Study On The Improvement Of Lighting Design In The Library Of Guangzhou University

This article is in the direction of the development direction of the national construction industry and the direction of energy conservation and emission reduction.From the field measurement to the dynamic simulation measurement and measurement,the natural natural light environment of the reading room of the library building in Guangzhou area is optimized and transformed.The influence factors of the natural light environment in the large space reading room were quantitatively studied on material reflectivity,spatial size,shading type,and the size of the daylight outlet,and the favorable factors and unfavorable factors for the natural light environment of the large space reading room were analyzed.Based on this as a basis,the natural light environment of the reading room of the Guangzhou University Library was simulated and transformed,and a reform program with applicability and economy was proposed.The research concept of this article is to find out the factors that truly affect the quality of natural light collected through the simulation of measured data in the natural light environment,and use this as a basis to change the design mistakes that used the empirical data as design criteria,and pass through the Guangzhou area.The research and simulation of the natural light environment of the library provide adaptable research and transformation ideas for the follow-up natural light environment simulation research work in other regions and other natural light environment improvement projects,responding to energy-saving thoughts of low-carbon buildings.The article is mainly divided into four parts.The first part is the first chapter and the second chapter.The first chapter introduces the research background and concept of the paper.Establish the scope of the study The factors affecting the light environment,such as the material reflectivity,spatial size,shading form,and the size of the daylight entrance,are considered in the reading room of the Guangzhou University Library.Compare the research progress of natural light in domestic and foreign papers and find out what has not been studied.Put forward the research framework and corresponding research methods of the article.The second chapter summarizes the evaluation methods of building natural lighting,the actual measurement methods and the conclusionsrelated to human physiological health,and provides the basis for follow-up field measurements and simulation tests.The second part is the third and fourth chapters.The third chapter initially investigated the overall lighting conditions and deficiencies of the Guangzhou University Library,designed a lighting experience questionnaire,conducted surveys on 300 students in different use environments,and summarized students’ overdense and overexposure of the Guangzhou University Library.The reading experience of the area provides the basis for the selection of typical measurement objects for field measurements.The fourth chapter conducts on-site measurement of four typical objects—two reading rooms for lighting in the north and south,an open reading space,and a reading room for lighting in the north.The measurement plan for field measurements is designed,and the measured data are obtained.Provides the basis for the accuracy of the subsequent computer model.The third part is the fifth chapter and the sixth chapter,which is the main research content of this article.The fifth chapter uses ECOTECT to establish a simplified model with accuracy and set all parameters of the model to standard values.Using the single-variable method,DAYSIM,a dynamic simulation lighting software,is applied to the eight factors that affect the natural daylighting environment of buildings: shelter height,indoor net height,sill height,lintel height,window type and size,lighting well size,ceiling floor wall The reflectivity and shading form of the material were analyzed in a large scale,and 588 sets of simulated data were obtained,with about 12 million simulated points.The conclusions of these factors affecting the effective lighting area and the effect of lighting stability were obtained.The sixth chapter proposes a simulation reconstruction program for the Guangzhou University Library.Through the simulation analysis of the natural lighting problems of the four typical objects,compare the improved data and improvement direction obtained in Chapter 5,improve the effective lighting area,improve the lighting stability and The comprehensive simulation of three areas of overexposure areas was reduced,and the energy-saving effects before and after improvement were analyzed,and the improvement schemes and improvement effects that were feasible and economical were obtained.The fourth part is the seventh chapter,summarizing the degree of influence of the naturallighting environment influencing factors simulated by the single variable method,and presenting the inadequacies of designing the natural light environment through empirical data and simple formulas.Analyzed and summarized the feasibility of natural lighting improvement in Guangzhou University Library.A common process for retrofitting existing buildings was proposed.Finally,the deficiencies of the article and the prospects for future research are put forward.