Proceedings of the International Renewable Energy Storage Conference 2021 (IRES 2021)

Consecutive Operation of a Rock Bed Thermal Energy Storage - CFD Analysis

Authors
Yousif Muhammad*, youmu@dtu.dk
Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej, 2800, Lyngby, Denmark
Kai Knoblochkaikn@dtu.dk
Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej, 2800, Lyngby, Denmark
Henrik Lund Frandsenhlfr@dtu.dk
Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej, 2800, Lyngby, Denmark
Kurt Engelbrechtkuen@dtu.dk
Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej, 2800, Lyngby, Denmark
Corresponding Author
Yousif Muhammadyoumu@dtu.dk
Available Online 3 March 2022.
DOI
https://doi.org/10.2991/ahe.k.220301.009How to use a DOI?
Keywords
High Temperature Thermal Energy Storage (HT-TES); packed bed; rock-bed; Computational fluid dynamics (CFD); COMSOL Introduction (Heading 1)
Abstract

High temperature thermal energy storage units can provide the flexibility required, by storing the excess energy in the form of heat and suppling it back either into the electric grid or as heat to any energy intense industrial process. DTU Energy has constructed a vertical flow high temperature thermal energy storage unit, which uses air as a heat transfer fluid and Swedish diabase rocks as a storage medium. This storage unit can store heat at a temperature of up to 675℃ and has a thermal capacity of 1 MWhth. The main objective of this study is to present an experimentally validated 2D time dependent computational fluid dynamics model of the rock-bed thermal energy storage developed in COMSOL Multiphysics. The results show good agreement between experimental and model data. Moreover, the overall efficiency is increased when subjected to consecutive cycling.

Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

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Volume Title
Proceedings of the International Renewable Energy Storage Conference 2021 (IRES 2021)
Series
Atlantis Highlights in Engineering
Publication Date
3 March 2022
ISBN
978-94-6239-546-6
ISSN
2589-4943
DOI
https://doi.org/10.2991/ahe.k.220301.009How to use a DOI?
Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Yousif Muhammad
AU  - Kai Knobloch
AU  - Henrik Lund Frandsen
AU  - Kurt Engelbrecht
PY  - 2022
DA  - 2022/03/03
TI  - Consecutive Operation of a Rock Bed Thermal Energy Storage - CFD Analysis
BT  - Proceedings of the International Renewable Energy Storage Conference 2021 (IRES 2021)
PB  - Atlantis Press
SP  - 93
EP  - 99
SN  - 2589-4943
UR  - https://doi.org/10.2991/ahe.k.220301.009
DO  - https://doi.org/10.2991/ahe.k.220301.009
ID  - Muhammad2022
ER  -