Comparison of Y-jet and OIL effervescent atomizers based on internal and external two-phase flow characteristics

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dc.contributor.authorMlkvik, Marekcs
dc.contributor.authorZaremba, Matoušcs
dc.contributor.authorJedelský, Jancs
dc.contributor.authorJícha, Miroslavcs
dc.coverage.issue2016cs
dc.coverage.volume114cs
dc.date.accessioned2017-09-22T10:47:15Z
dc.date.available2017-09-22T10:47:15Z
dc.date.issued2016-03-28cs
dc.description.abstractPresented paper focuses on spraying of two viscous liquids ( = 60 and 143 mPa·s) by two types of twinfluid atomizers with internal mixing. We compared the well-known Y-jet atomizer with the less known, “outside in liquid” (OIL), configuration of the effervescent atomizer. The required liquid viscosity was achieved by using the water-maltodextrin solutions of different concentrations. Both the liquids were sprayed at two gas inlet pressures (p = 0.14 and 0.28 MPa) and various gas-to-liquid ratios (GLR = 2.5%, 5%, 10% and 20%). The comparison was focused on four characteristics: liquid flow-rate (for the same working regimes, defined by p and GLR), internal flow regimes, Weber numbers of a liquid breakup (We) and droplet sizes. A high-speed camera and Malvern Spraytec laser diffraction system were used to obtain necessary experimental data. Comparing the results of our experiments, we can state that for both the liquids the OIL atomizer reached higher liquid flow-rates at corresponding working regimes, it was typical by annular internal flow and higher We in the near-nozzle region at all the working regimes. As a result, it produced considerably smaller droplets than the second tested atomizing device, especially for GLR < 10%.en
dc.formattextcs
dc.format.extent1-4cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEPJ Web of Conferences. 2016, vol. 114, issue 2016, p. 1-4.en
dc.identifier.doi10.1051/epjconf/201611402078cs
dc.identifier.issn2100-014Xcs
dc.identifier.other129782cs
dc.identifier.urihttp://hdl.handle.net/11012/70015
dc.language.isoencs
dc.publisherEDP sciencescs
dc.relation.ispartofEPJ Web of Conferencescs
dc.relation.urihttp://www.epj-conferences.org/articles/epjconf/abs/2016/09/epjconf_efm2016_02078/epjconf_efm2016_02078.htmlcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2100-014X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectEffervescenten
dc.subjectY-jeten
dc.subjectinternal two-phase flowen
dc.subjecthigh-speed cameraen
dc.subjectliquid breakupen
dc.titleComparison of Y-jet and OIL effervescent atomizers based on internal and external two-phase flow characteristicsen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-129782en
sync.item.dbtypeVAVen
sync.item.insts2020.03.31 09:57:59en
sync.item.modts2020.03.31 07:39:20en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
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