SOLID / LIQUID PHASE CHANGE MATERIAL THERMAL ENERGY STORAGE DEVICE COMPRISING A CONDENSER

摘要

The invention relates to a thermal energy storage device comprising a tank (1), at least one phase / phase change material (MCP) (2) two-phase solid / liquid contained in the tank (1) and an energy exchanger. heat transfer fluid comprising at least one tube (3) in which is capable of circulating a heat transfer fluid configured to bring and / or recover thermal energy to the MCP (2), the tube (3) being at least partially immersed in the MCP (2) and comprising a gaseous canopy (4) of inert gas comprising a part arranged in the tank (1) above and in contact with at least one MCP (2) characterized in that it comprises a means of separation arranged in the gaseous sky (4) outside of a maximum area of occupation of the MCP (2) in its most expanded phase of the two solid-liquid phases, the separation means being configured to separate from the gaseous sky (4) a fraction of at least one solid / liquid MCP (2) evaporating during pH changes ase. The field of the invention relates to Thermal Storage Systems (SST) by Phase Change Materials (MCP). The invention relates more particularly to the integration of a thermal storage system in concentrated solar power plants, for example for power plants with direct steam generation, or even the recovery of waste heat from industries.