Paper Conference

Proceedings of ASim Conference 2012: 1st Asia conference of IBPSA-China, Japan, Korea


Study of a simplified prediction model for daylight autonomy of office building in different daylight climate zones

F.Lu , Borong Lin, Q.Yu

Abstract: At the scheme design stage, the potential of daylighting is significant due to the saving for electric lighting use. There are some methods for lighting energy consumption prediction to optimize the daylighting design, most of which need detailed modeling and simulation process. A simplified prediction function for DA(daylight autonomy) in whole year for office building is proposed and a direct correlation has been established between DA and parameters such as orientations, ratio of window area to wall area (WWR) and perimeter area. Then the generality of coefficient in this prediction function for different daylight climate zones is analyzed. By choosing a series of typical cities in different daylight climate zones and fitting the coefficient in the DA functional relations of different WWR, this paper analyzes the variation and classification rules of the prediction function’s coefficient of different cities.
Pages: 635 - 642