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Title: Direct impact aerosol sampling by electrostatic precipitation

Abstract

The present disclosure provides apparatuses for collecting aerosol samples by ionizing an air sample at different degrees. An air flow is generated through a cavity in which at least one corona wire is disposed and electrically charged to form a corona therearound. At least one grounded sample collection plate is provided downstream of the at least one corona wire so that aerosol ions generated within the corona are deposited on the at least one grounded sample collection plate. A plurality of aerosol samples ionized to different degrees can be generated. The at least one corona wire may be perpendicular to the direction of the flow, or may be parallel to the direction of the flow. The apparatus can include a serial connection of a plurality of stages such that each stage is capable of generating at least one aerosol sample, and the air flow passes through the plurality of stages serially.

Inventors:
; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1237084
Patent Number(s):
9250162
Application Number:
13/963,331
Assignee:
UT-BATTELLE, LLC
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Aug 09
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 47 OTHER INSTRUMENTATION

Citation Formats

Braden, Jason D., Harter, Andrew G., Stinson, Brad J., and Sullivan, Nicholas M.. Direct impact aerosol sampling by electrostatic precipitation. United States: N. p., 2016. Web.
Braden, Jason D., Harter, Andrew G., Stinson, Brad J., & Sullivan, Nicholas M.. Direct impact aerosol sampling by electrostatic precipitation. United States.
Braden, Jason D., Harter, Andrew G., Stinson, Brad J., and Sullivan, Nicholas M.. Tue . "Direct impact aerosol sampling by electrostatic precipitation". United States. https://www.osti.gov/servlets/purl/1237084.
@article{osti_1237084,
title = {Direct impact aerosol sampling by electrostatic precipitation},
author = {Braden, Jason D. and Harter, Andrew G. and Stinson, Brad J. and Sullivan, Nicholas M.},
abstractNote = {The present disclosure provides apparatuses for collecting aerosol samples by ionizing an air sample at different degrees. An air flow is generated through a cavity in which at least one corona wire is disposed and electrically charged to form a corona therearound. At least one grounded sample collection plate is provided downstream of the at least one corona wire so that aerosol ions generated within the corona are deposited on the at least one grounded sample collection plate. A plurality of aerosol samples ionized to different degrees can be generated. The at least one corona wire may be perpendicular to the direction of the flow, or may be parallel to the direction of the flow. The apparatus can include a serial connection of a plurality of stages such that each stage is capable of generating at least one aerosol sample, and the air flow passes through the plurality of stages serially.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {2}
}

Works referenced in this record:

A Handheld Electrostatic Precipitator for Sampling Airborne Particles and Nanoparticles
journal, April 2010


Two-stage-type electrostatic precipitator re-entrainment phenomena under diesel flue gases
journal, January 1999


Electrostatic particle measurement
patent, December 2004


Portable liquid collection electrostatic precipitator
patent, October 2005


Electrostatic nozzle apparatus
patent, January 2007


Electrostatic sampler and method
patent, September 2008


Electrostatic precipitator
patent, January 2010


Airborne particulate sampler
patent, May 2012


Small area electrostatic aerosol collector
patent, March 2013