Abstract
In the context of energy conservation and sustainable development, building design should take into account the energy efficiency criteria by using renewable energy sources. Double-skin facades (DSF) represent innovative energy-efficient techniques that have gained increasing interest worldwide. The present study reports the results of an experimental campaign performed on a full-scale double-skin façade using the in-situ measurement methodology. The thermodynamic behavior of the façade is studied under real exterior climatic conditions in Romania in hot and cold seasons, and performance indicators in terms of pre-heating efficiency and dynamic insulation efficiency were determined. Three summer periods are analyzed corresponding to the outdoor air curtain scenario for three ventilation modes in naturally or mechanically ventilated single-story DSF. Results revealed that the third ventilation scenario, which combines horizontal and vertical openings, gives the best efficiency of 71.3% in the double skin façade functioning. During the cold season, the channel façade behaved like a thermal buffer between the building and the exterior air, ensuring the thermal energy for partial or integral heating of the building.
Highlights
Published: 20 December 2021With the worldwide need for sustainable development, double skin façades were developed like strategies and technologies for decreasing the operational consumption of energy during a building’s life cycle
Double Skin Façades (DSF) are building envelopes composed of two layers of glass separated by a ventilated air channel that acts as a thermal agent to improve indoor thermal comfort
This study aims to reflect on strategies for DSF that are namic insulation efficiency during the hot one
Summary
With the worldwide need for sustainable development, double skin façades were developed like strategies and technologies for decreasing the operational consumption of energy during a building’s life cycle. Experimental studies on ventilated façades and fully glazed double skin type were carried out in laboratory conditions [6,7,8]. An experimental analysis of double skin ventilated façade was conin the specific climate conditions of Romania, in July and November, for different strategies ducted in the specific climate conditions of Romania, in July and November, for different of ventilation in order to determine the thermodynamic behavior and performance assessstrategies of ventilation in order to determine the thermodynamic behavior and performent in terms of pre-heating efficiency during the cold season and the dynamic insulation mance assessment in terms of pre-heating efficiency during the cold season and the dyefficiency during the hot one. Channel with the lateral ones on the exterior glazing of the DSF is proposed
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