Evaluation of Indoor Daylight Focused on the Human Circadian System

Abstract:

The circadian phototransduction issue caused strong interest at the beginning of the new millennium, while the research of non-visual influence of light is predominantly developing in medicine field of science. The outputs confirmed hypothesis that human habits are strongly related with ambient light conditions and disruption of natural light conditions may result in complex of health diseases with negative consequences. Actual effort for minimizing energy demands of buildings is very important for sustainable architecture, but the aspect of “circadian-friendly” design should not be neglected, even though it is not entirely investigated yet. The growth of building envelope´s thickness, as an example, causes noticeable drop of amount of penetrating daylight with the same dimensions of fenestrations. The paper presents an overview of evaluation methods of circadian effect of light on human including available actual calculation equations and standards, providing certain principles to design indoor spaces intended for long term occupation. The aim is to extend the knowledge focused on suggestion of internal surfaces, glazing and active shading systems into building physics and architectural design with a possibility to achieve a control by system of intelligent building

• Periodical: Applied Mechanics and Materials (Volume 887)
• Pages: 511-518
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.887.511
• Online since: January 2019
• Authors: Peter Hartman, Lucia Maňková*, Peter Hanuliak, Jozef Hraška
• Keywords: Circadian System, Daylight Spectral Characteristics, Spectral Reflectance

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