Analytical and Numerical Solutions of Radially Symmetric Aquifer Thermal Energy Storage Problems
| Autor: | Zerihun Kinfe Birhanu, Nils-Otto Kitterød, Anne Kværnø, Harald E. Krogstad |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
geography
Materials science geography.geographical_feature_category Differential equation Water flow 020209 energy Thermodynamics Aquifer 02 engineering and technology Mechanics Similarity solution Aquifer thermal energy storage Energy storage Physics::Geophysics Heat transfer 0202 electrical engineering electronic engineering information engineering Porous medium |
| ISSN: | 1607-7938 |
| Popis: | 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). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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