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Permanent link (DOI): https://doi.org/10.7939/R3D50G79K

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A Parametric Study of a Flash Atomized Spray Using PDPA Open Access

Descriptions

Other title
Subject/Keyword
Atomization
PDPA
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Breton, Kevin M
Supervisor and department
Fleck, Brain A (Mechanical Engineering)
Nobes, David S (Mechanical Engineering)
Examining committee member and department
Nobes, David S (Mechanical Engineering)
Zeng, Hongbo (Chemical Engineering)
Vehring, Reinhard (Mechanical Engineering)
Fleck, Brain A (Mechanical Engineering)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2013-07-05T10:25:45Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
This study used non-intrusive, optical based measurement techniques in a parametric study of a flash atomized jet. The bench scale water spray was operated at pressure ratios ranging from 6.80-17.0 and degrees of superheat of 20-80 °C. This broad range of parameters allowed for the evaluation of the influence of the operating conditions on the spray characteristics. Long exposure images were used in order to measure the spreading angle of the flashing jet which varied from 10-50° , while PDPA measurements were used in order to measure the radial profiles of the droplet velocities and diameters. The spray produced consistent droplet mean diameters of approximately 3 μm and centreline velocities from 25-35 m/s. The results indicate that the characteristics of a flashing spray operating at high degrees of superheat are robust with respect to changes in the operating pressure ratio.
Language
English
DOI
doi:10.7939/R3D50G79K
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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