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Effect of horizontal inlet on slit-nozzle virtual impactor performance

Title
Effect of horizontal inlet on slit-nozzle virtual impactor performance
Author
육세진
Keywords
Aerosol; Virtual impactor; Collection efficiency; Wall loss; Stokes number
Issue Date
2018-05
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Citation
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v. 32, no. 5, page. 2419-2424
Abstract
We observed variations in collection efficiency and wall loss in a virtual impactor by applying a horizontal inlet. A parametric study on the dimensions of the horizontal inlet was conducted to determine the shape that could maximize the collection efficiency and minimize the wall loss. As a conventional vertical inlet was replaced by a horizontal inlet, the PM2.5 virtual impactor decreased the cut-off size by 17 % from 2.5 mu m to 2.08 mu m while the PM10 virtual impactor decreased the cut-off size by 22 % from 10 mu m to 7.8 mu m. The application of a horizontal inlet significantly reduced the wall loss for a particle size corresponding to a particular cut-off size, overcoming the problem with the existing virtual impactor.
URI
https://link.springer.com/article/10.1007%2Fs12206-018-0454-8https://repository.hanyang.ac.kr/handle/20.500.11754/118799
ISSN
1738-494X; 1976-3824
DOI
10.1007/s12206-018-0454-8
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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