NDLI: Development of a PM$_{2.5}$ sampler with inertial impaction for sampling airborne particulate matter

Content Provider	Springer Nature Link
Author	Intra, Panich Yawootti, Artit Vinitketkumnuen, Usanee Tippayawong, Nakorn
Copyright Year	2012
Abstract	A simple and low cost PM$_{2.5}$ impactor for sampling airborne particulate matter was developed, designed and evaluated. The design was an assembly of an acceleration nozzle and an impaction plate. Particles with sufficient inertia were unable to follow air streamlines and impacted on the plate. Smaller particles followed the streamlines, avoided being captured by the plate and could then be collected on a downstream filter. Analytical and numerical models were formulated to predict collection efficiency, flow fields and vectors, and particle trajectories in the impactor. The modeling suggested that an optimal operational domain exists for the PM$_{2.5}$ impactor. A prototype was then built and tested. The collected particles on the impaction plate and downstream of the PM$_{2.5}$ impactor were analyzed by using scanning electron microscopy. Experimental results agreed well with the theoretical predictions. Testing of the PM$_{2.5}$ impactor prototype showed promising results for this airborne particulate matter sampler.
Starting Page	1044
Ending Page	1049
Page Count	6
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	29
Issue Number	8
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2012-02-21
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Particulate Matter PM$_{2.5}$ Impactor Numerical Model SEM Materials Science Catalysis Biotechnology Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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