Experimental and Numerical Investigation of the Melting of a Spherical Encapsulated Phase Change Material With Variable Material Data

DOI

10.2991/ahe.k.210202.032How to use a DOI?

Keywords

thermal storage, latent heat, phase change material, numerical simulation, computational fluid dynamics

Abstract

The efficiency of energy applications will gain importance throughout the next years. Development and optimization of future systems, needs to consider power supply, capacity, flexibility of system integrations and economic profitability. Thermal energy storage concepts based on macro-encapsulated phase-change material (PCM) promise to fulfill those requirements. One challenge is the change of physical properties of the PCM during its melting, which is here studied numerically and validated by experiments in this contribution. The numerical model, using the Volume of Fluid method and a detailed description of sensible and latent heat processes, discusses spherical encapsulated PCMs with different melting temperatures. The latent heat source term is computed and corrected through iteration. The numerical results, as verified for a single capsule through an experimental model, can be applied to the research of packed-bed PCMs.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Valerie Pabst
AU  - Robert Güttel
AU  - Peter Renze
PY  - 2021
DA  - 2021/02/04
TI  - Experimental and Numerical Investigation of the Melting of a Spherical Encapsulated Phase Change Material With Variable Material Data
BT  - Proceedings of the 14th International Renewable Energy Storage Conference 2020 (IRES 2020)
PB  - Atlantis Press
SP  - 217
EP  - 224
SN  - 2589-4943
UR  - https://doi.org/10.2991/ahe.k.210202.032
DO  - 10.2991/ahe.k.210202.032
ID  - Pabst2021
ER  -