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A new index combining thermal, acoustic, and visual comfort of moderate environments in temperate climates

机译:结合温带气候中温环境的热,声和视觉舒适性的新指标

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Students spend a lot of time at school, highlighting the great importance of providing comfortable conditions in educational buildings. Indoor environmental conditions are also related to student productivity and well-being, but Literature reviews mainly examine the effects of single parameters on human comfort, lacking in the evaluation of comfort combining different aspects, such as thermal, acoustic, and visual ones. The aim of the paper is to propose an index for the evaluation of the environmental comfort tacking into account thermal, acoustic, and lighting conditions. Seven university classrooms were investigated; measurements of environmental factors were performed including thermal, acoustic, and lighting parameters. Subjective evaluations were also carried out through survey questionnaires purposely elaborated. Three single indexes were proposed basing on the strongest correlation between questionnaires answer and experimental results: a Predicted Mean Vote Index for the thermo-hygrometric conditions, a Sound Index for the acoustic comfort, and a Visual Index for the lighting conditions. All the indexes are dimensionless and normalized in a 0-1 range: values next to 1 indicate good comfort conditions and values next to 0 indicate bad comfort conditions. On the basis of different weights given for the three aspects, a final combined comfort index was calculated for each classroom and compared with questionnaires results, in order to assess the methodology.
机译:学生在学校花费大量时间,突显了在教育建筑中提供舒适条件的重要性。室内环境条件也与学生的生产力和幸福感有关,但文献综述主要考察单个参数对人体舒适性的影响,但缺乏结合不同方面(如热,声学和视觉方面)的舒适性评估。本文的目的是提出一个评估环境舒适性的指标,并考虑到热,声和光照条件。调查了七个大学教室;环境因素的测量包括热,声和照明参数。还通过有针对性的调查问卷进行了主观评估。根据调查问卷答案和实验结果之间的最强相关性,提出了三个单一指标:针对温湿度条件的预测平均投票指数,针对声音舒适度的声音指标和针对照明条件的视觉指标。所有索引都是无量纲的,并且在0-1范围内进行了归一化:靠近1的值表示良好的舒适度,靠近0的值表示较差的舒适度。根据三个方面的不同权重,为每个教室计算最终的综合舒适度指数,并将其与问卷调查结果进行比较,以评估方法论。

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