In Italy in 2020, only 15.5% of school building heritage was retrofitted from an energy and environmental point of view. In this paper, the cost-optimal method was applied to two different school buildings belonging to the same Italian cold climate zone but characterized by different structural and technological solutions. The research aims at defining the cost-effective redevelopment solution among several ones proposed to apply to this building type. At the same time, this paper provides a critical analysis of the methodology applied, highlighting deficiencies related to a not proper evaluation of environmentally friendly retrofitting measures. In a cost-effective context, the main results show that the intervention on the heating system is more convenient than the retrofitting of the envelope. The energy saving is equal to about 35% for both considered schools. Among the different proposed requalification configurations, the adoption of PV (photovoltaic) electric generation is included. In this regard, an optimization procedure was implemented in a generative design environment to maximize energy production with reference to different design parameters. As a result, a solution with south oriented PV modules with a tilt angle of 42 and arranged in 0.7 m spaced rows proved to be the most effective.

Evaluation of the Cost-Optimal Method Applied to Existing Schools Considering PV System Optimization / Ciacci, Cecilia; Banti, Neri; Di Naso, Vincenzo; Bazzocchi, Frida. - In: ENERGIES. - ISSN 1996-1073. - ELETTRONICO. - 15:(2022), pp. 1-41. [10.3390/en15020611]

Evaluation of the Cost-Optimal Method Applied to Existing Schools Considering PV System Optimization

Ciacci, Cecilia;Banti, Neri;Di Naso, Vincenzo;Bazzocchi, Frida
2022

Abstract

In Italy in 2020, only 15.5% of school building heritage was retrofitted from an energy and environmental point of view. In this paper, the cost-optimal method was applied to two different school buildings belonging to the same Italian cold climate zone but characterized by different structural and technological solutions. The research aims at defining the cost-effective redevelopment solution among several ones proposed to apply to this building type. At the same time, this paper provides a critical analysis of the methodology applied, highlighting deficiencies related to a not proper evaluation of environmentally friendly retrofitting measures. In a cost-effective context, the main results show that the intervention on the heating system is more convenient than the retrofitting of the envelope. The energy saving is equal to about 35% for both considered schools. Among the different proposed requalification configurations, the adoption of PV (photovoltaic) electric generation is included. In this regard, an optimization procedure was implemented in a generative design environment to maximize energy production with reference to different design parameters. As a result, a solution with south oriented PV modules with a tilt angle of 42 and arranged in 0.7 m spaced rows proved to be the most effective.
15
1
41
Goal 4: Quality education
Goal 11: Sustainable cities and communities
Goal 13: Climate action
Ciacci, Cecilia; Banti, Neri; Di Naso, Vincenzo; Bazzocchi, Frida
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/1253904
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