Search results for "Design"
showing 10 items of 5885 documents
Simplified thermal analysis of naturally ventilated dwellings
1991
Abstract A simplified comprehensive methodology for thermal comfort prediction in a naturally crossventilated room is described. The methodology mainly consists of the following three steps: • - analysis of the dynamic thermal behaviour of the given room, by means of the admittance procedure; • - evaluation of the air flows rates and their velocities in the room, by means of a new simplified method; • - thermal comfort prediction by means of the Fanger's theory. The results obtained appear satisfactory and the simplified methodology makes itself a useful tool for the identification of appropriate choices at the early stages of the design process, regarding naturally ventilated buildings. Th…
Introduzione - Criteri innovativi per la progettazione e produzione ecocompatibile (Eco-design) di prodotti che consumano energia (EuP) nel settore c…
2013
Criteri innovativi per la progettazione e produzione eco-compatibile (eco-design) di prodotti che consumano energia (EuP) nel settore civile d'utenza
2013
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…
Analysis of Load Match in Nearly Zero Energy Buildings
2018
The concept of load matching refers to the degree of agreement or disagreement of the on-site generation with the building load profiles: it can be increased and optimised with modifications on both the energy demand and generation. In this context, the paper presents the load match analysis of a case study: a modular housing construction (it has an area of 45 m 2 and S/V ratio equal to 2.75 m −1 ) built in Messina (Italy). Moreover, in order to optimize the design of the next test module to be built, a parametric analysis was performed considering different scenarios on the generation side, to explore the effectiveness of the solutions sets used in current design and plan different solutio…
Life Cycle Assessment and eco-design of building materials: the case study of a Sicilian cement plaster
2015
Buildings in the European Union (EU) account for the largest share of the total EU final energy consumption (42%), and greenhouse gas emissions (35%). Therefore, the reduction of energy use, the development of quality-oriented processes and the improvement of energy performance in the building sector are important measures needed to reduce greenhouse gas emissions and the energy dependency of the European Union from foreign countries. In this context, it is necessary to develop sustainable building products, with low energy and environmental impacts during their life cycle, from the extraction of raw material to the manufacturing, use and end-of-life. The main goal of the study is to define…
STUDIO DI UNA FRIZIONE MAGNETOREOLOGICA PER AUTOVEICOLI
2013
Dopo un’accurata ricerca bibliografica sui fluidi magnetoreologici, il loro comportamento ed impiego, si è passati alla progettazione di una frizione magnetoreologica per autoveicoli. Considerando le caratteristiche di coppia trasmessa e potenza, il dispositivo è stato dimensionato tenendo presente i vincoli di ingombro del veicolo preso in esame. Sottoponendo il dispositivo ad analisi magnetostatica agli elementi finiti, si è determinato l’andamento delle linee di flusso del campo magnetico nel meato di fluido e nelle zone di maggior interesse, calcolando la coppia teoricamente trasmessa dall’innesto.È stato anche eseguito il confronto delle prestazionifra una frizione MR ed una frizione t…
STRUCTURAL DETERMINISTIC MODELING DESIGN AND FABRICATION OF ELECTROSPUN SCAFFOLDS FOR SOFT TISSUE ENGINEERING
2011
The research fields of tissue engineering, biomechanics and regenerative medicine continue to evolve in response to the ever growing need for tissue replacement options. These fields aim to restore, maintain, or improve tissue or whole organ function. This doctoral studies focus on the development and experimental validation of a structural deterministic modeling strategy to: A) guide tissue engineering scaffold design, B) provide a better understanding of cellular mechanical and metabolic response to local micro-structural deformations. Targeted clinical application was the pulmonary heart valve. Electrospinning was selected as the optimal platform technology to implement, validate and tes…
A telescopic wind tower with reduced environmental impact - The Perima Project
2019
A prototype of a telescopic pole for wind energy production with low environmental impact and its lifting system for a 60 to 250 kW turbine and a height of 30 m have been designed and manufactured. A telescopic tower, which is raised and lowered by automation or by remote control, allows to differentiate the presence of the generator within the landscape over time. Research target: the optimal design of the telescopic coupling, the design for maintaining the preload and for the rotational decoupling, the optimization of the pairs of sleeves, the design of the pegs and the bushes of the jack-up lifting system. All the components of the wind tower have been preliminary analyzed through FEM st…
Progettazione e Confronto di Barche a Vela Mediante Analisi CFD
2010
Le simulazioni fluidodinamiche computazionali (CFD) forniscono uno strumento particolarmente utile alla valutazione delle caratteristiche di barche a vela. La possibilità di studiare differenti carene e piani velici, ha permesso di mettere a punto geometrie che senza l’ausilio di queste tecniche innovative sarebbero apparse difficilmente raggiungibili. Nel presente lavoro sono state messe a confronto due barche a vela progettate e costruite per partecipare alle regate di Mille e una Vela per l’Università – manifestazione didattico/sportiva organizzata dall’Università Roma Tre.