A 10 μm Outpoint Size Selective Inlet for Hi-Vol Samplers
Open Access
- 1 May 1984
- journal article
- research article
- Published by Taylor & Francis in Journal of the Air Pollution Control Association
- Vol. 34 (5) , 544-547
- https://doi.org/10.1080/00022470.1984.10465773
Abstract
A Two-stage Size Selective Inlet for use with hi-vol samplers was designed and tested. The inlet, which operates at a flow rate of 1.13 m3/min, is shown to have a cutpoint of 9.8 μm and a fractionation curve slope of 1.45. The cutpoint is well within the EPA suggested limits of 10 ± 1 μm. Fractionation is not affected by wind speed over the test range of 2-24 km/h. Re-entrainment or bounce of solid particles is not of consequence. The difference in penetration of 20 μm aerodynamic diameter glass beads and liquid aerosols is less than 1% at all wind speeds.Keywords
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