基于眩光评价的多媒体教室采光节能优化设计研究

Optimization Design of Daylighting and Energy Saving in Multimedia Classroom Based on Glare Evaluation

为解决多媒体教室在天然采光过程中出现大面积刺眼的眩光,影响到采光质量的问题,应用达标面积百分比和达标时间百分比两个量化评价指标,通过数值模拟方法,对多媒体教室侧窗窗口和窗口遮阳方式进行了系统地动态对比模拟分析,从中得出最佳的多媒体教室天然采光优化设计策略,尽可能使多媒体教室的天然采光眩光降低或避免不良的影响,在现有建筑基础上有效改善当前教学空间光环境,减少能源的浪费,为教师和学生提供健康、绿色生态的光环境。

In order to solve the problem that a large area of dazzling glare appears in the course of natural lighting in multimedia classroom and affects the quality of lighting,two quantitative evaluation indexes,i. e. the percentage of the area and the percentage of the time to reach the standard,are applied. By means of numerical simulation,a systematic dynamic comparative analysis of the side window and window shading modes of multimedia classroom is carried out,from which the best multimedia teaching is obtained. The optimum design strategy of natural daylighting in the classroom can reduce or avoid harmful effects as far as possible. On the basis of the existing buildings,it can effectively improve the light environment of the current teaching space,reduce the waste of energy,and provide a healthy and green ecological light environment for teachers and students.