Exploring the properties of user defined phase change materials for thermal energy storage

Law Torres Sevilla*, Jovana Radulovic

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

In this paper, a 2D thermal energy storage (TES) is modelled and solved numerically in the software COMSOL Multiphysics. The aim of this study is to examine the suitability of relevant thermal properties for the selected system design for charging only. The system consists of a cylindrical tank with height 0.5m and diameter 0.5m, acting as a packed bed full of encapsulated phase changing materials (PCM). The heat transfer fluid is water, entering the system at 90°C at a velocity of 0.01m/s. The investigation of the relevant properties focuses on the effect of melting temperature, latent heat of fusion, density, thermal conductivity and specific heat capacity. The final temperatures at different for spheres at different positions across the tank length are recorded and the heat absorbed for said spheres is calculated. Results indicate that the liquid properties of the PCM are more dominant over the temperature reached by system than the solid ones. Furthermore, higher final temperatures have been noted for high thermal conductivity of the liquid. In contrast, high specific heat capacity of the liquid yields significantly lower final temperatures.

Original languageEnglish
Title of host publicationProceedings of the 6th World World Congress on Mechanical, Chemical, and Material Engineering
PublisherAvestia Publishing
Pages1-9
Number of pages9
ISBN (Print)978-1-927877-66-1
DOIs
Publication statusPublished - 1 Aug 2020
Event6th World Congress on Mechanical, Chemical, and Material Engineering - Online
Duration: 16 Aug 202018 Aug 2020

Publication series

NameProceedings of the World Congress on Mechanical, Chemical, and Material Engineering
PublisherAvestia Publishing
ISSN (Print)2369-8136

Conference

Conference6th World Congress on Mechanical, Chemical, and Material Engineering
Abbreviated titleMCM 2020
Period16/08/2018/08/20

Keywords

  • COMSOL Multiphysics
  • Latent Heat
  • Phase Change Material
  • Thermal Energy Storage

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