The judicious combination of nanofluid and direct absorption solar collector (DASC) is one of the effective ways to solve this problem. ... Jin, 2019. "Continuous flow-based laser-assisted plasmonic heating: A new approach for photothermal energy conversion and utilization," Applied Energy, Elsevier, vol. 247(C), pages 517-524.
For the use of volumetric absorption solar thermal collector (VASTC), the thermo-optical properties, photothermal conversion characteristics and economics of MWCNT (Multi-walled carbon nanotube) (0.0005–0.004 wt%), Fe 3 O 4 (0.025–0.1 wt%), and antimony
Solar absorber, which effectively collects solar energy and converts it into thermal energy, is the essential component of a solar thermal system such as concentrated solar power, thermophotovoltaic systems. However, most highly efficient solar absorbers require expensive lithographic techniques to implement. Therefore, in this work, we propose a …
As the major device of solar thermal system, solar collector is defined as a heat exchanger which converts solar energy into thermal energy within the working fluid [5] the end of 2019, an estimated 479 GW-thermal of solar collectors was in operation [6], whereas the low efficiency of solar collectors has become an bottleneck restricting its development.
The solar photothermal conversion efficiency was calculated based on the energy balance during the process, i.e., energy absorbed and converted by the working fluid from the solar radiation is equal to the sum of the heat dissipated to the surroundings and the
With the development of society, energy shortage and environmental problems have become more and more outstanding. Solar energy is a clean and sustainable energy resource, potentially driving energy conversion and …
As the supply of non-renewable energy sources dwindles, developing and utilizing new energy sources have attracted worldwide attention [1, 2].Solar energy stands out among many renewable energy sources because of its excellent environmental friendliness, wide distribution, and low utilization cost [3, 4].Solar energy utilization is mainly divided into two …
The solar absorption efficiency of water as a base-fluid can be significantly improved by suspending nanoparticles of various materials in it. This experimental work presents the photo thermal performance of water-based nano-fluids of graphene oxide (GO), zinc oxide (ZnO), copper oxide (CuO), and their hybrids under natural solar flux for the first time. …
2 · 2-D carbon-based materials are well-known for their broadband absorption properties for efficient solar energy conversion. However, their high reflectivity poses a challenge for …
Various thermal, photo-, and photothermal catalysis processes have been developed to promote solar fuel and chemical energy conversion, delivering different reactivity, …
DOI: 10.1016/j.enconman.2020.113515 Corpus ID: 225142920; Numerical analysis of photothermal conversion performance of MXene nanofluid in direct absorption solar collectors @article{Li2020NumericalAO, title={Numerical analysis of photothermal conversion performance of MXene nanofluid in direct absorption solar collectors}, author={Xueling Li and …
applications [1 –3]. In particular, solar thermal conversion is the most direct and eective way of solar energy application and can be widely used on solar thermal collectors [4], solar distillation [5], and photovoltaic/thermal systems [6 ]. In conventional photothermal conversion systems, solar energy is collected by a black surface with ...
DOI: 10.1016/j.solener.2020.03.047 Corpus ID: 216239301 Mesoporous CuO with full spectrum absorption for photothermal conversion in direct absorption solar collectors @article{Zhang2020MesoporousCW, title={Mesoporous CuO with full spectrum absorption for photothermal conversion in direct absorption solar collectors}, author={Hongyun Zhang and …
6 · Photothermal nanoreactors, characterized by their notable photothermal effects, are nanoscale or sub-micron-sized reactors that serve as highly efficient platforms for photocatalytic solar energy conversion, offering enormous opportunities for optimizing energy
Commencally or potentially available selective and non-selective absorber surfaces for solar heat collectors are reviewed and the state-of-the-art of solar collector corrosion processes is outlined. The review of available published literature has indicated that a lack of quantitative information exists, relative to corrosion of collector surfaces. Available information (mostly qualitative) on ...
In this review, we comprehensively summarized the state-of-the-art photothermal applications for solar energy conversion, including photothermal water evaporation and desalination, photothermal catalysis for H 2 generation …
Among the practical applications of solar thermal conversion, direct (volumetric) absorption solar collectors (DASC) [8, 9] are one of the most representative application devices. In 2010, Otanicar et al. [ 10 ] first proposed a solar collector based on nanofluids and demonstrated that the efficiency can increase about 5% by using nanofluids as an absorption …
Solar energy can be utilized in different forms, most notably solar-to-electrical (photovoltaic), solar-to-chemical (photosynthesis) and solar-tothermal (photothermal) energy conversion [8, 9].
At present, solar energy is mainly used through photoelectric conversion [2], photothermal conversion [3], photochemical conversion [4], etc. Solar irradiation is absorbed and then converted to thermal energy by the solar collector, which is the key device in the
Furthermore, the integration of magnetic nanoparticles and external magnetic fields can improve the photothermal conversion efficiency of solar collectors using other solar media. The ongoing development of functional magnetic nanomaterials is expected to further advance the utilization of solar energy through photothermal conversion.
Photothermal conversion efficiency refers to the effectiveness with which a material can convert absorbed light energy into heat energy. This efficiency is particularly important in applications where light energy is harnessed for heating purposes, such as solar thermal systems, photothermal therapy in medicine, or photocatalysis for ...
At present, solar energy is mainly used through photoelectric conversion [2], photothermal conversion [3], photochemical conversion [4], etc. Solar irradiation is absorbed and then converted to thermal energy by the solar collector, which is the key device in the photothermal conversion system.
Abstract. Recently, direct absorption solar collector (DASC) system has emerged a new class of solar collectors with much improved solar thermal conversion potential over conventional surface-based absorption solar collectors. Further, introducing noble metallic particles like Ag, Au, Al, TiN, or Cu (at nano ranges) in the working fluids enhanced the optical …
Photothermal conversion efficiency refers to the effectiveness with which a material can convert absorbed light energy into heat energy. This efficiency is particularly …
Diversifying solar energy conversion products and balancing photoelectron generation and transduction are critical to unravel the potential of hybrid photocatalysis.
By contrast, DASCs can directly absorb solar radiation and convert it into thermal energy through an HTF [8], [9]; this results in a higher photothermal conversion efficiency and greater application potential than that of conventional surface-based solar collectors,,
Solar energy can be utilized in different forms, most notably solar-to-electrical (photovoltaic), solar-to-chemical (photosynthesis) and solar-tothermal (photothermal) energy conversion [8, 9 ...
Biotic-abiotic photosynthetic systems hold great promise to innovate solar-driven chemical transformation. Here, the authors construct a biotic-abiotic hybrid system composed of Shewanella ...
Optimal optical absorption properties are imperative for the utilization of nanofluids in solar energy applications. Excellent optical absorption facilitates the augmentation of solar energy utilization efficiency. The base fluid contributes significantly to the optical properties of the nanofluid. However, the effect of base fluid on the nanofluid optical properties has yet to …
5 · Solar energy, in particular, has demonstrated substantial potential due to its free availability, high abundance, and environmental friendliness. 1-3 One efficient method for …
In this review, we look into the basis of the photothermal conversion process, the design of efficient photothermal conversion materials in terms of both light harvesting and thermal management, a fundamental understanding of various …
The photothermal conversion efficiency of 50 ppm mesoporous CuO/water nanofluid is 83.66%, compared with 58.86% for 50 ppm CuO/water nanofluid. Mesoporous …
DOI: 10.1016/J.SOLMAT.2019.110084 Corpus ID: 201217378 Plasmonic nanofluids for high photothermal conversion efficiency in direct absorption solar collectors: Fundamentals and applications Addition of a small amount of nanoparticles to the working fluids of a ...
Photothermal conversion is one of the most effective ways of absorbing and utilizing solar energy. The key issues of photothermal conversion are seeking for nanofluids with strong and wide-range ...
The widespread application of solar-thermal absorbers is currently hindered by their low absorption efficiency and high capital cost. Therefore, many initiatives, including direct absorption solar collectors (DASCs), are currently under way to improve the efficiency of the absorbers. In this regard, the application of TiN-modified h-BN nanosheets in DASCs is studied …
The solar collector represents the central component in the realization of solar photothermal conversion. Conventionally, solar collectors feature a selective absorbent coating plate that captures solar radiation and transforms it into thermal energy. Subsequently, convective heat transfer facilitates the transfer of this heat to the working ...
