Optimization Strategies Of Indoor Daylight Environment In Traditional Dwelling In Southern Hebei Province

This paper takes the indoor light environment of traditional residential buildings in southern hebei province as the research object,studies the current situation and main problems of the light environment,and forms the optimization strategy of the light environment based on the software simulation technology.This topic mainly includes the following three aspects: firstly,the indoor light environment of traditional villages in the southern hebei mountains was measured on the spot,and the main problems in the indoor light environment were obtained by analyzing the data,and the existing problems were quantitatively analyzed.Then,according to the selected typical residential cases,a 1:1 residential model is established.Daysim,a dynamic light environment simulation software,was used to carry out simulation experiments on the model of residential houses in southern hebei province.The design parameters of courtyard design,residential building skin and indoor material were taken as variables to study the optimization strategy of indoor light environment.Finally,the optimization strategies of residential light environment in southern hebei province were proposed based on the three objectives of the maximum amount of light,the minimum effect of indoor glare,and the best evenness of indoor lighting.The main conclusions of this paper are as follows:First,the analysis of the influence of parameter changes of different technologies on indoor light environment shows that,for the three variables of wing room height,yard width and window-wall ratio,the influence degree is greater when the parameter value is small.When the values of two variables,window transmittance and wall material,are larger,the influence degree is greater.Secondly,the optimization strategy of lighting under different objectives is proposed for the reconstruction of residential buildings.If with indoor daylighting amount the most sufficient first consideration improves metope reflectivity;The second choice is to improve the light transmittance of Windows.Choose again for raising window-wall ratio.In order to improve the illumination and minimize the glare effect,the adjustment of interior design parameters should be considered first.Secondly,the height of wing room was reduced.Again to improve window transmittance,need to combine shading facilities.If be the target with evenness ofindoor daylighting optimal,should increase metope reflectivity first;Secondly,improve the light transmittance of Windows;Again for improving the surface reflectivity and the top reflectivity.Thirdly,for newly built dwellings,the optimal combination of seven variables is proposed according to three different target orientations.DA of the optimized model was greater than 75%,which was more than 48% higher than that of the control model.Compared with the control group,the DAmax model with the best uniformity orientation was 34% higher when DAmax was greater than 5%,and the DAmax model with the best illumination orientation was 63% higher when DAmax was greater than 5%.