Standardised methods for the determination of key performance indicators for thermal energy storage heat exchangers

Latent thermal energy storage (LTES) heat exchangers can provide in a broad range of systems. Implementing LTES requires an assessment their performance given system. The exchanger is described by its indicators which are classified as technical, economical, and life-cycle indicators. current paper focusses on the technical indicator specifically predictive methods aid To structure analysis, thermodynamic framework provided allows to clearly define classify In second step, literature reviewed for reported with specific focus these averaged effectiveness-number transfer units (ε-NTU) phase change time method identified important models, analyzed, compared based theoretical derivation. relation between effectiveness investigated both theoretically data available results recommendations standardizing characterization exchangers. By exchangers, researcher assess different systems without additional experiments or CFD calculations.