Geothermal System for the CRES Bioclimatic Building
The upgrade of the air conditioning system at the bioclimatic building of the Centre for Renewable Energy Sources and Saving (CRES), located in Pikermi, Attica, has been successfully completed with the implementation of an AERMEC geothermal system. The project was carried out within the framework of the European Horizon 2020 Program, aiming to highlight the efficiency and performance of geothermal systems through the use of ground heat exchangers and heat pumps.
For the needs of the project, a water-cooled AERMEC heat pump, model WRL071HX, Energy Class A++, was installed, featuring cooling and heating capacities of 17.7 / 21 kW, a seasonal efficiency ratio in cooling of ESEER = 4.23, and in heating SCOP = 5.48. The heat pump was combined with an internal network of local fan coil units, ensuring high levels of thermal comfort and precise operational control.
The geothermal system implementation includes a combination of vertical closed-loop ground heat exchangers (single U-tube, double 2U-tube, coaxial, and helix types), as well as a high-efficiency open-loop system with two boreholes (abstraction and reinjection). This integrated application serves as a reference project for the use of advanced geothermal technologies in bioclimatic buildings.
Project information
City:
Pikermi, Attica
Solution:
Upgrade of the air-conditioning system with a geothermal system
Installed Power:
21 kW
Equipment:
Water-cooled heat pump AERMEC WRL071HX
Project Associate:
Argirios Mpairakiklis
