AIRAH and IBPSA’s Australasian Building Simulation 2017 Conference, Melbourne, November 15- 16. 1 MEASUREMENT AND PREDICTION OF HEAT TRANSFER AND MASS FLOW OF A VENTILATED FAÇADE ANNAMARIA BELLERI Institute for Renewable Energy EURAC Research Via G. Di Vittorio 16 39100, Bolzano, Italy annamaria.belleri@eurac.edu SERGIO TARANTINO, Stud.AIRAH CIFE Civil, Environmental and Energy Engineering Y2E2 Building Stanford University 473 Via Ortega Stanford, CA 94305-4020 United States of America ROBERTO LOLLINI Institute for Renewable Energy EURAC Research Via G. Di Vittorio 16 39100, Bolzano, Italy EZIO ARLATI ProTeA Lab ABC Department Politecnico di Milano Via Bonardi 9 20133, Milan, Italy ABSTRACT Opaque ventilated façades (OVFs) can be an effective retrofit solution to improve the energy performance of existing commercial buildings. The paper presents a modelling approach for OVFs in Trnsys simulation software coupling thermal and airflow models. The test façade adopted for this research is part of an experimental application built on an existing industrial building in Turate (Como, Italy) whose thermal behaviour is monitored by a wireless system network (WSN). The simulation of the thermal behaviour and the monitoring of the built envelope allows validating a comparison of ventilated façade actual performance and expected performance in real context. INTRODUCTION Beyond the advantages in terms of protection against atmospheric agents, opaque ventilated façades (OVFs) can be an effective retrofit solution to improve the energy performance of existing commercial buildings. Recent studies [10][15] and research projects [4] have been