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Materials | Free Full-Text | Experimental Study and Mechanism Analysis of Paraffin/Sisal Composite Phase Change Energy Storage Fiber …
Chen C, Fu Q, Cao R, Chen Z, Zhang Z, Xia K, You N, Jiang Y, Zhang Y. Experimental Study and Mechanism Analysis of Paraffin/Sisal Composite Phase Change Energy Storage Fiber Prepared by Vacuum Adsorption …
Experimental Study and Mechanism Analysis of Paraffin/Sisal …
The observations reveal that a substantial portion of paraffin is primarily stored within the pores of the fiber, while a smaller quantity is firmly adsorbed onto its …
Core–shell-like structured graphene aerogel …
The development of energy storage materials is critical to the growth of sustainable energy infrastructures in the coming years. Here, a composite phase change material (PCM) based on graphene and paraffin was …
Construction and Design of Paraffin/PVDF Hollow Fiber Linear …
Based on the accidental discovery, a linear-phase change energy storage material (PCESM) could be designed by encapsulating phase change materials with hollow fiber membranes (HFMs). Using HFM as a carrier for PCESM served two …
Cutting copper fiber/paraffin composite phase change material …
In this work, copper fiber/paraffin composite phase change material (CPCM) was prepared based on solid-phase sintering technology. Li-ion batteries in four types of heat dissipation methods (natural wind cooling, filled with pure paraffin, copper foam/paraffin, and copper fiber/paraffin) were tested under different discharging currents.
Solar Thermal Energy Storage Using Paraffins as Phase Change Materials …
Thermal energy storage (TES) using phase change materials (PCMs) has received increasing attention since the last decades, due to its great potential for energy savings and energy management in the building sector. As one of the main categories of organic PCMs, paraffins exhibit favourable phase change temperatures for solar …
Journal of Energy Storage
Compared with traditional sensible heat storage materials, the heat storage of a PCM is based on its phase change process which has the virtue of small temperature fluctuation, high energy density [4, 5], repeated use and long-term durability [[6], [7] – 8].
Paraffin Wax-Based Thermal Composites | IntechOpen
Paraffin waxes are organic phase change materials possessing a great potential to store and release thermal energy. The reversible solid–liquid phase change phenomenon is the under-lying mechanism enabling the …
Thermal conductivity enhancement of phase change materials with 3D porous diamond foam for thermal energy storage …
In this research, paraffin wax, a common phase change material, was infiltrated into the porous diamond foam with 3D thermal conductive channels for energy storage application. Pure paraffin, as well as composites incorporated with porous Cu foam (CF/paraffin) and diamond particles (DP/paraffin), was also characterized for comparison.
Experimental and numerical investigations on a flexible paraffin/fiber composite phase change …
Thermal energy harvesting, storage, conversion and utilization technologies based on phase change materials (PCMs) have received widely attention. The intelligent integration of PCMs with functional carriers or nano-additives enables the application of energy such as thermal, light, electricity and magnetism in different fields.
Shape stabilization, thermal energy storage behavior and thermal conductivity enhancement of flexible paraffin/MWCNTs/PP hollow fiber …
The paraffin in LKaol/paraffin composite showed higher crystallinity (Fc, 98.4%) and greater effective energy storage per unit mass (Eef, 215.6J·g-1) than that in the two other composites ...
High-Performance Phase-Change Materials Based on Paraffin and Expanded Graphite for Solar Thermal Energy Storage | Energy …
A tradeoff between high thermal conductivity and large thermal capacity for most organic phase change materials (PCMs) is of critical significance for the development of many thermal energy storage applications. Herein, unusual composite PCMs with simultaneously enhanced thermal conductivity and thermal capacity were prepared by …
Experimental Study and Meschanism Analysis of Paraffin/Sisal Composite Phase Change Energy Storage Fiber …
PCM paraffin. This process led to the production of composite phase change fibers, which consist of paraffin embedded within sisal fibers and are utilized for energy storage. Multi-ple factors, such as the mass ratio of paraffin to …
Coatings | Free Full-Text | Preparation and Thermal …
Paraffin is one of the most common and promising phase change materials to store and release thermal energy. The inadequacy of paraffin lies in its low thermal conductivity, which affects its further …
Phase-change smart lines based on paraffin-expanded graphite/polypropylene hollow fiber membrane composite phase change materials for heat storage ...
1. Introduction Paraffin as a member of phase change materials (PCMs) for energy storage exhibits the advantages of non-toxicity, chemically inert, plasticity and low cost [1, 2].However, paraffin as an energy storage material is difficult to …
Core-shell paraffin/silica nanocomposite: A promising phase change material for thermal energy storage …
The peaks of pure phase change material i.e., n ¼ 1058 cm À1, 1150 cm À1, 1296 cm À1, and 1460 cm À1 were observed and can be attributed to CeC (carbon-carbon) stretching and CH 2 and CH 3 ...
Experimental Study and Mechanism Analysis of Paraffin/Sisal …
The observations reveal that a substantial portion of paraffin is primarily stored within the pores of the fiber, while a smaller quantity is firmly adsorbed onto its surface, thus …
Experimental Study and Mechanism Analysis of Paraffin/Sisal …
This research successfully employs vacuum adsorption to encapsulate paraffin within sisal fiber, yielding a potentially cost-effective, durable, and …
Journal of Energy Storage
Thermal conductivity of the shape-stable phase change materials (0.7–0.73 W/m·K) is significantly improved, a latent heat of 138.5 J/g, and the efficiency of energy storage and release is 2.3–3.3 times as good as than …
Shape stabilization, thermal energy storage behavior and thermal …
Phase change materials (PCMs) are novel functional materials that absorb the thermal energy from the environment or release the stored thermal energy by …
Preparation and characterization of paraffin/polyvinyl alcohol phase change fibers for energy storage …
Using paraffin as the phase change material, and polyvinyl alcohol (PVA) as the matrix, ihe energy storage fibers with a phase change material mass fraction 30% were prepared by the wet spinning ...
A comprehensive study of properties of paraffin phase change materials for solar thermal energy storage and thermal management applications ...
Section snippets Phase change materials The paraffin PCMs investigated in this study are listed in Table 1, along with the supplier and their stated purity. The PCMs investigated include three pure alkanes, viz. nonadecane, eicosane and docosane, and three commercial blends of alkanes (C n H 2n+2 where n = 24–36) with different melting …
Ultraflexible, cost-effective and scalable polymer-based phase change …
Phase change materials (PCMs) are such a series of materials that exhibit excellent energy storage capacity and are able to store/release large amounts of latent heat at near-constant temperatures ...
(PDF) Cellulose/Paraffin Composite Fibers for Thermal Energy Storage and Temperature Regulation …
at 345.7℃and 12.62% / min at 331.7℃in N 2 atmosphere. The decomposition rate of the energy. storage and temperature regulation cellulose fibers and the pure cellulose fibers reached a maximum ...
Core-sheath phase change fibers via coaxial wet spinning for solar energy active storage …
Using phase change fibers (PCFs) will help buffer the changes in ambient temperature, improve the utilization of natural energy, and ease the energy crisis. However, the poor solar energy absorption efficiency and leakage of phase change materials from PCFs seriously impaired their performance in practical applications.
Renewable Energy and Environmental Sustainability
G. Dogkas, J. Konstantaras, M.K. Koukou, V.N. Stathopoulos, L. Coelho, A. Rebola, Evaluating a prototype compact thermal energy storage tank using paraffin-based phase change material for domestic hot water production, in …
Experimental Study and Mechanism Analysis of Paraffin/Sisal Composite Phase Change Energy Storage Fiber …
This process resulted in the production of paraffin/sisal fiber composite phase change energy storage fibers, which we will refer to as ''composite phase change fibers'' hereafter. The loading capacity of paraffin (hereafter referred to as ''paraffin loading rate'') was further enhanced by adjusting the mass ratio of paraffin to sisal fibers, sisal fiber length, …
A comprehensive study of properties of paraffin phase change materials for solar thermal energy storage …
Paraffins are useful as phase change materials (PCMs) for thermal energy storage (TES) via their melting transition, T mpt.Paraffins with T mpt between 30 and 60 C have particular utility in improving the efficiency of solar energy capture systems and for thermal buffering of electronics and batteries. ...
Phase-change smart lines based on paraffin-expanded …
In this paper, a series of novel flexible phase-change smart lines were fabricated by double encapsulating paraffin into polypropylene hollow fiber membranes …
Construction and Design of Paraffin/PVDF Hollow Fiber Linear …
Based on the accidental discovery, a linear phase change energy storage material (PCESM) could be designed by encapsulating phase change materials …
Performance of novel thermal energy storage engineered cementitious composites incorporating a paraffin/diatomite composite phase change …
Paraffin/diatomite composite phase change material incorporated cement-based composite for thermal energy storage Appl Energy, 105 ( 2013 ), pp. 229 - 237 View PDF View article View in Scopus Google Scholar
Enhanced thermal energy storage of a paraffin-based phase change material (PCM…
Thermal energy storage performance of a paraffin-based phase change material (PCM) enhanced by nano graphite and nano coconut shell charcoal was investigated. The nano carbon concentration was 0.02, 0.06, and 0.10 wt%, respectively. To understand the ...
Paraffin as Phase Change Material | IntechOpen
The phase change in salt hydrates actually involves the loss of all or plenty of their water, which is roughly equivalent to the thermodynamic process of melting in other materials. MN. nH2O → MN. mH2O +(n − m) H2O MN. n H 2 O → MN. m H 2 O + n − m H 2 O E1. MN. nH2O → MN + nH2O MN. n H 2 O → MN + n H 2 O E2.
Energies | Free Full-Text | Research Progress on the Phase Change Materials for Cold Thermal Energy Storage …
Thermal energy storage based on phase change materials (PCMs) can improve the efficiency of energy utilization by eliminating the mismatch between energy supply and demand. It has become a hot research topic in recent years, especially for cold thermal energy storage (CTES), such as free cooling of buildings, food transportation, …
Preparation and Thermal Characterization of Hollow Graphite Fibers/Paraffin Composite Phase Change …
the world [1–7]. Among the renewable energy resources, the thermal energy storage us‐ ing the phase change material (PCM) has been regarded as an ideal stored energy pattern at the moment [8–14]. PCM can not only be applied at buildings with low energy
EXPERIMENTAL RESEARCH ON PARAFFIN-BASED COMPOSITE PHASE CHANGE ENERGY STORAGE …
Experimental research on paraffin-based composite phase change energy storage and (…) 143 2. Materials and methods 2.1 Raw materials 24# paraffin (phase change temperature 23.3 C and phase change enthalpy 203.3 kJ/kg) was purchased from Fushun
Honeycomb carbon fibers strengthened composite phase change materials for superior thermal energy storage …
Phase change materials (PCMs) have shown promising applications for thermal energy storage and management. With the purposes of solving the critical leakage problem and improving the thermal conductive property of paraffin PCM, composite PCMs as-supported by carbon fiber bundles were fabricated by a simple vacuum impregnation.
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