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Building and Environment, 2006
The first step in evaluating the visual performance and energy efficiency provided by daylight requires an accurate estimation of the amount of daylight entering a building. The actual daylight illuminance of a room is mainly influenced by the luminance levels and patterns of the sky in the direction of view of the window at that time.
Hin Wa Li, Chris C S Lau
exaly +2 more sources
The first step in evaluating the visual performance and energy efficiency provided by daylight requires an accurate estimation of the amount of daylight entering a building. The actual daylight illuminance of a room is mainly influenced by the luminance levels and patterns of the sky in the direction of view of the window at that time.
Hin Wa Li, Chris C S Lau
exaly +2 more sources
Useful daylight illuminances: A replacement for daylight factors
Energy and Buildings, 2006This paper describes the application of a new paradigm, called useful daylight illuminance (UDI), to assess daylight in buildings. The UDI paradigm is designed to aid the interpretation of climate-based analyses of daylight illuminance levels that are founded on hourly meteorological data for a period of a full year.
John Mardaljevic
exaly +3 more sources
Below Useful Daylight Illuminance (BUDI): a new useful range measurement parameter
2019 SBFoton International Optics and Photonics Conference (SBFoton IOPC), 2019Light plays an important role in life cycle: light is a normative issue and a common use requirement which helps the perception and apprehension of formal and conceptual aspects. Specifically, in respect to the relationship between user and light, there are intrinsic physiological and psychological issues leading to an understanding between the ...
Segatto M E V
exaly +2 more sources
Useful Daylight Illuminance Prediction Under Data Imbalance in an Urban Context
eCAADe proceedings, 2023Ilkim Canli +2 more
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Korean Science Education Society for the Gifted, 2023
The purpose of this study is to predict the desk illumination of the classroom using the results obtained through sensors that can measure the natural lighting environment, and to save energy by dimming the artificial lighting of the classroom. In addition, a theoretical equation for predicting desk illumination through sensor values was produced ...
Daeki Cho +4 more
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The purpose of this study is to predict the desk illumination of the classroom using the results obtained through sensors that can measure the natural lighting environment, and to save energy by dimming the artificial lighting of the classroom. In addition, a theoretical equation for predicting desk illumination through sensor values was produced ...
Daeki Cho +4 more
openaire +1 more source
Useful daylight illuminance: a new paradigm for assessing daylight in buildings
Lighting Research & Technology, 2005This paper introduces a new paradigm to assess daylight in buildings called ‘useful daylight illuminance’, or UDI. The UDI paradigm preserves much of the interpretive simplicity of the conventional daylight factor approach. In contrast to daylight factors however, UDI is founded on an annual time-series of absolute values for illuminance predicted ...
A Nabil, J Mardaljevic
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Daylighting provided by horizontal openings using the illumination vector
Renewable Energy, 2006Stemming from the expressions of the illumination vector provided by vertical openings at any point of the interior space, this article proposes and solves the equivalent expressions for openings in horizontal planes, thus completing the expressions of Navarro [Sobre iluminacion natural en arquitectura. Ed.
J. Navarro, J.J. Sendra
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Daylight Harvesting for Indoor Illumination Using Solar Concentrator and Light Guide
2021Tremendous availability and broad spectrum of solar energy during daytime on the earth has given us opportunity to fulfil our energy requirements. The photometric parameters of sunlight are better as compared to all other artificial light sources. Further, the spectrum of sunlight matches best with the eye sensitivity curve of human.
Mayank Gupta +3 more
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Optimizing the Form of School Buildings by Using the Requirements for Daylight Illumination
Architectural Science Review, 2003Daylight is an important factor in the functional and aesthetic aspects of school-building design. Because of the broad scope of the topic, in this study we have limited our investigation to the influence of the shape of the classroom on the daylight levels and the visual comfort, as these factors have an important influence on the design of school ...
Borut Bezjak +3 more
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