Unpublished conference/Abstract (Scientific congresses and symposiums)
Numerical simulation of heat transport associated with groundwater pumping in an alluvial aquifer
Fossoul, Frédérique; Orban, Philippe; Dassargues, Alain
20093rd Int. Congress of Geologica Belgica
 

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Keywords :
low energy geothermic pumping; heat transport modelling; groundwater
Abstract :
[en] In a context more favourable to renewable energies, various aquifers are studied to feed heating and/or cooling systems. The groundwater flow and heat transport are modelled in the alluvial aquifer of the river Meuse in order to provide an integrated tool for assessing the feasibility of a low energy air cooling /heating system for a large office building by pumping groundwater and discharging in the river. First, a comparative sensitivity analysis is performed using three different codes (MT3D, SHEMAT and HYDROGEOSHERE) for assessing the influence of coupling and non linearities in the main parameters due to the temperature evolution in function of time. Then, assuming that the variations of the aquifer temperature are weak enough to neglect their influence on hydrodynamics and thermal parameters, the MT3D and HYDROGEOSPHERE codes are used for modelling the actual case-study. In practice, for cooling the office building with groundwater initially at 13°C, the main influence of the relative hot water from the river Meuse (in hot summer conditions 27°C) is computed and constitutes the major limiting factor. An optimisation of the pumping schema is computed to maximise the efficiency of the cooling/heating system.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Fossoul, Frédérique ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Orban, Philippe  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Dassargues, Alain  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Language :
English
Title :
Numerical simulation of heat transport associated with groundwater pumping in an alluvial aquifer
Publication date :
September 2009
Event name :
3rd Int. Congress of Geologica Belgica
Event organizer :
University of Ghent
Event place :
Ghent, Belgium
Event date :
14-15/09/2009
Audience :
International
Available on ORBi :
since 18 November 2009

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