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Simulation of Miniature PDMA for Ultrafine-Particle Measurement
- Source :
- Atmosphere, Vol 10, Iss 3, p 116 (2019), Atmosphere, Volume 10, Issue 3
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- The effect of the design and process parameters of a particle-classification zone on the sizing precision of a plate differential mobility analyzer (PDMA) was investigated by simulation software in this work. The design parameters consisted of the length, width, and height of the classification zone, and the process parameters could lead to height deviation and an uneven classification-zone wall. Prior to investigating the parameters, a comparison between experimental voltages and PDMA simulation results was applied to validate the simulation model. Thanks to velocity-field and particle-trajectory simulations, as well as experimental data from the former version of the PDMA, the dimensions of the classification zone and other key parameters were optimized. Our research shows that the dimensions of the classification zone influence the applied voltages and the measuring range of the PDMA, and range can be extended to 500 nm with low applied voltages after optimization. When the reasonable error range of the height is &plusmn<br />2% for the classification zone, the PDMA could basically achieve a classification role, and when it is &plusmn<br />1%, the PDMA has a better classifying effect.
- Subjects :
- Atmospheric Science
Work (thermodynamics)
Materials science
010504 meteorology & atmospheric sciences
simulation model
Acoustics
Process (computing)
010501 environmental sciences
Environmental Science (miscellaneous)
ultrafine particle
lcsh:QC851-999
computer.software_genre
01 natural sciences
Sizing
Simulation software
machining process
particle sizing
Differential mobility analyzer
Ultrafine particle
Range (statistics)
lcsh:Meteorology. Climatology
computer
0105 earth and related environmental sciences
Voltage
Subjects
Details
- Language :
- English
- ISSN :
- 20734433
- Volume :
- 10
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Atmosphere
- Accession number :
- edsair.doi.dedup.....83e2f187d1df8b9216b4d46ec9939c79