enhanced thermal conductivity of phase change energy storage materials
Enlaces relacionados
Phase change material-based thermal energy storage
Phase change materials (PCMs) having a large latent heat during solid-liquid phase transition are promising for thermal energy storage applications. However, the relatively low thermal conductivity of the majority of promising PCMs (<10 W/ (m ⋅ K)) limits the power density and overall storage efficiency. Developing pure or composite PCMs …
Sodium acetate trihydrate-based composite phase change material …
Sodium acetate trihydrate (CH 3 COONa·3H 2 O, SAT), as the medium-low temperature phase change material (PCM), has been broadly utilized in thermal energy storage system. The specific objective of this study was to develop a new SAT-based composite PCM (CPCM) in order to restrain the supercooling and phase segregation of …
Enhanced thermal conductivity of palmitic acid/mullite phase change composite with graphite powder for thermal energy storage …
To improve the energy storage efficiency of phase change composites, porous mullite was used to encapsulate the PCM-palmitic acid and graphite powder was applied to enhance the overall thermal conductivity. During the experimental process, a series of palmitic ...
Largely enhanced thermal conductivity of poly (ethylene …
One of the most promising ways to convert, store and utilize solar energy and thermal energy is developing phase change materials (PCMs) which can provide a high energy storage density, absorb and release thermal energy at a constant temperature during phase transitions in the form of melting or solidification [3], [6], [7], [8], [9].
Thermal Properties and Enhanced Thermal Conductivity of Capric Acid/Diatomite/Carbon Nanotube Composites as Form-Stable Phase Change Materials …
The capric acid (CA)/diatomite (DT)/carbon nanotube (CNT) ternary system was investigated to develop a shape-stabilized composite phase change material for thermal energy storage via the direct impregnation method. DT was used as the supporting material to absorb CA and prevent its leakage. It was found that good form stability could be …
Nanocomposite phase change materials for high-performance thermal …
Nano-enhanced phase change material, Latent heat thermal energy storage, Thermal conductivity, Latent heat, Phase change material An overview of the preparation methods used for NEPCMs, the impact of nanoparticles on the thermophysical properties, stability of NEPCMs, the hybrid heat transfer enhancement techniques using …
Advances in thermal energy storage: Fundamentals and …
Sensible heat storage (SHS) involves heating a solid or liquid to store thermal energy, considering specific heat and temperature variations during phase change processes. Water is commonly used in SHS due to its abundance and high specific heat, while other substances like oils, molten salts, and liquid metals are employed at …
Enhanced thermal conductivity of polyurethane/wood powder composite phase change materials …
To improve the use efficiency and broaden the application fields of PCMs in solar thermal energy storage, the poly (ethylene glycol) (PEG) based polyurethane (PU) /wood powder (WP)/graphene oxide (GO) composite …
Thermal conductivity and energy storage capacity enhancement and bottleneck of shape-stabilized phase change …
A systematic, carbon-based composite phase change materials with substantial increase of the thermal conductivity and energy storage density was assembled by encapsulating PEG into graphene foams (GF), CNTs and hierarchical porous materials derived from ...
Graphene Aerogels Enhanced Phase Change Materials prepared …
The synergistic effect of rGO network and Ag nanoparticles also benefits the thermal conductivity of nano-enhanced phase change materials (NePCMs). Previous article in issue; Next article in issue; Keywords. ... Application of phase change materials for thermal energy storage in concentrated solar thermal power plants: a …
Polypyrrole coated carbon nanotube aerogel composite phase change ...
Polypyrrole coated carbon nanotube aerogel composite phase change materials with enhanced thermal conductivity, high solar-/electro- thermal energy conversion and storage. Author ... a platform emerged from 43 °C to 55 °C that represents the latent thermal energy storage in the phase change process (the dotted area of Fig. …
Enhanced thermal conductivity of palmitic acid/copper foam composites with carbon nanotube as thermal energy storage materials …
Enhanced thermal conductivity of palmitic acid/mullite phase change composite with graphite powder for thermal energy storage Renewable Energy, 138 ( 2019 ), pp. 833 - 841 View PDF View article View in Scopus Google Scholar
Silicone rubber/paraffin@silicon dioxide form-stable phase change materials with thermal energy storage and enhanced …
A kind of silicone rubber (SR)/paraffin (Pa)@silicon dioxide (SiO 2) composite form-stable phase change material (PCM) was developed in this paper.Pa@SiO 2 was obtained by choosing Pa as PCM core microencapsulated in SiO 2 shell based on tetraethoxysilane (TEOS) and γ-aminopropyl triethoxysilane (APTES) as precursors, then …
Enhanced thermal conductivity of PEG/diatomite shape-stabilized phase …
Ag nanoparticles (AgNPs) are a promising additive because they can enhance the thermal conductivity of organic phase change materials. In this paper, a series of high thermally-conductive shape-stabilized phase change materials (ss-PCMs) were tailored by blending PEG with AgNP-decorated diatomite. In order t
Flexible composite phase change materials with enhanced thermal ...
The obtained flexible composite PCMs realize an impressive balance among salient shape stability, considerable energy storage density, excellent …
Phase change materials of paraffin in h-BN porous scaffolds with enhanced thermal conductivity and form stability …
1. Introduction Phase change materials (PCMs) play an important role in solar heating systems, thermal management systems and so on because of their high energy storage density and isothermal properties [1], …
Thermal conductivity enhancement of phase change materials for …
Numerical study for enhancing the thermal conductivity of phase change material (PCM) storage using high thermal conductivity porous matrix
Thermal conductivity enhancement of phase change material with charged nanoparticle: A molecular dynamics simulation …
Latent heat storage with phase change material (PCM) can regulate energy supply and demand and solve the intermittent problem of solar energy, which has been widely investigated [3, 4]. PCMs are the core of the latent heat storage technology, which can be classified as organic and inorganic phase change materials [ 5 ] …
Progress of research on phase change energy storage materials in their thermal conductivity …
1.1. Research on the thermal conductivity of PCM in recent years Thermal conductivity is a key parameter for phase change energy storage systems to measure how fast or slow the energy is transferred. Many researchers in China and abroad have done a lot of ...
Enhanced thermal conductivity of PEG/diatomite shape …
Ag nanoparticles (AgNPs) are a promising additive because they can enhance the thermal conductivity of organic phase change materials. In this paper, a series of high thermally-conductive …
Nanocomposite phase change materials for high-performance …
In this review, we summarize systematically the effects of carbon-based nano-additives on the important thermophysical properties of nanocomposite phase …
Progress of research on phase change energy storage materials in …
In this paper, the thermal conductivity mechanism of PCM (basic thermal conductivity, phonon thermal conductivity and channel thermal conductivity) and …
Enhanced thermal conductivity and photo-to-thermal …
Among the TES systems, the thermal storage with phase change materials was proved to be a feasible and valid way as it can store or release a large amount of heat energy at a nearly invariable temperature during the process of phase change [17], [18], [19], [20].
Unsaturated polyester resin supported form-stable phase change ...
Solar energy absorption, conversion, transportation and storage are crucial for high-efficiency solar thermal utilization. It is positive and promising to develop novel phase change materials (PCMs) with good shape stability, excellent photo-absorption and thermal-physical properties in the practical solar thermal application.
Nanocomposite phase change materials for high-performance thermal energy storage…
Nano-enhanced phase change material, Latent heat thermal energy storage, Thermal conductivity, Latent heat, Phase change material An overview of the preparation methods used for NEPCMs, the impact of nanoparticles on the thermophysical properties, stability of NEPCMs, the hybrid heat transfer enhancement techniques using …
An ice-templated assembly strategy to construct graphene oxide/boron nitride hybrid porous scaffolds in phase change materials with enhanced ...
Latent heat energy storage and release media of organic phase change materials (PCMs) are promising to utilize thermal energy coming from solar radiation for effective thermal management. However, the inherently low thermal conductivity and poor photoabsorption of organic PCMs lead to slow thermal charging/discharging rates, hindering the direct …
Enhanced thermal conductivity of waste sawdust-based composite phase change materials with expanded graphite for thermal energy storage …
Background With the current rapid economic growth, demands for energy are progressively increasing. Energy shortages have attracted significant attention due to the shrinking availability of non-renewable resources. Therefore, thermal energy storage is one of the solutions that lead to saving of fossil fuels and make systems more cost …
Enhanced thermal conductivity of phase change materials with …
For thermophysical energy storage with phase change materials (PCMs), the power capacity is often limited by the low PCM thermal conductivity (κ PCM).Though dispersing high-thermal conductivity nanotubes and graphene flakes increases κ PCM, the enhancement is limited by interface thermal resistance between the nanofillers, among …
Thermal conductivity enhancement on phase change materials for …
Due to its high energy density, high temperature and strong stability of energy output, phase change material (PCM) has been widely used in thermal energy …
Phase change material-based thermal energy storage
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 …
Hierarchical graphene foam-based phase change materials with enhanced thermal conductivity and shape stability for efficient solar-to-thermal ...
Recently, graphene foam (GF) with a three-dimensional (3D) interconnected network produced by template-directed chemical vapor deposition (CVD) has been used to prepare composite phase-change materials (PCMs) with enhanced thermal conductivity. However, the pore size of GF is as large as hundreds of micrometers, …
Recent Advances in Nanoencapsulated and Nano-Enhanced Phase …
In the realm of thermal energy storage, significant progress has been achieved in the creation of nanoencapsulated and nano-enhanced phase-change …
Experimental determination of temperature-dependent thermal ...
Thermal conductivity of eicosane-based phase change materials was enhanced by suspending highly-conductive silver nanoparticles. Three batches of solid eicosane-silver samples with mass fractions (0, 1, 2, 3.5, 5, 6.5, 8 and 10 wt%) of nanoparticles were obtained under three different solidification routes: ice-water bath, …
High-enthalpy aramid nanofiber aerogel-based composite phase change ...
1. Introduction. With the increasingly serious climate change and energy shortages, renewable energy harvesting, storage, conversion, regulation, and utilization have attracted tremendous attention [1, 2].Thermal energy storage (TES) is one of the key techniques to improve the thermal energy utilization efficiency by significantly reducing …
Enhanced thermal energy storage performance of molten salt …
Chloride molten salt is the most promising thermal energy storage materials for the next generation concentrated solar power (CSP) plants. In this work, to enhance the thermal performance of KNaCl 2 molten salts, composited thermal energy storage (CTES) materials based on amorphous SiO 2 nanoparticles and KNaCl 2 were …
Largely enhanced thermal conductivity of poly (ethylene glycol)/boron nitride composite phase change materials for solar-thermal-electric energy ...
Phase change materials (PCMs) with high thermal conductivity and efficient solar energy conversion have recently attracted much attention. However, a facile strategy to enhance thermal conductivity and realize energy conversion and storage is still eagerly desired.
Thermal conductivity enhancement of nanostructure-based colloidal suspensions utilized as phase change materials for thermal energy storage…
A review of studies focused on enhancing the thermal conductivity of phase change materials (PCM) for thermal energy storage upon introduction of nanostructures is presented. These emerging materials have only been studied since 2005 and represent a clear departure from previous/existing practices of utilizing fixed, …
Thermal energy storage properties, thermal conductivity, chemical/and thermal reliability of three different organic phase change materials …
Thermal energy storage properties, thermal conductivity, chemical/and thermal reliability of three different organic phase change materials doped with hexagonal boron nitride Author links open overlay panel Mohammed Ouikhalfan a, Ahmet Sarı b c, Gökhan Hekimoğlu b, Osman Gencel d, V.V. Tyagi e
Enhanced thermal conductivity of form-stable phase change …
Abstract. Inorganic hydrated salt phase change materials (PCM) play a vital role in field of thermal energy storage and temperature control because of their …
Nano-enhanced phase change materials for thermal energy storage…
In pursuit of energy conservation, diverse strategies for ventilation and warming have been employed. Notably, thermal energy storage (TES) has found widespread application in various forms and applications owing to its inherent benefits in harnessing solar energy to minimize energy consumption and ensure ecological …
Enhanced thermal conductivity of PEG/diatomite shape-stabilized phase change materials with Ag nanoparticles for thermal energy storage …
Ag nanoparticles (AgNPs) are a promising additive because they can enhance the thermal conductivity of organic phase change materials. In this paper, a series of high thermally-conductive shape-stabilized phase change materials (ss-PCMs) were tailored by blending PEG with AgNP-decorated diatomite. In order t