PUBLICACIONES últimos 10 años
Calama-González, C.M.; Suárez Medina, R.; León-Rodríguez, Á.L.; Ferrari, S. (2019). Assessment of Indoor Environmental Quality for Retrofitting Classrooms with An Egg-Crate Shading Device in A Hot Climate.
REVISTA: Sustainability, 11 (4), 1078
IMPACTO: JCR (2018): 2,592. ENVIRONMENTAL SCIENCES, Q2 (105/251)
DOI: https://doi.org/10.3390/su11041078
ABSTRACT:
In the Mediterranean climate, a large number of educational buildings suffer from discomfort due mostly to energy-deficient thermal envelopes and a lack of cooling systems. Impending climate change is expected to worsen overheating in classrooms, especially during heatwave periods. Therefore, the protection of window openings to reduce incident solar radiation while maintaining adequate indoor environmental quality must be considered a necessary key focus. The main objective of this research is to assess the influence of an egg-crate shading device on the indoor environmental quality of a classroom in Southern Spain. To do so, two classrooms—with and without this shading device—were simultaneously monitored over a whole year. The implementation of an egg-crate shading device allowed for a significant reduction of the incident solar radiation, both in summer and mid-season (around 45–50%), which objectively slightly conditioned indoor operative temperatures. Given the noticeable influence of the user patterns observed, indoor illuminance was also improved, as the rolling shutters tended to be opened at higher aperture levels.
Highlights:
An external egg-crate shading device was installed in a classroom. Ambient and lighting variables were recorded (air temperature, surface temperature, aperture of windows, indoor and outdoor illuminance, rolling shutter aperture levels, incident solar radiation). Monitoring was carried out during three seasonal periods: winter, summer and mid-season. The influence of the egg-crate shading deice con incident solar radiation, indoor operative temperatures and indoor natural illuminance was assessed. Thermal comfort and indoor natural illuminance were also analysed.
