Solidification & Melting (PCM) CFD Simulation Training Package
Solidification and Melting (PCM) CFD Simulation Training Package by ANSYS Fluent
Due to the fact that the nature of the Phase Change Materials (PCM) of the present model is based on the phase change between solid and liquid phases, solidification and melting model has been used for the simulation. These phase change materials have different melting or freezing temperatures. Therefore PCM is used in heating and cooling systems; For example, these materials receive ambient heat on a hot day in the form of latent heat and melt. Then, in the cool air of the night, return the heat to the environment again, by changing the phase and solidification process. PCMs are substances with inorganic or organic compounds that can absorb and store a large amount of latent heat energy.
Thermal energy storage in these materials is obtained during the process of the phase change (solid phase to liquid) so that when the phase changes from solid to liquid, it absorbs heat from the environment. When the liquid-to-solid phase change happens, it returns heat to the environment. Of course, latent heat in phase change materials is obtained from the three solid-solid, solid-liquid and solid-gas phase modes, but since in solid-gas state, much heat or pressure is required and in the solid-solid state, the process is very slow, so most of the phase change materials are in the solid-liquid state.
These PCMs have a variety of melting or solidification temperatures and are therefore used in cooling and heating systems; for example, these materials absorb the solar heat on hot days. The latent heat is absorbed and then returned to the environment again in the cool night, by the phase changing and the solidification process. The following figure shows a schematic of how the PCM works.
Thermal energy storage in PCM is obtained during the phase change process. So that during the phase change from solid to liquid, it absorbs heat from the environment. Also, during liquid-to-solid phase change, returns heat to the environment. PCMs have a variety of melting (Liquidus) or freezing (solidus) temperatures and therefore used in cooling and heating systems; These materials receive solar energy in the form of latent heat and melt in warm days. Then, return the heat to the environment again in the cool night, by changing the phase and solidification and melting process.
All files, including Geometry, Mesh, Case & Data, are available in Simulation File. By the way, Training File presents how to solve the problem and extract all desired results.