Research On Daylighting Multi-objective Optimization Tool Based On Visual And Nonvisual Effects

Natural light not only has visual effects,but also affects the human body’s circadian rhythm and mental health through non-visual effects.Therefore,in architectural design,not only the visual needs of natural lighting must be considered,but also the non-visual needs should be met.However,non-visual effects are significantly different from visual effects in terms of response mechanism,influencing factors,evaluation criteria,etc.,resulting in different design factors that have different effects on vision and non-visual effects under the same conditions.Therefore,it is necessary to organically link the two,Carry out a comprehensive evaluation.However,there is a lack of optimization design tools that can effectively link visual and non-visual effects and are suitable for architects.This research attempts to start from the perspective of both visual and non-visual daylighting optimization research,select appropriate evaluation indicators,and build a set of multi-objective optimization tools for daylighting vision and non-visual effects that can be applied to different climate zones and different building types.The non-visual effects are effectively related.The optimization tool integrates 4 functional modules of boundary condition input,visual and non-visual joint simulation calculation,visual and non-visual multi-objective optimization,and result output and analysis.12 calculation components are written through GHpython for data processing and visual expression.Realize a series of workflows from visual and non-visual lighting calculations to output of multi-objective optimization schemes.This research also takes two actual buildings in Nanjing as the object.Based on field measurement,the optimization tool is used for multi-objective optimization of visual and non-visual effects under different orientations,different climate zones,different building types,and different lighting modes..Among them,in the 4 groups of experiments with different orientation conditions,the optimization rate of visual and non-visual targets is above 8%,indicating that the optimization tool can achieve multi-objective optimization of visual and non-visual lighting under different orientations.In the 5 groups of experiments in different climate zones,the optimization rates of visual and non-visual targets are all above 4.8%,and the difference in optimization rates of each climate zone is within 3%,indicating that the optimization tool can achieve visual and non-visual lighting in different climate zones Multi-objective optimization,while the optimization results are not significantly affected by regional changes.In the three experiments of different building types,the average optimization rate of visual and non-visual targets is about 6%,and the average optimization rate of non-visual indicators is quite different,indicating that the optimization tool can achieve multiple goals of visual and non-visual lighting for different building types Optimization,but the optimization results are greatly affected by the different viewing directions of each building type.In the application research of different daylighting modes,comparing the visual and non-visual daylighting multi-objective optimization results with the traditional optimization results that only consider visual daylighting,it is found that there are certain differences between the two optimization results.The results of the application research show that the optimization tool can perform multi-objective optimization of the actual building with both visual and non-visual lighting under a variety of different application conditions,and realize the optimization calculation and program output.It has certain applicability and practical value.This research uses multi-objective optimization to study daylighting optimization that takes into account daylighting vision and non-visual effects,and constructs auxiliary tools for visual and non-visual optimization design of architectural daylighting,providing new ideas and methods for visual and non-visual correlation research.This research helps architects to take a more comprehensive consideration of natural lighting from visual and non-visual perspectives,and has a certain role in promoting the creation of a comfortable and healthy architectural lighting environment.The whole thesis contains about 72 000 words,200 pictures and charts.