Assessment of visual and non-visual effects of light in classrooms on the University of Brasília
DOI:
https://doi.org/10.46421/entac.v20i1.6151Keywords:
Natural lighting, Classrooms, Non-visual effects of light, Computer simulation, Architectural parametersAbstract
Natural light as a source of lighting in a study environment is beneficial for the user's health, concentration and alertness through the suppression of melatonin. Most projects typically consider the visual benefits and those related to energy efficiency, however, they do not take into account the non-visual effects of light, which are directly linked to neuroendocrine responses, affecting the user's mood, performance and circadian rhythm. This study aims to evaluate the classrooms at the Darcy Ribeiro Campus of the University of Brasília regarding visual and non-visual effects, seeking the room with the best quality of lighting. The methodology used to evaluate the rooms consisted of mapping the classrooms and simulating visual and non-visual effects — using ClimateStudio (v1.9.8389.22035) and ALFA (0.6.0.0), respectively — and then making a comparison between the simulated scenarios. As a result, the architectural parameters that had the greatest impact on the simulation results were the sun-shading structures and orientation.
References
ALTOMONTE, S. et al. Ten questions concerning well-being in the built environment. Building and Environment, v. 180, 2020.
BUTERA, F. M. Da Caverna à Casa Ecológica: história do conforto e da energia. São Paulo: Nova Técnica Editorial, 2009.
KNOOP, M. et al. Daylight: What makes the difference? Lighting Research & Technology, v. 52, n. 3, p. 147715351986975, 18 ago. 2019.
BELLIA, L. et al. Assessment of melanopsin-based quantities: Comparison of selected design tools and validation against on-field measurements. Building and environment, v. 232, p. 110037–110037, 1 mar. 2023.
TREGENZA, P.; WILSON, M. Daylighting: Architecture and lighting design. [s.l: s.n.].
BERNARDI, N.; KOWALTOWSKI, D. C. C. K. Environmental Comfort in School Buildings. Environment and Behavior, v. 38, n. 2, p. 155–172, mar. 2006.
AMIRAZAR, A. et al. A low-cost and portable device for measuring spectrum of light source as a stimulus for the human’s circadian system. Energy and Buildings, v. 252, p. 111386, 1 dez. 2021.
FERNANDES, Júlia Teixeira; AMORIM, Cláudia Naves David. Capítulo 4. Simulação, ambiente e energia no espaço construído. São Paulo: Editora UnB, 2018, p. 127-161.
ACOSTA, I. et al. Daylighting design for healthy environments: Analysis of educational spaces for optimal circadian stimulus. Solar Energy, v. 193, p. 584–596, nov. 2019.
MOHAMED, A. et al. A simulation-based framework for multi-individual circadian re-entrainment using a single light schedule. Building and environment, v. 229, 2023.
THAYER, A. Lighting for Healthy Living. Disponível em: https://www.lrc.rpi.edu/healthyliving.
CASTRO, Adriana Alice Sekeff. Relação entre Parâmetros Arquitetônicos e Efeitos Não Visuais da Iluminação Natural em Salas de Aula no Ensino Superior. Documento Projeto de Qualificação de Tese de Doutorado da Faculdade de Arquitetura e Urbanismo da UnB. Brasília; 2023.
GOMES, L.; GÓES; SILVA. Guia metodológico de análise climática e avaliação da iluminação natural com Climate Studio. LaSUS FAU eBooks, 15 dez. 2023.
BALLARINI, I. et al. Transformation of an office building into a nearly zero energy building (NZEB): Implications for thermal and visual comfort and energy performance. Energies, v. 12, n. 5, 2019.
NABIL, A.; MARDALJEVIC, J. Useful daylight illuminance: A new paradigm for assessing daylight in buildings. Lighting Research and Technology, v. 37, n. 1, p. 41–59, 2005.
IES. LM 83:23 - Approved Method: IES Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE). New York, USA: [s.n.], 2022.
CEN - EUROPEAN COMMITTEE FOR STANDARDIZATION. EN 17037: Daylight in buildings. Brussels: [s.n.].
BROWN, T. M. Melanopic illuminance defines the magnitude of human circadian light responses under a wide range of conditions. Journal of Pineal Research, v. 69, 2020.
ALFA. Disponível em: https://www.solemma.com/alfa/. Acesso em: 16 março. 2024.
CIE. CIE S 026:2018. CIE System for Metrology of Optical Radiation for IPRGC-Influenced Responses to Light. Vienna: [s.n.].