Theoretical study of cooling technologies driven by geothermal energy for use in tertiary buildings in Belgium

We investigate the possibility of using geothermal hot water in heat-driven cooling systems, for air conditioning in tertiary buildings in Belgium. Models of two possible cooling systems and of three tertiary buildings are developed in the TRNSYS environment. Results show that hot water temperature level and waste water regulations complies with desiccant cooling system, provided that the fresh air flow rate, related to the occupancy profile of the building, matches the process air flow rate of the cooling system.