Edifici storici ed efficienza energetica. Palermo come scenario di sperimentazione

Risultato della ricerca: Book

Abstract

Energy efficiency is a substantial requirement for buildings but, as far as the architectural heritage is concerned, its necessity and the related consequences are subjects of debate. Since they represent the artistic and technical culture of the past, historic buildings can be considered as non-renewable resources to be preserved for the generations to come. On the one hand, economic incentives and savings can promote energy upgrade measures which may appear not always acceptable for a preservation aim. On the other hand, keeping historic buildings in use is essential to their conservation. As a consequence, reducing the gap of energy performance with refurbished constructions would be of primary importance. The energy upgrade techniques well-established in recent constructions imply significant risks for the architectural heritage, if their extension to its improvement is uncritical. Nevertheless, the priority of conservation does not necessarily conflict with the need of energy efficiency. Decades of structural reinforcements demonstrate that the detailed analysis of a historic building suggests even relevant possibilities to enhance its performance and at the same time to respect and maintain its aesthetic, material and construction features. Similarly, energy upgrade solutions compatible with cultural value can be identified focusing on the peculiarities of each building and taking into consideration the hygrothermal behaviour of traditional constructions. This work deals with the energy efficiency of historic buildings by focusing on performances and compatible improvements of the envelope. The study involves local contexts, where the characteristics of the architectural heritage are comparable and strategies specific to the building stock can be developed through an analysis of features related to its energy performance. In order to demonstrate this assumption, the architectural heritage of Palermo has been chosen as the main case study. The first part of this work contextualises energy efficiency in the field of historic architecture. In the first chapter this topic is considered as part of the wider concept of sustainability, in connection with the principles of conservation, restoration and protection of historic buildings. The second chapter reviews the most relevant paths of scientific research, while the third discusses several energy upgrade measures, proposed by literature and sometimes applied to monumental buildings as well. The methodology followed in the case study of Palermo can be extended to different local contexts. It is described in the fourth chapter and ranges from the envelope component to the urban scale. As to the area of Palermo, the methodology is related to the detailed data available about materials and construction techniques of its architectural heritage and to the local regulation for the preservation of historic constructions. Following this multi-scale approach, the fifth chapter discusses the results of laboratory and in situ measurements aimed at describing the thermal and hygrometric properties of local historic masonry. The sixth chapter categorises part of the historic centre of Palermo on the basis of building geometry, aggregation in the urban fabric and conservation restraints. The main purpose is relating the typologies set by the local urban regulation to the energy performance of buildings. The seventh chapter analyses three constructions, selected as representative of the corresponding building category. Their current performances and the effectiveness of envelope upgrade measures are assessed through dynamic thermal simulations. The interconnection of these scales of analysis provides a contribution to a general framework of knowledge, which would support the compatible ener
Lingua originaleItalian
Editore40due edizioni
Numero di pagine240
Volume4
ISBN (stampa)978-88-98115-23-5
Stato di pubblicazionePublished - 2017

Serie di pubblicazioni

NomeTRAME DI ARCHITETTURA E TECNICA

Cita questo

Edifici storici ed efficienza energetica. Palermo come scenario di sperimentazione. / Genova, Enrico.

40due edizioni, 2017. 240 pag. (TRAME DI ARCHITETTURA E TECNICA).

Risultato della ricerca: Book

Genova, E 2017, Edifici storici ed efficienza energetica. Palermo come scenario di sperimentazione. TRAME DI ARCHITETTURA E TECNICA, vol. 4, 40due edizioni.
Genova E. Edifici storici ed efficienza energetica. Palermo come scenario di sperimentazione. 40due edizioni, 2017. 240 pag. (TRAME DI ARCHITETTURA E TECNICA).
Genova, Enrico. / Edifici storici ed efficienza energetica. Palermo come scenario di sperimentazione. 40due edizioni, 2017. 240 pag. (TRAME DI ARCHITETTURA E TECNICA).
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