2026-05-07T20:41:24Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/108392025-09-04T00:05:23Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394

Dieste Velasco, Mª Isabel 149 600 0000-0002-2077-2097 García Ruiz, Ignacio 358bfcca-1f6c-4c99-9ce1-6f317b272fea 600 González Peña, David 256 600 0000-0002-9347-4947 Alonso Tristán, Cristina 23 600 0000-0003-4733-7391 2025-09-03T10:25:16Z 2025-09-03T10:25:16Z 2024-09 0960-1481 https://hdl.handle.net/10259/10839 10.1016/j.renene.2024.120926 The use of daylight in buildings contributes to energy savings while significantly improving visual comfort and well-being. It is therefore very important to be able to quantify illuminance to take advantage of daylight. Although several models have been proposed in recent years to determine global and diffuse illuminance, the same may not be said of direct solar illuminance, which situates this study in an area of noteworthy scientific and technological interest. Two luminous efficacy models for clear sky conditions are proposed and the results of benchmarking with previous models from the literature are presented. Data collected in Burgos (Spain) were analyzed. Specifically, eight previous models for the prediction of direct illuminance were compared with our two new models. The two new models predicted illuminance more accurately than most of the classic models. Specifically, running the models on the training data yielded Root Mean Square Error (RMSE) values of 2.58 % and 2.76 % for the first and the second model, respectively. Likewise, the test data yielded RMSE values of 3.31 % and 3.49 %, and the Mean Bias Error values with the training data were 0.06 % and 0.11 %, respectively. The models achieved high accuracy levels with both the training and the test data sets. This research was co-funded by MCIN/AEI/10.13039/501100011033, “ERDF A way of making Europe” (Project PID2022-139477OB-I00), “European Union Next Generation EU/PRTR” (Project TED2021-131563B–I00) and Junta de Castilla y León, Consejería de Industria, Comercio y Empleo (Project INVESTUN/22/BU/0001). application/pdf eng Elsevier Renewable Energy. 2024, V. 231, 120926 https://doi.org/10.1016/j.renene.2024.120926 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/PID2022-139477OB-I00/ES/AVANCES PARA UN URBANISMO DE BAJO CONSUMO ENERGETICO/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/TED2021-131563B-I00/ES/Modelado espectral de la radiación solar en entornos urbanos: una oportunidad para la sostenibilidad de las ciudades/sun4cities/ info:eu-repo/grantAgreement/Junta de Castilla y León//INVESTUN%2F22%2FBU%2F0001//Valoración técnica de los niveles óptimos de Iluminación efectiva para la salud visual y psicológica en entornos laborales/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Luminous efficacy models Direct illuminance Modeling Iluminación natural Daylighting Two new models of direct luminous efficacy under clear sky conditions for daylighting in Burgos, Spain info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Renewable Energy 231 120926 THUMBNAIL Dieste-re_2024.pdf.jpg Dieste-re_2024.pdf.jpg IM Thumbnail image/jpeg 4858 https://riubu.ubu.es/bitstream/10259/10839/4/Dieste-re_2024.pdf.jpg 038c0b1d863e43d5572c6dea2dd79fe8 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/10839/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/10839/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Dieste-re_2024.pdf Dieste-re_2024.pdf application/pdf 5252747 https://riubu.ubu.es/bitstream/10259/10839/1/Dieste-re_2024.pdf 1c9c829d4c328b5cb6e178bef3595e1a MD5 1 10259/10839 oai:riubu.ubu.es:10259/10839 2025-09-04 02:05:23.977 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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