Measuring Air Exchanges Rates Using Continuous CO2 Sensors
Measuring Air Exchanges Rates Using Continuous CO2 Sensors
复制标题
使用连续 CO2 传感器测量空气交换率
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Jingjing Zhang
中科院分区：
文献类型：
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作者：
Y. You;Z. Bai;Chunrong Jia;Zhaofeng Wan;Wenting Ran;Jingjing Zhang
摘要以有效、实时、简单和低成本的方式测量空气污染比仍然是一个挑战，特别是在中国，那里的房间通常是自然通风的，但没有暖通、通风和空调系统。通过室内实验和现场研究，验证了一种基于连续CO2传感器的AER监测新方法。控制的实验室模拟试验在1m³环境舱中进行，在不同的空气比(0.1~10.0hr-1)下进行。在箱形模型假设的基础上，分别用稳态法和衰减法确定了AERS。现场测试是在北京的公寓、办公室、教室、宿舍和会议室进行的，在3-5个工作日，使用四套传感器和数据记录器。统计结果表明，该系统取得了良好的实验室性能。尽管存在局限性，这种新方法与提供足够连续数据的小型和易于操作的仪器一起，展示了一种在不同室内环境下测量AER的有效方法。
SUMMARY Measuring AERs in an effective, real-time, easy and low-cost way is still a challenge, especially in China where rooms were usually naturally ventilated but not with the Heating, Ventilating and Air Conditioning (HVAC) system. A new AER monitoring method using continuous CO2 sensor was validated through both laboratory experiments and field studies. Controlled laboratory simulation tests were conducted in a 1 m³ environmental chamber at different AERs (0.1~10.0 hr -1 ). AERs were determined using steady-state method and decay method based on box model assumptions. Field tests were conducted in apartments, offices, classrooms, dormitories and meeting rooms in during 3-5 weekdays with four sets of sensors coupled with data loggers. Statistic results indicated that good laboratory performance was achieved. In spite of limitations, this new method, along with mini-sized and easily operational instrumentations which provide sufficient continuous data, demonstrated an effective way to measure AERs in various indoor environments.