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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.
Recently Hong and Xin-shi have employed a compound phase change material, which consists of paraffin as a dispersed phase change material and a high density polyethylene (HDPE) as a supporting material. This new generation phase change material is very suitable for application in direct contact heat exchangers.
A solid–solid phase change method of heat storage can be a good replacement for the solid–liquid phase change in some applications. They can be applied in a direct contact heat exchanger, eliminating the need of an expensive heat exchanger to contain them.
The numerical solution of the phase change problem having a constant heat flux boundary (q ″ = constant) as a function of time when the boundary superheat reaches Tw − Tm = 10 K forms the upper limit of the shaded bands.
In conventional PCM cooling, the melted liquid will accumulate between the heat source and solid PCM. A 1D finite element method (FEM) COMSOL phase change model (heat transfer in solids and fluids) can accurately simulate such cases. The geometry of the model can be found in Supplementary Fig. 1.
First, most thermal management and energy storage applications are limited by the discharge process (melting), with the charging process (solidification) occurring on longer timescales.
The objective of this work is to investigate the solidification mechanism of …
5 · A schematic representation of the synthesis and properties of antimicrobial phase change polyurethane. Abstract In this study, we aim to develop a novel polyurethane (PUR) …
As energy availability and demand often do not match, thermal energy storage plays a crucial role to take advantage of solar radiation in buildings: in particular, latent heat …
The extreme reduction of capsule size increases the thermal resistance because of the high contact rate of the capsules . Another notable factor is the shell-to-core ratio. ... Sharma, A.; Tyagi, V.V.; Chen, C.R.; …
Intelligent phase change materials for long-duration thermal energy storage Peng Wang,1 Xuemei Diao,2 and Xiao Chen2,* Conventional phase change materials struggle with long-duration …
Solar-thermal energy storage within phase change materials (PCMs) can overcome solar radiation intermittency to enable continuous operation of many important heating-related processes.
Solar-thermal energy storage within phase change materials (PCMs) can overcome solar radiation intermittency to enable continuous operation of many important …
Phase change material (PCM)-based thermal energy storage significantly affects emerging applications, with recent advancements in enhancing heat capacity and …
Thermal energy storage can shift electric load for building space conditioning 1,2,3,4, extend the capacity of solar-thermal power plants 5,6, enable pumped-heat grid …
The global energy transition requires new technologies for efficiently managing and storing renewable energy. In the early 20th century, Stanford Olshansky discovered the …
Phase change energy storage plays an important role in the green, efficient, and sustainable use of energy. Solar energy is stored by phase change materials to realize the …
Efficient storage of thermal energy can be greatly enhanced by the use of phase change materials (PCMs). The selection or development of a useful PCM requires careful …
3 · Phase change materials (PCMs) with remarkable latent heat storage/release capacity have demonstrated prominent advantages in energy conservation and efficient thermal …
Thermal storage is very relevant for technologies that make thermal use of solar energy, as well as energy savings in buildings. Phase change materials (PCMs) are positioned …
3 · Phase change materials (PCMs) with remarkable latent heat storage/release …
Phase change materials (PCMs) having a large latent heat during solid-liquid phase transition are promising for thermal energy storage applications. However, the relatively …
Various phase change materials (PCMs) for direct contact systems are analyzed, and the study of PCM melting crystallization behavior, heat transfer coefficients and …
Various phase change materials (PCMs) for direct contact systems are …
Phase change material (PCM)-based thermal energy storage significantly affects emerging applications, with recent advancements in …
Thermal energy storage can be categorized into different forms, including sensible heat energy storage, latent heat energy storage, thermochemical energy storage, and …
Phase change heat storage presents a promising solution to address challenges related to new energy intermittency and waste heat recovery. However, for it to function as an …
5 · A schematic representation of the synthesis and properties of antimicrobial phase change polyurethane. Abstract In this study, we aim to develop a novel polyurethane (PUR) with phase changeability and …
Phase change materials show promise to address challenges in thermal energy storage and thermal management. Yet, their energy density and power density decrease as …
A solid–solid phase change method of heat storage can be a good replacement for the solid–liquid phase change in some applications. They can be applied in a direct contact …
A solid–solid phase change method of heat storage can be a good …
Energy Storage is a new journal for innovative energy storage research, covering ranging storage methods and their integration with conventional & renewable systems. …
The objective of this work is to investigate the solidification mechanism of phase change materials (PCM) for heat discharging in a direct-contact thermal energy storage (TES) …