Ultra-high temperature thermal energy storage. Part 2: Engineering and operation

Pcm-graphite Composites for High Temperature Thermal Energy Storage

High temperature thermal energy

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A Hybrid Thermal Energy Storage Device , Part 2 : Thermal Performance Figures of Merit

Two figures of merit for hybrid Thermal Energy Storage (TES) units are developed: the volumetric figure of merit, Ṽ, and the temperature control figure of merit, DT̃ . A dimensional analysis shows that these quantities are related to the performance specification of the storage unit and its physical design. A previously benchmarked semi-empirical finite volume model is used to study the characte...

Non-metallic and Structurally Efficient Thermal Energy Storage Composites for Avionics Temperature Control, Part I: Thermal Characterization

A novel multi-functional plate-like lamination that combines a thermal energy storage capability with a structural capability is described. The lamination consists of a paraffin impregnated porous graphitic core (the energy storage volume) encapsulated between rigid graphite/epoxy composite plates and ribs to form a twodimensional box structure. Heat storage is via solidliquid phase transition ...

Ultra High Temperature Ceramics: Densification, Properties and Thermal Stability

Hypersonic flights, re-entry vehicles, and propulsion applications all require new materials that can perform in oxidizing or corrosive atmospheres at temperatures in excess of 2000°C and sometimes over the course of a long working life. Ultra High Temperature Ceramics (UHTCs) are good candidates to fulfill these requirements. Within this family, the ZrB2 and HfB2 based composites are the most ...