季节相关因素对大学教室内人体热舒适评价的影响

Effects of the Seasonal Characteristics on the Thermal Comfort Evaluation in the Classroom

教室热环境的舒适程度会直接影响学生的学习效率,因此教室环境的热舒适度一直是热舒适领域的研究重点。关注与季节相关的因素对高校教室热环境评价的影响。研究目的为:1)考察混合运行建筑不同季节的人体的热环境评价是否存在显著性差异; 2)明确哪些季节因素是影响热感觉评价的因素。基于ISO7730以及ASHRAE55的相关要求,以天津某高校典型教学楼为研究对象,分别在冬季采暖季和秋季过渡季进行实地测试,对室内热物理环境和主观热感觉评价同时进行了测试和评价。结果发现秋冬两季人们的主观热感觉投票值之间存在显著差异,同时发现停留时间、垂直温差与室外温度三个与季节相关的因素也显著影响人们对热环境的评价,其影响权重分别为18. 9%、40. 2%、41. 1%。

Thermal comfort is one of the most important factor for satisfying occupants＇ within indoor environments＇, and it directly affects＇ student＇s learning efficiency. In order to obtain a comprehensive understanding about the effects＇ of the seasonal characteristics on the thermal comfort evaluation in classroom, a field investigation was conducted in typical university building in autumn and winter in Tianjin, China. During the onset environmental parameter measurements＇, the subjects＇ were interviewed on their thermal responses. Based on the analysis of the data collected from the field study, the results＇ showed that the neutral temperatures of occupants＇ were different in winter and autumn. At the same time, three seasonrelated factors such as the dwell time, vertical temperature difference and outdoor temperature also significantly affect people＇s assessment of the thermal environment, with the influence weights of 18. 9%, 40. 2% and 41. 1% respectively.