LED lighting energy-saving renovation plan - school classroom
The most important thing in the lighting of teaching buildings is classroom lighting. The general teaching forms are divided into formal teaching and interactive teaching. Formal teaching is mainly the communication between teachers and students, that is, teachers read lesson plans, observe students, write on the blackboard, students read books, Writing, looking at the words and pictures on the blackboard, watching the teacher's demonstration, etc. Interactive teaching increases the communication between students, and students should be able to see each other's expressions clearly. At present, in addition to the traditional blackboards and student areas in the teaching area, most of the classrooms use various forms such as projection. The school mainly focuses on daytime teaching, and effectively uses natural lighting to save energy.
Requirements for classroom photos:
(1) Meet the requirements of students for reading, writing, painting, etc., and ensure the horizontal and vertical illumination requirements of the visual target.
(2) Meet the requirements of face-to-face communication between students.
(3) To guide students to focus on the teaching or demonstration area.
(4) Lighting control adapts to different demonstration and teaching scenarios, and considers the influence of natural light.
(5) Satisfy color rendering, control glare, and protect eyesight.
Power density calculation:
(1) Area between samples: 8.2x7.1=58.22(m2)
(2) Total power of classroom lights: 8x56.7=453.6(w)
(3) Total power of blackboard light: 3x27.6=82.8(w)
(4) Total power of classroom lamps (including blackboard lamps): 453.6+82.8=536.4(w)
(5) Power density: 536.4÷58.22=9.214(w/m2) (measured value 8.6w/m2)
(6) Lighting and photometric data simulation
The simulation results are:
The classroom table maintains an average illuminance of 476 (lx) and an illuminance uniformity of 0.79
The blackboard surface maintains an average illuminance of 578 (lx) illuminance uniformity 0.82
The actual renovation process should be determined according to the actual situation of the classroom. The size of the classroom, the number of windows, etc. will affect the arrangement of lamps. When formulating the plan, we will formulate it according to the situation of the classroom and the requirements of customers to create the most suitable The classroom lighting transformation effect!
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