Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/34688
Title: EQUALIZING DAYLIGHT DISTRIBUTION IN BUILDINGS - OPTIMIZATION OF THE INNER REFLECTOR AND BOTTOM PANEL OF A LIGHT-DUCT
Authors: YANG XIAOMING
Keywords: Daylighting,optimization, light-duct, parametric design, radiance, grasshopper
Issue Date: 30-Mar-2012
Source: YANG XIAOMING (2012-03-30). EQUALIZING DAYLIGHT DISTRIBUTION IN BUILDINGS - OPTIMIZATION OF THE INNER REFLECTOR AND BOTTOM PANEL OF A LIGHT-DUCT. ScholarBank@NUS Repository.
Abstract: The thesis aims to address the problem of the optimization of daylighting performance of horizontal light-ducts to achieve uniform daylight distribution in a typical office space. After investigation of the current horizontal light-duct, the opening design on the bottom panel and inner reflector are chosen as the objects to optimize. The design objects are modeled parametrically and optimized with a tool chain developed for this thesis. The daylight performance of designs options are evaluated with the tool chain and parameters which form the models are optimized using evolutionary algorithm. The optimization result is promising: both of the absolute value of horizontal illuminance and uniformity of light distribution increase. The optimized light-duct design is fabricated with a 1:5 scale model which is measured in an optical lab. The measurement result confirms the findings in the optimization process.
URI: http://scholarbank.nus.edu.sg/handle/10635/34688
Appears in Collections:Master's Theses (Open)

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