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 [BibTeX] [Marc21]
Daylighting simulation for external Venetian blinds based on HDR sky luminance monitoring with matrix algebraic approach
Type of publication: Journal paper
Citation: Wu_EP_2019
Publication status: Published
Journal: Energy Procedia
Volume: 158
Year: 2019
Month: February
Pages: 2677-2682
DOI: 10.1016/j.egypro.2019.02.021
Abstract: An accurate daylighting simulation can potentially improve the quality of pre-planing buildings and regulating daylighting to achieve the goal of green buildings. However, standard sky models can hardly reproduce real skies in real-time for a specific location within its micro-climate. This paper investigates an embedded photometric device based on high dynamic range (HDR) sky luminance monitoring with high resolution mapping in simulating real-time horizontal work-plane illuminance distribution. To increase time efficiency in the iterative process for the illuminance calculation, a matrix algebraic approach was employed and adapted for the device. The photometric device was validated experimentally in a daylighting test module with external Venetian blinds at different tilt angle of slats. The results indicate the embedded photometric device based on monitored sky can improve accuracy in simulating real-time daylighting provision by over 3 times, with 15%∼37% average error, compared with a common practice using the Perez all-weather model.
Projects Idiap
Authors Wu, Yujie
Kämpf, Jérôme
Scartezzini, J. -L.
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