Publication detail

Influence of two-phase flow pattern in mixing chamber of effervescent atomizer on spray quality

OTÁHAL, J. KOŠNER, J. FIŠER, J. JÍCHA, M.

Original Title

Influence of two-phase flow pattern in mixing chamber of effervescent atomizer on spray quality

English Title

Influence of two-phase flow pattern in mixing chamber of effervescent atomizer on spray quality

Type

conference paper

Language

en

Original Abstract

The article deals with an experimental research of effervescent atomization. The resulting spray is affected by the type of the two-phase flow in the mixing chamber of the atomizer. The resulting type of the two-phase flow is influenced by media properties, geometrical parameters and arrangement of the chamber. The special transparent effervescent nozzle in configuration (inside-out gas injection) allowed the two-phase flow rising in the mixing chamber to be visualized. A high-speed camera was used for the visualization. The measurement of spray quality is represented by the values of the mean diameters of droplets, especially D32 (SMD-Sauter mean diameter). This characteristic parameter was obtained with the use of the laser diagnostics system PDA (Phase Doppler Analyzer). For complex overview of the spray, pictures of the spray were taken by means of a digital camera.

English abstract

The article deals with an experimental research of effervescent atomization. The resulting spray is affected by the type of the two-phase flow in the mixing chamber of the atomizer. The resulting type of the two-phase flow is influenced by media properties, geometrical parameters and arrangement of the chamber. The special transparent effervescent nozzle in configuration (inside-out gas injection) allowed the two-phase flow rising in the mixing chamber to be visualized. A high-speed camera was used for the visualization. The measurement of spray quality is represented by the values of the mean diameters of droplets, especially D32 (SMD-Sauter mean diameter). This characteristic parameter was obtained with the use of the laser diagnostics system PDA (Phase Doppler Analyzer). For complex overview of the spray, pictures of the spray were taken by means of a digital camera.

Keywords

Effervescent Atomization, Two-Phase Flow, Spray Quality, Visualization

RIV year

2007

Released

16.09.2007

Publisher

Florida state university

Location

Tallahassee

Pages from

109

Pages to

120

Pages count

400

BibTex


@inproceedings{BUT23841,
  author="Jan {Otáhal} and Jan {Košner} and Jan {Fišer} and Miroslav {Jícha}",
  title="Influence of two-phase flow pattern in mixing chamber of effervescent atomizer on spray quality",
  annote="The article deals with an experimental research of effervescent atomization. The resulting spray is affected by the type of the two-phase flow in the mixing chamber of the atomizer. The resulting type of the two-phase flow is influenced by media properties, geometrical parameters and arrangement of the chamber. The special transparent effervescent nozzle in configuration (inside-out gas injection) allowed the two-phase flow rising in the mixing chamber to be visualized. A high-speed camera was used for the visualization. The measurement of spray quality is represented by the values of the mean diameters of droplets, especially D32 (SMD-Sauter mean diameter). This characteristic parameter was obtained with the use of the laser diagnostics system PDA (Phase Doppler Analyzer). For complex overview of the spray, pictures of the spray were taken by means of a digital camera.",
  address="Florida state university",
  booktitle="Flucome 2007",
  chapter="23841",
  howpublished="electronic, physical medium",
  institution="Florida state university",
  year="2007",
  month="september",
  pages="109--120",
  publisher="Florida state university",
  type="conference paper"
}