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Effect of the flow structure on the indoor deposition of particulate matter

Authors
Kim, Jeong JaeKim, HyejeongKim, JeongjuLee, IngyuKim, HyunookLee, Sang Joon
Issue Date
8월-2022
Publisher
SPRINGER
Keywords
Particulate matters; PM deposition; Flow structure; PIV; Air pollution; Indoor air quality
Citation
JOURNAL OF VISUALIZATION, v.25, no.4, pp.741 - 750
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF VISUALIZATION
Volume
25
Number
4
Start Page
741
End Page
750
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/141156
DOI
10.1007/s12650-021-00825-4
ISSN
1343-8875
Abstract
Indoor air quality, especially in terms of particulate matter (PM), is a critical public health concern. Although various methods for removing indoor PM have been suggested, the effects of various influential factors on PM deposition have not been clearly understood. Here, the effect of the flow structure inside a test chamber on PM deposition was quantitatively investigated using flow visualization techniques. To elucidate the flow parameters that influence the PM deposition, the efficiency of PM removal and deposition constant were examined for different flow directions, flow velocities, and distances between the fan and the surface of the test chamber. The spatial distributions of the mean velocity and turbulence intensity inside the test chamber were obtained experimentally using a particle image velocimetry technique to understand the mechanism associated with PM deposition. The overall mean velocity, recirculating flow region, and turbulent intensity in the near-wall regions may partially explain the difference in the PM deposition under various flow conditions.
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