Investigation and analysis on the illumination of the university classroom

Abstract

Abstract. Appropriate classroom lighting environment in universities should be able to meet the needs of the students physical and mental, and it has the practical significance to improve the student' vision, physical and mental health and learning efficiency. The paper uses the subjective and objective research method to investigate and analyse the present illumination situation of the university classroom based on the national standard of the <Architectural Lighting Design Standards>：GB50034-2013. According to the research results, we put forward the improvement scheme of the automatic control mode of the four kinds of classroom illumination and add the blackboard lamps, and then use the DIALux software to simulate the improvement effect, and obtain the energy saving benefit analysis table, so we can provides the program and data support for the classroom lighting. The introductionAccording to the research center of China healthy development in Peking University, Adolescent myopia prevalence has been ranked the first in the world[1].The < 2010 national physique monitoring result bulletin of Beijing> shows:the eyesight unqualified rate of junior high school students reaches 71%, the high school students is 81%,the college students is as high as 90%, More important is that the level continues to grow [2]. Therefore, the influence of the classroom lighting conditions on the students' vision becomes increasingly visible.The classroom is the main place for students to study in school, and the classroom lighting constitute the artificial light environment for students to study . Human visual activity is closely related with the activities of the whole organism and higher nervous system. When the lighting environment is not suitable for vision of people, the visual efficiency declined significantly. This will not only affect visual fatigue, myopia, central nervous system ,but also the body activity will be subdued.Once appear this kind of situation,The students will feel exhausted of body and mind and the attention is susceptible to interference.So,it will reduce the learning efficiency. Good classroom lighting design should be able to meet the needs of the students physical and mental and suitable for students for a long period to study and work. It not only has the appropriate illuminance value, but also the all the parameters should meet the requirements of lighting quality.This will provide better lighting environment [3]. Therefore, the suitable university classroom lighting environment to improve the students' vision, physical and mental health and learning efficiency has important practical significance [4]. School building lighting design standard [5]In order to guarantee on the work needed for visual brightness and brightness contrast [6], the national ministry of construction term definition and standard of architectural lighting design indexes.Illumination. The value of the luminous flux per unit area, name as :E = dΦ/dA. The amount of the symbol for the E, the unit for lux (lx), 1 lx = 1 lm/m2. Intensity ...

Measuring the Lighting Quality in Academic Institutions: The UPM Faculty of Aerospace Engineering (Spain)

“…Many of the studies on lighting similar to the present one found in the available literature were conducted using DIALux ® [8,[19][20][21][22][23], although it seems that there are many possibilities when it comes to lighting simulation tools [26][27][28][29]. However, leaving aside some works related to validation of lighting analysis software [30][31][32][33], there seems to be a lack of studies evaluating the accuracy in the prediction of actual lighting results.…”

“…The importance of proper lighting conditions (i.e., visual comfort) at academic institutions has been emphasized at all levels, from elementary, primary, and secondary education schools [1][2][3][4][5][6] to university faculties [7][8][9][10][11][12][13][14][15][16]. In general, it can be said that comfort in academic environments has been widely analyzed as it has important effects on learning.…”

“…In the available literature, some examples were found of lighting analysis in classrooms and other academic environments [8,[18][19][20][21][22][23]. Some of these focused mainly on energy costs and efficiency [18,20,21,23], as lighting represents about 20% of the world's demand for electrical energy production [23].…”