Next Article in Journal
A Robust Control of Two-Stage Grid-Tied PV Systems Employing Integral Sliding Mode Theory
Previous Article in Journal
GIS-Based Methodology for Evaluating the Wind-Energy Potential of Territories: A Case Study from Andalusia (Spain)
Open AccessArticle

Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate

Instituto Universitario de Arquitectura y Ciencias de la Construcción, Escuela Técnica Superior de Arquitectura, Universidad de Sevilla, Av. Reina Mercedes 2, 410012 Seville, Spain
*
Author to whom correspondence should be addressed.
Energies 2018, 11(10), 2790; https://doi.org/10.3390/en11102790
Received: 23 August 2018 / Revised: 10 October 2018 / Accepted: 15 October 2018 / Published: 17 October 2018
Most educational buildings in southern Spain do not meet current energy requirements as weak thermal envelopes and the lack of cooling systems lead to severe discomfort in classrooms, especially when temperatures are above 30 °C. Given that global warming is expected to worsen this situation in coming decades, one of the first steps to be taken is to protect window openings from high levels of solar radiation by adding shading devices to reduce indoor temperatures and improve visual comfort. The aim of this research is to evaluate the reduction in thermal and lighting consumption in a classroom where a solar protection system in the form of an egg-crate shading device was installed. Two classrooms—one with an egg-crate device and another with no shading system—were monitored and compared for a whole year. The use of an egg-crate device in these classrooms reduced indoor operative temperatures during warmer periods while also improving indoor natural illuminance levels. Moreover, annual electric air conditioning consumption decreased by approximately 20%, with a 50% reduction in electric lighting consumption. These savings in electricity were largely conditioned by the use patterns observed in these ambient systems. View Full-Text
Keywords: school buildings; energy performance; energy savings; shading devices; solar radiation; daylight; illuminance; energy consumption; Mediterranean climate; overheating school buildings; energy performance; energy savings; shading devices; solar radiation; daylight; illuminance; energy consumption; Mediterranean climate; overheating
Show Figures

Figure 1

MDPI and ACS Style

Calama-González, C.M.; Suárez, R.; León-Rodríguez, Á.L. Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate. Energies 2018, 11, 2790.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop