Utilising spectral lighting simulation technique for evaluating transmitted daylight through glazing: Exploring the non-visual effects and colour appearance

Nazari, Marzieh; Matusiak, Barbara; Stefani, Oliver

doi:10.1016/j.heliyon.2023.e20436

Heliyon

2023

DOI: 10.1016/j.heliyon.2023.e20436

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Utilising spectral lighting simulation technique for evaluating transmitted daylight through glazing: Exploring the non-visual effects and colour appearance

Marzieh Nazari,

Barbara Matusiak,

Oliver Stefani

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2024

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Cited by 3 publications

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Assessment of occupants' behaviour on the indoor luminous ambiances of collective residential buildings: A case study from Annaba, Algeria

Makhlouf,

Cheraitia,

Alkama

2024

B SERBIAN GEOGRAPHIC

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The rise of ecological approaches to designing and constructing homes, which prioritize energy efficiency and sanitation, has garnered significant attention. Ecological architecture is especially pertinent in its integration of natural light into the design process. Changing patterns of living and space utilization necessitate a reassessment of priorities and the adoption of new techniques in living space design. This study aims to evaluate the satisfaction of occupants in residential buildings in the Oued el-Fourcha neighborhood in Annaba through a post-occupancy assessment. The assessment explores the intersection of designing for daylighting and designing for how occupants interact with their indoor environment. Additionally, it investigates the impact of daylighting and human behavior on the lighting environment. The study examines the qualitative aspects of daylighting, consider-ing the preferences, health, and behavior of building occupants. The research findings indicate that window size and occupant behavior can have a detrimental effect on the lighting environment of occupied spaces, which can subsequently impact occupant health.

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Assessment of occupants' behaviour on the indoor luminous ambiances of collective residential buildings: A case study from Annaba, Algeria

Makhlouf,

Cheraitia,

Alkama

2024

B SERBIAN GEOGRAPHIC

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Efficient Daylighting: The Importance of Glazing Transmittance and Room Surface Reflectance

Escobar,

Orduna-Hospital,

Aporta

et al. 2024

Buildings

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This study quantitatively analyzes the influence of the spectral characteristics, reflectance or transmittance, of different materials on the lighting of an interior space with natural and artificial light. For this purpose, a three-dimensional simulated classroom is used, where each of the components is assigned specific materials with an associated reflectance or transmittance. Additionally, two types of lighting are available: 6500 K daylight and light from six continuous spectrum LED luminaires. The lighting is evaluated on two planes: the work plane and the corneal plane (80 cm and 120 cm from the floor, respectively). Three versions of the same classroom were analyzed by varying the walls (white, blue, and red), each with a different neutral-colored floor. Furthermore, calculations were performed in each situation considering two different types of glazing in the windows, with 20% and 88% transmittance. The photopic and melanopic lighting analysis was carried out with the ALFA calculation program to verify the necessary requirements for adequate lighting. The results show that the white classroom is the best lit, followed by the blue and finally the red, due to the reflectance characteristics of the walls and floor although slight differences among them are found. It was found that in some cases, additional auxiliary luminaires would be required for proper lighting depending on the transmittance of the glazing. This study highlights the critical role of material selection in optimizing both photopic and melanopic lighting, with practical implications for energy efficiency and occupant well-being in educational spaces.

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Photopic and Melanopic Analysis of Daylight Through Glazing in Indoor Environments

Sanchez-Cano,

Orduna-Hospital,

Aporta

2024

Buildings

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Daylight influences more than just our vision; elements such as its intensity and spectral composition can significantly impact our circadian rhythms and, consequently, our overall well-being. In this study, we present an analysis of a classroom simulated in Dialux, involving a comprehensive examination of natural daylight through a specific type of glazing, assessing their photopic characteristics and their influence on the human circadian system in individuals aged 32 and 70 years. Our findings highlight that spectral data from daylight (D75, D65, and D50) and glazing transmittance can be easily used to evaluate the melanopic equivalent daylight illuminance (mel-EDI) in addition to standard photopic illuminance, applying a factor calculated from the spectral characteristics of both daylight and glazing transmittance. Our results provide new insights for users to more effectively assess daylighting quality and its implications within indoor environments.

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Utilising spectral lighting simulation technique for evaluating transmitted daylight through glazing: Exploring the non-visual effects and colour appearance

Cited by 3 publications

References 55 publications

Assessment of occupants' behaviour on the indoor luminous ambiances of collective residential buildings: A case study from Annaba, Algeria

Assessment of occupants' behaviour on the indoor luminous ambiances of collective residential buildings: A case study from Annaba, Algeria

Efficient Daylighting: The Importance of Glazing Transmittance and Room Surface Reflectance

Photopic and Melanopic Analysis of Daylight Through Glazing in Indoor Environments

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