Simultaneous optimization of circadian and color performance for smart lighting systems design

Marín-Doñágueda, M. ; Salgado-Remacha, F.J. (Universidad de Zaragoza) ; Jarabo, S. (Universidad de Zaragoza) ; Berdejo, V. (Universidad de Zaragoza) ; Tercero, J.L. ; García Fernández, J. ; Pajares San Gregorio, P.

Resumen: We present in this work a method to design lighting sources that can be adapted to different temperatures of color and, simultaneously, with a tunable circadian character. We obtained an acceptable range of tuning in both parameters compared to the bibliography. This kind of lighting source has potential applications particularly in building lighting, but also in farming or agriculture. At the same time, we have shown the possibilities of multiobjective optimizations in the lighting industry. The optimization has been developed using the Genetic Algorithm and multiobjective merit functions. The lighting source is able to work under two different regimes regarding the circadian effect, with a design based on a combination of two monochromatic and two white Lighting Emitting Diodes (enough for controlling the circadian character and the color performance at the same time). A prototype, which can be manually or automatically controlled, has been also implemented and evaluated, with a performance in terms of color coordinates very close to the daylight, showing a modulation of the Circadian Efficacy of Radiation between 6% and 16%, and a Color Rendering Index above 80%.

Idioma: Inglés

DOI: 10.1016/j.enbuild.2021.111456

Año: 2021

Publicado en: Energy and Buildings 252 (2021), 111456 [11 p.]
ISSN: 0378-7788

Factor impacto JCR: 7.201 (2021)

Categ. JCR: CONSTRUCTION & BUILDING TECHNOLOGY rank: 8 / 68 = 0.118 (2021) - Q1 - T1
Categ. JCR: ENGINEERING, CIVIL rank: 8 / 139 = 0.058 (2021) - Q1 - T1
Categ. JCR: ENERGY & FUELS rank: 36 / 119 = 0.303 (2021) - Q2 - T1

Factor impacto CITESCORE: 11.5 - Engineering (Q1)

Factor impacto SCIMAGO: 1.682 - Building and Construction (Q1) - Mechanical Engineering (Q1) - Civil and Structural Engineering (Q1)

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
Área (Departamento): Área Óptica (Dpto. Física Aplicada)