Applications of DSF as Renewable Source Energy Savings in a Small Detached Family House Prototype

Abstract

AbstractThe applications of DSF (Double Skin Facade) as renewable source energy savings in a small detached family house prototype is developed in this study. The DSF system, utilized in this work in the improvement of the thermal comfort conditions and used as HVAC (Heating, Ventilating and Air Conditioning) system in the ventilation mode, is installed in the south-facing building in two windows. This numerical study, made in winter condition in a Mediterranean typical day, use a Building Thermal Modeling software developed by the authors. The software, that simulate the opaque, transparent and internal bodies and spaces, simulate in this work also the DSF system in detail. The software, using balance equations of energy and mass, evaluates the solar radiation, glass radiative proprieties, convective coefficients, internal airflow, thermal comfort evaluation, in transient conditions. This study assesses the level of thermal comfort without and with DSF system mounted in the south-facing building of the two main windows. According the obtained results is possible to verify that without DSF system the south-facing spaces are uncomfortable by positive PMV values and the north-facing spaces are uncomfortable by negative PMV values. When is used the DSF system, in general, the level of thermal comfort is near the acceptable values, as provided for in intentional standards.KeywordsEnergy productionNumerical modelDouble skin facadeEnergy and mass balance equations