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08 Aug 2017
Status : this preprint has been withdrawn by the authors.
Analytical and Numerical Solutions of Radially Symmetric Aquifer
Thermal Energy Storage Problems
Zerihun K. Birhanu , Nils-Otto Kitterød , Harald Krogstad , and Anne Kværnø
The paper discusses analytical and numerical radial solutions of the differential equations for heat transport in water-saturated porous media. In particular, a similarity solution is obtained for a 2D-horizontal confined aquifer with constant radial flow. Numerical solutions are derived using a high-resolution Lagrangian approach suppressing spurious oscillations and artificial dispersion. There is a good correspondence between numerical and analytical solutions. The primary purpose of the investigation has been to calculate the recovery factor of an Aquifer Thermal Energy Storage (ATES) system with a cyclic repetition of injection and pumping. Solutions covering both instantaneous and delayed heat transfer between fluid and solid, as well as time varying water flow, are derived and applied to a one-well test case. In hydrological terms, these solutions are relevant for a wide range of problems where groundwater reservoirs are utilized for extraction and storage (viz. irrigation; water supply; geothermal extraction).
This preprint has been withdrawn.
Received: 21 May 2017 – Discussion started: 08 Aug 2017
Zerihun K. Birhanu , Nils-Otto Kitterød , Harald Krogstad , and Anne Kværnø
Interactive discussion
Status: closed
Status: closed
AC : Author comment | RC : Referee comment | SC : Short comment | EC : Editor comment
- Printer-friendly version
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Interactive discussion
Status: closed
Status: closed
AC : Author comment | RC : Referee comment | SC : Short comment | EC : Editor comment
- Printer-friendly version
- Supplement
Zerihun K. Birhanu , Nils-Otto Kitterød , Harald Krogstad , and Anne Kværnø
Zerihun K. Birhanu , Nils-Otto Kitterød , Harald Krogstad , and Anne Kværnø
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