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Open AccessArticle

Daylighting Performance of Solar Control Films for Hospital Buildings in a Mediterranean Climate

Instituto Universitario de Arquitectura y Ciencias de la Construcción, Escuela Técnica Superior de Arquitectura, Universidad de Sevilla, Av. Reina Mercedes 2, 41012 Seville, Spain
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Energies 2019, 12(3), 489; https://doi.org/10.3390/en12030489
Received: 26 December 2018 / Revised: 29 January 2019 / Accepted: 31 January 2019 / Published: 3 February 2019
(This article belongs to the Section Energy and Buildings)
One of the main retrofitting strategies in warm climates is the reduction of the effects of solar radiation. Cooling loads, and in turn, cooling consumption, can be reduced through the implementation of reflective materials such as solar control films. However, these devices may also negatively affect daylight illuminance conditions and the electric consumption of artificial lighting systems. In a hospital building, it is crucial to meet daylighting requirements as well as indoor illuminance levels and visibility from the inside, as these have a significant impact on health outcomes. The aim of this paper is to evaluate the influence on natural illuminance conditions of a solar control film installed on the windows of a public hospital building in a Mediterranean climate. To this end, a hospital room, with and without solar film, was monitored for a whole year. A descriptive statistical analysis was conducted on the use of artificial lighting, illuminance levels and rolling shutter aperture levels, as well as an analysis of natural illuminance and electric consumption of the artificial lighting system. The addition of a solar control film to the external surface of the window, in combination with the user-controlled rolling shutter aperture levels, has reduced the electric consumption of the artificial lighting system by 12.2%. Likewise, the solar control film has increased the percentage of annual hours with natural illuminance levels by 100–300 lux. View Full-Text
Keywords: hospital building retrofitting; solar control films; daylighting performance; solar radiation; illuminance; energy consumption; energy savings hospital building retrofitting; solar control films; daylighting performance; solar radiation; illuminance; energy consumption; energy savings
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MDPI and ACS Style

Calama-González, C.M.; León-Rodríguez, Á.L.; Suárez, R. Daylighting Performance of Solar Control Films for Hospital Buildings in a Mediterranean Climate. Energies 2019, 12, 489. https://doi.org/10.3390/en12030489

AMA Style

Calama-González CM, León-Rodríguez ÁL, Suárez R. Daylighting Performance of Solar Control Films for Hospital Buildings in a Mediterranean Climate. Energies. 2019; 12(3):489. https://doi.org/10.3390/en12030489

Chicago/Turabian Style

Calama-González, Carmen M.; León-Rodríguez, Ángel L.; Suárez, Rafael. 2019. "Daylighting Performance of Solar Control Films for Hospital Buildings in a Mediterranean Climate" Energies 12, no. 3: 489. https://doi.org/10.3390/en12030489

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