Analysis And Optimization Of Natural Lighting Of Teaching Building In Changsha-Zhuzhou-Xiangtan Region

For university teaching buildings,natural light can not only create a bright and comfortable internal environment,but also delight people’s mood and create a healthy and harmonious learning atmosphere.With the continuous development of colleges and universities in China,the number of teaching buildings in colleges and universities is increasing,and the requirements for indoor environment comfort are getting higher and higher.But in the design of some teaching buildings there are short design cycle,natural lighting design is not reasonable.This also leads to the fact that in the case of sufficient natural light outside in the daytime,lighting equipment is often turned on inside to supplement the light,which not only increases the total energy consumption of the building,but also goes against the physical and mental health of students.Therefore,it is necessary to create a good light environment in the design of teaching buildings.Based on the light climate characteristics of changzhutan area,this paper conducted field research on four teaching buildings of three universities in this area,measured the illumination of typical scenes inside,and summarized the existing problems.The 8th teaching building of hunan university of science and technology was selected as the main research object.Firstly,the basic theory of natural lighting and the basic characteristics of university teaching buildings are summarized,and the basic forms of lighting in opposite Windows,skylights,atria and side atria are discussed.Secondly,the investigation process of the selected university teaching building was elaborated,and the investigation data were analyzed to find relevant problems and obtain the basic situation of natural lighting inside the teaching building in this area.Related theories and research in the above conclusion,on the basis of specific optimization simulation experiment scheme was designed,respectively is "research analysis","elements of mining","status quo of simulation" and "optimization design",the analysis on the present situation of natural light to simulate the three basic lighting elements on the quality of the interior light environment,respectively is: light mouth forms,different orientation,outside the window material transmission coefficient.At the same time,three optimization directions are put forward in the optimization scheme: changing the form of daylighting opening,replacing the material of outside window glass,and using daylighting auxiliary technology.According to the experimental process,the Ecotect natural light environment simulation and optimization experiment was carried out in the no.8 teaching building of hunan university of science and technology.Finally,by comparing the survey data with the computer simulation results,this paper summarizes the problem,summarizes the relevant solutions,obtains the optimal design strategy of natural lighting in different locations of university teaching buildings,obtains the final conclusion and puts forward the prospect.