Search results for "building"
showing 10 items of 1985 documents
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…
UNO SGUARDO ALLE FONTI SULL’ARCHITETTURA CIVILE TRA QUATTROCENTO E CINQUECENTO IN SICILIA: I CONTRATTI PER ANALOGIA
2021
This study examines the copious contractual documentation related to the construction of civil architecture in Sicily between the 15th and 16th centuries. Taking also into account the legal value of the acts, a series of observations emerge providing a more precise portrait of the masters involved, the architectural design and social behavior of the contractors. A framework of conventions and procedures comes out that combines local characters and long-lasting Mediterranean traditions.
Strategies for building energy retrofit in the mediterranean basin
2012
The paper focuses on passive and active strategies for achieving sustainable recovery of existing buildings in the Mediterranean Basin, in order to improve indoor comfort and reduce carbon dioxide emissions in the atmosphere. The Mediterranean Basin is characterized by relatively mild winters and very warm summers. Although Mediterranean climate conditions offer excellent opportunity for the application of alternative energy sources (eg. wind, solar, hydroelectric), they are not very applied yet. Italy and Sicily in particular, comparing to most of EU countries , hang still behind in the application of innovative techniques for sustainable design and planning, and energy retrofitting of exi…
Cap Rate as the Interpretative Variable of the Urban Real Estate Capital Asset: A Comparison of Different Sub‐Market Definitions in Palermo, Italy
2017
Real estate capital is in constant competition with other capital assets due to its different and complementary economic functions such as direct use, productive investment, and speculative investment. These features and the resulting opportunities cannot be easily deduced from direct observation of the real estate markets, so some further insights need to be carried out in order to highlight the relationship between prices, rents and performances. This study aims at providing a multifaceted perspective of a specific urban real estate market to overcome the difficulties arising from opacities and informative asymmetries that hinder the decision of investors, by facilitating the comparison o…
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…
An ANN model to correlate roughness and structural performance in asphalt pavements
2017
Abstract In this paper, using a large database from the Long Term Pavement Performance program, the authors developed an Artificial Neural Network (ANN) to estimate the structural performance of asphalt pavements from roughness data. Considering advantages of modern high-performance survey devices in the acquisition of road pavement functional parameters, it would be of practical significance if the structural state of a pavement could be estimated from its functional conditions. To differentiate various road section conditions, several significant input parameters, related to traffic, weather, and structural aspects, have been included in the analysis. The results are very interesting and …
Development of Eco-Friendly and Self-Cleaning Lime-Pozzolan Plasters for Bio-Construction and Cultural Heritage
2020
Summarization: Nowadays, the design and use of multi-functional mortars has increased significantly, with interesting applications in the green building and cultural heritage conservation sectors. A key point for a correct adoption of these innovative materials is their behavior along time and their resistance to the weathering. The objective of this project was to define the performance and durability of innovative mortars, in order to use them correctly and to avoid irreparable damage over time. For the development of this project, lime–metakaolin and hydraulic lime–metakaolin based mortars (hereinafter called A, B), as well as A and B with the addition of nano-TiO2 and perlite (hereinaft…
Artificial Neural Networks to assess energy and environmental performance of buildings: An Italian case study
2019
Abstract Approximately 40% of the European energy consumption and a large proportion of environmental impacts are related to the building sector. However, the selection of adequate and correct designs can provide considerable energy savings and reduce environmental impacts. To achieve this objective, a simultaneous energy and environmental assessment of a building's life cycle is necessary. To date, the resolution of this complex problem is entrusted to numerous software and calculation algorithms that are often complex to use. They involve long diagnosis phases and are characterised by the lack of a common language. Despite the efforts by the scientific community in the building sector, th…
Application of optimized artificial intelligence algorithm to evaluate the heating energy demand of non-residential buildings at European level
2019
Abstract A reliable preliminary forecast of heating energy demand of a building by using a detailed dynamic simulation software typically requires an in-depth knowledge of the thermal balance, several input data and a very skilled user. The authors will describe how to use Artificial Neural Networks to predict the demand for thermal energy linked to the winter climatization of non-residential buildings. To train the neural network it was necessary to develop an accurate energy database that represents the basis of the training of a specific Artificial Neural Networks. Data came from detailed dynamic simulations performed in the TRNSYS environment. The models were built according to the stan…