室内散热器对悬浮颗粒物分布的影响

Effect of Indoor Radiator on the Distribution of Suspended Particulate Matter

为了研究散热器对室内颗粒物分布的影响,本文对一办公室内散热器上方和室内空气中的颗粒物浓度及粒径分布进行了实测。其间使用Grimm光学粒径谱仪监测了6种不同工况下的颗粒物分布,同时采用TSI8386A-M-GB风速仪对温度、相对湿度和风速进行了测试。结果表明,散热器上方颗粒物沉积快于室内空气中的颗粒物,尤其是对于粒径较小的颗粒物。散热器上方存在比室内空气中更多的大颗粒。此外,颗粒物浓度随温度的升高而降低,多数情况下随相对湿度的增加而增加。

In order to study the influence of radiator on the distribution of indoor particulate matter, this paper mea. sured the concentration and particle size distribution of particulate matter in the air above the radiator and indoor air in an office. In the meantime, Grimm optical particle size spectrometer was used to monitor the distribution of particu. late matter under six different conditions, and TSI8386A-M-GB anemometer was used to measure temperature, rela. tive humidity and wind speed. The results show that the deposition of particulate matter above the radiator is faster than that in the indoor air, especially for the particulate matter with smaller particle size. There are more large parti. cles above the radiator than in the indoor air. In addition, the concentration of particulate matter decreases with the increase of temperature, and increases with the increase of relative humidity in most cases.