Collection of liquid phase particles by microfabricated electrostatic precipitator

Beelee Chua, Anthony S. Wexler, Norman C. Tien, Debbie A. Niemeier, Britt A. Holmen

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A microfabricated electrostatic precipitator successfully demonstrated its airborne liquid phase particles precipitation functionality. The particles used in the experiments were polydispersed liquid phase oleic acid particles with sizes ranging from 30 nm to 300 nm. Two configurations with electrode gaps of 1.8 mm and 2.0 mm were tested at 2.2 kV and 2.6 kV, respectively. During the test, the microfabricated electrostatic precipitator was inserted into a flow chamber with an aerosol stream containing oleic acid particles. Particle precipitation is demonstrated via both visual observation and the measurement of the corona current during aerosol exposure. The corona current for the 2.0 mm electrode gap configuration was decreased by approximately 50% and the circuit resistivity is increased by the corresponding magnitude as the oleic acid particles precipitated during a 60 s exposure. The recovery of corona current is observed when the aerosol source is turned off. Wicking of precipitated oleic acid away from the collection grid to its anchoring feature is observed. The analytical and experimental corona current versus time elapsed during the aerosol exposure are calculated and compared. The discrepancy between the analytical and experimental corona currents is consistent with the observed wicking effect and variation in percent coverage on the collector grid by precipitating particles.

Original languageEnglish
Article number6553016
Pages (from-to)1010-1019
Number of pages10
JournalJournal of Microelectromechanical Systems
Volume22
Issue number5
DOIs
Publication statusPublished - 2013 Jul 12
Externally publishedYes

Fingerprint

Electrostatic precipitators
Oleic acid
Aerosols
Liquids
Particles (particulate matter)
Electrodes
Recovery
Networks (circuits)
Experiments

Keywords

  • Aerosol
  • Airborne particles
  • Corona discharge
  • Electrostatic precipitator
  • Microfabricated
  • Respirator
  • Sample collection

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Chua, B., Wexler, A. S., Tien, N. C., Niemeier, D. A., & Holmen, B. A. (2013). Collection of liquid phase particles by microfabricated electrostatic precipitator. Journal of Microelectromechanical Systems, 22(5), 1010-1019. [6553016]. https://doi.org/10.1109/JMEMS.2013.2262597

Collection of liquid phase particles by microfabricated electrostatic precipitator. / Chua, Beelee; Wexler, Anthony S.; Tien, Norman C.; Niemeier, Debbie A.; Holmen, Britt A.

In: Journal of Microelectromechanical Systems, Vol. 22, No. 5, 6553016, 12.07.2013, p. 1010-1019.

Research output: Contribution to journalArticle

Chua, Beelee ; Wexler, Anthony S. ; Tien, Norman C. ; Niemeier, Debbie A. ; Holmen, Britt A. / Collection of liquid phase particles by microfabricated electrostatic precipitator. In: Journal of Microelectromechanical Systems. 2013 ; Vol. 22, No. 5. pp. 1010-1019.
@article{d267495bbfe140a1a3a1e61c2d5581da,
title = "Collection of liquid phase particles by microfabricated electrostatic precipitator",
abstract = "A microfabricated electrostatic precipitator successfully demonstrated its airborne liquid phase particles precipitation functionality. The particles used in the experiments were polydispersed liquid phase oleic acid particles with sizes ranging from 30 nm to 300 nm. Two configurations with electrode gaps of 1.8 mm and 2.0 mm were tested at 2.2 kV and 2.6 kV, respectively. During the test, the microfabricated electrostatic precipitator was inserted into a flow chamber with an aerosol stream containing oleic acid particles. Particle precipitation is demonstrated via both visual observation and the measurement of the corona current during aerosol exposure. The corona current for the 2.0 mm electrode gap configuration was decreased by approximately 50{\%} and the circuit resistivity is increased by the corresponding magnitude as the oleic acid particles precipitated during a 60 s exposure. The recovery of corona current is observed when the aerosol source is turned off. Wicking of precipitated oleic acid away from the collection grid to its anchoring feature is observed. The analytical and experimental corona current versus time elapsed during the aerosol exposure are calculated and compared. The discrepancy between the analytical and experimental corona currents is consistent with the observed wicking effect and variation in percent coverage on the collector grid by precipitating particles.",
keywords = "Aerosol, Airborne particles, Corona discharge, Electrostatic precipitator, Microfabricated, Respirator, Sample collection",
author = "Beelee Chua and Wexler, {Anthony S.} and Tien, {Norman C.} and Niemeier, {Debbie A.} and Holmen, {Britt A.}",
year = "2013",
month = "7",
day = "12",
doi = "10.1109/JMEMS.2013.2262597",
language = "English",
volume = "22",
pages = "1010--1019",
journal = "Journal of Microelectromechanical Systems",
issn = "1057-7157",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "5",

}

TY - JOUR

T1 - Collection of liquid phase particles by microfabricated electrostatic precipitator

AU - Chua, Beelee

AU - Wexler, Anthony S.

AU - Tien, Norman C.

AU - Niemeier, Debbie A.

AU - Holmen, Britt A.

PY - 2013/7/12

Y1 - 2013/7/12

N2 - A microfabricated electrostatic precipitator successfully demonstrated its airborne liquid phase particles precipitation functionality. The particles used in the experiments were polydispersed liquid phase oleic acid particles with sizes ranging from 30 nm to 300 nm. Two configurations with electrode gaps of 1.8 mm and 2.0 mm were tested at 2.2 kV and 2.6 kV, respectively. During the test, the microfabricated electrostatic precipitator was inserted into a flow chamber with an aerosol stream containing oleic acid particles. Particle precipitation is demonstrated via both visual observation and the measurement of the corona current during aerosol exposure. The corona current for the 2.0 mm electrode gap configuration was decreased by approximately 50% and the circuit resistivity is increased by the corresponding magnitude as the oleic acid particles precipitated during a 60 s exposure. The recovery of corona current is observed when the aerosol source is turned off. Wicking of precipitated oleic acid away from the collection grid to its anchoring feature is observed. The analytical and experimental corona current versus time elapsed during the aerosol exposure are calculated and compared. The discrepancy between the analytical and experimental corona currents is consistent with the observed wicking effect and variation in percent coverage on the collector grid by precipitating particles.

AB - A microfabricated electrostatic precipitator successfully demonstrated its airborne liquid phase particles precipitation functionality. The particles used in the experiments were polydispersed liquid phase oleic acid particles with sizes ranging from 30 nm to 300 nm. Two configurations with electrode gaps of 1.8 mm and 2.0 mm were tested at 2.2 kV and 2.6 kV, respectively. During the test, the microfabricated electrostatic precipitator was inserted into a flow chamber with an aerosol stream containing oleic acid particles. Particle precipitation is demonstrated via both visual observation and the measurement of the corona current during aerosol exposure. The corona current for the 2.0 mm electrode gap configuration was decreased by approximately 50% and the circuit resistivity is increased by the corresponding magnitude as the oleic acid particles precipitated during a 60 s exposure. The recovery of corona current is observed when the aerosol source is turned off. Wicking of precipitated oleic acid away from the collection grid to its anchoring feature is observed. The analytical and experimental corona current versus time elapsed during the aerosol exposure are calculated and compared. The discrepancy between the analytical and experimental corona currents is consistent with the observed wicking effect and variation in percent coverage on the collector grid by precipitating particles.

KW - Aerosol

KW - Airborne particles

KW - Corona discharge

KW - Electrostatic precipitator

KW - Microfabricated

KW - Respirator

KW - Sample collection

UR - http://www.scopus.com/inward/record.url?scp=84885173269&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84885173269&partnerID=8YFLogxK

U2 - 10.1109/JMEMS.2013.2262597

DO - 10.1109/JMEMS.2013.2262597

M3 - Article

VL - 22

SP - 1010

EP - 1019

JO - Journal of Microelectromechanical Systems

JF - Journal of Microelectromechanical Systems

SN - 1057-7157

IS - 5

M1 - 6553016

ER -