Fluent phase change energy storage

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.

Is a cylindrical cavity a phase change material for thermal energy storage?

Preprints and early-stage research may not have been peer reviewed yet. This paper presents a study on the design optimization of Thermal Energy Storage (TES) using a cylindrical cavity and Gallium as a Phase Change Material (PCM). The objective is to improve the time span of charging and discharging, as well as minimize heat loss during storage.

How can Ansys Fluent improve the time span of charging and discharging?

The objective is to improve the time span of charging and discharging, as well as minimize heat loss during storage. Five different models with varying geometries and heat source configurations were designed and analyzed using CFD simulation in ANSYS Fluent.

How Ansys Fluent 2022 R1 simulated phase change thermal storage system?

Based on different placement methods of the plate-type phase change unit, different inlet temperatures and phase change temperature differences, and different inlet and outlet directions, the complete charging and discharging process of the packaged phase change thermal storage system was simulated using ANSYS FLUENT 2022 R1 software.

What factors affect the phase transformation process based on fluent?

In the numerical simulations or experiments based on FLUENT, some studies ignore the special situations in the phase transformation process, such as natural convection, undercooling, precipitation, external influence, and other practical factors.

How does a phase change energy storage system work?

The heat transfer medium exchanges heat with the PCM through the pipe or vessel wall, causing the PCM to undergo phase change for heat storage or release. Scholars have extensively researched phase change energy storage systems in shell-and-tube configurations.