Experimental results show that the diffuse reflectance can be controlled to be <1.0% in the visible region (400–800 nm) for ultra-black absorption, leading to an impressive solar-thermal conversion efficiency of 88.37%. Meanwhile, the ultra-black film can be prepared by the etching method to have large sizes, large flexibility, and a diffuse
Customer ServiceThe films show desirable solar-thermal conversion and efficient electro-thermal storage performance in a short time. Abstract. Phase change materials (PCMs) are widely used in a range of energy storage applications due to high latent heat absorption and release capacities during phase change processes. There is still a lot to be done to resolve the inherent leakage,
Customer ServiceBased on the high mechanical strength and flexibility of the MC film, a solar-driven artificial muscle was designed to demonstrate a highly efficient pathway of solar thermal to mechanical work conversion. Furthermore, the efficient utilization of solar heat was exhibited by an MC film-based solar-driven water desalination system, taking
Customer ServiceThe results exhibited that the solar-thermal conversion efficiencies of CBF 1000 @T/P/PA composite PCM films were 31.42 %, 76.18 % and 89.81 % at solar radiation intensities of 75 mW/cm 2, 100 mW/cm 2 and 125 mW/cm 2, respectively. The CBF 1000 @T/P/PA PCM film presented favorable solar-thermal conversion efficiency and performance
Customer ServiceHere, we report that black photothermal materials elevate solar heating temperatures across high solar absorption and low infrared radiation. Fe 3 O 4 nanostructure films can be heated to 350 °C under light irradiation, and
Customer ServiceHere, we report that black photothermal materials elevate solar heating temperatures across high solar absorption and low infrared radiation. Fe 3 O 4 nanostructure films can be heated to 350 °C under light irradiation, and this system shows effective visible-light-driven ammonia synthesis production of 3677 μg g −1 h −1 under
Customer ServiceBenefiting from the oriented plasmonic particle-in-cavity configuration, the
Customer ServiceABSTRACT: 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
Customer ServiceThe hybrid film exhibits ultra-high solar absorbance (∼99%), low thermal
Customer ServiceTherefore, the optimal SBTP film exhibits high thermal enthalpy of 145.1 J g −1, enthalpy efficiency of over 94%, robust shape stability and low leakage of <1.2%. It also displays high photothermal conversion of over 80 °C, photothermal storage of 394 s g −1 and excellent stability.
Customer ServiceSolar thermal generates energy indirectly by harnessing radiant energy from the sun to heat fluid, either to generate heat, or electricity. To produce electricity, steam produced from heating the fluid is used to power generators. This is different from photovoltaic solar panels, which directly convert the sun''s radiation to electricity.
Customer ServiceHere, we report that black photothermal materials elevate solar heating temperatures across high solar absorption and low infrared radiation. Fe3O4 nanostructure films can be heated to 350 °C under light irradiation, and
Customer ServiceABSTRACT: Developing materials for efficient solar thermal energy conversion (STEC) is
Customer ServiceBenefiting from the oriented plasmonic particle-in-cavity configuration, the Janus films effectively convert sunlight into heat, trap the heat within their micrometer-depth structure, and facilitate its transfer along the direction of the nanostructure orientation.
Customer ServiceThe hybrid film exhibits ultra-high solar absorbance (∼99%), low thermal conductivity, and excellent light-to-heat conversion capacity. The temperature of the hybrid film increases from...
Customer ServiceExperimental results show that the diffuse reflectance can be controlled to be
Customer ServiceTherefore, the optimal SBTP film exhibits high thermal enthalpy of 145.1 J g −1, enthalpy efficiency of over 94%, robust shape stability and low leakage of <1.2%. It also displays high photothermal conversion of
Customer ServiceThe solar evaporator based on CNF@ZNM-MXene film displays fast water
Customer ServiceThe ceramic coatings possess excellent thermal stability in optical films. Here, we design the ZrB2-based all-ceramic spectrally selective absorber with a quasioptical microcavity (QOM) structure, which shows an excellent performance with a solar absorptance of 0.965 and superior thermal stability. The pretty high absorptance is due to the design of QOM inducing
Customer ServiceThe results exhibited that the solar-thermal conversion efficiencies of CBF
Customer ServiceThis paper describes a film composed of hybrid nanofibers of a metal–organic framework layered on cellulose (MC film), resulting in both high photothermal conversion and heat utilization
Customer ServiceSemantic Scholar extracted view of "Flexible graphene aerogel-based phase change film for solar-thermal energy conversion and storage in personal thermal management applications" by Keyan Sun et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar''s Logo . Search 222,987,237 papers from all fields of science. Search. Sign
Customer ServiceBesides, the lamellar structure with high interfacial adhesion endows the MXene/CNT film with high tensile strength and toughness, and remarkable flexibility. Simultaneously, the MXene/CNT film shows an outstanding solar-thermal energy conversion ability. Based on these glorious performances, the MXene/CNT film exhibits a huge potential in
Customer ServiceThe solar evaporator based on CNF@ZNM-MXene film displays fast water transport, high light absorption, and efficient solar-thermal conversion. The evaporation rate of 1.27 kg m −2 h −1 and solar-thermal conversion efficiency of 82.15% are achieved for the assembled evaporator.
Customer ServiceAugustin Mouchot demonstrated a solar collector with a cooling engine making ice cream at the 1878 Universal Exhibition in Paris.The first installation of solar thermal energy equipment occurred in the Sahara approximately in 1910 by Frank Shuman when a steam engine was run on steam produced by sunlight. Because liquid fuel engines were developed and found more
Customer ServiceMoreover, due to the unpredictability and intermission of solar radiation in time and space, thermal energy storage has been combined with solar-thermal conversion to overcome the gap between supply and demand in solar utilization [14, 15]. Specifically, there are two implementation modes, solar-thermal conversion/sensible heat storage and solar-thermal
Customer ServiceOn the other hand, solar energy, as a renewable and inexhaustible energy resource, has been widely explored in the field of renewable energy storage and conversion [9], [10], [11] nverting solar energy into thermal energy stored in PCMs system is an efficient utilization approach of solar energy [12], [13], [14] bining PCMs with solar-thermal
Customer ServiceThis paper describes a film composed of hybrid nanofibers of a metal–organic framework layered on cellulose (MC film), resulting in both high photothermal conversion and heat utilization
Customer ServiceThe hybrid film exhibits ultra-high solar absorbance (∼99%), low thermal conductivity, and excellent light-to-heat conversion capacity. The temperature of the hybrid film increases from 24 to 60
Customer ServiceLarge-sized ultra-black films with a light trapping structure were prepared. A low reflectivity of <1.0% was measured in the visible region. A high solar-thermal conversion efficiency of 88.37% was observed. The films could maintain the efficiency even under extreme conditions.
The results exhibited that the solar-thermal conversion efficiencies of CBF 1000 @T/P/PA composite PCM films were 31.42 %, 76.18 % and 89.81 % at solar radiation intensities of 75 mW/cm 2, 100 mW/cm 2 and 125 mW/cm 2, respectively.
The solar-thermal conversion storage efficiency (η S-T) can be defined as follows: [, , ]. (7) ‐ η S ‐ T % = m ⋅ ΔHm, com P ⋅ S ⋅ Δt × 100 % where m is the mass of CBF 1000 @T/P/PA, ΔH m, com is the enthalpy of the sample, P is the intensity of solar radiation, S is the surface area of the sample, and Δt is the phase transition time.
This paper describes a film composed of hybrid nanofibers of a metal–organic framework layered on cellulose (MC film), resulting in both high photothermal conversion and heat utilization efficiency.
In fact, the efficiency of current STEC materials is limited by the latter procedure, although the efficient photothermal conversion is often achieved. The main restriction of the effective utilization of the heat by the materials lies in the excessive thermal loss or exchange.
Obviously, the solar-thermal conversion efficiency of the present film (88.37%) is higher than most solar-thermal materials reported so far ( Fig. 9 c and Table S1 in Supporting Information). However, this value is lower than those for a few other materials, such as vertically aligned carbon nanotube arrays, Ti 2 O 3 and multilayer PPy nanosheets.
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