Suchergebnisse

Buildings in Europe consume 40% of total energy consumption and not less than 65% of the total electricity consumption. This work reports the first results of a research developed at the ENEA Casaccia Center, under the Electricity System Research Program (RDS), funded by the Ministry of Economic Development. The experiments were carried out on a demonstration building on which the necessary structures for research activities were built. Among the cultivated vegetable essences, the best results have been obtained with the Parthenocissus varieties, which have reached a leaf coverage of over 3.5 m2 and with the Vitis vinifera varieties with a leaf surface of over 3 m2. From an energy point of view, the data collected, although still preliminary and not definitive, the collected data showed a significant reduction in the surface temperature of the greened facade by over 14°C compared to the non-vegetated areas of the demonstration building. Taking into account the fact that the plant systems are an increasingly important element to improve energy efficiency and environmental sustainability of buildings, further research and experiments are necessary for a more detailed assessment of the biological and agronomic parameters that characterize plant systems when grown on the building to define their influence on the surface temperature of the vegetated facades of buildings and on the energy flows entering the building.

The agriculture and agro-industry system, in the overall definition of agricultural production, processing industry, distribution and services, is characterized by a strong demand for innovation to satisfy the continuous and changing needs of consumers. This situation, on the one hand, is determined by the needs of companies to respond effectively to market globalization, on the other hand, however, it has strongly increased energy consumption and the environmental impacts of the sector. This work examines the energy consumption of the agri-food supply chain and illustrates the most significant technologies and production processes for sustainable energy and environmental modernization.

The greenhouse cultivation system in European countries represents one of the most energy-intensive sectors in the agriculture and agro-industry sector. In this regard, renewable energies represent an innovative solution to reduce energy costs and environmental impacts. Both, the energy demands and the economic aspects are analyzed with regard to the main energy users, i.e.: heating and cooling systems, lighting and pumping for irrigation. This work considers the use of solar photovoltaic and thermal energy. The use of semi-closed greenhouses is also considered.

The need for energy-efficient buildings has emerged since the onset of the first energy crises in the 1970s. It's in this decade that the concepts of sustainable development and energy saving have been introduced in the construction sector. Currently, the greatest energy saving potential for buildings does not lie in new buildings, but in the energy redevelopment of existing buildings. In order to promote interventions for building restoration, which are often costly and not economically convenient, Italian legislation has made a series of economic incentives available to the sector. This work reviews the main incentive systems for the energy requalification of buildings.