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Title: Focusing particle concentrator with application to ultrafine particles

Abstract

Technology is presented for the high efficiency concentration of fine and ultrafine airborne particles into a small fraction of the sampled airflow by condensational enlargement, aerodynamic focusing and flow separation. A nozzle concentrator structure including an acceleration nozzle with a flow extraction structure may be coupled to a containment vessel. The containment vessel may include a water condensation growth tube to facilitate the concentration of ultrafine particles. The containment vessel may further include a separate carrier flow introduced at the center of the sampled flow, upstream of the acceleration nozzle of the nozzle concentrator to facilitate the separation of particle and vapor constituents.

Inventors:
; ;
Publication Date:
Research Org.:
Aerosol Dynamics Inc., Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176502
Patent Number(s):
8,459,572
Application Number:
12/910,705
Assignee:
Aerosol Dynamics Inc. (Berkeley, CA)
DOE Contract Number:  
FG02-04ER86179
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jun 11
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 54 ENVIRONMENTAL SCIENCES

Citation Formats

Hering, Susanne, Lewis, Gregory, and Spielman, Steven R. Focusing particle concentrator with application to ultrafine particles. United States: N. p., 2013. Web.
Hering, Susanne, Lewis, Gregory, & Spielman, Steven R. Focusing particle concentrator with application to ultrafine particles. United States.
Hering, Susanne, Lewis, Gregory, and Spielman, Steven R. Tue . "Focusing particle concentrator with application to ultrafine particles". United States. https://www.osti.gov/servlets/purl/1176502.
@article{osti_1176502,
title = {Focusing particle concentrator with application to ultrafine particles},
author = {Hering, Susanne and Lewis, Gregory and Spielman, Steven R.},
abstractNote = {Technology is presented for the high efficiency concentration of fine and ultrafine airborne particles into a small fraction of the sampled airflow by condensational enlargement, aerodynamic focusing and flow separation. A nozzle concentrator structure including an acceleration nozzle with a flow extraction structure may be coupled to a containment vessel. The containment vessel may include a water condensation growth tube to facilitate the concentration of ultrafine particles. The containment vessel may further include a separate carrier flow introduced at the center of the sampled flow, upstream of the acceleration nozzle of the nozzle concentrator to facilitate the separation of particle and vapor constituents.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {6}
}

Patent:

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