109120 20230519145419.0 doi 10.1016/j.enbuild.2021.111456 sideral 125268 ART-2021-125268 eng Marín-Doñágueda, M. Simultaneous optimization of circadian and color performance for smart lighting systems design 2021 Access copy available to the general public Unrestricted 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%. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 7.201 2021 CONSTRUCTION & BUILDING TECHNOLOGY 8 / 68 = 0.118 2021 Q1 T1 ENGINEERING, CIVIL 8 / 139 = 0.058 2021 Q1 T1 ENERGY & FUELS 36 / 119 = 0.303 2021 Q2 T1 1.682 2021 Building and Construction 2021 Q1 Mechanical Engineering 2021 Q1 Civil and Structural Engineering 2021 Q1 11.5 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Salgado-Remacha, F.J. Universidad de Zaragoza (orcid)0000-0002-6048-310X Jarabo, S. Universidad de Zaragoza (orcid)0000-0002-2523-8598 Berdejo, V. Universidad de Zaragoza (orcid)0000-0002-7260-0473 Tercero, J.L. García Fernández, J. Pajares San Gregorio, P. 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 2002 647 Universidad de Zaragoza Dpto. Física Aplicada Área Óptica 252 (2021), 111456 [11 p.] Energy build. Energy and Buildings 0378-7788 2553381 http://zaguan.unizar.es/record/109120/files/texto_completo.pdf Versión publicada 2857752 http://zaguan.unizar.es/record/109120/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:109120 articulos driver 2023-05-18-14:05:48 ARTICLE