Average daylight factor under various skies and external environments

Research output: Conference Papers (RGC: 31A, 31B, 32, 33)32_Refereed conference paper (no ISBN/ISSN)peer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages174-179
Publication statusPublished - 10 Aug 2011

Conference

TitleSOLARIS 2011 Proceedings of the 5th International Conference on Solar Radiation and Daylighting
PlaceCzech Republic
CityBrno
Period10 - 11 August 2011

Abstract

The average daylight factor (DFave) method with the computation based on standard overcast sky conditions is a useful daylighting criterion. Recently, the International Commission on Illumination (CIE) has adopted a range of 15 standard sky distributions covering the whole spectrum of usual skies found in nature. In a dense urban region, the external environment plays a significant role in daylighting design. This paper studies an approach to calculating the DFave for rooms facing heavily obstructed environments under overcast and non-overcast skies. The performance of the proposed method was evaluated against the results obtained by computer simulations. The proposed approach provides a simple alternative for predicting indoor daylight illuminance, which is useful for glazing designs and building thermal analysis.

Citation Format(s)

Average daylight factor under various skies and external environments. / LI, Hin Wa; Lam, Tony N. T.; Lam, Joseph Choi.

2011. 174-179 Paper presented at SOLARIS 2011 Proceedings of the 5th International Conference on Solar Radiation and Daylighting, Brno, Czech Republic.

Research output: Conference Papers (RGC: 31A, 31B, 32, 33)32_Refereed conference paper (no ISBN/ISSN)peer-review