Effect of spill orifice geometry on performance of spill-return pressure-swirl atomizers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU129077" target="_blank" >RIV/00216305:26210/18:PU129077 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of spill orifice geometry on performance of spill-return pressure-swirl atomizers
Original language description
Pressure-swirl (PS) atomizers are much favoured for their simple construction, reliability and fine spray. They produce a hollow cone spray with drop sizes strongly linked to the inlet overpressure, pl. Their disadvantage is a limitation in turn-down ratio due to their ﬂow rate dependency on the square root of the pl. To overcome this drawback, a spill-return (SR) version was developed in the past. In this work, small SR PS atomizers were exper-imentally investigated using PDA and high-speed imaging with the aim to determine the effect of the SR orifice design, e.g. the positioning of the axial and off-axis spill orifices, their number and inclination on control charac-teristics, nozzle efficiency and spray characteristics. These data are not to be found in the open literature. The axially positioned SR orifice shows an unstable spray for low spill-to-feed ratios (SFR) compared to the off-axial spill orifice version that produces a stable spray at all tested regimes. However, the axially placed SR or
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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