This paper uses a case study-based approach to comparatively evaluate the relationship between measured and perceived indoor environmental conditions in two office buildings, one naturally ventilated and one mechanically ventilated, located in south England. Environmental parameters (indoor and outdoor temperature and relative humidity, and indoor CO₂ concentration) were continuously monitored at 5-minute intervals over a 19-month period (March 2017 to September 2018). During this time, occupant satisfaction surveys (both transverse and longitudinal) recorded occupant perceptions of their working environment, including thermal comfort, resulting in approximately 5700 survey responses from the two case studies combined. In the NV office, CO2 levels were high (often >2000 ppm) and indoor temperature was both high (>27 °C) and variable (up to 8 °C change in a working day). In contrast, the MV office environment was found to operate within much narrower temperature, RH and CO₂ bands. This was particularly evident in the little seasonal variation observed in the CO₂ levels in the MV office (rarely above 1200 ppm); whereas in the NV office, CO₂ concentrations exceeded 2000 ppm on 12% of working days during the heating seasons and less than 1% in the non-heating season. Despite these differences in measured indoor environmental conditions, occupants’ overall satisfaction with their environment was similar in both buildings. Occupants of the NV building were found to be more tolerant of higher indoor temperatures while neutral thermal sensation corresponded to a higher indoor temperature, indicating the role of adaptation. This has important implications for energy use in managing the indoor environment.

中文翻译：

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在自然通风和机械通风的办公室环境中对测量和感知的室内环境条件的比较评估

本文使用基于案例研究的方法来比较评估位于英格兰南部的两栋办公楼（一处自然通风和一处机械通风）的实测室内环境条件与感知室内环境条件之间的关系。环境参数（室内和室外温度和相对湿度以及室内CO ₂在19个月内（2017年3月至2018年9月）以5分钟间隔连续监测。在此期间，乘员满意度调查（横向和纵向）记录了乘员对工作环境的感知，包括热舒适度，这两个案例研究相结合得出了大约5700项调查响应。在NV办事处，CO2含量很高（通常> 2000 ppm），室内温度也很高（> 27°C），并且变化很大（一个工作日内最高变化8°C）。相反，发现中压办公环境在较窄的温​​度，RH和CO ₂波段内运行。在CO _2中观察到的季节性变化很小的情况下，这一点尤其明显。中压办公室的水平（几乎高于1200 ppm）；而在NV办公室，供暖季节12％的工作日内CO ₂浓度超过2000 ppm，而非供暖季节的CO ₂浓度低于1％。尽管在测量的室内环境条件上存在这些差异，但两座建筑物的居民对其环境的总体满意度相似。发现NV建筑物的居住者对较高的室内温度具有更高的容忍度，而中性的热感则对应较高的室内温度，这表明了适应的作用。这对于管理室内环境中的能源使用具有重要意义。