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JEDELSKÝ, J. JÍCHA, M.
Original Title
Novel modifications of Effervescent Atomizer, Performance, Advantages and Drawbacks
Type
conference paper
Language
English
Original Abstract
In this work we studied a single-hole effervescent atomizer spraying light heating oil with air as an atomising medium in the "outside-in" gas injection configuration. We focused on modification of geometry of the atomizer exit section. Two atomizers, one with moderate, and one with intense helical swirler in front of the exit orifice were designed to expand the spray cone angle by a swirl of the gas-liquid mixture. Performance of the atomizer modifications were compared with a plain-orifice atomizer. An experimental study of atomization process was made on cold test bench. Swirling the mixture led to a significant increase of the spray cone angle at low gas to liquid ratio by mass (GLR). An increase of the gas mass fraction in the mixture inhibits the swirl action on the spray cone expansion. The swirl effect diminishes with GLR rising above 15 %. Another two atomizers were designed with aim to reduce droplet size on the spray edge: an atomizer with secondary air at the exit orifice and an atomizer with seco
Keywords
Effervescent Atomizer, spray, droplet size, spray cone
Authors
JEDELSKÝ, J.; JÍCHA, M.
RIV year
2010
Released
6. 9. 2010
Publisher
Tribun EU
Location
Brno
ISBN
978-80-7399-997-1
Book
Proceedings of 23rd European Conference on Liquid Atomization and Spray Systems
Pages from
1
Pages to
5
Pages count
BibTex
@inproceedings{BUT34990, author="Jan {Jedelský} and Miroslav {Jícha}", title="Novel modifications of Effervescent Atomizer, Performance, Advantages and Drawbacks", booktitle="Proceedings of 23rd European Conference on Liquid Atomization and Spray Systems", year="2010", pages="1--5", publisher="Tribun EU", address="Brno", isbn="978-80-7399-997-1" }