Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34493
Title: Analyzing sunlight duration and optimum shading using a sky map
Authors: Cheung, HD
Chung, TM
Keywords: Probable sunlight duration
Densely packed building environment
Sky patch
Sky map
External shading
Issue Date: 2007
Publisher: Pergamon Press-Elsevier Ltd
Source: Building and environment, 2007, v. 42, no. 9, p. 3138-3148 How to cite?
Journal: Building and environment
Abstract: A method of predicting the sunlight duration on windows in a densely packed building environment is presented. This method is based on dividing the hemispherical sky into small patches of 5°×5° and determining (using long-term climatic data) the probable sunlight duration with the sun locating in each sky patch. Hence, a sky map is constructed which gives the sunlight duration from every patch of the sky. A graphical tool and a spreadsheet calculation method have also been developed for designing external shading and calculation of probable sunlight duration. Optimum external shading configurations are suggested for different façade orientations of an isolated building in Hong Kong.
URI: http://hdl.handle.net/10397/34493
ISSN: 0360-1323
DOI: 10.1016/j.buildenv.2006.07.030
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