Publication detail

Characteristics and behaviour of multi-hole effervescent atomizers

JEDELSKÝ, J. JÍCHA, M. SLÁMA, J.

Original Title

Characteristics and behaviour of multi-hole effervescent atomizers

Type

conference paper

Language

English

Original Abstract

The paper shows results of continuos research of multi-hole effervescent atomizers for industrial burners. The atomizer is powered with light heating oil and uses air as an atomizing medium. Here we focus on several new versions of multi-hole effervescent atomizers developed on the basis of previous research. Detailed description of spray quality is presented. 3-D graphs show spatial distribution of Sauter Mean Diameter and mean velocity. Influence of design and operational conditions on spray quality is analyzed. Size-velocity correlation and size and velocity distribution is described. The results are compared with results of other authors. Two-phase flow inside the atomizers is described by Bakers map for horizontal flow. Our previous results with two-phase flow visualization invoked a possibility of liquid-gas gravitational separation. Results of spray heterogeneity measurements show that differences between fuel flow rate of individual holes can be of the order of tens %. Effervescent atomizer sprays tend to be unsteady under some operating conditions. Spray unsteadiness at lower pressure and GLR were observed and measured.

Keywords

drop size, spray, multi-hole effervescent atomizer

Authors

JEDELSKÝ, J.; JÍCHA, M.; SLÁMA, J.

RIV year

2004

Released

1. 1. 2004

Publisher

University of Nottingham

Location

Nottingham

Pages from

521

Pages to

526

Pages count

6

BibTex

@inproceedings{BUT13014,
  author="Jan {Jedelský} and Miroslav {Jícha} and Jaroslav {Sláma}",
  title="Characteristics and behaviour of multi-hole effervescent atomizers",
  booktitle="19th ILASS Europe 2004",
  year="2004",
  pages="6",
  publisher="University of Nottingham",
  address="Nottingham"
}