The materials used for latent heat storage are called phase change materials [37]. The development of phase change materials is one of the active areas in efficient thermal energy storage, and it has great prospects in applications such as smart thermal grid38].

Molten salt phase change materials (MSPCMs) provide strong support for the long-term and stable operation of new energy systems. This study focuses on LiNO 3 (high latent heat, low melting temperature), NaNO 3 (an important component in solar salts), and binary eutectic nitrate (LiNaNO 3).).

This paper provides a review of the solid–liquid phase change materials (PCMs) for latent heat thermal energy storage (LHTES). The commonly used

Thermal energy storage by solid-liquid phase change is one of the main energy storage methods, and metal-based phase change material (PCM) have attracted more and more attention in recent years due to their high energy storage density and high thermal conductivity, showing unique advantages in thermal energy storage system and

Phase change materials (PCMs), are a group of specific substances, which can store and release a lot of energy once undergoing phase change procedure [8]. Among the various TES types, LHS used PCMs, are the high competitive form due to their advantages such as low cost, large energy storage density, chemical stability, and non

Phase change materials (PCMs) having a large latent heat during solid-liquid phase transition are promising for thermal energy storage applications. However,

A phase change material (PCMs) is a substance that undergoes a phase transition (change in its physical state) from a solid to a liquid or from a liquid to a solid at a specific temperature, often

Latent heat storage is based on the heat absorption or release when a storage material undergoes a phase change from solid to liquid, liquid to gas, solid to gas, or solid to gas, and vice versa. The most commonly used latent heat storage systems undergo solid-liquid phase transitions due to large heat storage density and small

Phase change materials (PCMs) can absorb or release heat for thermal energy storage and utilization, especially the multi-co-production energy storage system [7]. The thermal performance of PCMs depends on the high latent heat, wide phase change temperature range, high thermal stability and high economic performance.

This chapter identifies eight material-related challenges that currently present barriers in guaranteeing robust operation of existing PCM and in developing novel ones. The

Photo-thermal conversion phase-change composite energy storage materials (PTCPCESMs) are widely used in various industries because of their high thermal conductivity, high photo-thermal conversion efficiency, high latent heat storage capacity, stable

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

s: Using phase change materials (PCMs) to store and release latent heat is essential to develop the renewable energy, improve the energy efficiency and relieve the conflict of energy between supply and demand. The aim of this study is to prepare novel inorganic PCMs for thermal energy storage with phase change temperatures at room

Thermal energy storage (TES) using phase change materials (PCM) have been a key area of research in the last three decades and more, and became an important aspect after the 1973–74 energy crisis. Depletion of the fossil fuels and increase in the energy demand has increased the gap between energy demand and its supply.

Benefiting from high fusion enthalpy, narrow storage temperature ranges, and relatively low expansion coefficients, solid–liquid phase change materials (PCMs) have been

Currently, it is mainly solid–liquid PCMs that are studied and used in energy storage applications because the solid–solid PCMs generally show smaller latent heat of phase transition. However, the solid–solid PCMs have the major advantages of a smaller volume change during the phase change than solid–liquid PCMS and they

Nanographite, a fine black powder substance with high thermal conductivity, is produced by Beijing Zhongye New Materials Technology Co., Ltd. The macroscopic appearance of nanographite is depicted in Fig. 1 (a), while its microscopic structure and elemental composition are illustrated in Fig. 1 (b). It can be seen that the micro

Solid-liquid phase change materials have shown a broader application prospect in energy storage systems because of their advantages, such as high energy storage density, small volume change rate, and expansive phase change temperature range [[18], [19

Phase change energy storage materials have been recognized as potential energy-saving materials for balancing cooling and heating demands in buildings. However, individual phase change materials (PCM) with single phase change temperature cannot be adapted to different temperature requirements. To this end, the concept of

PCMs simultaneously change the phase from solid to liquid (energy absorbing) and liquid to solid (energy releasing). Therefore, a PCM should be thermally stable even after few cycles of operation. However, some researchers [23], [96], [113], [211] reported that most of the PCMs are thermally not stable after few cycles of operation.

Organic and inorganic chemicals have been used as phase change materials (PCMs) in latent heat storage applications. The ability of PCMs to change phase at constant temperature is convenient for heat storage and recovery [7], [8]. Thanks to heat storage of PCM, energy savings in heating and cooling can be achieved with high

Phase change materials (PCMs) based thermal energy storage (TES) has proved to have great potential in various energy-related applications. The high energy storage density enables TES to eliminate

They exhibit the advantages of both solid-liquid and solid-solid phase change energy storage materials, while overcoming the disadvantages such as low latent heat and ease of leakage. Three types of SSPCMs have been successfully developed in literature [ [17], [18], [19] ]: microencapsulated PCMs, polymer-based PCMs and porous

When choosing a phase change energy storage material, its thermal properties, such as working temperature, heat capacity, thermal conductivity and thermal reliability, are often valued. a small amount of covering agent was sprinkled on the surface of the alloy liquid, and the alloy melt was stirred slowly with a stirring rod at a uniform

Abstract. Various types of solid–liquid phase change materials (PCMs) have been reviewed for thermal energy storage applications. The review has shown that organic solid–liquid PCMs have much more advantages and capabilities than inorganic PCMs but do possess low thermal conductivity and density as well as being flammable.

Solid-solid phase change has the advantages of anti-leakage performance compared with solid-liquid phase change, so it has received more attention in building energy conservation [130]. Tan et al. prepared form-stable PCMs utilizing PEG spherulite crystals as templates, and the cross-linked polymer as a supporting material.

PCM can absorb pavement heat by means of phase transition from solid- to liquid-state, Study on the influence of thermal characteristics of hyperbranched polyurethane phase change materials for energy storage J.

Phase change materials (PCMs) have been extensively utilized in latent thermal energy storage (TES) and thermal management systems to bridge the gap between thermal energy supply and demand in

To date, some scholars have utilized phase change materials (PCMs) to cool or adjust the ambient temperature inside tunnels and other underground structures. Yu et al. [14] discovered that PCM structures installed inside a tunnel could reduce the air temperature within the tunnel and remove 56.9% of the heat emitted by trains.. Xu et al.

In addition, due to the capillary action caused by the cooperation between MPC and cellulose, the leakage of phase change materials during solid-liquid phase change is effectively prevented. In addition, in the ultraviolet–visible range (200 nm–800 nm), the absorbance of the composite material can reach 1.28 L/(g cm), and the

Advanced Engineering Materials, part of the prestigious Advanced portfolio, is a comprehensive materials journal focusing on the latest breakthroughs in the field. This paper provides a review of the solid–liquid phase change materials (PCMs) for latent heat thermal energy storage (LHTES).

Abstract. Phase change materials (PCMs) have been extensively characterized as promising energy materials for thermal energy storage and thermal management to address the mismatch between energy

Section snippets Phase change materials. The PCMs are latent heat storage materials that have high heat of fusion, high thermal energy storage densities compared to sensible heat storage materials and absorb and release heat at a constant temperature when undergoing a phase change process (e.g. solid–liquid).

Benefiting from high thermal storage density, wide temperature regulation range, operational simplicity, and economic feasibility, latent heat-based thermal energy storage (TES) is comparatively accepted as a cutting-edge TES concept, especially solid-liquid phase

Harnessing the potential of phase change materials can revolutionise thermal energy storage, addressing the discrepancy between energy generation and consumption. Phase change materials are renowned for their ability to absorb and release substantial heat during phase transformations and have proven invaluable in compact

According to the phase transition forms, PCMs can be divided into solid-solid, solid-liquid, solid-gas, and liquid-gas PCMs. Solid-liquid phase change materials have shown a broader application prospect in energy storage systems because of their advantages, such as high energy storage density, small volume change rate, and

This review focuses on three key aspects of polymer utilization in phase change energy storage: (1) Polymers as direct thermal storage materials, serving as

The Steffen constant (Ste. = C l Δ T L, where C l refers to the heat capacity of the liquid phase, ΔT refers to the temperature difference between the heat source and the melting point of PCMs, and L refers to the latent heat) determines the heat-transfer mode at the solid–liquid interface: When Ste. < 0.1, conduction is the main heat