phase change energy storage core

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phase change energy storage core

Environmental-friendly electrospun phase change fiber with …

Phase change material (PCM) has drawn much interest in the field of thermal energy storage (TES) such as waste heat recovery [5], solar energy utilization [6], thermal conserving and insulation buildings [7], electric appliance thermoregulation [8] and thermal comfortable textiles [9, 10], because it can store a large amount of thermal …

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Energy and exergy analysis of a novel dual-source heat

Under the dual-source heating mode, the energy efficiency of the system is increased by 57.5 % compared with the ASHP system, and the volume of phase-change thermal storage can be saved by 21 % compared with sensible thermal storage. Chen et al. [34] studied a SAHP system with phase-change thermal storage, which can alleviate …

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Phase Change Materials Energy Storage Enhancement Schemes …

Utilizing phase change materials (PCMs) is one of the most effective methods of storing thermal energy and is gaining popularity in renewable energy systems. In order to analyze PCM performance, various numerical methods have been deployed to study the transient behaviour during phase changes. PCMs'' low thermal conductivity …

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Paraffin core-polymer shell micro-encapsulated phase change materials ...

Energy storage technology is an important mean to calm down the fluctuation of renewable energy and promote the research of energy storage technology to become a strong backing for the smooth and orderly development of renewable energy. Inorganic hydrated salt phase change materials, as an important material for phase …

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Electrospun polyethylene glycol/cellulose acetate phase change …

The ultrafine phase change fibers (PCFs) with core–sheath structure based on polyethylene glycol/cellulose acetate (PEG/CA) blends were fabricated successfully via coaxial electrospinning for ...

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Electrospun polyethylene glycol/cellulose acetate phase change …

The ultrafine phase change fibers (PCFs) with core–sheath structure based on polyethylene glycol/cellulose acetate (PEG/CA) blends were fabricated successfully via coaxial electrospinning for thermal energy storage. ... As renewable and clean energy storage materials, phase change fibers have been researched and …

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Phase Change Composite with Core–Shell Structure for …

Based on this, a combined form of difunctional phase change composites (PCCs) integrated with phase change materials (PCMs) and photothermal conversion …

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Development of poly(ethylene glycol)/silica phase-change microcapsules ...

The phase change behavior, thermal energy-storage/release performance and phase change reliability of microcapsule samples were analyzed by a Mettler differential scanning calorimeter (DSC ...

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Preparation and properties of Al/Al2O3 core-shell …

However, it is general intermittent in the thermal energy supply and demand for industrial heat. To solve the problem of discontinuous thermal energy supply and demand, latent heat storage (LHS) using phase change materials (PCMs) has been widely studied in thermal energy storage systems for industrial waste-heat recovery [4], …

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Emerging phase change cold storage technology for fresh …

Phase change material is not only the core of the cold storage box, but also the only cold energy source in the ''last mile'' of the cold chain transportation, its dosage is small, and if its performance is poor, it will lead to the previous cold chain process is ineffective, so the performance of the phase change material is particularly ...

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Micro

An overview of recent literature on the micro- and nano-encapsulation of metallic phase-change materials (PCMs) is presented in this review to facilitate an understanding of the basic knowledge, selection criteria, and classification of commonly used PCMs for thermal energy storage (TES). Metals and alloys w Recent Review Articles

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Journal of Energy Storage

1. Introduction. In recent years, with the acceleration of energy consumption and the increasingly serious environmental problems, the effective storage of thermal energy need to be urgently addressed [1], [2], [3].Phase change materials (PCM) are regarded as an attractive energy-storing material, which perform well on thermal …

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Preparation and characterization of polyurea microencapsulated phase ...

1. Introduction. Microencapsulation is a widely accepted technique, and phase change materials (PCMs) have been used in energy storage field [1].During the phase change process, PCMs can absorb, store and release the latent heat at their melting points with the change of ambient temperature [2].Although very high latent heat can be …

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Fabrication and characterization of a novel polyurethane ...

Fabrication and characterization of a novel polyurethane microencapsulated phase change material for thermal energy storage. ... And the experimental results indicate that the obtained PU-based MEPCMs have high latent heat storage capacity. Specially, when the core/shell mass ratio is 3:1, the melting …

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Novel core/void/shell composite phase change materials for …

However, these noble metal-based composites are not suitable for phase change thermal energy storage applications because noble metals generally have the characteristics of relatively high phase change temperature (e.g. Pt: 1768 °C, Au: 1064 °C), low thermal energy storage capacity and high cost.

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Core-shell-like structured graphene aerogel ...

Phase change materials (PCMs), as an effective thermal energy storage technology, provide a viable approach to harness solar heat, a green energy source, and optimize energy consumption in buildings.

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A comprehensive review of phase change film for energy storage: …

Phase change film (PCF) has been extensively studied as a novel application form of energy storage phase change material (PCM). The emergence of …

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the Phase Change Energy Storage

Abstract: Phase change energy storage is a new type of energy storage technology that can improve energy utilization and achieve high efficiency and energy …

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Journal of Energy Storage

In winter, to meet the demand for daytime heating, heat load was 80 W · m − 2, the total heat storage capacity Q n was 2880 kJ.. For the latent heat of the phase change, 243.5 kJ · k g − 1 and the density of about 770 kg · m − 3, the mass M n was 11.8 kg and volume V n was 20 m 3 of the heat storage phase change material required.. …

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Core-sheath phase change fibers via coaxial wet spinning for …

Thermal energy storage property. Fig. 4 e–f illustrate that the melting phase change temperature (T onset, T m) of PCFs is similar to the crystalline phase change temperature (T onset, T c), and the peak types of the warming melt and the cooling crystal are also very

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Phase Change Energy Storage Elastic Fiber: A Simple Route to …

Moreover, the HEO/TPU fiber has an elongation at break of 354.8% when the phase change enthalpy is as high as 177.8 J/g and the phase change enthalpy is still 174.5 J/g after fifty cycles. After ten tensile recovery cycles, the elastic recovery rate of HEO/TPU fiber was only 71.3%. When the HEO in the fiber was liquid state, the elastic ...

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A comprehensive review on phase change materials for heat …

Thermal energy storage (TES) using PCMs (phase change materials) provide a new direction to renewable energy harvesting technologies, particularly, for the …

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Integrating thermal energy storage and microwave absorption in …

Developing advanced nanocomposite integrating solar-driven thermal energy storage and thermal management functional microwave absorption can facilitate …

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A comprehensive review on phase change materials for heat storage …

Thermal energy storage (TES) using PCMs (phase change materials) provide a new direction to renewable energy harvesting technologies, particularly, for the continuous operation of the solar-biomass thermal energy systems. ... The SEM analysis showed that the general size of nanocapsules was about 100 nm and encapsulation of …

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Phase change material-based thermal energy …

Phase change material (PCM)-based thermal energy storage significantly affects emerging applications, with recent advancements in enhancing heat capacity and cooling power. This perspective by Yang et al. discusses …

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Preparation of multifunctional phase change ...

A novel type of multifunctional microencapsulated phase change materials (MPCMs) with BaCO 3 as shell and binary phase change materials (PCMs) as core was prepared based on self-assembly method. In addition to their original thermal storage properties, MPCMs are endowed with the ability to shield against ionizing radiation by the …

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Review on electrospun ultrafine phase change fibers (PCFs) for …

Review on thermal energy storage with phase change: materials, heat transfer analysis and applications. Appl Therm Eng, 23 (3) (2003), pp. 251-283. ... Fabrication of nanofibers with phase-change core and hydrophobic shell via coaxial electrospinning using nontoxic solvent. J Mater Sci, 50 (17) (2015), pp. 5729-5738.

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Fabrication of multifunctional microcapsules containing n-eicosane core …

In this study, a novel type of multifunctional microcapsules based on an n-eicosane phase change material (PCM) core and a ZnO shell were designed not only for latent heat storage but also for photocatalytic and antibacterial activities.A series of microcapsule samples were synthesized through an in-situ precipitation reaction of …

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Phase Change Energy Storage Material with …

The "thiol–ene" cross-linked polymer network provided shape stability as a support material. 1-Octadectanethiol (ODT) and beeswax (BW) were encapsulated in the cross-linked polymer network …

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Preparation and thermal characterization of n-octadecane ...

The thermal efficiency of the phase-change nanocapsules is related to the shell-core ratio. The thermal energy-storage capability is used to justify whether the PCM coated inside the nanocapsules can be normally melted and crystallized. The E en, E es, and C es were calculated according to Eqs.

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Microencapsulated phase change materials with TiO2-doped …

Microencapsulated phase change materials with thermal energy storage and UV-shielding functions were successfully prepared by the method of suspension-like polymerization. The bifunctional microcapsules consist of n-octadecane as core material and PMMA as shell, using TiO 2 nanoparticles as inorganic UV absorber.

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A review of eutectic salts as phase change energy storage …

Phase change materials (PCMs) constitute the core of latent thermal energy storage, and the nature of PCMs directly determines the energy storage efficiency and engineering applications of LHS. Fig. 1 shows the commonly available PCMs, namely, solid–liquid, solid–gas, solid–solid, and liquid–gas. Solid–liquid PCMs offer the widest ...

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Enhanced thermal conductivity of microencapsulated phase change ...

Large energy storage capacity and high thermal charging/discharging rate are crucial for microencapsulated phase change materials (MEPCM) in thermal energy storage application. The microcapsules with dodecanol core and melamine-formaldehyde (MF) resin shell modified by graphene oxide (GO) and carbon nanotube (CNT) hybrid …

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Preparation and application of high-temperature composite phase change ...

The study of PCMs and phase change energy storage technology (PCEST) is a cutting-edge field for efficient energy storage/release and has unique application characteristics in green and low-carbon development, as well as effective resource recycling. ... In addition, the phase change of the core material will not cause …

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Core–shell-like structured graphene aerogel encapsulating paraffin ...

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 designed and prepared through a modified hydrothermal method. Graphene oxide sheets were reduced an ... The resulting core–shell-like ...

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Multi-field driven thermochromic films with phase change energy storage ...

Phase change energy storage materials are often prepared by microcapsule encapsulation method, and the prepared phase change energy storage microcapsules (PCESM) can play a protective role for the core material, while the shell material always remains as a solid state [[29], [30], [31], [32]].

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Flexible phase change materials for thermal energy storage

1. Introduction. Phase change materials (PCMs) have attracted tremendous attention in the field of thermal energy storage owing to the large energy storage density when going through the isothermal phase transition process, and the functional PCMs have been deeply explored for the applications of solar/electro-thermal …

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Determining influences of SiO2 encapsulation on thermal energy storage ...

1. Introduction. Thermal energy storage (TES) systems readily offer solutions to our urgent energy problems. Phase change materials (PCMs) are the energy storage media in latent heat storage techniques (LHST) used for TES systems [1].PCMs can store large amounts of heat during their phase changes and thus meet energy …

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Flexible phase change materials for thermal energy storage

Phase change materials (PCMs) have been extensively explored for latent heat thermal energy storage in advanced energy-efficient systems. Flexible PCMs are an emerging class of materials that can withstand certain deformation and are capable of making compact contact with objects, thus offering substantial potential in a wide range …

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Solid-solid phase change fibers with enhanced energy storage …

S-S phase change fibers with enhanced heat energy storage density have been successfully fabricated from coaxial wet spinning and subsequent …

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