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On the Establishment of Climatic Zones in Europe with Regard to the Energy Performance of Buildings

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Author(s): Katerina Tsikaloudaki | Kostas Laskos | Dimitrios Bikas

Journal: Energies
ISSN 1996-1073

Volume: 5;
Issue: 1;
Start page: 32;
Date: 2011;
Original page

Keywords: heating degree days | cooling degree days | energy performance

ABSTRACT
Nowadays, subjects such as eco-design requirements, product rating or code compliance with regard to energy efficiency are expanding towards a pan-European level. This leads to the necessity of defining zones within the European region, which share common climatic characteristics and will further facilitate the quick estimation of building energy performance. Towards this direction stands the current paper; it presents an approach for defining climatic zones in Europe on the basis of the amount of heating and cooling degree days. It is applied for the climate classification of selected European cities and is compared with the conventional scheme based solely on heating degree days. Since the approach is orientated mainly towards the assessment of building energy performance, its outcomes are evaluated with regard to the actual heating and cooling energy needs of a reference building unit with office use located in representative cities of the proposed climatic zones and facing the four cardinal orientations. The classification of climatic zones on the basis of both heating and cooling degree days leads to more realistic results, since nowadays cooling needs form a substantial part of the energy balance of the building, especially in the Mediterranean regions.
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