Krüger, Benno ; Dammel, Frank ; Stephan, Peter (2023)
Investigating the influence of the aspect ratio on the exergetic performance of a large thermal energy storage system using a high-resolution CFD model.
Innovative solutions for thermal energy storage deployment. Lleida, Spanien (24.05.2023-26.05.2023)
doi: 10.21001/eurotherm.seminar.116.2023
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Sensible thermal energy storages play a large role in the transition towards more sustainable district heating networks. A core question in this regard is the influence of the aspect ratio of height to diameter on the storage performance. To provide reliable answers for large storage systems, a two-dimensional, high-resolution, FEM-based model has been developed and validated using temperature and mass flow data from a reference storage under real operating conditions. Based on this model, a variation of the aspect ratio has been performed. Results show, that a higher aspect ratio provides a benefit in the exergetic performance of the storage system, presumably due to the lower cross-sectional area; thus benefitting thermal stratification.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Krüger, Benno ; Dammel, Frank ; Stephan, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Investigating the influence of the aspect ratio on the exergetic performance of a large thermal energy storage system using a high-resolution CFD model |
| Sprache: | Englisch |
| Publikationsjahr: | 25 Mai 2023 |
| Ort: | Lleida, Spanien |
| Verlag: | Universitat de Lleida |
| Buchtitel: | Innovative solutions for thermal energy storage deployment |
| Veranstaltungstitel: | Innovative solutions for thermal energy storage deployment |
| Veranstaltungsort: | Lleida, Spanien |
| Veranstaltungsdatum: | 24.05.2023-26.05.2023 |
| DOI: | 10.21001/eurotherm.seminar.116.2023 |
| URL / URN: | https://repositori.udl.cat/handle/10459.1/463389 |
| Kurzbeschreibung (Abstract): | Sensible thermal energy storages play a large role in the transition towards more sustainable district heating networks. A core question in this regard is the influence of the aspect ratio of height to diameter on the storage performance. To provide reliable answers for large storage systems, a two-dimensional, high-resolution, FEM-based model has been developed and validated using temperature and mass flow data from a reference storage under real operating conditions. Based on this model, a variation of the aspect ratio has been performed. Results show, that a higher aspect ratio provides a benefit in the exergetic performance of the storage system, presumably due to the lower cross-sectional area; thus benefitting thermal stratification. |
| Freie Schlagworte: | Thermal energy storage, Stratified Storage, CFD, Exergy, Aspect Ratio |
| Zusätzliche Informationen: | Artikel-ID: H129 |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) |
| Hinterlegungsdatum: | 01 Sep 2023 07:33 |
| Letzte Änderung: | 30 Okt 2024 06:29 |
| PPN: | 511234058 |
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