[en] Interest in heat transport in porous media has increased because of its many applications such use as tracer or in geotechnical engineering solutions. Understanding of the physical processes and parameters determining heat transport is therefore important. In this paper, heat transport is studied during a shallow heat injection and storage field test. The test is simulated using SEAWAT. Sensitivity analyses and collinear diagnostics are used to derive which parameters can be derived from the test and how reliable these values are. Heat transport during the test is compared with heat transport in the surficial zone at the same field site to compare parameter values. The most sensitive parameter is the thermal conductivity of the solid followed by the porosity, heat capacity of the solid and the longitudinal dispersivity. This indicates the predominance of conductive transport during the storage phase over the convective transport during the injection phase. Whereas heat transport in the surficial zone is insensitive to the longitudinal dispersivity, this parameter must be included to simulate the field test. This indicates that dispersivity can not be ignored simulating convective heat transport in aquifers.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Vandenbohede, Alexander; Universiteit Gent - Ugent > Geology and Soil Science > Research Unit Groundwater Modelling
Hermans, Thomas ; Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Géophysique appliquée
Nguyen, Frédéric ; Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Géophysique appliquée
Lebbe, Luc; Universiteit Gent - Ugent > Geology and Soil Science > Research Unit Groundwater Modelling
Language :
English
Title :
Shallow heat injection and storage experiment : heat transport simulation and sensitivity analysis.
Alternative titles :
[fr] Expérience d'injection et de stockage de chaleur à faible profondeur : simulation du transport de chaleur et analyse de sensibilité
Publication date :
October 2011
Journal title :
Journal of Hydrology
ISSN :
0022-1694
eISSN :
1879-2707
Publisher :
Elsevier Science
Volume :
409
Issue :
1-2
Pages :
262-272
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Fund for Scientific Research—Flanders (Belgium) F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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