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In questo documento verranno illustrate le attività e i risultati che hanno portato alla definizione dei test funzionali per la valutazione delle performance, sia a livello di simulazione al calcolatore sia a livello di dimostratore. In particolare, protocolli di test proposti verteranno sui determinati macro-criteri di valutazione che riportiamo di seguito: oInteroperabilità dei dispositivi coinvolti per l'energy management oPrestazioni funzionali ed integrazione dei diversi moduli dell'energy manager e degli algoritmi sviluppati oRisparmio energetico e livello di comfort globale per l'utente oUtilizzabilità e fruibilità del manager oRispetto delle certificazioni LEEDv4, da applicare all'edificio di cui fanno parte i dispositivi (sorgenti energetiche costituite dalle reti di fornitura di operatori nazionali di gas e energia elettrica eventuali fonti rinnovabili come pannelli solari o micro CHP, sistemi di storage e tutti i tipi di carichi) e l'energy manager Inoltre, per ogni criterio verranno identificati dei criteri più specifici e verranno stabiliti degli adeguati livelli di soddisfacimento, sulla base dei quali verranno indicati i test funzionali da eseguire secondo una determinata sequenza operativa.

The paper presents the objectives of the European Construction Technology Platform for the development of innovative materials, such as: reduction of environmental impact of production and demolition of construction materials; 30% reduction in production times and costs through the introduction of innovative, efficient and predictable processes; increase of energy efficiency of buildings through the use of innovative materials designed for specific applications; reduction in lifecycle costs of construction materials; improve in environmental comfort (health, hygiene, safe, aesthetics); development of new multifunctional materials with high knowledge content specifically designed according to customers' requirements.

Le proprietà energetiche di un’onda sonora piana monocromatica 1-D risultante dalla sovrapposizione delle due componenti progressiva e regressiva, sono qui visualizzate sinotticamente al fine di consentire una rapida e completa analisi del fenomeno della riflessione. Le grandezze visualizzate, mutuate dall’analogia con la teoria dei circuiti elettrici AC, sono state rappresentate in funzione della coordinata spaziale e riguardano in particolare le parti reali e immaginarie dell’ammettenza e dell’impedenza acustica. Queste grandezze, calcolate su un intervallo di due lunghezze d’onda sono confrontate con l’andamento spaziale della pressione di radiazione ottenendo così la visualizzazione energetica completa dell’onda. La rappresentazione grafica qui riportata è stata programmata in codice Matlab e costituirà la base per la visualizzazione di fenomeni ben più complicati, che caratterizzano i processi di trasferimento dell’energia sonora in campi 2-D e 3-D.

The actual panorama of fishing industry is very problematic due to the contemporary action of many factors. Overfishing and the actual economic crisis affect revenues, while the obsolescence of existing fishing vessels which causes high fuel consumption, combined with the continuous rise up of the fuel price increase management costs. So that, for many fishermen there is no profitability at the moment. Due to the impossibility to have influence on the market, fishermen can only try to reduce management costs of their activities, mainly related to the fuel cost and consumption. Actually there is no possibility to replace fishing fleets with new and more efficient constructions due to last European Commission regulations. Fishermen must reduce fuel consumption only by reducing fishing vessels energy usage. The total amount of energy used by a fishing vessel will vary depend on the size (and engineering) of the vessel, weather conditions, type and size of fishing gears, location, skill and knowledge. Furthermore, similar fishing vessels could have different energy usage, due to different engineering solutions such as different hull design and propulsion systems, different propeller type and size, different techniques and tactics. To achieve energy saving on existing fishing vessels a methodological approach is necessary. First of all, it is necessary to define the energy profile of the vessel. Once the energy profile is defined it is possible to state how energy (and the fuel) is used and heavy energy users can be identified. For these energy users technological improvements can be discussed and solution proposed; these solutions must be evaluated also from an economical point of view with a business plan, taking into account economical savings and investment costs. The energetic profile is defined trough an Energy Audit, an engineering test for the monitoring of energy usage during normal fishing activities. An Energy Audit template was conceived and applied to some fishing vessels. The main goal is to define the energetic profiles of the Center Adriatic fishing fleet as a baseline for further analysis, aimed mainly to find and evaluate improvements.

non c'è abstract

Messa a punto dal CNR una particolare tecnica per la produzione di biometano

The Macrosite "IT08 Subalpine Lakes" includes a group of lakes located at the southern border of the Alps. The lake typologies are represented by large and deep lakes (Orta, Garda, Maggiore, Como and Iseo) and by a lake of smaller size and shallow depth (Candia). Topics common to all the research sites include the impact of eutrophication and climate change, the composition, structure and dynamics of biological communities (plankton, necton and littoral communities), trophic webs, paleolimnology, ecotoxicology, ecological status and remote sensing. Scientific investigations are supported by a wide availability of technological infrastructures and laboratories located in the reference institutions, and by a wide range of technological equipment for fieldwork. These facilities, funded within the individual institutes involved in the research, have allowed not only to maintain, but also to update the classical approaches used in scientific monitoring, while opening up new research fields (especially molecular ecology, microbial ecology, metabolomic profiling, antibiotic resistance genes, high frequency monitoring by sensor technology). Over the last decade, the continuity and regularity of investigations have been facilitated by the availability of both external and ordinary funds. The variety of research activities carried out on the IT08 macrosite is evidenced by the publication of numerous scientific papers, as well as contributions (oral or poster) presented at national and international conferences, and by the presence in the mass media. In this context, the scientific monitoring is a key element of LTER research, including not only data collection (basic monitoring), but also data interpretation, modeling, and experimental manipulation, with particular attention to key groups of selected variables in order to identify the most significant environmental stressors and the degree of change at the level of ecosystems, communities, species and populations.

Experimental evaluation of the combustion characteristics of carbon-neutral, biomass-derived fuels has been carried out. Since these fuels are meant as likely replacement for CH4, a comparison was drawn with methane in the same operating conditions. Tests were performed in the high-pressure, constant-volume DHARMA reactor at Istituto Motori - CNR. The laminar burning parameters were evaluated analyzing spherical expanding flames. The flame growth was recorded by means of high-speed, high-resolution shadowgraph; image processing and stretch analysis allowed to infer the laminar burning velocity and the Markstein length for each test case. Results are presented for the combustion in air of CH4-CO2 (55-45 % vol.), H2-CO (5-95 % vol.) and a wood gasification product. All the tests were performed at 0.6 MPa and 301 K. The equivalence ratio ranged between 1.0 and the lower flammable limit. The unstretched laminar burning velocity and the Markstein length are reported for each fuel as a function of the equivalence ratio.

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