Spray characteristics of an air-assisted electrostatic atomiser

Antoni Brentjes; Bart  Jansen; Artur K. Pozarlik

doi:10.1016/j.elstat.2021.103654

Spray characteristics of an air-assisted electrostatic atomiser

Antoni Brentjes^*, Bart Jansen, Artur K. Pozarlik

^*Corresponding author for this work

Thermal Engineering

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Abstract

The spray characteristics of an air-assisted electrostatic atomiser are experimentally investigated using a shadowgraphy particle/droplet image analysis (PDIA) technique. Tests are conducted for varied rates of liquid- and airflow, with and without a voltage applied to the nozzle electrode. The found droplet sizes neatly match the Rosin–Rammler distribution, and an expression for the mean diameter as a function of the flow rates is given. Notably, the electrode voltage (up to 40 kV) has no measurable impact on the droplet size and velocity, and the energy efficiency of the sprayer is found to decrease with increases in both liquid- and airflow.

Original language	English
Article number	103654
Journal	Journal of electrostatics
Volume	115
DOIs	https://doi.org/10.1016/j.elstat.2021.103654
Publication status	Published - Jan 2022

Keywords

UT-Hybrid-D

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10.1016/j.elstat.2021.103654Licence: CC BY

ArticleFinal published version, 2.32 MBLicence: CC BY

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title = "Spray characteristics of an air-assisted electrostatic atomiser",

abstract = "The spray characteristics of an air-assisted electrostatic atomiser are experimentally investigated using a shadowgraphy particle/droplet image analysis (PDIA) technique. Tests are conducted for varied rates of liquid- and airflow, with and without a voltage applied to the nozzle electrode. The found droplet sizes neatly match the Rosin–Rammler distribution, and an expression for the mean diameter as a function of the flow rates is given. Notably, the electrode voltage (up to 40 kV) has no measurable impact on the droplet size and velocity, and the energy efficiency of the sprayer is found to decrease with increases in both liquid- and airflow.",

keywords = "UT-Hybrid-D",

author = "Antoni Brentjes and Bart Jansen and Pozarlik, {Artur K.}",

note = "Funding Information: This work is supported by the EFRO Oost-Nederland programme within the CrestCool project (# PROJ-00730 ). Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2022",

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doi = "10.1016/j.elstat.2021.103654",

language = "English",

volume = "115",

journal = "Journal of electrostatics",

issn = "0304-3886",

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T1 - Spray characteristics of an air-assisted electrostatic atomiser

AU - Brentjes, Antoni

AU - Jansen, Bart

AU - Pozarlik, Artur K.

PY - 2022/1

Y1 - 2022/1

N2 - The spray characteristics of an air-assisted electrostatic atomiser are experimentally investigated using a shadowgraphy particle/droplet image analysis (PDIA) technique. Tests are conducted for varied rates of liquid- and airflow, with and without a voltage applied to the nozzle electrode. The found droplet sizes neatly match the Rosin–Rammler distribution, and an expression for the mean diameter as a function of the flow rates is given. Notably, the electrode voltage (up to 40 kV) has no measurable impact on the droplet size and velocity, and the energy efficiency of the sprayer is found to decrease with increases in both liquid- and airflow.

AB - The spray characteristics of an air-assisted electrostatic atomiser are experimentally investigated using a shadowgraphy particle/droplet image analysis (PDIA) technique. Tests are conducted for varied rates of liquid- and airflow, with and without a voltage applied to the nozzle electrode. The found droplet sizes neatly match the Rosin–Rammler distribution, and an expression for the mean diameter as a function of the flow rates is given. Notably, the electrode voltage (up to 40 kV) has no measurable impact on the droplet size and velocity, and the energy efficiency of the sprayer is found to decrease with increases in both liquid- and airflow.

KW - UT-Hybrid-D

U2 - 10.1016/j.elstat.2021.103654

DO - 10.1016/j.elstat.2021.103654

M3 - Article

VL - 115

JO - Journal of electrostatics

JF - Journal of electrostatics

SN - 0304-3886

M1 - 103654

ER -

Spray characteristics of an air-assisted electrostatic atomiser

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Keywords

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