Researchers at the UPM proved that the usage of high
efficient air curtains in stores means an energetic saving over 30%.
This research, that was conducted by researchers from
Escuela Técnica Superior de Edificación and from Escuela Técnica Superior de
Arquitectura of Universidad Politécnica de Madrid (UPM), aimed to propose a
strategy for energy saving and to improve the hygrothermal conditions in stores
with intensive pedestrian traffic. After an exhaustive experimental analysis,
researchers found that the usage of conventional air curtains hardly has
advantages, but the usage of high efficient air curtains provides significant
improvements in both efficiency and energy saving.