Study On Energy Efficiency Of Lighting In Library Reading Room

Library is the collection and distribution center of literature information resources,the hub of disseminating literature information resources,and the necessary infrastructure of a university,a city and even a country.Generally speaking,the lighting load of the library accounts for a large proportion of its total power consumption.According to the data and research,we can know that there are many problems of lighting energy efficiency in the library.We can see the importance and urgency of the research on lighting energy efficiency in the library.Based on the investigation and summary of 57 reading spaces in more than a dozen libraries in China,this paper sums up the space size,table and chair layout,types and quantity of lamps and lanterns as well as other relevant parameters of general reading rooms and open reading rooms.Then use DIALux Evo software to simulate the lighting status of two kinds of reading space in the library according to the above statistical results.Secondly,Then the lighting simulation of the two reading spaces in three modes is carried out respectively:Using high efficiency lamps and lanterns and light sources;using reasonable lighting mode,that is,using mixed lighting,under the premise of general lighting,using local lighting for desktop and bookcase;and using advanced lighting control system,i.e.zoning control and induction control.During this period,the three aspects are studied in a unified way.Through continuous optimization and combination,the energy-saving design of Library lighting is carried out to the maximum extent.Then the power consumption after each optimization is analyzed and compared with the original model of the library reading room,and the effect of each optimization mode on lighting energy saving is analyzed.Finally,the relationship between variables and power consumption is deduced into functional formulas,and according to the functional formulas,some reasonable suggestions for energy saving of Library lighting are put forward.Through the simulation results and energy consumption analysis in this paper,we can get the proportion of the influence of three optimization measures on lighting energy efficiency.According to the deduced function formula and the reasonable suggestions on energy saving put forward by its influencing variables,we canoptimize the lighting energy saving design of the library in the new era,and put forward effective solutions to the existing lighting problems.On the premise of meeting the lighting standards to achieve maximum lighting energy saving,this paper puts forward some guiding suggestions for energy saving design of Library lighting,and contributes to the national environmental protection and energy efficiency industry.