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paraffin solar thermal storage

An experimental and numerical investigation on a paraffin wax/graphene oxide/carbon nanotubes composite material for solar thermal storage ...

The solar thermal storage system with the prepared composite material shows advantages of good solar thermal conversion and high thermal conductivity. A maximum overall system efficiency of 27% was achieved when the prepared composite material is employed, which is 1.92-fold higher than the efficiency obtained by pure …


Heat-energy storage device could make household solar power …

Although solar panels are active while the sun is shining, they typically don''t do much once the sun goes down. A newly-developed device, however, uses paraffin to store heat energy until it''s needed.


Solar photovoltaic cooling using Paraffin phase change material: …

Solar thermal collectors can be used to use solar energy for thermal uses, while SPV systems can be used to generate electricity [[9], [10], [11]]. The IEA analysis estimates that, SPV module installations will account for 16% of the world''s electricity generation in near future.


Nanomaterials | Free Full-Text | Bi-Functional Paraffin@Polyaniline/TiO2/PCN-222(Fe) Microcapsules for Solar Thermal Energy Storage …

A novel type of bi-functional microencapsulated phase change material (MEPCM) microcapsules with thermal energy storage (TES) and carbon dioxide (CO2) photoreduction was designed and fabricated. The polyaniline (PANI)/titanium dioxide (TiO2)/PCN-222(Fe) hybrid shell encloses phase change material (PCM) paraffin by the …


Cellulose nanofibril/carbon nanotube composite foam-stabilized paraffin phase change material for thermal energy storage …

The solar-thermal energy conversion efficiencies (i.e. thermal energy storage efficiencies) were 88% and 71% for PCM composite SCNF/CNT 20-Pw and SCNF/CNT 50-Pw, respectively. Increased addition of CNTs in PCM composite contributed to a higher thermal energy storage efficiency due to the enhanced heat absorption and …


Accelerated thermal cycle test of acetamide, stearic acid and paraffin ...

Sharma et al. [4] identified commercial grade acetamide, stearic acid and paraffin wax for low temperature solar thermal applications, studied these materials up to 300 cycles and noted the changes in their latent heat and melting point. In the Indore (Lat. 22.7°N), India, type climate, the number of sunny days is 300 in each year, and a ...


Phase change material heat storage performance in the solar thermal storage structure employing experimental evaluation …

The paraffin can maintain the phase change process for about 10 h at this temperature, which fully meets the requirements of the solar thermal storage. When the temperature reaches 105 ° and 115 °, the utilization rate of the paraffin in the thermal storage tank was further improved.


Solar photovoltaic cooling using Paraffin phase change material ...

Solar thermal collectors can be used to use solar energy for thermal uses, ... These systems are used to observe and store the waste heat exhausted by a SPV module in a thermal storage medium for better thermal management in electricity generation. ... However, paraffin-based PCM has low thermal conductivity, which …


Form-stable microencapsulated phase change materials for …

The paraffin, CaCl 2, sodium alginate, and Tween-80 utilized in this study were obtained as received and were of analytical grade, procured from Sinopharm Chemical Reagent Co., Ltd. ... presenting vast possibilities for the utilization of solar energy and thermal energy storage. Significantly, the microcapsule encapsulation method broadens …


Fabrication and Thermal Performance of 3D Copper-Mesh-Sintered Foam/Paraffin Phase Change Materials for Solar Thermal Energy Storage …

Fabrication and Thermal Performance of 3D Copper-Mesh-Sintered Foam/Paraffin Phase Change Materials for Solar Thermal Energy Storage May 2022 Processes 10(5):897


Preparation, optimization and thermal characterization of paraffin/nano-Fe3O4 composite phase change material for solar thermal energy storage ...

Section snippets Materials selection In this research, paraffin with a melting temperature of 48–53 C, purchased from Zhongjia new material Co., Ltd, Guangzhou, China, was adopted as the solid-liquid PCM. Nano-Fe 3 O 4 with a specific surface area of 50 m 2 /g, purity ≥ 99.9% and thermal conductivity of 46.52 W/(m·K) at 25 C was bought from …


Investigation of low grade thermal energy storage systems with …

Paraffin was chosen as the storage medium due to its vast flexibility in terms of melting temperatures and the cost advantage over the fatty acids. A square tank with an aspect ratio of 1 was investigated, as there is a limited amount of research done on such systems. ... Second law analysis of latent thermal energy storage for solar system ...


A Comprehensive Review of Thermal Energy Storage

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 …


High-Performance Phase-Change Materials Based on Paraffin and Expanded Graphite for Solar Thermal Energy Storage …

Phase-Change Materials Based on Paraffin and Expanded Graphite for Solar Thermal Energy Storage ... conductivity of the paraffin based PCM. The thermal conductivity of the PCM is found to increase ...


Preparation, characterization and performance of paraffin/sepiolite ...

Thermal stability is an essential parameter for evaluating composite PCMs for thermal energy storage or thermal regulation since the decomposition, degradation, and sublimation will restrict the usability of PCMs. Fig. 9 presents the TGA and DTG curves of the samples. Paraffin wax exhibits a typical one-step weight loss process at 269.6 °C ...


An experimental and numerical investigation on a paraffin …

The solar thermal storage system with the prepared composite material shows advantages of good solar thermal conversion and high thermal conductivity. A maximum overall system efficiency of 27% was achieved when the prepared composite material is employed, which is 1.92-fold higher than the efficiency obtained by pure …


High-Performance Phase-Change Materials Based on Paraffin …

The characterization results revealed that the short wormlike EG rods built a flexible framework in the paraffin matrix during blending, among which smaller …


Thermal performance of modified melamine foam/graphene/paraffin …

However, the solar-thermal storage efficiencies of MF@PPy/PW and MF@PPy-PODS/PW composite PCMs show a remarkable increase, reaching 71.25% and 75.68%. Furthermore, this study indicates that MF@PPy-PODS/GNP3/PW composite PCMs exhibit the highest solar-thermal storage efficiency of 79.36% due to the solar-thermal …


A comprehensive study of properties of paraffin phase change …

Paraffins are useful as phase change materials (PCMs) for thermal energy storage (TES) via their melting transition, Tmpt. Paraffins with Tmpt between 30 and 60 …


Preparation, characterization and performance of paraffin/sepiolite composites as novel shape-stabilized phase change materials for thermal …

Compared with the thermal conductivity of pure paraffin of 0.25 W m-1 K-1, not only is the thermal response ... limited their use in the storage of solar thermal energy. To address these issues ...


Solar thermal conversion and thermal energy storage of CuO/Paraffin …

In addition, owning to powerful solar-thermal conversion of S–Ni foams, the developed FSPCMs can energetically convert solar energy into latent heat storing by paraffin with reversible solar ...


Improved solar still productivity using PCM and nano

2 · Materials The latent heat storage substance is solid paraffin with a melting temperature of 62 C, which was purchased at chittinagar, Vijayawada, India. Al 2 O 3 …


Heat transfer enhancement of paraffin wax using graphite foam for thermal energy storage …

As shown in Fig. 3, latent heat of Paraffin-GF systems increases with the increasing of the mass ratio of the paraffin wax in the composite.Latent heat values listed in Table 3 can be drawn out an almost linear relationship from Fig. 3 as follows: H = − 3.76 + 1.48 w Where H is the latent heat (J/g), w (%) is the mass ratio of the paraffin wax in the …


High-Performance Phase-Change Materials Based on Paraffin and Expanded Graphite for Solar Thermal Energy Storage …

DOI: 10.1021/acs.energyfuels.0c00955 Corpus ID: 225475087 High-Performance Phase-Change Materials Based on Paraffin and Expanded Graphite for Solar Thermal Energy Storage In this work, a novel type of stearic acid-modified exfoliated graphite (SEG) with ...


Accelerated Thermal Cycling Test of Microencapsulated Paraffin …

Microencapsulated paraffin wax/polyaniline was prepared using a simple in situ polymerization technique, and its performance characteristics were investigated. Weight losses of samples were determined by Thermal Gravimetry Analysis (TGA). The microencapsulated samples with 23% and 49% paraffin showed less …


Solar photovoltaic cooling using Paraffin phase change material: …

This comprehensive assessment findings show that a Paraffin-based phase change material cooling approach can cope with a greater drop in solar photovoltaic …


Stability analysis of TiO2–Ag nanocomposite particles dispersed ...

Tun-Ping Teng et al. [10] studied on thermal storage properties of the paraffin wax with different metal oxide nano particles like TiO 2, Al 2 O 3, SiO 2 and ZnO. ... the prepared NePCM could be strongly recommended as the efficient composite for solar thermal applications due to their better thermal stability, reliability, enhanced thermal ...


Energy storage enhancement of paraffin with a solar-absorptive …

Solar thermal conversion and thermal energy storage of CuO/Paraffin phase change composites Int J Heat Mass Tran, 130 ( 2019 ), pp. 1133 - 1140, 10.1016/j.ijheatmasstransfer.2018.11.026 View PDF View article View …


A foamed cement blocks with paraffin/expanded graphite composite phase change solar thermal absorption material

A foamed cement blocks with paraffin/expanded graphite composite phase change solar thermal absorption material. / Liu, Lifang; Chen, Jiayu; Qu, Yue et al. In: Solar Energy Materials and Solar Cells, Vol. 200, 110038, 15.09.2019.Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review


Accelerating the solar-thermal energy storage via inner-light …

Here, authors introduce optical waveguide to regulate the solar-thermal conversion interface to enable the fast energy harvesting in solar-thermal energy …


Simulation of melting paraffin with graphene nanoparticles within …

1 Altmetric. Metrics. Abstract. In this paper, applying new structure and loading Graphene nanoparticles have been considered as promising techniques for …


Microencapsulated Paraffin Phase-Change Material with Calcium Carbonate Shell for Thermal Energy Storage and Solar-Thermal …

A series of microencapsulated phase-change materials (MEPCMs) based on paraffin core and calcium carbonate (CaCO3) shell were synthesized, and the effect of emulsifier type and pH value on morphology, structure, and properties of paraffin@CaCO3 MEPCMs were investigated. The results showed that CaCO3 shell was formed in vaterite and calcite …


Structural characteristics and thermal performances of paraffin …

Thermal reliability. Phase change energy storage. As an inexpensive and easily available organic phase change material (PCM), paraffin has good energy storage …


Experimental investigations on thermal properties of nano-SiO2/paraffin phase change material (PCM) for solar thermal energy storage applications ...

ABSTRACT This paper investigates the influence of low mass% SiO 2 nanoparticles on the thermal properties of the paraffin wax for solar thermal energy storage applications. The four nano-SiO 2 /paraffin PCM samples containing, 0.0 mass%, 0.5 mass%, 1.0 mass%, and 2.0 mass% of SiO 2 nanoparticles in paraffin wax were …


Characterization of Hybrid-nano/Paraffin Organic …

In this work, the experimental investigations were piloted to study the influence of hybrid nanoparticles containing SiO2 and CeO2 nanoparticles on thermo-physical characteristics of the paraffin-based …


Simulation of melting paraffin with graphene nanoparticles within a solar thermal energy storage …

Thermal storage system with triplex tube involving innovative structure of paraffin zone. Full size image Table 1 Properties of material and formulation of NEPCM 13, 14, 15 .


Synthesis and characterization of copper nanoparticles …

Altogether, the obtained results have revealed that the enhanced properties make nano-Cu–paraffin composite PCM as right candidate for solar thermal energy …