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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 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.
Azza Nabil, John Mardaljevic
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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.
Danny H.W. Li +2 more
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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.
Danny H.W. Li +2 more
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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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Predicting daylight illuminance on inclined surfaces using sky luminance data
Energy, 2005Abstract Daylight illuminance, particularly on vertical surfaces, plays a major role in determining and evaluating the daylighting performance of a building. In many parts of the world, however, the basic daylight illuminance data for various vertical planes are not always readily available.
Danny H.W. Li +2 more
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Fiber-based daylighting system using trough collector for uniform illumination
Solar Energy, 2020Abstract A lot of research attention has been given to collect sunlight through solar concentrators for indoor illumination. Traditional, parabolic trough as a line focus with single array of fibers had mechanical design and installation issues. Here, a novel daylighting system is proposed to transmit maximum light into the optical fibers using ...
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Using satellite-based methods to predict daylight illuminance for subtropical Hong Kong
Lighting Research & Technology, 2009Satellite-based methods are proposed to estimate global illuminance from geostationary satellite data under local climate conditions. The data used in this model are global irradiance and global illuminance collected from the International Daylight Monitoring Programme research class station in The Chinese University of Hong Kong and the visible ...
JZ He, E. Ng
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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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SPIE Proceedings, 2012
There are many master pieces of the cultural heritage which can´t be correctly contemplated if daylight is not part of the exhibition environment, since they were made with the sun light as essential element of them. The Portico de la Gloria and the Cloister and paintings of Santa Maria de El Paular monastery are ones of these cases.
D. Vázquez +8 more
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There are many master pieces of the cultural heritage which can´t be correctly contemplated if daylight is not part of the exhibition environment, since they were made with the sun light as essential element of them. The Portico de la Gloria and the Cloister and paintings of Santa Maria de El Paular monastery are ones of these cases.
D. Vázquez +8 more
openaire +1 more source