Earth to air heat exchanger conditioning potential in an office building in a continental mediterranean climate

This article presents the results of the energy performance improvement due to the use of an earth to air heat exchanger of an office building located in Extremadura (Spain). The climate in this region is Continental Mediterranean, with mild winters and very hot summers. The first soil temperature data measures allowed the validation of the simulation software. Heating and cooling building loads were evaluated with and without earth to air heat exchanger. Also, a combination of these models, a third one, was evaluated. The energy savings of the system in each case were measured.