Light Environment Evaluation and Optimization of College Classrooms from a Dual-Carbon Perspective

Abstract

Under the background of the country's vigorous advocacy of “carbon peaking and carbon neutrality”, in order to understand the current situation of the light environment of university classrooms and provide reference for the direction and measures of the improvement of university classrooms, this paper selected a typical classroom in a university in Henan province to carry out subjective and objective assessment of the light environment. Objectively, from two aspects of daylighting coefficient and artificial lighting measurement, the results show that the average illumination and evenness of the classroom are lower than the national standard value under the condition of natural lighting and night lighting. Subjectively, a questionnaire survey was conducted on the classroom light environment of the students who have used the classroom, and it was concluded that under both natural lighting and night lighting conditions, most of the students believed that the subjective feeling of the classroom light environment was poor, and the classroom light environment needed to be improved.In addition, the paper uses DIALux software to optimize the light environment according to the current situation, and simulates the current situation and optimization measures of the light environment of the classroom, so that the classroom can realize the requirements of energy saving while meeting the comfort of the indoor light environment.