NDLI: Development of a Compact Electrostatic Nanoparticle Sampler for Offline Aerosol Characterization

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Experimental Facilities to Monitor Various Types of Atmospheric Parameters in the Radio and Atmospheric Sciences Division (RASD) of CSIR-National Physical Laboratory

The Effect of Nanoparticle Morphology on the Measurement Accuracy of Mobility Particle Sizers

Development of a Compact Electrostatic Nanoparticle Sampler for Offline Aerosol Characterization

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MAPAN : Volume 28, Issue 2, June 2013

MAPAN : Volume 28, Issue 1, March 2013

Development of a Compact Electrostatic Nanoparticle Sampler for Offline Aerosol Characterization

Content Provider	Springer Nature Link
Author	Jing, He He, Siqin Ou, Qisheng Hsiao, Ta Chih Chen, Da Ren
Copyright Year	2013
Abstract	A compact electrostatic nanoparticle sampler has been developed to support the offline analysis of nanoparticles via electron microscopy. The basic operational principle of the sampler is to electrically charge particles by mixing nanoparticles and unipolar ions produced by DC corona discharge, and electrostatically collecting charged particles. A parametric study was first performed to identify the optimal operating condition of the sampler: a total flow rate (i.e., the sum of the particle and ion carrier flow rates) of 1.0 lpm, an aerosol/ion carrier flow rate ratio of 1.0, and a collection voltage of 4.5 kV. Under the above condition, the sampler achieved a collection efficiency of more than 90 % for particles ranging from 50 to 500 nm. The effect of particle material on the sampler’s performance was also studied. The prototype had lower collection efficiencies for oleic acid particles than for sodium chloride particles in the size range from 50 to 150 nm, while achieving a comparable efficiency in the size range large than 150 nm. Effects of particle diameter, particle material, and total flow rate on the sampler’s collection efficiency are explained by the particle charging data, i.e., charging efficiencies and average charges per particle.
Starting Page	217
Ending Page	226
Page Count	10
File Format	PDF
ISSN	09703950
Journal	MAPAN
Volume Number	28
Issue Number	3
e-ISSN	09749853
Language	English
Publisher	Springer India
Publisher Date	2013-09-24
Publisher Institution	Metrology Society of India
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Particle sampler Electrostatic precipitation Collection efficiency Measurement Science and Instrumentation Theoretical, Mathematical and Computational Physics Mathematical Methods in Physics Numerical and Computational Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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