Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate

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 comi...

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Detalles Bibliográficos
Autores: Calama-González, Carmen María, Suárez, Rafael, León-Rodríguez, Ángel Luis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/81512
Acceso en línea:https://hdl.handle.net/11441/81512
https://doi.org/10.3390/en11102790
Access Level:acceso abierto
Palabra clave:School buildings
Energy performance
Energy savings
Shading devices
Solar radiation
Daylight
Illuminance
Energy consumption
Mediterranean climate
Overheating
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spelling Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climateCalama-González, Carmen MaríaSuárez, RafaelLeón-Rodríguez, Ángel LuisSchool buildingsEnergy performanceEnergy savingsShading devicesSolar radiationDaylightIlluminanceEnergy consumptionMediterranean climateOverheatingMost 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.Spanish government BIA2014-53949-RMinistry of Economy and Competitiveness, Spanish GovernmentEuropean Regional Development FundMDPIConstrucciones Arquitectónicas I2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/81512https://doi.org/10.3390/en11102790reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésEnergies, 11 (10), 2790-1-2790-17.BIA2014-53949-Rhttps://doi.org/10.3390/en11102790info:eu-repo/semantics/openAccessoai:idus.us.es:11441/815122026-06-17T12:51:07Z
dc.title.none.fl_str_mv Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
title Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
spellingShingle Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
Calama-González, Carmen María
School buildings
Energy performance
Energy savings
Shading devices
Solar radiation
Daylight
Illuminance
Energy consumption
Mediterranean climate
Overheating
title_short Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
title_full Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
title_fullStr Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
title_full_unstemmed Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
title_sort Thermal and lighting consumption savings in classrooms retrofitted with shading devices in a hot climate
dc.creator.none.fl_str_mv Calama-González, Carmen María
Suárez, Rafael
León-Rodríguez, Ángel Luis
author Calama-González, Carmen María
author_facet Calama-González, Carmen María
Suárez, Rafael
León-Rodríguez, Ángel Luis
author_role author
author2 Suárez, Rafael
León-Rodríguez, Ángel Luis
author2_role author
author
dc.contributor.none.fl_str_mv Construcciones Arquitectónicas I
dc.subject.none.fl_str_mv School buildings
Energy performance
Energy savings
Shading devices
Solar radiation
Daylight
Illuminance
Energy consumption
Mediterranean climate
Overheating
topic School buildings
Energy performance
Energy savings
Shading devices
Solar radiation
Daylight
Illuminance
Energy consumption
Mediterranean climate
Overheating
description 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.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/81512
https://doi.org/10.3390/en11102790
url https://hdl.handle.net/11441/81512
https://doi.org/10.3390/en11102790
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Energies, 11 (10), 2790-1-2790-17.
BIA2014-53949-R
https://doi.org/10.3390/en11102790
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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