Search results for " tecnica."
showing 10 items of 1862 documents
Life cycle energy performances and environmental impacts of a prefabricated building module
2018
Abstract The paper explores the energy performances and environmental impacts of a prefabricated building module located in Messina (Sicily, Italy) through an approach that combines both the non-steady state building simulation and the Life Cycle Assessment methodology. The building uses renewable energy technologies and is usable in emergency situations or as simply temporary housing. Results show that the building module causes the emission of 1.5 t of CO2eq/m2 and consumes 29.2 GJ/m2 of primary energy during its life cycle. The building achieves the Net Zero Energy Building target even if it has relevant environmental impacts in the materials production stage (72% on average of the total…
Multi-objective optimization of building life cycle performance. A housing renovation case study in Northern Europe
2020
While the operational energy use of buildings is often regulated in current energy saving policies, their embodied greenhouse gas emissions still have a considerable mitigation potential. The study aims at developing a multi-objective optimization method for design and renovation of buildings incorporating the operational and embodied energy demands, global warming potential, and costs as objective functions. The optimization method was tested on the renovation of an apartment building in Denmark, mainly focusing envelope improvements as roof and exterior wall insulation and windows. Cellulose insulation has been the predominant result, together with fiber cement or aluminum-based cladding …
Computing methods for resilience: evaluating new building components in the frame of SECAPs
2019
Resilience represents a new important feature that the anthropic systems, and cities among them, are called to cope with. In fact, the increasing negative stresses to which urban contexts are exposed, and mainly the climatic pressures, call for the capability of adapting to these modifications and, possibly, to restore the ex-ante situations. The role of the buildings and their envelope components is of crucial importance to this aim. This paper analyses the features of resilience of the roofs of buildings by means of proper quantitative indexes. On purpose, the performances of green and cool roofs are compared. The possibility of adopting nonstructural solutions, like the windows shading d…
Special Issue “Smart Urban Lighting Systems”
2020
The design and operation of multifunctional infrastructures for public lighting as well as their impact on the urban environment and citizens’ life is today of great interest. The cost of energy for public lighting is often an issue for the budget of municipalities. Furthermore, researchers’ and designers’ attention is increasingly focused on aspects of public lighting not directly valuable through economic factors. Starting from the “quality” of the light environment, looking at citizens’ visual comfort, the light has to be considered as an instrument to improve the urban context and objects therein (including buildings). Indeed, urban degradation (lack of infrastructures, maintenance, ser…
INNER AREAS
2022
Inner areas, as defned in the Italy’s National Strategy (SNAI), are part of the territory that plays a central role in the cultural and social fabric of our communities, are an essential component of our society, economy, and environment. However, they are still often neglected and overlooked, resulting in deterioration, abandonment, and social exclusion.For this reason, it is crucial that the felds of architecture, restoratio and architectural history and urban and territorial planning are committed to revitalizing and enhancing inner areas. These disciplines have the knowledge, skills, and tools necessary to create sustainable and innovative solutions that can transform these territories …
Acciones para mejorar la eficiencia energética en los edificios en Europa: estado del arte sobre los standards técnicos
2022
The paper is aimed at reviewing the state of the art of the European technical normative implementation during the last decades concerning the building energy efficiency. Indeed, it is well acknowledged that the present building stock is largely obsolete and inefficient: in the European context alone, around 75% of the buildings is not energy efficient and most are expected to be in use until 2050. Consequently, buildings require not only a general rehabilitation, to extend, or even avoid, its end-of-life time, but also a complete afterthought of their energy performance. That is extremely urgent to improve the overall sustainability of the construction sector that, alone, is one of the mai…
An innovative approach to manage uncertainties and stock diversity in the EPBD cost-optimal methodology
2018
The EU Energy Performance of Buildings Directive (EPBD) 2010/31/EU is a step in the right direction to promote near zero energy buildings (NZEB) in a step-wise manner, starting with minimum energy performance and cost optimal thresholds for “reference buildings” (RBs) for each category. Nevertheless, a standard method for defining RBs does not exist, which led to a great divergence between MS in the level of detail used to define RBs for the EPBD cost-optimal analysis. Such lack of harmonisation between MS is further evident given the resulting large discrepancies in energy performance indicators even between countries having similar climate. Furthermore, discrepancies of 30% or higher betw…
LE CHIESE IN LEGNO DELLA LITUANIA - WOODEN CHURCHES OF LITHUANIA
2017
Lithuania have a great variety of wooden architec- tures, among which the churches emerge for their quality and construction characters, prevailing the use of local materials. The strong link between architecture and the uncontaminated nature of places defines the identity of architectures, so that they sometimes appear almost like a large wooden sculpture, carved in a unique piece. The meticulous knowledge of the buildings has created an atlas of construction techniques, proposing itself as a tool for the conservation and preservation of refined building heritage; the atlas is divided according to themes as wood species, processing methods, construc- tion phases, mutual relationship betwee…
La valorizzazione dell'architettura storica palermitana attraverso il miglioramento delle prestazioni energetiche
2014
L'obiettivo del miglioramento energetico, come superamento dell'attuale regime di deroga, si pone anche per l'architettura storica palermitana, elencale ed aulica, e richiede la conoscenza delle sue prestazioni per individuarne potenzialità e carenze e per delineare opportune strategie d'intervento. Bisogna dunque analizzare le caratteristiche geometriche, materiche, costruttive che influenzano il comportamento energetico e ambientale di questi edifici. Inoltre l'individuazione di costanti tipologiche, come ricerche europee evidenziano, consente di definire le possibili modalità d'intervento sull'architettura storica in base alle esigenze più o meno restrittive poste per la sua conservazion…
L’Arsenale di Palermo: vicende costruttive e progetti di riforma
2017
Esistono architetture le cui travagliate vicissitudini, se comprese in rapporto con la storia della città cui appartengono, finiscono per far assumere, alle stesse architetture, un ruolo emblematico e simbolico. Palermo, come e più di ogni altra città, si è alimentata per millenni di simboli spesso antitetici. La sua principale attitudine sembra essere stata, nel corso di una lunga storia edificatrice, una disseminazione di architetture o di fatti urbani in cui rispecchiarsi, quali vere e proprie sineddoche, parti rappresentative del tutto. Sembrerebbe quasi che Palermo ritragga se stessa, con le sue molteplici contraddizioni, in molte delle architetture che più la rappresentano e ne riprod…