Free Quote
Welcome to inquire about our products!
An effective strategy to employ the synthetic Cu 1.5 Mn 1.5 O 4 spinel-type PTC materials for constructing the STEG device series integrated supercapacitor to achieve the conversion and storage of solar-thermal energy to electrical energy. Download : Download high-res image (223KB)
1. Introduction. Latent heat storage (LHS) employing phase change materials (PCMs) with unique phase change features has become one of the most significant thermal energy storage technologies, which can not only well balance the thermal energy supply and requirement, but also display a vital role in the utilization of
The results of the thermal effects of integrating NCPCMs into solar energy systems on collector efficiency, solar energy storage and conversion are noteworthy. Mandal et al. [57] used various CuO nanoparticle concentrations (0.25, 0.5, 0.75 and 1 wt%) to increase the thermal conductivity of paraffin wax as PCM in solar water
Harvesting solar energy for energy utilization is an important way to utilize solar energy. This work designs an efficient solar-thermal conversion and
So far, the highest level of solar-thermal conversion efficiency has been reported, even more than 100% of the combined structural and material design [26], Dynamic tuning of magnetic phase change composites for photo-thermal conversion and energy storage. Appl. Energy, 263 (2020), Article 114570. View PDF View article View
Thermal energy storage is an effective way to alleviate the mismatch between thermal energy supply and demand in terms of time, intensity, and location, providing a path for high-efficiency energy saving and efficient use of solar energy [9, 10].
We achieve solar thermal efficiency up to 85% at only 10 kW m-2. This high performance results from four structure characteristics: absorbing in the solar spectrum, thermally insulating, hydrophilic and interconnected
Here, authors introduce optical waveguide to regulate the solar-thermal conversion interface to enable the fast energy harvesting in solar-thermal energy
MXene/d-Mannitol aerogel phase change material composites for medium-temperature energy storage and solar-thermal conversion. J. Energy Storage, 67 (2023), pp. 107498-107507, 10. Ti 3 C 2 Tx@PDA-integrated polyurethane phase change composites with superior solar-thermal conversion efficiency and improved thermal
Photo-thermal conversion phase-change composite energy storage materials (PTCPCESMs) are widely used in various industries because of their high thermal conductivity, high photo-thermal conversion efficiency, high latent heat storage capacity, stable physicochemical properties, and energy saving effect.
Abstract. Solar energy is the most promising and permanent energy source due to its large magnitude received on earth daily. The effective use of this energy source is relied on developing inexpensive, stable, and clean storage and harvesting devices. The harvesting technologies can capture and convert energy into forms that the systems can use.
The results of the thermal effects of integrating NCPCMs into solar energy systems on collector efficiency, solar energy storage and conversion are noteworthy. Mandal et al. [57] used various CuO nanoparticle concentrations (0.25, 0.5, 0.75 and 1 wt%) to increase the thermal conductivity of paraffin wax as PCM in solar water
Impregnating organic phase change materials (PCMs) into cellulose-based aerogels is considered as an accessible and effective technology to prevent the liquid leakage issue due to the superior surface tension and capillary force. However, the poor solar-thermal conversion performance, high flammability, and
In general, materials for solar-thermal energy conversion and storage should exhibit high energy conversion efficiency, high energy storage capacity, good stability in
Therefore, it is imperative to develop phase-changing microcapsules with superior solar-thermal conversion capability and extremely high energy storage density for efficient solar energy storage. To the best of our knowledge, no studies have been focused on improving the solar-thermal conversion efficiency and mechanical
In terms of solar-thermal energy conversion and storage, the carbonization of biomass to biochar not only has a rich porous structure, but also has increased graphitization and good light absorption capacity, leading to improved thermal conductivity as well as solar-thermal conversion efficiency of ss-CPCMs (Li et al.
By connecting with a thermoelectric generator, the harvested solar–thermal energy can be further converted into electricity with a solar–thermal–electric energy conversion efficiency up to 2
Solar thermal conversion technology employing phase change composites is an available strategy for solar thermal energy utilization and storage. In
Developing materials for efficient solar thermal energy conversion (STEC) is currently a promising field in energy research. Traditional STEC materials such as carbon and plasmonic nanomaterials have limited efficiency of solar heat utilization, despite their high photothermal conversion efficiency. This paper describes a film composed of hybrid
TCES allows long-term storage and has a significantly higher energy density than other thermal energy storage systems, such as phase change materials or sensible heat storage systems [17]. TCES uses heat from an external source, such as concentrated solar energy, to drive an endothermic reaction [ 18 ].
Solar/electric-to-thermal energy conversion heat storage systems can effectively address the heating mismatch issue due to variable solar light intensity. T3 could be heated and cooled at a relatively faster rate. The solar-to-thermal energy conversion efficiency of T3 was calculated to be 90.3% using Equation (1), which was
By connecting with a thermoelectric generator, the harvested solar–thermal energy can be further converted into electricity with a solar–thermal–electric energy conversion
Here, a solar-to-chemical conversion efficiency of 0.7 % is reached for a resorcinol-formaldehyde resin powder prepared via acid-catalyzed high-temperature hydrothermal synthesis.
However, the poor solar-thermal conversion performance, high flammability, and low thermal conductivity still restrict the large-scale application of organic PCMs. Herein, two-dimensional (2D)-layered black phosphorus (BP) nanosheets having a superior photothermal effect were synthesized from a BP crystal through ultrasonication-assisted
To overcome these constraints of solar energy, Thermal Energy Storage (TES) can play a pivotal role in improving performance and feasibility of solar
The objective of this study is to conduct a comprehensive review of various methods, materials, and characterization techniques used to overcome the drawbacks of poor thermal conductivity, leakage of PCM, and poor solar to thermal conversion efficiency. 2. Thermal energy storage
There were early studies using photoisomerization of azobenzene compounds for solar energy conversion and storage more than 30 years ago. In 1983, Olmsted et al. studied photochemical
The solar-to-thermal energy conversion efficiency was measured using the solar-to-thermal energy conversion test system shown in Fig. 7 (a). For the convenience of comparison, specific conditions were applied. All samples were normalized to a diameter of 2.8 ± 0.2 cm, and the results are illustrated in Fig. 7 (c) and 7(d). The
Remarkably, the solar-thermal conversion and storage capacity of CPCMs are greatly improved by TpPa, with its outstanding capacity for light absorption and high surface areas. The solar-thermal conversion efficiency of CPCMs ranges from 89.58% to 96.80%
Redundant conduction and convection processes are avoided, making integrated efficient solar-to-thermal conversion and fast thermal energy storage possible. Nevertheless, most PCMs suffer from poor absorption of sunlight and low thermal conductivity(λ) [22], resulting in low solar-to-thermal conversion efficiency and slow
The solar-thermal energy conversion and storage efficiency (ξ) of ADPCM was calculated via the following Eq: ξ = m Δ H m PS × (T t-T 1) × 100 % where m is the mass of ADPCM, Δ H m is the melting enthalpy of ADPCM, P is the light irradiation intensity (250 mW•cm −2), S is the received irradiation area of ADPCM, and T 1 and T t
The development of solar-thermal fuels using photoresponsive compounds represents a unique strategy for solar-thermal energy conversion and storage. 1-6 Azobenzene is an important compound that is proposed for solar-thermal fuels. 3-9 Azobenzene is a photoswitchable compound (Figure 1a). 10-12 Usually, trans
Solar collectors and thermal energy storage components are the two kernel subsystems in solar thermal applications. Solar collectors need to have good optical performance (absorbing as much heat as possible) [3], whilst the thermal storage subsystems require high thermal storage density (small volume and low construction
Among various utilizations of solar energy, solar-thermal conversion has recently gained renewed research interest due to its extremely high energy efficiency. However, one limiting factor common to all solar-based energy conversion technologies is the intermittent nature of solar irradiation, which makes th
Although organic phase-change materials (PCMs) have been widely used for thermal energy storage, their high flammability, poor photothermal conversion efficiency, and liquid leakage issues severely restrict their practical applications in solar–thermal fields. Herein, novel form-stabilized composite PCMs (CMPCMs) with high energy storage
CPCMs exhibited a high solar-thermal conversion efficiency of 91.8 %, and a thermal conductivity of 0.40 W·m −1 ·K −1 with 60 % improvement compared to pure PCM. Furthermore, the CPCMs demonstrated excellent thermal stability, chemical
TPVs can enable new approaches to energy storage 1, 2 and conversion 3, 4, 5, 6, 7, 8, 9 that use higher temperature heat sources. In this section, we highlight two promising applications for high
1. 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
1. Introduction. Thermal Energy Storage (TES) has been seen as one of the potential technologies that can significantly enhance the performance of renewable energy systems as well as make renewable energy time-independent, especially solar energy [1], [2].This is because it stores the available thermal energy during sunshine
However, the poor solar-thermal conversion performance, high flammability, and -stable phase change composites based on black phosphorus nanosheets/cellulose nanofiber aerogels with extremely high energy storage density and superior solar-thermal and solar-thermal conversion and storage efficiency (up to 87.6%) of the CBPCMs.
Welcome to inquire about our products!