Environmental Sustainability and Energy Efficiency in Historical Buildings: GeoFit Project Implementation in the Case Study of a Medieval Fortress in Perugia

Abstract

Italian cities are mainly constituted by buildings constructed until the mid-20 th century by pre-industrial construction techniques. A HVAC system for the energy retrofit of historical buildings is evaluated when applied in the case study of Sant'Apollinare. It consists of a ground source heat pump a water tank for thermal energy storage connected to a low-temperature radiant system and air handling unit. The building thermal-energy behavior, typically influenced by thermal inertia in historical buildings, and the novel HVAC system performance interactions are comparatively assessed together with more traditional scenarios. Energy demand decreases by about one third compared to the pre-retrofit situation.

An Integrated HBIM Simulation Approach for Energy Retrofit of Historical Buildings Implemented in a Case Study of a Medieval Fortress in Italy

“…The building consists of three floors: two above ground and a basement, for a total usable area equal to about 240 m 2 and a heated volume of about 700 m 3 . The basement is used as a laboratory, while the upper floors are intended for offices.…”

“…This environmental certification allowed monitoring the impacts of the whole refurbishment and construction process, in terms of both sustainability of the construction process and preservation of the cultural value of the artefact during the restoration process [36]. The GBC HB protocol, indeed, addresses the issue of the The building consists of three floors: two above ground and a basement, for a total usable area equal to about 240 m 2 and a heated volume of about 700 m 3 . The basement is used as a laboratory, while the upper floors are intended for offices.…”