Volume 33, Issue 2 (2023)                   IJAUP 2023, 33(2) | Back to browse issues page

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Ahmadnejad F, Shahbazi Y, Mokhtari Keshavar M, Zendeh Laleh M, HosseinPour S, KhaliliKhoo N. The Effect of Shader’s Type, Depth and Distance on Optimizing Daylight Autonomy in High Rise Buildings in Cold Climate. IJAUP 2023; 33 (2)
URL: http://ijaup.iust.ac.ir/article-1-719-en.html
1- Faculty of Architecture and Urbanism, Islamic Art University, Tabriz, Iran , f.ahmadnejad@tabriziau.ac.ir
2- Faculty of Architecture and Urbanism, Islamic Art University, Tabriz, Iran
For years, research on daylight in work environments with different climates has been important for researchers to distribute light evenly in the indoor space in order to create a healthy work environment and visual comfort. This study examines the effect of horizontal and vertical shading devices, the depth and distance of louvres on daylight with the aim of increasing DLA (daylight autonomy) for Abrisham tower in Tabriz, Iran. As input parameters the depth of louvres was considered 5 and 15 cm and their distance were considered 150 and 200 cm. Modeling was performed in Rhinoceros software and the Simulation was done in Grasshopper plugin to control the geometric parameters and with the help of ladybug and honeybee plugins. The multi-objective simulation tool, octopus was used to optimizing. Results show that vertical louvers caused more light reduction. Furthermore, the simulation effects of shaders parameter's include depth and distance being examined and analyzed, it seemed that the distance between louvers in this case and in Tabriz is more important variable and moreover, using reflective material or coating on louver’s surface as there are many weeks are overcasting theirs in Tabriz can help and improve internal light autonomy. The optimal cases that were obtained for north façade windows are horizontal louvres with a depth of 5 and a distance of 190 cm and vertical louvres with a depth of 15 cm and a distance 200 cm. In south facade are horizontal louvres with a depth of 13 and a distance of 161 cm and vertical louvres with a depth of 14 cm and a distance of 153 cm.

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