Kröger, Benno ; Dammel, Frank ; Stephan, Peter (2024)
Investigating the aspect ratio's influence on the exergetic performance and thermocline dynamics of a large water-based thermal energy storage system.
In: Journal of Energy Storage, 91
doi: 10.1016/j.est.2024.112058
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The transition toward more sustainable district heating networks requires the use of thermal energy storage systems. For sensible storage systems, the influence of the aspect ratio on the storage performance is a core consideration. Herein, a two-dimensional, high-resolution, model was developed based on the finite element method using COMSOL Multiphysics and validated using measured data from a corresponding real-world storage system under operating conditions. Four additional models were derived to investigate the influence of the aspect ratio. The results show that a higher aspect ratio leads to increased heat loss to the environment and reduced exergetic performance. However, the capacity for more stable and more efficient thermal stratification is also increased.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Kröger, Benno ; Dammel, Frank ; Stephan, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Investigating the aspect ratio's influence on the exergetic performance and thermocline dynamics of a large water-based thermal energy storage system |
| Sprache: | Englisch |
| Publikationsjahr: | 2024 |
| Ort: | Amsterdam |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Energy Storage |
| Jahrgang/Volume einer Zeitschrift: | 91 |
| Kollation: | 11 Seiten |
| DOI: | 10.1016/j.est.2024.112058 |
| URL / URN: | https://www.sciencedirect.com/science/article/pii/S2352152X2... |
| Kurzbeschreibung (Abstract): | The transition toward more sustainable district heating networks requires the use of thermal energy storage systems. For sensible storage systems, the influence of the aspect ratio on the storage performance is a core consideration. Herein, a two-dimensional, high-resolution, model was developed based on the finite element method using COMSOL Multiphysics and validated using measured data from a corresponding real-world storage system under operating conditions. Four additional models were derived to investigate the influence of the aspect ratio. The results show that a higher aspect ratio leads to increased heat loss to the environment and reduced exergetic performance. However, the capacity for more stable and more efficient thermal stratification is also increased. |
| Freie Schlagworte: | Thermal energy storage, Stratified storage, Exergy, Aspect ratio, Thermocline |
| ID-Nummer: | Artikel-ID: 112058 |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) > Analyse Thermischer Energiesysteme |
| Hinterlegungsdatum: | 05 Jul 2024 12:44 |
| Letzte Änderung: | 05 Jul 2024 12:44 |
| PPN: | 519626761 |
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