Numerical Modeling of the Interference of Thermally Unbalanced Aquifer Thermal Energy Storage Systems in Brussels (Belgium)

A numerical model was built using FEFLOW® to simulate groundwater flow and heat transport in a confined aquifer Brussels where two Aquifer Thermal Energy Storage (ATES) systems were installed. These are operating adjacent buildings exploit the same made up of mixed sandy silty sublayers. The calibrated for partially transport. Several scenarios considered determine if ATES interfering. results showed that significant imbalance between injection warm cold water first installed system led occurrence plume spreading more over years. This eventually reached wells installation. temperature, therefore, increased efficiency building’s cooling decreased. When second began be operational, simulated that, even plumes had come into contact, influence on one negligible during years joint operation. For longer modeled period, pointed out operation not adapted balance, long term, quantity injected aquifer. temperature would rise inexorably both systems. spread at expense systems, especially concerning with stored groundwater.