In this study, a phase change energy storage wood (PCES-Wood) with efficient photo-heat conversion efficiency was obtained by impregnating polyethylene …
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By connecting with a thermoelectric generator, the harvested solar–thermal energy can be further converted into electricity with a solar–thermal–electric energy conversion...
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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 …
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Finally, it is concluded that the solar-to-thermal conversion efficiency of MP-4 is 97.16%, showing excellent solar-to-thermal conversion ability. MPCMs as solar absorbers have broad application prospects in solar energy utilization.
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In this work, an efficient solar-thermal conversion and thermal energy storage strategy is proposed. A novel energy storage gel composed of octadecanol (OD), styrene ethylene butylene styrene (SEBS) and carbon nanotube (CNT) is fabricated by screen-printing.
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Meanwhile, the duration of the plateau during the natural cooling process also indicates that C-EG-MCS-HDA has a higher energy storage capacity. The light-thermal energy conversion and storage efficiency (η) can be calculated by the Eq. (2) (Zhou et al., 2019
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3 · Abstract The widespread utilization of organic phase change materials (PCMs) in thermal energy storage technologies is often limited by the shape instability, low …
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Thermal energy storage (TES) is a technology that stocks thermal energy by heating or cooling a storage medium so that the stored energy can be used at a later time for heating and cooling applications and power generation. TES systems are used particularly in buildings and industrial processes. In these applications, approximately half of the ...
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Processing wood into a phase change material with high solar-thermal conversion efficiency by introducing stable polyethylene glycol-based energy storage polymer Author links open overlay panel Yanchen Li a b c, Beibei Wang a c, Weiye Zhang a c, Junqi Zhao c, Xiaoyang Fang a c, Jingmeng Sun c, Rongqi Xia a c, Hongwu Guo …
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Renewable energy and increased electrification are central to many countries'' decarbonization strategies – and for good reason: We urgently need to cut emissions and 90% of those reductions can be attained …
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Enhanced light-thermal conversion efficiency of mixed clay base phase change composites for thermal energy storage Author links open overlay panel Chengjun Wang a b, Weidong Liang a, Zuoqun Tang a, Juan Jia a, Fang Liu a, Yueyue Yang a, Hanxue Sun a, Zhaoqi Zhu a, An Li a
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Overall, the regional PV residual electricity thermal conversion and storage system proposed in this study is considered an innovative energy utilization method with significant practical application value and large …
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This study deals with thermodynamic analyses of an integrated wind thermal energy storage (WTES) system. The thermodynamic analyses of the proposed system are performed through energy and exergy approaches, and the energy and exergy efficiencies of the components in the system and overall system are determined and …
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To enable high-performance seasonal thermal energy storage for decarbonized solar heating, the authors propose an effective method to realize ultrastable …
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Usually, the thermal energy conversion efficiency of boiler is only 80–90% and thus the energy utilization efficiency of conventional energy-generation system is just 49–56% [12]. In contrast, BCHP system generates power at or …
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Antora Energy in California launched a thermal energy company in 2016. Lenert and others are eyeing their own startups. And Henry recently launched a venture—Thermal Battery Corp.—to …
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Thermal energy storage ( TES) is the storage of thermal energy for later reuse. Employing widely different technologies, it allows surplus thermal energy to be stored for hours, days, or months. Scale both of storage and use vary from small to large – from individual processes to district, town, or region.
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Among the thermal energy storage materials studied here, sand enabled the storage system''s efficiency to reach 85% thanks to its wide range of operating …
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The electric thermal energy storage generation cost with one-week energy storage becomes 15 cents/kWh when a renewable generation cost falls to 2.5 cents/kWh in 2030 using existing technology. Nine cents/kWh, which is competitive energy cost, is expected when a combined heat and power application or thermal to electricity …
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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 strength …
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Concerns over air quality reduction resulting from burning fossil fuels have driven the development of clean and renewable energy sources. Supercapacitors, batteries and solar cells serve as eco-friendly …
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Conclusions. We report two-junction TPV cells with efficiencies of more than 40% using an emitter with a temperature between 1,900 and 2,400 °C. The efficiency of the 1.4/1.2 eV tandem reaches 41 ...
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Thermophotovoltaics (TPVs) convert predominantly infrared wavelength light to electricity via the photovoltaic effect, and can enable approaches to energy …
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The ability to achieve efficient solar energy utilization via photo-thermal conversion underscores the need for efficient working fluids in solar thermal collectors.
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The electro-thermal conversion and storage efficiency (η) can be calculated through η = mΔH/UIt, in which m is the total mass, ... As a result, the electro-thermal energy conversion efficiency of composite PCMs is …
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Herein, we systematically summarize the optimization strategies and mechanisms of recently reported composite PCMs for thermal energy storage, thermal transfer, energy …
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With the increasing importance of electronic devices in modern industry, considerable efforts have been devoted to solving the problem that the electronic devices fail to work normally in a cold environment. Herein, we designed and fabricated a graphene wrapped wood-based phase change composite with electro-thermal conversion and …
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Phase change material for solar-thermal energy storage is widely studied to counter the mismatch ... This approach achieved fast charging rate and high solar-thermal energy conversion efficiency ...
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For energy-efficient heating or cooling in buildings, utilizing solar thermal energy in households is an alternative option as it eliminates the need to convert solar energy into electricity ...
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The storage duration is commonly in the range of minutes to hours for the temperature above 300°C. The different storage concepts result in characteristic discharge powers, temperature, and pressure levels, which must be considered. For example, the thermal power of the regenerator type storage is time depended.
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Thermal energy storage (TES) is increasingly important due to the demand-supply challenge caused by the intermittency of renewable energy and waste heat dissipation to the environment. This paper discusses the fundamentals and novel …
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In addition, the paraffin/rGO/GNP/MF composite PCMs also exhibited excellent solar-to-thermal energy conversion efficiency (88%) and electric-to-thermal energy conversion efficiency (62.5%). These …
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A Year in Review: Advancing Energy Storage and Conversion Research. Jan. 10, 2022 | Contact media relations. The energy system of the future must successfully utilize large amounts of variable …
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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, …
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