Investigating the effect of Voronoi shell parametric design on improving daylight efficiency in an office building in Shiraz
The main purpose of this article is to investigate the performance and impact of the building shell on natural lighting components and radiation reception, as components affecting the quality of the interior space, through designing a shell with Voronoi algorithm.
For this purpose, using the genetic algorithm and taking into account the Useful Daylight Illumination and the Total Radiation, optimal configurations are presented from among the design options of the shell, which is based on the Voronoi algorithm. The working method has been multi-objective optimization using NSGA-II and linear modeling in the Rhino platform and Grasshopper plugin using environmental analysis tools such as Energy Plus and Radiance for numerical calculations. Also, skins are analyzed in three cases: 1-an infilled wall without the second skin, 2-using horizontal louvers, and 3- Voronoi skin as the second skin.
It has been indicated that with Voronoi skin, the amount of average Useful Daylight Illuminance has increased by 63.86% compared to the case without the second skin, and by 21.02% compared to the case using horizontal louvers the second skin. Also, by this design idea, the amount of total solar radiation decreases by 63.86% compared to the case without the second shell and decreases by 15.38% compared to the issue of using horizontal louvers as the second shell.
The designed shell resulting from the optimization process and the use of Voronoi geometry has a good performance in improving the Useful Daylight Illuminance and reducing the amount of sunlight.
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