In Italy, approximately 40% of the total energy consumption can be directly attributed to the building sector, which is also responsible for about 36% of greenhouse gas emissions. This is due mainly to the old age of most of the Italian buildings (-42% is more than 50 years old) and the slow renovation rates (-1%/year), resulting in poor energy performances. Over the years, several systems have been proposed to improve their energy efficiency, indoor comfort, and sustainability, with a particular interest in improving the building’s envelope and façade systems due to the holistic influence of passive systems on the building design. This research focuses on evaluating a passive retrofit action on an existing building typology, namely the public housing of the Monteruscello district in Pozzuoli (south of Italy), from energy and environmental points of view. The district is realized on an area of -4 km2 after the earthquake in 1980 to provide housing for 20000 people, and is mainly composed of 4-level multifamily buildings. The buildings were made with prefabricated elements, which allowed for quick construction times, but entailed several construction problems due to the poor experience of local workers with the adopted technologies. Consequently, today the district’s buildings suffer severe degradation and need energy and aesthetic upgrades. To carry out the analysis, the 4-level multifamily building is modeled in TRNSYS considering its construction characteristics, then the installation of a second-skin façade system is simulated to assess its energy and environmental impact across a whole year. The second-skin design thoughtfully combines 3D-printed modules and fabric sections, providing energy and aesthetic improvements. The simulation results returned a notable reduction in terms of primary energy consumption and carbon dioxide equivalent emissions in the retrofit cases compared to the reference case, with a significant impact when extending the retrofit on the whole district.
A SECOND-SKIN FAÇADE SYSTEM TO IMPROVE ENERGY EFFICIENCY AND AESTHETIC APPEAL: THE CASE STUDY OF MONTERUSCELLO
Luigi Tufano
;Simona Barbato;Yorgos Spanodimitriou;Michelangelo Scorpio;Giovanni Ciampi
2023
Abstract
In Italy, approximately 40% of the total energy consumption can be directly attributed to the building sector, which is also responsible for about 36% of greenhouse gas emissions. This is due mainly to the old age of most of the Italian buildings (-42% is more than 50 years old) and the slow renovation rates (-1%/year), resulting in poor energy performances. Over the years, several systems have been proposed to improve their energy efficiency, indoor comfort, and sustainability, with a particular interest in improving the building’s envelope and façade systems due to the holistic influence of passive systems on the building design. This research focuses on evaluating a passive retrofit action on an existing building typology, namely the public housing of the Monteruscello district in Pozzuoli (south of Italy), from energy and environmental points of view. The district is realized on an area of -4 km2 after the earthquake in 1980 to provide housing for 20000 people, and is mainly composed of 4-level multifamily buildings. The buildings were made with prefabricated elements, which allowed for quick construction times, but entailed several construction problems due to the poor experience of local workers with the adopted technologies. Consequently, today the district’s buildings suffer severe degradation and need energy and aesthetic upgrades. To carry out the analysis, the 4-level multifamily building is modeled in TRNSYS considering its construction characteristics, then the installation of a second-skin façade system is simulated to assess its energy and environmental impact across a whole year. The second-skin design thoughtfully combines 3D-printed modules and fabric sections, providing energy and aesthetic improvements. The simulation results returned a notable reduction in terms of primary energy consumption and carbon dioxide equivalent emissions in the retrofit cases compared to the reference case, with a significant impact when extending the retrofit on the whole district.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
