Effect of a Horizontal Inlet on the Collection Efficiency of a Rectangular-Slit-Nozzle Impactor
- Authors
- Kim, Won-Geun; Lee, Handol; Myoung, Ju-Ho; Han, Sang-Ki; Yook, Se-Jin; Ahn, Kang-Ho
- Issue Date
- Jun-2014
- Publisher
- Taylor & Francis
- Keywords
- LOW-PRESSURE IMPACTOR; INERTIAL IMPACTORS; PERFORMANCE; PLATES
- Citation
- Aerosol Science and Technology, v.48, no.6, pp.649 - 654
- Indexed
- SCIE
SCOPUS
- Journal Title
- Aerosol Science and Technology
- Volume
- 48
- Number
- 6
- Start Page
- 649
- End Page
- 654
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/22793
- DOI
- 10.1080/02786826.2014.910592
- ISSN
- 0278-6826
- Abstract
- A horizontal inlet was employed to improve the collection efficiency of a rectangular-slit-nozzle impactor. A numerical and experimental study of the collection efficiency of rectangular-slit-nozzle impactors, with either typical inlets or horizontal inlets, was conducted. In the comparison of typical inlet impactors and horizontal-inlet impactors, parameters such as the nozzle width, impaction plate width, nozzle-to-plate distance, and aerosol flow rate were held constant, and only the inlet shape was changed. A parametric study was conducted to examine the effects of the horizontal inlet dimensions on the collection efficiency of rectangular-slit-nozzle impactors. It was found that a horizontal inlet could reduce the square root of the Stokes number corresponding to the cutoff size from 0.77 to 0.60, compared with a typical inlet. Copyright 2014 American Association for Aerosol Research
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