Journal article
A daylight factor for clear sky conditions


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Publication Details
Author list: K. Alshaibani
Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles
Publication year: 1999
Journal: Architectural Science Review
Journal name in source: Architectural Science Review
Volume number: 42
Issue number: 4
Start page: 293
End page: 296
Number of pages: 4
ISSN: 0003-8628
Web of Science ID:
PubMed ID:
Scopus ID: 85006961307


This paper describes a method for estimating the daylight factor under clears@ conditions. The internal illuminance is
divided into two components; light received directly form the window, as a di@e source, and light reflectedpom the
internal surfaces of the room. The method intended to estimate the internal illuminance as a relative valueporn the
vertical illuminance on the external surface of the vertical window plane. A comparison against computer simulation is
used to validate the proposed method.
The purpose of this method is to provide a simple technique that can be used at the early design stages, which can give a
prelimina y information about daylight performunce inside a room. 


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Last updated on 2019-25-09 at 09:41