A mini-scale modeling approach to natural daylight utilization in building design

This paper purposes on shading devices as natural daylight utilization component for building design. It was proved that a proper setting for shading device could conspicuously promote the room lighting performance. Natural daylight which includes directional sunlight, diffused skylight and reflecte...

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Bibliographic Details
Published in:Building and environment 2007, Vol.42 (1), p.372-384
Main Authors: Cheng, C.L., Chen, C.L., Chou, C.P., Chan, C.Y.
Format: Article
Language:English
Subjects:
Applied sciences
Building technical equipments
Buildings
Buildings. Public works
Daylight factor
Diffused skylight
Directional sunlight
Environmental engineering
Exact sciences and technology
Project management. Process of design
Shading devices
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Summary:This paper purposes on shading devices as natural daylight utilization component for building design. It was proved that a proper setting for shading device could conspicuously promote the room lighting performance. Natural daylight which includes directional sunlight, diffused skylight and reflected light can also exert as a perspective of energy conservation in buildings. In order to verify a simple approach can also be workable, a mini-scale model (1:20) is employed in this study. It reveals that when a suitable altitude and azimuth is maintained, in regards to the vertical shading device and the sun position, not only is shading achieved, but the area of the daylight zone can also be substantially increased. The experiment investigated and analyzed the details of this modeling data and subsequently proposed relevant design criterion for vertical shading devices that both users and designers can apply. Namely, it proved that a mini-scale model could also assist in natural daylight utilization and building energy-conservation design.
ISSN:0360-1323
1873-684X
DOI:10.1016/j.buildenv.2005.08.004