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Jens Jacob Iversen

Quantifying the contact electrification of aerosolized insulating particles

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Quantifying the contact electrification of aerosolized insulating particles. / Alois, Stefano; Merrison, Jonathan; Iversen, Jens Jacob; Sesterhenn, Joern.

I: Powder Technology, Bind 332, 01.06.2018, s. 106-113.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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Alois, Stefano ; Merrison, Jonathan ; Iversen, Jens Jacob ; Sesterhenn, Joern. / Quantifying the contact electrification of aerosolized insulating particles. I: Powder Technology. 2018 ; Bind 332. s. 106-113.

Bibtex

@article{bccc8b7365a54cca8588743c6fdfd16c,
title = "Quantifying the contact electrification of aerosolized insulating particles",
abstract = "The contact electrification of aerosolized micron-scale oxide particles has been investigated experimentally and the size and composition dependence determined. The net charge acquired by particles contacting the aerosolizer was seen to increase linearly with their surface area. A physically meaningful model based upon electron transfer has been applied leading to a predictive expression for the total particle surface charge concentration generated (σ) dependent on the absolute generalized relative electronegativity (χ AGR); σ = aχ AGR − b, where a = 4.7 e/μm 2/V, b = −27 e/μm 2 and χ AGR is obtained by knowing the composition of the two contacting surfaces. The influence of relative humidity and particle cohesion on the contact electrification process was investigated. A maximum surface charge concentration of around 100 e/μm 2 was found, in agreement with previous work. ",
keywords = "Contact electrification, Insulating particles, Tribo-electrification, Electronegativity, Aerosol, CHARGE-DISTRIBUTION, RELATIVE-HUMIDITY, IONIC ELECTRETS, IMAGE-ANALYSIS, WIND-TUNNEL, SURFACE, SIZE, POWDER, DUST, TRANSPORT",
author = "Stefano Alois and Jonathan Merrison and Iversen, {Jens Jacob} and Joern Sesterhenn",
year = "2018",
month = jun,
day = "1",
doi = "10.1016/j.powtec.2018.03.059",
language = "English",
volume = "332",
pages = "106--113",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Quantifying the contact electrification of aerosolized insulating particles

AU - Alois, Stefano

AU - Merrison, Jonathan

AU - Iversen, Jens Jacob

AU - Sesterhenn, Joern

PY - 2018/6/1

Y1 - 2018/6/1

N2 - The contact electrification of aerosolized micron-scale oxide particles has been investigated experimentally and the size and composition dependence determined. The net charge acquired by particles contacting the aerosolizer was seen to increase linearly with their surface area. A physically meaningful model based upon electron transfer has been applied leading to a predictive expression for the total particle surface charge concentration generated (σ) dependent on the absolute generalized relative electronegativity (χ AGR); σ = aχ AGR − b, where a = 4.7 e/μm 2/V, b = −27 e/μm 2 and χ AGR is obtained by knowing the composition of the two contacting surfaces. The influence of relative humidity and particle cohesion on the contact electrification process was investigated. A maximum surface charge concentration of around 100 e/μm 2 was found, in agreement with previous work.

AB - The contact electrification of aerosolized micron-scale oxide particles has been investigated experimentally and the size and composition dependence determined. The net charge acquired by particles contacting the aerosolizer was seen to increase linearly with their surface area. A physically meaningful model based upon electron transfer has been applied leading to a predictive expression for the total particle surface charge concentration generated (σ) dependent on the absolute generalized relative electronegativity (χ AGR); σ = aχ AGR − b, where a = 4.7 e/μm 2/V, b = −27 e/μm 2 and χ AGR is obtained by knowing the composition of the two contacting surfaces. The influence of relative humidity and particle cohesion on the contact electrification process was investigated. A maximum surface charge concentration of around 100 e/μm 2 was found, in agreement with previous work.

KW - Contact electrification

KW - Insulating particles

KW - Tribo-electrification

KW - Electronegativity

KW - Aerosol

KW - CHARGE-DISTRIBUTION

KW - RELATIVE-HUMIDITY

KW - IONIC ELECTRETS

KW - IMAGE-ANALYSIS

KW - WIND-TUNNEL

KW - SURFACE

KW - SIZE

KW - POWDER

KW - DUST

KW - TRANSPORT

U2 - 10.1016/j.powtec.2018.03.059

DO - 10.1016/j.powtec.2018.03.059

M3 - Journal article

VL - 332

SP - 106

EP - 113

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

ER -