Fixed phase change energy storage materials

Are phase change materials suitable for 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.

What is thermal management using phase change materials (PCMs)?

Thermal management using phase change materials (PCMs) is a promising solution for cooling and energy storage 7, 8, where the PCM offers the ability to store or release the latent heat of the material.

Why are phase change materials difficult to design?

Phase change materials (PCMs), which are commonly used in thermal energy storage applications, are difficult to design because they require excellent energy density and thermal transport, both of which are difficult to predict from simple physics-based models.

What are the non-equilibrium properties of phase change materials?

Among the various non-equilibrium properties relevant to phase change materials, thermal conductivity and supercooling are the most important. Thermal conductivity determines the thermal energy charge/discharge rate or the power output, in addition to the storage system architecture and boundary conditions.

What is latent heat storage utilizing phase change materials (PCMs)?

Among them, latent heat storage utilizing phase change materials (PCMs) offers advantages such as high energy storage density, a wide range of phase change temperatures, and the ability to maintain a nearly constant operating temperature during the heat storage process. This properties make it an excellent approach for store heat [, , ].

What is the latent heat of phase change in thermal storage fibers?

The highest observed latent heat of phase change in the fiber samples was 137.05 J/g. Feng et al. also utilized coaxial electrospinning to prepare thermal storage fibers, where the shell material was PU and the core material consisted of PEG.