Conference paper Open Access
Development and Validation of Analytical Solutions for Earth Basket (Spiral) Heat Exchangers
Witte, H.J.L.; Heinrichs, F.A.; Reichl, C.; Meeng, C.; Doerr, C.; Steurer, A.; Kling, S.
In this paper we present an analytical solution and its validation for earth basket (vertical spiral) ground heat exchangers. The model, based on the well known Finite Line Source Equation, accounts for the heat exchanger pipe diameter and seasonally varying near surface temperature. For computational efficiency the standard approach of using G-functions has been implemented as well. The analytical model is validated based on laboratory experiments and extensive CFD analysis.
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- Publication date:
- October 17, 2022
- DOI:
-
- Keyword(s):
- spiral ground heat exchanger finite line source g-function computational fluid dynamics model validation
- Grants:
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European Commission:
- GeoFit - Deployment of novel GEOthermal systems, technologies and tools for energy efficient building retroFITting. (792210)
- Meeting:
- European Geothermal Congress 2022 (EGC 2022), Berlin, Germany, 17-21 October 2022
- License (for files):
- Creative Commons Attribution 4.0 International