Effects of carbon nanotubes additive on thermal conductivity
Cai Y, Ke H, Dong J, et al. Effects of nano-SiO 2 on morphology, thermal energy storage, thermal stability, and combustion properties of electrospun lauric acid/PET ultrafine composite fibers as form-stable phase change materials. Appl
Graphene Thermal Properties: Applications
We review the thermal properties of graphene, few-layer graphene and graphene nanoribbons, and discuss practical applications of graphene in thermal management and energy
Thermal energy storage and thermal conductivity properties of
Lin, Y., Jia, Y., Alva, G. & Fang, G. Review on thermal conductivity enhancement, thermal properties and applications of phase change materials in thermal
Biomass-based shape-stabilized phase change materials for thermal
Porous biomass materials with nano-confined effect, high specific surface area, strong interface interaction and high thermal conductivity, can fully integrate phase change energy storage with the structure and physical and chemical properties of biomass skeleton, so that the CPCMs have high thermal stability, high thermal conductivity, excellent mechanical stress
A thermal energy storage composite with sensing
Many of the current thermal energy storage (TES) materials have almost no additional functions other than the TES function. Making TES materials electrically respond to temperature change and phase change
N-Octadecane Encapsulated by Assembled
The rapid development of industry has emphasized the importance of phase change materials (PCMs) with a high latent-heat storage capacity and good thermal
Journal of Energy Storage
Thermal energy storage (TES) is essential for solar thermal energy systems [7].Photothermal materials can effectively absorb solar energy and convert it into heat energy [8], which has become a research hotspot.Phase change materials (PCM) with high energy density and heat absorption and release efficiency [9], have been widely used in many fields as
Thermal energy storage and thermal conductivity properties of
Fatty alcohols have been identified as promising organic phase change materials (PCMs) for thermal energy storage, because of their suitable temperature range, nontoxicity
Revolutionizing thermal energy storage: An overview of porous
Thermal energy storage (TES) CNTs also enhanced the diffusion coefficient of lauric acid PCM composites, increasing energy flux and thermal conductivity compared to pure lauric acid at the same temperature. These findings suggest that CNTs can enhance the heat and mass transfer of lauric acid [175].
The investigation of thermal conductivity and energy storage
In this article, we experimentally explored the thermal transport and the heat storage properties of the paraffin-based composites by dispersing MSGFs with high thermal
Nano-engineered pathways for advanced thermal energy storage
In latent heat energy storage systems, a solid-liquid phase transition process can be nano-engineered to improve the latent heat of phase change or increase the heat transfer rate in either state. 78, 79 Material compatibility, thermal stability, and chemical stability of PCM usually determine its life span. 80 Particularly, it is desirable to assure the thermal stability of
Journal of Energy Storage
The thermal conductivity is a crucial parameter for the practical application of composite PCMs in the field of thermal energy storage. To investigate the thermal conductivity of the composite PCMs formed by the combination of kapok fiber aerogel and TD, the thermal conductivity coefficient of the composite material at room temperature (approximately 25 °C)
Effects of various types of graphite on the thermal conductivity
The structure, thermal energy storage properties, and thermal stability of the composite PCM were investigated. Thermal conductivity of the samples in the liquid phase was measured using the transient line source method (KD2Pro). The thermal conductivity was increased by loading xG while energy storage properties were slightly decreased.
Metal Oxide Nanoparticle Dispersed-Polyethylene
Polyethylene glycols as phase change materials (PCMs) have good latent heat storage (LHS) characteristics, but the low thermal conductivity property significantly hinders their usage potential in thermal energy storage
Thermal conductivity enhancement on phase change materials for
The results show that the high thermal conductivity carbon layer on the surface of TiO 2 particles can improve the thermal conductivity of composite PCMs to some extent and
Energy Reports
In order to control the trend of global warming and improve the energy structure, various renewable energy sources have been developed and applied (IPCC AR6).Energy storage systems are often combined with renewable energy power systems such as solar and wind energy (Jordehi et al., 2021, Barnoon, 2021a).Thermal energy storage technologies mainly
Efficient-thermal conductivity, storage and application of bionic
NaCl-MgCl 2-KCl (wt% = 23:14:63) was infiltrated into the bionic SiC skeletons to obtain high-temperature composite thermal storage cells with an axial thermal conductivity of 14.75 W‧m-1 ‧K-1, an effective-thermal-storage-density per production-cost of 86.43 kJ‧CNY-1, and a photo-thermal conversion efficiency of 91.8%. This further demonstrates its great
Preparation of 3D BN-BT/PVDF skeleton structure
As shown in Fig. 1, the 3D BN-BT/ PVDF skeleton structure composites for high thermal conductivity and energy storage is composed of BT/PVDF precursor and 3D BN thermal conductive skeleton. The prepared BT/PVDF precursor was evenly immersed into the 3D BN thermal conductive skeleton for impregnation. After standing for 2 h, it was placed in an
Effects of various carbon nanofillers on the thermal conductivity
As a form of energy, thermal energy is directly usable, and is accompanied with the energy conversion processes of almost all kinds of renewable and sustainable energy sources. Hence, storage of thermal energy is of great significance, which has been realized with both sensible and latent heat of select materials [1]. The utilization of solid
Nanocomposite phase change materials for high-performance thermal
Two-dimensional materials, Latent heat, Thermal conductivity, Thermal energy storage and conversion: The advances, emerging trends and challenges of graphene and 2D materials for high-performance PCMs were summarized. A brief discussion about the challenges and outlooks of 2D materials for reasonable design and construction of high-performance
Form-Stable phase change composites with high thermal conductivity
Thermal energy storage capacity is an important parameter for phase change composites. The thermal energy storage and phase-transition performance of PW/rGCA composites was evaluated, as shown in Fig. 6. Generally, the addition of functional fillers without phase change capability caused the reduction of the phase change enthalpies for
Thermal energy storage in concrete: A comprehensive review on
The high specific heat of concrete is advantageous for thermal energy storage applications, as it allows for effective heat absorption and retention [26, 44, 45]. By understanding and leveraging this property, engineers can design and optimise concrete-based thermal energy storage systems to achieve efficient heat storage and release.
Effects of functionalization on energy storage properties and thermal
However, the poor heat transfer efficiency largely restricts its application in the field of thermal energy storage. To improve the thermal conductivity (TC) of paraffin, numerous methods were proposed and indicated that adding nanofillers with high TC is
Enhanced thermal conductivity and photo-to-thermal
This study devotes to designing a novel fs-PCM composite with enhanced thermal conductivity and photo-to-thermal performance for thermal energy storage. The MnO 2 -decorated diatomite was synthesized by a simple hydrothermal reaction and used as porous support to stabilize lauric acid-stearic acid (LA-SA), and series of novel diatomite-based
Shape stabilization, thermal energy storage behavior and thermal
However, the thermal conductivity of the prepared paraffin/hollow fiber composite was decreased by 55%. Therefore, it is necessary to develop the composites with both high thermal storage and thermal conductivity. The energy charge/discharge rate of PCMs is generally significantly suppressed by the low thermal conductivity of PCMs.
Thermal Conductivity and Stability of
Thermal ice storage has gained a lot of interest due to its ability as cold energy storage. However, low thermal conductivity and high supercooling degree have become major issues during
Energizing the Thermal Conductivity and Optical Performance of
Energizing the Thermal Conductivity and Optical Performance of Salt Hydrate Phase Change Material Using Copper (II) Oxide Nano Additives for Sustainable Thermal Energy Storage Reji Kumar Rajamony 1,2 *, Mahendran Samykano 3 *, Subbarama Kousik Suraparaju 3, A.G.N. Sofiah 1, Satesh Namasivayam 4, K. Rajkumar 5, Kumaran Kadirgama 3 and
Okra functional biomimetic composite phase change materials
The thermal conductivity of h-CPCMs is 30.5 W/(m·K) when the porosity is 76 %, while the thermal conductivity of h-CPCMs decreases to 17.4 W/(m·K) when the porosity is 85 %, which is very understandable because with the increase of the porosity, the skeleton component of h-CPCMs is relatively reduced, and the role of the skeleton is to increase the
Advances in thermal energy storage: Fundamentals and applications
Thermal energy storage (TES) is increasingly important due to the demand-supply challenge caused by the intermittency of renewable energy and waste heat dissipation
Bayesian optimization for effective thermal conductivity
The demand for heating and cooling currently accounts for around 50% of global final energy consumption and more than 40% of energy-related CO2 emissions [1].These numbers are still growing rapidly as a result of economic growth, urbanization, and climate change [[1], [2], [3]] this context, thermal energy storage (TES) is playing an increasingly important
Shape-stabilized, thermally conductive phase-change composites
Phase-change materials (PCMs) with three-dimensional thermally conductive skeletons show promise for thermal energy storage, but they have poor stability. Therefore, based on hydrogen bonding between graphene oxide and polyvinyl alcohol, a shape-stable thermally conductive graphene oxide/graphene nanoplates/polyvinyl alcohol (GO/GNP/PVAs) 3D porous
Composite phase-change materials for photo-thermal conversion
Solar energy is a clean and inexhaustible source of energy, among other advantages. Conversion and storage of the daily solar energy received by the earth can effectively address the energy crisis, environmental pollution and other challenges [4], [5], [6], [7].The conversion and use of energy are subject to spatial and temporal mismatches [8], [9],
Experimental investigation of energy storage properties and thermal
The present experimental work provides a systematic approach to demonstrate the energy storage and thermal conductivity analysis of paraffin wax induced with MXene nanoparticles. This study will be useful in thermal energy storage applications. Therefore, comprehensive investigation should be carried in this area to evaluate its full potential
Thermal energy storage: Challenges and the role of particle
Thermal energy storage (TES) stores energy in the form of heat and cold in media termed TES materials. Although molten salt can be used both as a sensible heat storage medium and heat transfer fluid, low thermal conductivity and low energy storage density are two key disadvantages, which means respectively a limited power density and a
Enhanced thermal conductivity of form-stable phase
Thermal energy storage and thermal conductivity properties of fatty acid/fatty acid-grafted-CNTs and fatty acid/CNTs as novel composite phase change materials
6 FAQs about [Thermal conductivity and energy storage]
Why is thermal energy storage important?
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 applications of TES materials and identifies appropriate TES materials for particular applications.
How to improve thermal conductivity and heat transfer properties?
Several researchers have investigated these FAs and tried to improve their thermal properties, mainly by adding different high conducting fillers, such as graphite, metal foams, CNTs, graphene etc. In most cases, these fillers improved the thermal conductivity and heat transfer property but reduce the heat storage capacity considerably.
Why is thermal conductivity enhancement important for PCM?
Almost all pure PCM have a common shortcoming of low thermal conductivity except for metallic PCM . Hence, thermal conductivity enhancement is one of the main issues for the PCM in the application field of the latent heat storage. Many efforts have been made to improve the thermal-physical properties of PCM.
Can phase change materials be used in thermal energy storage?
Phase change materials (PCM) have been extensively scrutinized for their widely application in thermal energy storage (TES). Paraffin was considered to be one of the most prospective PCMs with perfect properties. However, lower thermal conductivity hinders the further application.
Are fatty alcohols a good thermal energy storage material?
Provided by the Springer Nature SharedIt content-sharing initiative Fatty alcohols have been identified as promising organic phase change materials (PCMs) for thermal energy storage, because of their suitable temperature range, nontoxicity and can be obtained from both natural and synthetic sources.
What factors affect thermal conductivity?
The formation of heat flow network is the key factor for high thermal conductivity in this case. Meanwhile, compared to that of the thermal conductivity, the latent heat capacity, the melting temperature, and the freezing temperature of the composites present negligible change with increasing the concentration of the MSGFs.