Diersch, H.-J. G. ; Bauer, D. ; Heidemann, W. ; Rühaak, W. ; Schätzl, P. (2011)
Finite element modeling of borehole heat exchanger systems: Part 2. Numerical simulation.
In: Computers & Geosciences, 37 (8)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Single borehole heat exchanger (BHE) and arrays of BHE are modeled by using the finite element method. Applying BHE in regional discretizations optimal conditions of mesh spacing around singular BHE nodes are derived. Optimal meshes have shown superior to such discretizations which are either too fine or too coarse. The numerical methods are benchmarked against analytical and numerical reference solutions. Practical application to a borehole thermal energy store (BTES) consisting of 80 BHE is given for the real-site BTES Crailsheim, Germany. The simulations are controlled by the specifically developed FEFLOW-TRNSYS coupling module. Scenarios indicate the effect of the groundwater flow regime on efficiency and reliability of the subsurface heat storage system.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Diersch, H.-J. G. ; Bauer, D. ; Heidemann, W. ; Rühaak, W. ; Schätzl, P. |
| Art des Eintrags: | Bibliographie |
| Titel: | Finite element modeling of borehole heat exchanger systems: Part 2. Numerical simulation |
| Sprache: | Englisch |
| Publikationsjahr: | 2011 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Computers & Geosciences |
| Jahrgang/Volume einer Zeitschrift: | 37 |
| (Heft-)Nummer: | 8 |
| URL / URN: | http://www.sciencedirect.com/science/article/B6V7D-51H1DM5-1... |
| Kurzbeschreibung (Abstract): | Single borehole heat exchanger (BHE) and arrays of BHE are modeled by using the finite element method. Applying BHE in regional discretizations optimal conditions of mesh spacing around singular BHE nodes are derived. Optimal meshes have shown superior to such discretizations which are either too fine or too coarse. The numerical methods are benchmarked against analytical and numerical reference solutions. Practical application to a borehole thermal energy store (BTES) consisting of 80 BHE is given for the real-site BTES Crailsheim, Germany. The simulations are controlled by the specifically developed FEFLOW-TRNSYS coupling module. Scenarios indicate the effect of the groundwater flow regime on efficiency and reliability of the subsurface heat storage system. |
| Freie Schlagworte: | Borehole heat exchanger;FEFLOW;TRNSYS;Borehole thermal energy store |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Angewandte Geothermie 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 06 Nov 2014 13:29 |
| Letzte Änderung: | 07 Nov 2014 13:35 |
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