Numerical simulation of a complete charging-discharging phase of a shell and tube thermal energy storage with phase change material. (September 2017)

• Record Type: Journal Article
• Authors: Fornarelli, F.; Ceglie, V.; Fortunato, B.; Camporeale, S.M.; Torresi, M.; Oresta, P.; Miliozzi, A.
• Is Part Of: Energy procedia. Volume 126(2017)
• Page Start: 501
• Page End: 508
• Publication Date: 2017-09
• Subjects: Phase change material (PCM) -- latent heat thermal energy storage (LHTES) -- shell-and-tube -- convection -- molten salts; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.08.220
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: Numerical simulations of a shell and tube energy storage device based on a phase change material (PCM) in vertical position are performed. The heat transfer fluid (HTF) is a diathermic oil and the PCM, made by molten salts, is confined within a closed shell surrounding the tube where the HTF flows. The energy loss through the external wall is included. The test has been carried out within the experimental activity performed by ENEA. A complete cycle is considered: the initial stabilization, the charging phase and the discharging phase. Details of flow behavior within the molten PCM are described highlighting its influence on the device performance.