The Shape Simulation of Light Guide Components for Side Windows of Teaching Buildings in Northeast China
The distribution of natural light in the space of the educational building in Northeastern of China is severely uneven.Increasing the ratio of the window to ground just by the lighting calculation cannot improve indoor light environment,but light guide components is a practical and effective solution.A parameterized model of typical space in a classroom with light guide member was established by Ecotect software.The impacts of parameters for light guide member such as the internal and external positions,upper and lower positions,cross-sectional dimensions,cross-sectional morphology,and transmittance on the performance of lighting coefficient,illuminance,and daylighting uniformity are analyzed by the daylighting simulation analysis method.Through comparative analysis of simulated data,it was found that the optimal solution for achieving a balance between lighting illumination and uniformity was achieved when the light guide plate was located on one side of the side window,with a height of 2 400 mm,a cross-sectional width of 1 050~1 200 mm,and a curved inward section shape;the comprehensive performance of the horizontal inward inclined louver in the light guide louver is superior to other types.However the optimal scheme for the light guide plate is superior to the light guide louver in the comprehensive performance.So the light guide plate is the most suitable light guide component in the Northeast region.