Search results for "Generation"
showing 10 items of 3050 documents
Renewed Sicilian Urban Landscapes. Transformation, Regeneration and Reuse of degraded areas
2020
In this study, through a multidisciplinary approach, some degraded Sicilian urban landscapes, today renewed thanks to urban regeneration interventions, will be ana-lyzed. Cities that look to the future and that react posi-tively to the current ecological and economic crisis. Urban centers that – through collective participation, the support of organizations, cultural associations and the sensitivity of local governments – are investing heavily in the theme of urban regeneration and re-cycling.
Renewed Sicilian Urban Landscapes.Transformation, Regeneration and Reuse of degraded areas
2020
The cities of the future must aim at improving the quality of living through processes of transformation and reuse of degraded, abandoned or underused urban areas. The cities of the future must generate renewed urban landscapes through recovery actions, creative reuse of abandonment, urban recycling, as new and powerful revitalizing forces in urban centers. The cities of the future must be more sustainable, more responsible but also more innovative capable of rethinking, reinventing, redesigning the forms of the settlement, mending relations with the environment and the landscape, reacting to scenarios "contaminated" by human hands and, from today, also from the covid-19 virus. The cities o…
Vivibilità e creatività delle periferie
2020
Consumare meno suolo significa riscoprire la vita in città, riqualificando ambiti degradati, consolidando le piccole centralità mediante spazi pubblici e funzioni aggreganti, sostenendo e incentivando la “ricucitura” di architetture dismesse e parti di città poco vivibili. La “memoria” identitaria e la dimensione ecologico-paesaggistica in chiave creativa delle città possono, e devono, divenire un volano per innescare vivibilità soprattutto nei contesti urbani difficili. Partendo dal concetto di milieu, un approccio creativo bottom up può costituire la base operativa per una vision che, ancor prima di avere una dimensione urbana, ne abbia una “umana”. Nell’obiettivo ultimo di affrontare tem…
Urban Collage
2018
Il contributo propone una riflessione progettuale, elaborata durante il workshop internazionale “Hong Kong – Palermo. Fluid cities”, sulla rigenerazione del waterfront centrale della città di Palermo, approfondendo l’area dell’antico quartiere della Kalsa. Come una membrana porosa, tramite osmosi, il progetto contaminerà la città generando nuovi cluster culturali: il ‘Cultural Hub’ (l’epicentro); il ‘Food Cultural District’ (la Vucciria); il ‘Living Lab/Residenza per artisti’ (l’attuale Palazzo delle Finanze).
I luoghi periferici in cui si abilita intelligenza collettiva
2019
Nelle periferie urbane in cui coesistono ampi margini alla modificazione, un surplus di spazi interstiziali e marginali, negli ultimi anni si sta dispiegando la proliferazione di esperienze che aprono il campo a un diverso modo di trasformare le città, in una sorta di resilienza locale alla crisi e al conseguente vuoto di welfare sociale. Uno sguardo alle pratiche in corso sembra indicare una tendenza a spostare l'asset di sviluppo dalla patrimonializzazione immobiliare ad una economia della conoscenza, in cui i beni dismessi si offrano come piattaforme abilitanti dell'azione collettiva, dispositivi spaziali in cui incanalare l'innovazione attraverso il riciclo. Se il Piano Periferie promos…
OPTIMIZATION OF COGENERATION PLANT FOR APPLICATIONS IN FOOD INDUSTRY
2013
Cogeneration systems represent an effective solution for optimizing energy performance of users with contemporary thermal and electrical energy demand. An energy audit of an industrial pasta factory equipped with a cogeneration system natural gas fuelled has carried out along last two years. This CHP plant, with a 650 kWe capacity, currently covers a relevant fraction of the electric and high-temperature heat loads during peak hours, while it is switched off during off-peak hours because of the much lower electricity price. Heat content of flue gases is recovered by two cascaded gas-diathermic oil and diathermic oil- water heat exchangers; the superheated water obtained is then supplied to …
USER- AND CONTEXT-ORIENTED CRITERIA FOR ASSESMENT OF HIGH EFFICIENCY POLYGENERATION PLANTS FOR BUILDINGS APPLICATIONS
2013
The eligibility criteria adopted to assess polygeneration plants as “highly efficient” can play a determinant role in favouring or discouraging the market growth of polygeneration systems, especially for buildings applications where economic viability is often more difficult to achieve. Basing on the current European framework, in this paper the opportunity to adopt user- and context-oriented criteria is discussed. After having identified three buildings with different uses (a large hotel, a hospital and an office building), the optimal layout and operation strategy of a polygeneration plant serving each building is determined; then, ex-post processing of economic and energetic results is u…
Optimization of polygeneration plants and μ-grids for civil applications
2010
The problem of combined energy production and distribution of warm and cold fluids is very complex because it includes two possible configurations, the small single unit for individual buildings and the large plant integrated with district heating networks. Dealing with such a complex problem, involving a very large number of variables, requires efficient algorithms and resolution techniques. The present study illustrates a MILP approach to the optimization of synthesis, design and operation for CHCP-based μ-grids including thermal energy storages. The proposed approach develops a method for designing and optimizing district energy systems, starting with the information available for the di…
Analisi degli effetti delle opzioni tariffarie regionali sull'ottimizzazione di μ-grids energetiche alimentate da impianti poligenerativi
2011
L'ottimizzazione di sistemi energetici complessi per la produzione e la distribuzione di fluidi caldi e freddi per utenti civili è un problema molto complesso; due possibili configurazioni possono essere prese in considerazione, ovvero le piccole unità singole per singoli edifici ed i grandi impianti integrati con reti di teleriscaldamento. Affrontare un problema così complesso, che coinvolge un numero molto elevato di variabili, richiede algoritmi e tecniche di risoluzione efficienti. La ricerca svolta ha consentito di sviluppare nuovi metodi di mathematical programming, ed in particolare tecniche di Mixed Integer Linear Programming (MILP), per quanto concerne l’ottimizzazione di sistemi p…
Environmental assessment of 2030 electricity generation scenarios in Sicily: An integrated approach
2020
Abstract This paper deals with the environmental assessment of two electricity scenarios in Sicily, for 2030, characterized by a high exploitation of renewable energy sources in order to quantify the potential contribution of the local strategies in the achievement of the European climate policies and the potential improvement in the future electricity mix, compared to the current one (2014). In order to match these goals, authors integrate the Life Cycle Assessment with a scenario analysis. The future electricity mix scenarios, characterized by a share of renewables (57% for 2030-BS scenario and 51% for 2030-DS scenario) show a reduction of the greenhouse gases emissions per kWh of electri…