南京某教室春季室内热舒适度调查分析

Investigation and Analysis of Indoor Thermal Comfort of a Classroom in Nanjing in Spring

本文对南京地区某教室春分日后,室内热环境参数和CO2浓度进行了测量,并结合调查问卷进行热舒适度分析。通过预计平均热感觉指标PMV计算,发现该教室春季热环境基本属于热舒适范围。热感觉投票值TSV与预计平均热感觉指标PMV具有一致性,但投票值TSV会比PMV值稍低,是非人工调节环境以及人的主观期待及适应性原因造成的。由于师生的存在,教室的CO2浓度会随着教学活动而升高。在过渡季,由于人们主要利用门窗开闭来对热环境进行调节,因此CO2浓度也会存在差异,可以尝试加装新风系统来提高空气质量。

In this paper,indoor thermal environment parameters and CO2 concentration were measured in a classroom in Nanjing area after the Spring Equinox,and thermal comfort analysis was carried out in combination with a questionnaire.By calculating the predicted average thermal sensation index PMV(Predicted Mean Vote),it is found that the thermal environment of the classroom in spring is basically within the range of thermal comfort.The voting value of thermal sensation TSV(Thermal Sensation Vote)was consistent with the predicted average thermal sensation index PMV,but the voting value TSV was slightly lower than the PMV,which was due to the non-manual adjustment environment and people’s subjective expectation and adaptability.Due to the presence of teacher and students,the CO2 concentration in the classroom will increase with the teaching activities.In transition season,people mainly adjust the thermal environment by opening or closing doors and windows,so there will be differences in CO2 concentration.Thus,we can try to use fresh air system to improve air quality.