Modeling And Researching Of Building External Shading Devices On Energy-efficient In Wuhan

Building energy consumption is one of the three main energy consumption, thusbuilding energy efficiency has become an important research topic in China. Buildingshade on the building energy conservation effect is remarkable, domestic researchscholars has achieved some results, but research has just focused on the way ofbuilding shade and the impact on indoor thermal environment, external shading effecton the room light conditions the lack of systematic Research. Therefore, the lack ofexternal shading devices affect the systematic study of indoor light environment.Wuhan belongs to a typical hot summer and cold winter region. Climaticconditions are very complex and shading design has a strong regional adaptability. Itcan not be copied, so the building exterior shading in Wuhan lack of quantitativeanalysis of relevant experimental data. This paper will use the method combining thecomputer software simulation and experimental validation. Based on externalsunshade shutter rotation Angle for shading effect modeling to achieve themulti-objective optimization for indoor comfort, energy saving and lighting.(1) Climate data acquisition of Wuhan, comprehensive analysis concluded thatrequire shade Wuhan summer months, and each window toward specific shading ontime.(2) Select a public building in Wuhan to outer shading modeling as the researchobject. Through the Shutter angle of rotation and the windows as control variables,the influence on the indoor intensity of illumination and temperature environmentexperimental data are obtained. Compared with the result of using Radiance software.(3) Using simulation, through external blinds and exposure to the radiation ofheat windows, draw the energy efficiency of different rotation angles of the externalblinds.The research results in this paper, to some extent, developed for the constructionexternal blinds automation control in Wuhan, the feasibility of providing experimentaldata.