Monitoring results of aquifer thermal energy storage system in a Belgian hospital

This paper presents the basic parameters and energy flows of an aquifer thermal energy storage (ATES) systemcombined with reversible water/water heat pumps used for heating and cooling the new hospital Klina (Antwerp Belgium). The system is one of the first ATES projects in Belgium, and its operation is monitoredwith the aid of a DAQ system. The energy flows, primary energy consumption and CO2 emission reductionwere calculated based on DAQ loggings of the first 3 years of systems operation. It is proved that the ATES system is a highly energy efficient system delivering 74% of the total cooling demand. The COPcooling of the ATES system was 45. A primary energy saving of 69% on cooling energy was achieved. These figures prove that the ATES system is significantly less demanding in terms of primary energy.