2022 - Franco Angeli
Article
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Energy performance of green façades
29-40 p.
- Green façades consist of the application of vegetation on buildings' vertical envelope. The integration of vegetation into the building fabric improves not only the aesthetic appearance, but also the energy performance of the building itself. The introduction of green façades mainly aims at a passive thermal control of buildings' for enhancing sustainability of the built environment. An experimental green façade was tested at the University of Bari, in a Mediterranean climate context. The experimental green façade was southexposed and realized with evergreen plants, following the characteristics of the indirect typology. A portion of the south wall was left bare to be used as a control for comparison. The contribution of the green façade in terms of passive climate control was particularly relevant during summer.
- Vegetation affects the boundary climatic conditions and the surface temperature. A reduction in sensible air and surface temperature of up to 2.2°C and 6.7°C, respectively, was recorded. The wall behind vegetation received 95.6% less solar radiative energy than the bare wall. These results were a direct consequence of the two main cooling mechanisms that characterize the green façade, the evapotranspiration and the shading effect. These effects affected the heat transfer reducing the energy input through the covered wall. The reduction of the incoming heat through the covered wall was read as energy saving, since it inevitably affects the building energy demand for cooling. It was found that the green façade allowed a mean daily energy saving of 1.1 MJ m2 and that 90.9% of this was obtained at daytime. These findings contribute to increasing the knowledge of energy functioning and of the real advantages provided by green façades. [Publisher's text].
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Information
ISSN: 2239-1959
KEYWORDS
- green infrastructure, building energy efficiency, energy saving, heat transfer, shading, evapotranspiration, cooling demand
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In this issue
- Editorial
- Organization of construction accounting in the process of sustainable development
- Energy performance of green façades
- Ecological human imprint : agroecosystem in Egypt analysis and perspective
- Language policy of the Republic of Kazakhstan : formation and sustainable development
- Innovative management solutions in the agro-industrial business
- Diversification in the enterprises' activities for sustainable development in the agricultural sector
- Legal regulation of access to public information on the state of use of natural resources
- Levers of state regulation for agricultural production
- Scientific and organizational principles of agricultural research in 18-19th centuries
- Government agencies in the field of sustainable agricultural development in various countries
- Analysis of the economic sectors' sustainability of the Kyrgyz Republic
- The need for direct and indirect state regulation for the sustainable development of the agro-industrial complex of Ukraine
- Economic socialization of entrepreneurship of rural territories to ensure the well-being of the population of Ukraine
- Accounting and analytical space of providing the depreciation policy of Ukrainian enterprises
- Sustainable development of the socio-economic security system of the region based on closed cycle technologies
- Semi-finished products based on protein-carbohydrate raw milk materials : economic justification of introducing in restaurants
- Management of agribusiness enterprises to ensure the sustainability of their economic activity
- Implementing the resource potential sustainability of small-scale agricultural entities in cooperative associations of Ukraine
- Risk-orientated management in the sustainable economic system of united agricultural enterprises
- Investment determinant of the sustainability of innovative technologies of energy supply in the agro-food system of Ukraine
- Problems of personnel management and labour resources in the agricultural sector of Ukraine : ways to ensure the well-being of society