The impact of thermal environment on occupant IEQ perception and productivity
The impact of thermal environment on occupant IEQ perception and productivity
复制标题
热环境对使用者室内环境质量感知和工作效率的影响
DOI：
10.1016/j.buildenv.2017.05.022
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发表时间：
2017-08-15
影响因子：
7.4
通讯作者：
Zhu, Yingxin
中科院分区：
文献类型：
--
作者：
Geng, Yang;Ji, Wenjie;Zhu, Yingxin
本文研究了热环境对乘员IEQ感知和生产力的影响。在受控的办公环境中进行了七组实验，测量了空气温度、地球温度、相对湿度、二氧化碳浓度、照度和背景噪声水平等物理参数。实验以室内空气温度为自变量，温度范围为16℃~ 28℃，步进为2℃，其他恒定的IEQ参数为控制变量。因变量将是人类对各种控制变量和生产力的感知。受试者（9名女性和12名男性）参加每个实验2小时。在每个实验中，他们对热舒适、室内空气质量、照明和声环境的看法进行投票，并进行模拟办公室任务以评估生产力。结果表明，热环境的变化不仅影响热舒适，而且对其他IEQ因素的感知也有“比较”影响。当热环境不满意时，会减弱对其他IEQ因素的“舒适期望”，从而导致对其他IEQ因素的不满程度降低。反之，当热环境相当满意时，提高了对其他IEQ因素的“舒适预期”，从而追溯性地降低了对其他IEQ因素真实性能的评价。建立了产量与热环境之间的定量关系。当人们感到“中性”或“微冷”时，工作效率达到最佳，热满意度的增加对工作效率有正向影响。(C) 2017 Elsevier Ltd.版权所有。
In this paper, the effects of thermal environment on occupant IEQ perception and productivity were studied. Seven groups of experiments were carried out in a controlled office environment and the physical parameters, including air temperature, globe temperature, relative humidity, carbon dioxide concentration, illuminance and background noise level, were measured. In the experiments, indoor air temperature was the independent variable, which varied from 16 degrees C to 28 degrees C with a step of 2 degrees C, and other constant IEQ parameters were the control variables. The dependent variable would be human perception of various control variables and productivity. Subjects (9 females and 12 males) were recruited to participate every experiment for 2 h. During each experiment, they voted their perceptions of thermal comfort, indoor air quality, lighting and acoustic environment, and performed simulated office tasks to evaluate the productivity. The results showed that the variation of thermal environment not only affected thermal comfort but also had a "comparative" impact on the perception of other IEQ factors. When thermal environment was unsatisfactory, it weakened the "comfort expectation" of other IEQ factors, which accordingly resulted in the less dissatisfaction with other IEQ factors. Conversely, when thermal environment was quite satisfying, it raised "comfort expectation" of other IEQ factors, which lowered the evaluation of the real performance of other IEQ factors retroactively. The quantitative relationship between productivity and thermal environment was established. The optimal productivity was obtained when people felt "neutral" or "slightly cool", and the increase of thermal satisfaction had a positive effect on productivity. (C) 2017 Elsevier Ltd. All rights reserved.