Thermal Performance Assessment of an Opaque Ventilated Façade in the Summer Period: Calibration of a Simulation Model through in-field Measurements

In recent years, several studies have been performed to evaluate the actual contribute of Opaque Ventilated Façades (OVF) as far as the energy efficiency of buildings in the summer period is concerned. In this framework an experimental real-scale module of an OVF was built and tested. Results demonstrated a reduction of ~58% of the thermal load obtained by using a OVF with respect to the unventilated façade configuration. In this paper the experimental measurements were used to calibrate dynamic simulations using ESP-r software, in order to identify the input factors and the key issues mainly impacting on the results discrepancy.