Ventilated active façades to reduce heating demand in office buildings. The case of Spain
DOI:
https://doi.org/10.3989/ic.11.099Keywords:
Energy efficiency, heating strategies, ventilated active façade, office buildingsAbstract
This paper analyses the energy efficiency of a Ventilated Active Façade –VAF– applied to office buildings in Spain to reduce heating demand. This façade system consists of an outer layer element of 2 mm galvanized steel panels and a 3 cm air cavity where the ventilation air is preheated in winter and exhausted in summer. After defining 8 typical office typologies in Spain, 192 study cases are obtained where different parameters like the percentage of glass in façade, the orientation and the climatic zone of the buildings are considered. The energy demand of all these study cases is obtained using the official simulation tool of the Spanish Technical Building Regulation – CTE called LIDER. The results, in terms of reduction of heating demand, are presented in comparison with the minimum energetic requirements of CTE.
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