Search results for "IMPIANTI"
showing 10 items of 797 documents
Una variante del problema dell'ago di Buffon e verifica con il metodo Monte Carlo
2009
Analisi degli infortuni nel settore della sanità in Sicilia attraverso i flussi informtivi INAIL REGIONI: limiti e scenari di miglioramento dei dati
2011
An analysis on the injury events occurred to the employees in Sicilian hospitals from 2006 to 2008 was carried out, thanks to data filed in the INAL database “Flussi Informativi INAIL ISPESL REGIONI”. A frequency distribution of accidents and an investigation of injury events modality of occurrence have been performed according to ESAW codification. Data limitation and critical aspects have been highlighted in order to propose development in data management process.
CFD simulation of a mixing-sensitive reaction in unbaffled vessels
2008
Stirred tanks are widely used in the process industry, often to carry out complex chemical reactions. In many of such cases the perfect mixing hypothesis is not applicable for modelling purposes, and more detailed modelling approaches are required in order to accurately describe the reactor behaviour. In this work a fully predictive modelling approach, based on Computational Fluid Dynamics, is developed. Model predictions are compared with original experimental data obtained in un unbaffled stirred vessel with a parallel-competitive, mixing sensitive reaction scheme. Notably, satisfactory results are obtained at all injection rates with no recourse to micro-mixing model, thus confirming the…
Feed-back sull'adozione del marchio Ecolabel di qualità ambientale dell'UE per le strutture turistico-ricettive.
2011
Supercritical Antisolvent Extraction of Bioactive Compounds from Mango by-Products
2013
Decision models enabling the supply chain optimization
2013
Passive safety systems in view of sustainable development
2010
High-Performance Lead-Acid Batteries Enabled by Pb and PbO2 Nanostructured Electrodes: Effect of Operating Temperature
2021
Lead-acid batteries are now widely used for energy storage, as result of an established and reliable technology. In the last decade, several studies have been carried out to improve the performance of this type of batteries, with the main objective to replace the conventional plates with innovative electrodes with improved stability, increased capacity and a larger active surface. Such studies ultimately aim to improve the kinetics of electrochemical conversion reactions at the electrode-solution interface and to guarantee a good electrical continuity during the repeated charge/discharge cycles. To achieve these objectives, our contribution focuses on the employment of nanostructured electr…
Computational study of the thermal-hydraulic behaviour of the DEMO Divertor cooling system
Gas-liquid-solid operation of a Long Draft Tube Self-ingesting Reactor (LDTSR)
2008
Gas-liquid stirred vessels are widely employed to carry out chemical reactions involving a gas reagent and a liquid phase. The usual way for introducing the gas stream into the liquid phase is through suitable distributors placed below the impeller. An interesting alternative is that of using “self ingesting” vessels where the headspace gas phase is injected and dispersed into the vessel through suitable surface vortices. In this work the performance of a Long Draft Tube Self-ingesting Reactor dealing with gas-liquid-solid systems, is investigated. Preliminary experimental results on the effectiveness of this contactor for particle suspension and gas-liquid mass transfer performance in pres…