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Effect of horizontal inlet on slit-nozzle virtual impactor performance
- Authors
- Heo, Ji-Eun; Zahir, Muhammad Zeeshan; Park, Hyunjin; Seo, Jeonghyun; Park, Hyeongjun; Yook, Se-Jin
- Issue Date
- May-2018
- Publisher
- KOREAN SOC MECHANICAL ENGINEERS
- Keywords
- Aerosol; Virtual impactor; Collection efficiency; Wall loss; Stokes number
- Citation
- JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.32, no.5, pp.2419 - 2424
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
- Volume
- 32
- Number
- 5
- Start Page
- 2419
- End Page
- 2424
- ISSN
- 1738-494X
- 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 μm to 2.08 μm while the PM10 virtual impactor decreased the cut-off size by 22 % from 10 μm to 7.8 μm. 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.
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Related Researcher
- Yook, Se Jin
- COLLEGE OF ENGINEERING (SCHOOL OF MECHANICAL ENGINEERING)