INVESTIGADORES
FLORES LARSEN Silvana Elinor
artículos
Título:
Double skin glazed facades in sunny Mediterranean climates
Autor/es:
FLORES LARSEN SILVANA; RENGIFO LUIS; FILIPPÍN CELINA
Revista:
ENERGY AND BUILDINGS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 102 p. 18 - 31
ISSN:
0378-7788
Resumen:
Double skin glazed facades (DGF) are an actual worldwide trend in new and refurbished buildings, even in warm climates with high solar radiation levels as in the Middle East and in Mediterranean climates. In such climates, overheating of indoor spaces and therefore excessive energy consumption are the main problems to be faced. These issues are commonly addressed mostly by thermal simulation or experimental evaluations on small prototypes. However, measurements on real-scale buildings with DGFs are very unusual. This information is crucial to understand and validate the predictions of the thermal behavior of the DGF technology. In this paper, thermal measurements were carried out in an unoccupied office building with a West DGF placed in the Northwest region of Argentina during 3 months in spring/summer. The relevant results indicate that in the cavity the air temperature exceeded in 10ºC the outdoor air and that indoor temperatures have not exceeded the outdoor levels in the hottest hours. The air velocity during the day was 3.2 times lower than the wind speed. Two correct design decisions were detected: the use of low-e hermetic double glazing and the addition of a screenpainting to the external DGF panel. The experimental data showed that well-selected glazing of DGFs can reduce the summer energy consumption of buildings, even using West DGFs, in sunny climates.