the SAT to improve the solar energy storage efficiency, as shown in Fig. 1 (b).
In situ preparation of light-driven cellulose-Mxene aerogels based composite phase change materials with simultaneously enhanced light-to-heat ...
The latent heats of form-stable composite phase change materials (fs-CPCMs) were usually reduced while synergistically improving their heat transfer and light-to-heat conversion properties. In this work, the polyethylene glycol/MXene-cellulose aerogels (PMC) fs-CPCMs with simultaneously enhanced light-to-heat conversion, heat …
Photothermal catalytic hydrogen production coupled with thermoelectric waste heat utilization and thermal energy storage …
Efficient heat transfer was calculated to evaluate the energy conversion efficiency of TEGs in STHET (Supplemental Information Note 5.4 & Fig. S20). The photothermal conversion efficiency ( η )can attain 73.2% benefited from recycling scattered light by integrating TEGs in STHET.
Ultrafast and efficient photothermal conversion for sunlight-driven …
Therefore, constructing a highly efficient sunlight-driven STEG system remains a great challenge. Phase change material (PCM) is a kind of energy storage material, which has advantages of high heat storage and strong temperature control capacity [34], [35],, .
Synthesis of hybrid dual-MOF encapsulated phase-changing material for improved broadband light absorption and photothermal conversion …
A dual-MOF PCN-224/PB shell for PCM was fabricated for the first time. • Broadband solar spectrum absorption on Uv–Vis–NIR range. • Efficient light to heat conversion through the electron-hole generation and non-radiative relaxation. • This work provides a new ...
Delignified wood for thermal energy storage with high efficient …
In this study, a phase change energy storage wood (PCES-Wood) with efficient photo-heat conversion efficiency was obtained by impregnating polyethylene …
Enhanced light-to-thermal conversion performance of all-carbon aerogels based form-stable phase change material composites …
The exploitation of excellent performance form-stable phase change material composites (FS-PCMCs) with enhanced photothermal conversion efficiency and high phase change latent heat is of great significance for thermal energy storage. In this work, a new type of ...
Advances in flexible hydrogels for light-thermal-electricity energy conversion and storage …
In order to improve energy efficiency and reduce energy waste, efficient energy conversion and storage are current research hotspots. Light-thermal-electricity energy systems can reconcile the limited supply of fossil fuel power generation with the use of renewable and clean energy, contributing to green and sustainable production and living.
Energy Conversion Efficiency
Energy Conversion Efficiency refers to the ratio between the maximum electrical power that can be produced by a solar cell and the power of the incident radiation it receives. The energy conversion efficiency of a solar cell is defined as the quotient between the maximum electrical power that can be delivered to the load and the power of the incident …
Advances in flexible hydrogels for light-thermal-electricity energy ...
In order to improve energy efficiency and reduce energy waste, efficient energy conversion and storage are current research hotspots. Light-thermal-electricity energy systems can reconcile the limited supply of fossil fuel power generation with the use of renewable and clean energy, contributing to green and sustainable production and …
Development of a sodium acetate trihydrate-based phase change …
The need to heat buildings during peak periods increases energy consumption. Solar/electric-to-thermal energy conversion heat storage systems can effectively address the heating mismatch issue due to variable solar light intensity. Sodium acetate trihydrate (SAT), borax, and sodium carboxymethyl cellulose (CMC) were used …
Processing wood into a phase change material with high solar-thermal ...
Timber-structured buildings are 5.3% more energy efficient than light-framed buildings and 8.1% more energy-efficient than concrete-structured buildings [4]. ... Form-stable phase change composites: preparation, performance, and applications for thermal energy conversion, storage and management. Energy Storage Mater, 42 …
Fatty acid eutectics embedded in guar gum/graphene …
The composite PCMs exhibit good energy storage capacity and thermal reliability. • Thermal conductivity of the composite PCMs exhibit nearly three times than that of SA-CA binary PCMs. • The composite PCMs shows high light-thermal conversion efficiency of 92.56 %.
The robust fluoride-free superhydrophobic thermal energy storage ...
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 …
Sustainable Porous Scaffolds with Retained Lignin as An …
The resulting POW/PCM composites exhibit superior comprehensive performance, including enhanced light absorption capacity, high photothermal …
Cellulose nanofiber/melanin hybrid aerogel supported phase change materials with improved photothermal conversion efficiency and superior energy ...
Organic phase change materials (PCMs) have been widely applied in thermal energy storage fields due to their good structural stability, high energy storage density, adjustable phase change temperature and non-toxicity. However, the poor solar-thermal conversion performance and structure stability restrict the large-scale …
Development of novel biomass hybrid aerogel supported …
Phase change materials (PCMs) have shown great application potential in sustainable energy utilization. The green preparation and efficient application are both focus of PCMs in research. In this paper, without any carbonized process under high temperature, bio-based sodium alginate (SA) and different content of ZrP nanosheets …
Superior Performance of Hollow Plasmonic Cubic Structures for …
Various technologies are explored to use it in solar energy harvesting devices such as photovoltaic [6,7,8,9], photoelectrochemical, and photo-thermal energy conversion mechanisms, which is a direct and simplest way to harvest and store solar energy. Efficient photo-thermal conversion of sunlight employing solar thermal …
Weavable coaxial phase change fibers concentrating thermal energy storage, photothermal conversion …
In situ preparation of light-driven cellulose-Mxene aerogels based composite phase change materials with simultaneously enhanced light-to-heat conversion, heat transfer and heat storage Compos. Part A-Appl. s., 155 ( 2022 ), pp. 106853 - 106861, 10.1016/j positesa.2022.106853
High-Efficiency Photo-Thermo-Electric System with Waste Heat Utilization and Energy Storage …
In a photo-thermo-electric system, solar energy is first converted into heat and then into electrical energy, which has attracted much attention. However, the heat of the cold side of a thermoelectric generator (TEG) is generally removed by an air-cooling or water-cooling technology without being fully utilized, resulting in a low solar energy …
Phase change materials encapsulated in a novel hybrid carbon skeleton for high-efficiency solar-thermal conversion and energy storage …
A novel hybrid skeleton was constructed by carbonizing PAAs with MXene and CNFs. • The presence of MXene and CNFs provided many heat transfer pathways and light absorbing sites. • CPCMs demonstrated outstanding solar-thermal conversion efficiency of 91.
A general methodology to measure the light-to-heat conversion …
Light-to-heat conversion has been intensively investigated due to the potential applications including photothermal therapy and solar energy harvesting.
Near-field thermophotovoltaics for efficient heat to electricity conversion …
Direct conversion of heat to electricity is expected to play a critical role in developing novel thermal energy storage and conversion 1 technologies. Thermophotovoltaic (TPV) devices that are ...
MXene Ti3C2: An Effective 2D Light-to-Heat …
The internal light-to-heat conversion efficiency of MXene, more specifically Ti 3 C 2, was measured to be 100%, indicating …
Efficient thermal energy conversion and storage enabled by …
The ability to achieve efficient solar energy utilization via photo-thermal conversion underscores the need for efficient working fluids in solar thermal collectors. However, traditional working fluids suffer from a set of disadvantages, including low heat storage density, low efficiency, and poor heat trans
Energy Conversion Efficiency
Water-cooled fuel cell: Simulation and experiments Yasaman Amirhaeri, ...Hamed Hadavi, in Handbook of Thermal Management Systems, 2023Abstract Fuel cells attract attention because of their high-energy conversion efficiency, but they are still known for significant heat generation., but they are still known for significant heat generation.