Particle transmission characteristics of an annular denuder ambient sampling system

Yan Ye; Chuen-Tinn Tsai; David Y H Pui; Charles W. Lewis

doi:10.1080/02786829108959475

Particle transmission characteristics of an annular denuder ambient sampling system

Yan Ye, Chuen-Tinn Tsai, David Y H Pui^*, Charles W. Lewis

^*Corresponding author for this work

Institute of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Transmission measurements have been performed on University Research Glassware, Inc. model 2000–30B glass annular denuders at 10 L/min using monodisperse particles in the 0.01–1-μm diameter size range. Through control of the aerosol charge state, particle losses due to diffusion and electrostatic effects were separately measured and theoretical descriptions of both were developed. For Boltzmann charged (atmospheric) particles in the important 0.1–1-μm diameter size range total losses averaged only a few percent or less. Particle transmission measurements also confirmed the design value of 2.5 μm for the 50% cutpoint diameter of the URG 2000-30EN cyclone inlet used with these annular denuders.

Original language	English
Pages (from-to)	102-111
Number of pages	10
Journal	Aerosol Science and Technology
Volume	14
Issue number	1
DOIs	https://doi.org/10.1080/02786829108959475
State	Published - 1 Jan 1991

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AU - Pui, David Y H

AU - Lewis, Charles W.

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Y1 - 1991/1/1

N2 - Transmission measurements have been performed on University Research Glassware, Inc. model 2000–30B glass annular denuders at 10 L/min using monodisperse particles in the 0.01–1-μm diameter size range. Through control of the aerosol charge state, particle losses due to diffusion and electrostatic effects were separately measured and theoretical descriptions of both were developed. For Boltzmann charged (atmospheric) particles in the important 0.1–1-μm diameter size range total losses averaged only a few percent or less. Particle transmission measurements also confirmed the design value of 2.5 μm for the 50% cutpoint diameter of the URG 2000-30EN cyclone inlet used with these annular denuders.

AB - Transmission measurements have been performed on University Research Glassware, Inc. model 2000–30B glass annular denuders at 10 L/min using monodisperse particles in the 0.01–1-μm diameter size range. Through control of the aerosol charge state, particle losses due to diffusion and electrostatic effects were separately measured and theoretical descriptions of both were developed. For Boltzmann charged (atmospheric) particles in the important 0.1–1-μm diameter size range total losses averaged only a few percent or less. Particle transmission measurements also confirmed the design value of 2.5 μm for the 50% cutpoint diameter of the URG 2000-30EN cyclone inlet used with these annular denuders.

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Particle transmission characteristics of an annular denuder ambient sampling system

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