Search results for "Smart"
showing 10 items of 938 documents
Green roofs for smart cities: experimental determination of the “fractional vegetation coverage” of six vegetated species
2015
Towards a de-carbonization of European countries, green roofs are becoming popular, due not only to aesthetic reasons but also to energy and environmental issues. Indeed, especially in summer periods, the building cooling demand might be sensibly cut thanks to such passive components often chosen for planning smart cities. To properly model the energy performances of buildings equipped with these components, a particular attention must be paid to radiative exchanges occurring among soil surface, leaves and outdoor surroundings. These thermal exchanges depend on parameters, like the “fractional vegetation coverage” whose literature data do not seem particularly suitable for the simulation ne…
Luminescent Solar Concentrator (LSC): principio di funzionamento e fasi preliminari dell’analisi LCA applicata alla Smart Window-LSC
2019
Una delle tecnologie più promettenti nel panorama dei sistemi fotovoltaici integrati negli edifici è quella dei concentratori solari luminescenti (LSC - Luminescent Solar Concentrator). La peculiarità di questi dispositivi risiede nel fatto che possono essere installati in zone dell’edificio difficilmente sfruttabili da altre tecnologie fotovoltaiche, in particolare in sostituzione di aperture quali lucernari o finestre, grazie alla loro caratteristica di essere semi-trasparenti e di funzionare sia con radiazione solare diretta che diffusa. L’obiettivo del presente lavoro è stato ricostruire i percorsi di produzione dei principali componenti del pannello LSC, in modo da ottenere un parziale…
Energia e sviluppo locale: il modello “a rete” della coalizione di Comuni “Monti Sicani e Valle del Platani”
2017
Il lavoro tratta il tema di "Energia e sviluppo locale", con focus sul modello “a rete” della coalizione di Comuni “Monti Sicani e Valle del Platani”
STRUMENTI E PRATICHE DI PIANIFICAZIONE ENERGETICA VERSO LE SMART CITIES - Proposta di Strumenti Regolamentari, Metodologici e Considerazioni Progettu…
Il termine Smart Cities è ormai di uso comune e diffuso nei paesi sviluppati (America ed Europa in primis) quanto nei Paesi emergenti, Asia (Cina, India) ed Emirati Arabi. Nel contesto internazionale, risulta però difficile individuare una definizione univoca di ciò che si intende per “smart city”. La letteratura scientifica a riguardo, molto prolifica negli ultimi anni, evidenzia il carattere tecnologico/digitale e al contempo sociale di tale aggettivo, cadendo spesso nell’identificazione di “definizioni etichetta” prive di un reale significato. La tesi espone dettagliatamente i punti cardine che hanno guidato la nascita del concetto di smart city e che, superando le mode, rimangono centra…
A smart lighting network design for urban rehabilitation and environmental sustainability: A case study of Bagheria
2014
The concept of smart cities, smart services, and smart grids has gained wide international attention in the last few years. The case study, Bagheria, Italy, is an urban area where many old buildings from the 18th century exist, hidden by the chaotic growth of the new city.Thus, the present paper addresses a project for lighting a town in Italy that aims to reduce energy consumption by using efficient lamps and control systems, to make the network useful for many purposes by integrating the ICT and to provide a new identity to the older part of the city by using new technologies and design concepts. A brand new multifunctional modular fixture called the StairLight is designed. The results sh…
Urban Waste As Resource For Sustainable Environment
2013
The emerging model of waste disposal, develops an integrated approach based on waste reduction, selection, recycling, energy recovery and residual use of landfill. Here we discuss the fundamentals of a proper planning of waste disposal system, specially the thermal recovery, the integration and the methodological approach, either from the environmental and economic point of view. The growing demand for energy, the resulting environmental problems due to satisfy the demand for energy and the complex-economic system, necessitate the study of new technologies such as energy from municipal solid waste (MSW) obtaining as a result of decrease huge mass of solid waste to sanitary landifill and emi…
The Lean Urban Policies’ Design A values-centered method for sustainable urban planning.
In these past years, the necessity and urgency has emerged for policies tied to an alternate development to be efficiently applied, and not limited to single operations. The policies must be defined by a clear and effective method of action. Starting by investigating what are the relationship among human being, built environment and natural sources, in fact, we think it is possible to enrich the sustainable urban planning policies with new contents and possibly, new tools. By describing the frame, the objective is to define the most effective method, to be able to convey an effective project action and governance for the territory, to achieve predefined social and energy based objectives. …
Towards Positive Energy Districts: Energy Renovation of a Mediterranean District and Activation of Energy Flexibility
2023
The paper presents the analysis of energy retrofitting, integration of renewable energy and activation of energy flexibility in a cluster of buildings in the surroundings of a port on the Mediterranean Sea in Southern Italy, with the aim of checking the potential for it to achieve the status of positive energy district (PED). The objective of this study is to improve the contemporaneity between local energy generation and energy demand and reduce CO2eq emissions by considering signals that reflect the environmental variability of the electricity grid, through flexibility solutions applied to the HVAC system. The proposed scenarios are based on the dynamic simulation of the district and anal…
CFRP STRUCTURAL CAPACITORS: EFFECT OF DAMAGE AND MECHANICAL LOAD ON CAPACITANCE
2013
Aim of this work is to study the effect of mechanical load and damages, on the performance of structural capacitors, made by CFRP composite laminates with a PET dielectric film (treated with sodium hydroxide) inserted at the laminate middle-plane. Such capacitors have been characterized by ILSS and tensile tests and the properties so estimated were compared to those of the simple CFRP. By measuring the capacitance before mechanical loading, under loading and after unloading, it has been observed that, due to the damage of the CFRP layers, proved also by proper fractographic analysis, at high strain level the capacitance decreases although it exhibits a complete recovery after unloading. Suc…
ANALISI DEL POSSIBILE IMPIEGO DI CAVI HVDC PER LO SMART STORAGE
2018
L’idea alla base dell’attività di ricerca è quella di investigarela possibilità di utilizzare l’energia che,durante il normale servizio,è immagazzinata nei cavi dei sistemi di trasmissione ad alta tensione in corrente continua (HVDC), quando si verifichino scenari tecnico-economici favorevoli tali da giustificare,o per necessità o per scelta, la messa fuori servizio dei cavi stessi.