Detail publikace

Combined Drop Sizing using Phase Doppler Anemometry and High-Speed Imaging

CEJPEK, O. MALÝ, M. JEDELSKÝ, J.

Originální název

Combined Drop Sizing using Phase Doppler Anemometry and High-Speed Imaging

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The majority of conventional atomizers generate sprays with a polydisperse droplet size distribution. The spray size distribution width is one of the main spray characteristics and influences the efficiency of mass-transfer related applications such as CO2 capture efficiency in spray columns. A newly developed impinging effervescent atomizer is investigated at different operating regimes. The inlet pressure of 0.1 MPa and three gas to liquid ratio (GLRs) regimes of 2.5, 5 and 10% were tested. The spray droplet size distribution was investigated using two experimental techniques, Phase Doppler anemometry (PDA) and high-speed (HS) imaging. The droplet size distributions obtained by both experimental techniques are compared, both with slightly different results and features. Therefore, an approach with combining of the experimental data from both techniques is provided. More realistic droplet size distributions are obtained then, since PDA detects small droplets, while the HS imaging accurately captures large and non-spherical droplets. It was found that the spray polydispersity grows with increasing GLR. The spray contains most of its volume in large droplets for GLR = 2.5%. With increasing GLR, the smaller droplets contain a larger volume fraction, but a small number of large droplets remains and thus increases the spray polydispersity.

Klíčová slova

Phase Doppler anemometry, High-speed imaging, effervescent atomizer, droplet diameter, relative span factor

Autoři

CEJPEK, O.; MALÝ, M.; JEDELSKÝ, J.

Vydáno

14. 2. 2023

Nakladatel

American Institute of Physics Inc.

Místo

Melville, New York

ISSN

0094-243X

Periodikum

AIP conference proceedings

Ročník

2672

Číslo

1

Stát

Spojené státy americké

Strany od

1

Strany do

6

Strany počet

6

URL

https://www.scopus.com/record/display.uri?eid=2-s2.0-85149804261&origin=resultslist&sort=plf-f&src=s&sid=c9b7a9a4433414432c3bcaa586fd7bb5&sot=b&sdt=b&s=DOI%2810.1063%2F5.0120006%29&sl=22&sessionSearchId=c9b7a9a4433414432c3bcaa586fd7bb5&relpos=0

BibTex

@inproceedings{BUT172996,
  author="Ondřej {Cejpek} and Milan {Malý} and Jan {Jedelský}",
  title="Combined Drop Sizing using Phase Doppler Anemometry and High-Speed Imaging",
  booktitle="AIP Conference Proceedings",
  year="2023",
  journal="AIP conference proceedings",
  volume="2672",
  number="1",
  pages="1--6",
  publisher="American Institute of Physics Inc.",
  address="Melville, New York",
  doi="10.1063/5.0120006",
  issn="0094-243X",
  url="https://www.scopus.com/record/display.uri?eid=2-s2.0-85149804261&origin=resultslist&sort=plf-f&src=s&sid=c9b7a9a4433414432c3bcaa586fd7bb5&sot=b&sdt=b&s=DOI%2810.1063%2F5.0120006%29&sl=22&sessionSearchId=c9b7a9a4433414432c3bcaa586fd7bb5&relpos=0"
}