Our results confirmed that Ti 3 C 2 had an outstanding internal light-to-heat conversion efficiency (i.e., 100%) and the MXene membrane with an underlying heat barrier achieved 84% light-to-water-evaporation efficiency under 1 sun light illumination (1 kW/m 2), which is among the state of the art of such a system.
6 天之前· ConspectusEfficient photovoltaics (PV) require capturing and converting solar energy across a broad range of energy. Losses due to thermalization and sub-bandgap photons
By combining photo-thermal materials with PCMs, PCPCMs with high photo-thermal conversion efficiency can be prepared. Under the irradiation of sunlight, PCPCMs can absorb light and convert it into thermal energy under sunlight irradiation, rapidly heating up to achieve phase change heat storage. However, due to the lack of in-depth exploration
The heat stored in the PCM container will help to generate continuous solar energy at night and improve the thermal power conversion efficiency of the TEGs. The energy conversion equilibrium equation is established for the CTEG unit. By numerical calculation, we conclude that the absorption rate of the coating surface is reduced by 0.1 and the
Besides the light absorption of a photothermal material, the light-to-heat conversion efficiency is another essential factor that directly quantifies the absorbed energy transferred to thermal energy, instead of radiative re-emission of photons. One straightforward method for determining the conversion efficiency is to measure the increase in temperature
In this review, we proposed design strategies for efficient LTCMs by analyzing the physical process of light-to-thermal conversion. First, we analyze the nature of light absorption
As a fundamental property of materials, accurate measurement of light-to-heat conversion efficiency (LHCE) is of vital importance in developing advanced materials for
In this review, we proposed design strategies for efficient LTCMs by analyzing the physical process of light-to-thermal conversion. First, we analyze the nature of light absorption and heat generation to reveal the physical processes of light-to-thermal conversion.
Results showed that the actual efficiency of PCMs was less than 25%, which truly reflected the photo-thermal conversion performance of PCMs, demonstrating that more work
Results showed that the actual efficiency of PCMs was less than 25%, which truly reflected the photo-thermal conversion performance of PCMs, demonstrating that more work should be conducted to enhance the photo-thermal conversion performance for efficient solar energy utilization.
In this study, a series of reversible thermochromic MicroPCMs (RT-MPCMs) were synthetized through encapsulating ternary thermochromic mixtures via in-situ polymerization, and presented outstanding stable light-to-thermal conversion capability (η = 86.9%), excellent latent thermal energy storage-release performance (ΔH m = 171.9 J
Calculation of the photothermal conversion efficiency The photothermal conversion efficiency of the Cys-CuS NPs was determined according to the previous method. 1,2 Detailed calculation
We propose a photothermal and electrothermal equivalence (PEE) method that simulates the laser heating process with electric heating process. In electrothermal measurement, the heat dissipation...
6 天之前· ConspectusEfficient photovoltaics (PV) require capturing and converting solar energy across a broad range of energy. Losses due to thermalization and sub-bandgap photons place, however, significant boundaries on the performance of solar cells. For conventional single-junction cells, the theoretical maximum power conversion efficiency is capped at 33%, a constraint
However, in terms of photo-thermal conversion and storage by PCMs, as presented in Table 1, the majority of the open literature only considers the latent heat to calculate the photo-thermal conversion efficiency, which cannot reflect the actual photo-thermal conversion performance of PCMs during the whole energy conversion and storage process.
The heat stored in the PCM container will help to generate continuous solar energy at night and improve the thermal power conversion efficiency of the TEGs. The energy
Light-to-heat conversion has been intensively investigated due to the potential applications including photothermal therapy and solar energy harvesting. As a fundamental property of materials, accurate measurement of light-to-heat conversion efficiency (LHCE) is of vital importance in developing advanced materials for photothermal applications.
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 grafted boron nitride (GQDs-BN) as thermal conductive filler. The results show that the thermal stability and the dispersion of GQDs-BN
Light-to-heat conversion has been intensively investigated due to the potential applications including photothermal therapy and solar energy harvesting. As a fundamental property of materials
Due to a significant increase in the sunlight absorption of the system (Fig. 20 g), the light-to-thermal energy conversion and thermal energy storage efficiency of the system can be as high as 89%, and the system can have a fascinating durability (more than 100 cycles) for energy harvesting and storage applications [173].
Thermal Energy Geothermal, Ocean Thermal Radiant Energy Solar Chemical Energy Oil, Coal, Gas, Biomass Nuclear Energy Uranium, Thorium 6 Sustainable Energy – Fall 2010 – Conversion . Solar Photovoltaics Wind, hydro, waves tidal Ocean thermal Biomass fuels Chemical Nuclear Heat Mechanical work ElectricityElectricity Geothermal Fission & fusion Fossil fuels: gas, oil
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 was investigated to
Calculation of the photothermal conversion efficiency The photothermal conversion efficiency of the Cys-CuS NPs was determined according to the previous method. 1,2 Detailed calculation was given as following:
We propose a photothermal and electrothermal equivalence (PEE) method that simulates the laser heating process with electric heating process. In electrothermal
As a fundamental property of materials, accurate measurement of light-to-heat conversion efficiency (LHCE) is of vital importance in developing advanced materials for photothermal applications. Herein, we report a photothermal and electrothermal equivalence (PEE) method to measure the LHCE of solid materials by simulating the laser heating
Solar energy is a clean and inexhaustible source of energy, among other advantages. Conversion and storage of the daily solar energy received by the earth can effectively address the energy crisis, environmental pollution and other challenges [4], [5], [6], [7].The conversion and use of energy are subject to spatial and temporal mismatches [8], [9],
Light-to-heat conversion has been intensively investigated due to the potential applications including photothermal therapy and solar energy harvesting. As a fundamental
Our results confirmed that Ti 3 C 2 had an outstanding internal light-to-heat conversion efficiency (i.e., 100%) and the MXene membrane with an underlying heat barrier achieved 84% light-to-water-evaporation efficiency
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