Search results for "IMPIANTI"
showing 10 items of 797 documents
Esperimenti sulle prestazioni di fluidi sostitutivi dell’R22 negli impianti frigoriferi
2008
PROGETTO FACTOR 20 Sostenibilità energetico-ambientale nei comuni siciliani
2013
Il progetto LIFE08 ENV/IT/000430 - Factor 20 è finalizzato alla definizione e promozione di un set di strumenti di supporto alla pianificazione energetica regionale e locale. il fine è quello di perseguire gli obiettivi del Pacchetto Clima Energia 20-20-20: Ridurre del 20% l'emissione di gas clima-alteranti prodotti rispetto ai livelli del 1990 (superando largamente quanto previsto dal Protocollo di Kyoto) Soddisfare i consumi energetici con almeno il 20% di energia prodotta da fonte rinnovabile Migliorare l’efficienza energetica nell’Unione Europea riducendo del 20% il fabbisogno di energia primaria. La ricerca svolta dal Dipartimento dell'Energia, Ingegneria dell'informazione e dei …
Atti del 63° Congresso Nazionale ATI - "Energia per lo sviluppo sostenibile". Polididattico dell'Università degli Studi di Palermo. Palermo 23-26 Set…
2008
Metodologie di Analisi energetica e Studio di fattibilità di un impianto di produzione combinata di caldo, freddo ed energia elettrica con Sistemi MC…
2004
NET ZERO ENERGY BUILDINGS: AN ITALIAN CASE STUDY. ANALYSIS OF THE ENERGY BALANCE AND RETROFIT HYPOTHESIS IN ORDER TO REACH THE NET ZERO ENERGY TARGET.
2014
In the last years the concept of Net Zero Energy Building (NZEB) has been developing and spreading in the scientific community. The work presented in this thesis has been largely developed in the context of the International Energy Agency (IEA) joint Programme Solar Heating and Cooling (SHC) Task40 and Energy Conservation in Buildings and Community Systems (ECBCS) Annex52: Towards Net Zero Energy Solar Buildings. It is known that the energy consumption in Europe for residential and commercial buildings is around 40 % of the total production. It is then extremely important to optimize both the implementation of energy efficiency measures and the usage of renewable resources that can be harve…
Experimental evaluation of through-the-thickness stress distribution in transverse crack tension test samples
2015
Transverse Crack Tension (TCT) samples represent an alternative to End Notched Flexure configurations for the characterization of pure mode II fracture toughness of Fibre Reinforced Polymer composites. TCT is supposed to reproduce a pure Mode II failure mechanism while avoiding the frictional energy dissipation between the flanks of a starter crack. The TCT geometry is that of a unidirectional tensile sample where a number of embedded plies, centered on the middle plane, are cut in the transverse fibres direction. The tensile loading should then activate four symmetric fronts of mode II delamination from the transverse cut tips. The present work describes the implementation of two full fiel…
DEMATEL-based consensual selection of suitable maintenance KPIs
2018
This paper aims to highlight the fundamental role of Multi-Criteria Decision-Making (MCDM) tools to perform efficiently in such a complex field as industrial maintenance. Typically, a strategic plan of maintenance interventions has to be first implemented and then continuously checked by maintenance management. Given the importance to monitor the quality and suitability of the undertaken choices, the Decision-Making Trial and Evaluation Laboratory (DEMATEL) method is herein suggested to evaluate some of the most important maintenance Key Performance Indicators (KPIs) on the basis of their mutual relationships. DEMATEL is particularly adequate to take into account interdependencies existing …
MODELLI DATA-DRIVEN VALORIZZAZIONE DELLE INFORMAZIONI DIGITALI A SUPPORTO DEI PROCESSI DECISIONALI DELLA SUPPLY CHAIN
2023
Life cycle analysis of innovative building materials based on circular coffee ground supply chain
2022
The construction sector is widely recognized as one of the most polluting mainly due to its intensive exploitation of natural resources and large energy consumption to produce traditional building materials. In the last years, alternative building materials have been developed with the aim to reduce the environmental burden of this sector. In particular, the use of geopolymer mortars as alternative cementitious materials is gaining increasing acceptance among scientists. Numerous laboratory studies demonstrate their suitability for construction applications, highlighting the potential environmental benefits that can be obtained from their large-scale production. This study aims to perform a…
A hierarchical framework for the measurement of maintenance efficacy and efficiency using performance indicators
2014
Maintenance plays an important role in achieving the organizational goals so that the measurement of its effectiveness and efficiency has become an essential element of industrial strategy. In literature several Maintenance Key Performance Indicators (MKPIs) are proposed but none structured approach is suggested to select the best set of MKPIs able to synthetically describe a specific maintenance context. The paper proposes a structured methodology for the maintenance performance measurement by means of MKPIs. Firstly, a multi-level hierarchical framework able to synthesize the most meaningful perspectives affecting the performance of the maintenance process is designed. Successively, some …