Italian territory is currently divided into climatic zones on the basis of a winter Climatic Severity Index, the Heating Degree Days, thanks to which bound values for primary energy need of buildings have been fixed (according to the European Directive 2002/91/CE). About summer air conditioning, any zoning of Italian territory does not exist yet, because of the lack of a summer Climatic Severity Index definition: as a consequence, a given building cannot be classified on the basis of its energy need and geographical position. The definition of a Climatic Severity Index for the summer season is more complex with respect to the winter case: indeed, given the combined effect of the different climatic variables, the analysis of the energy performance of a building, is more complex and must be carried out at least on an hourly scale. Thanks to a cluster analysis 20 Italian representative towns, characterized by different climatic profiles, have been selected. Then, some benchmark buildings have been considered and, through a dynamic simulation software, their cooling energy need have been assessed. The analysis of the results has highlighted the opportunity to express the energy need as a function of the observed climatic variables: this way, an index able to subdivide the Italian territory into summer climatic zones has been derived.
|Pages (from-to)||155 - 162|
|Number of pages||8|
|Journal||International Journal of Heat and Technology|
|Publication status||Published - 2010|
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes
Terrinoni, L., Signoretti, P., Iatauro, D., Romeo, C., & Federici, A. (2010). Definition, analysis and application of a Climatic Severity Index aimed at zoning the Italian territory for summer air conditioning of buildings. International Journal of Heat and Technology, 28(2), 155 - 162.