Development of a 2-phase Flow Nozzle for Fine Droplet Generation
Paper
Paper/Presentation Title | Development of a 2-phase Flow Nozzle for Fine Droplet Generation |
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Presentation Type | Paper |
Authors | Van Puyenbroeck, T., Brieschenk, S. and Jahn, I. H. |
Journal or Proceedings Title | Proceedings of the 19th Australasian Fluid Mechanics Conference (AFMC 2014) |
Number of Pages | 4 |
Year | 2014 |
Place of Publication | Australia |
ISBN | 9780646596952 |
Web Address (URL) of Paper | https://www.afms.org.au/proceedings/19/VanPuyenbroeck_et_al_2014.pdf |
Web Address (URL) of Conference Proceedings | https://www.afms.org.au/proceedings/19.html |
Conference/Event | 19th Australasian Fluid Mechanics Conference (AFMC 2014) |
Event Details | 19th Australasian Fluid Mechanics Conference (AFMC 2014) Parent Australasian Fluid Mechanics Conference Delivery In person Event Date 08 to end of 11 Dec 2014 Event Location Melbourne, Australia Event Venue Royal Melbourne Institute of Technology Event Web Address (URL) |
Abstract | Fine sprays with droplet diameters (< 50mm), are widely used in engineering applications, ranging from liquid pre-cooling in natural draft cooling towers to fuel injection for scramjet en- gines. Traditionally fine droplets are generated by passing high pressure liquid through small diameter nozzles. The downsides of this method are high energy consumption arising from pumping work and limited flow rates arising from the small nozzle exit areas. A way to overcome these limitations is to use a 2-phase Flow Nozzle. Here, liquid is injected together with a small quantity of gas through the same nozzle. The interaction of the two fluid streams significantly enhances liquid jet break-up. This paper presents the design and commissioning of an experimental test set-up for 2-phase nozzle development and the results obtained from testing a prototype nozzle injecting hydrocarbon fuel and nitrogen. Results show that the nozzle can generate droplets be- low 100mm at moderate operating pressures (5–10 bar), while maintaining flow rates comparable to those of high pressure single phase nozzles. In addition to proving the feasibility of the 2-phase nozzle concept, the experimental campaign has generated an extensive set of high speed videos, providing an insight into the liquid jet break-up process. These will be used in future computational fluid dynamic investigations. |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 4017. Mechanical engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Mons, Belgium |
University of Queensland |
https://research.usq.edu.au/item/z2190/development-of-a-2-phase-flow-nozzle-for-fine-droplet-generation
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