Effect of asymmetric diffuser deflector on even distribution of steam leaving blade section of steam turbine: comparative computational study

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dc.contributor.authorBobčík, Marekcs
dc.contributor.authorPospíšil, Jiřícs
dc.contributor.authorFiedler, Jancs
dc.coverage.issueSeptembercs
dc.coverage.volume73cs
dc.date.accessioned2025-06-20T06:56:52Z
dc.date.available2025-06-20T06:56:52Z
dc.date.issued2025-06-09cs
dc.description.abstractThis study presents a computational analysis comparing two designs of steam turbine diffuser deflectors: a conventional axisymmetric design and an innovative asymmetric design. The computational comparison is carried out for a real turbine with a power output of 1.090 MW. Utilizing ANSYS CFX simulations based on the finite volume method, the innovative deflector demonstrates extending the steam expansion, which is directly related to the up to 5 % increase in the output power of the turbine last stage blades. The asymmetric steam turbine diffuser deflector geometry promotes a more uniform static pressure distribution and reduces flow separation and recirculation zones, leading to decreased pressure losses between the turbine's inner and outer casings.en
dc.formattextcs
dc.format.extent1-10cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCase Studies in Thermal Engineering. 2025, vol. 73, issue September, p. 1-10.en
dc.identifier.doi10.1016/j.csite.2025.106490cs
dc.identifier.issn2214-157Xcs
dc.identifier.orcid0000-0002-2437-538Xcs
dc.identifier.orcid0000-0003-0507-5610cs
dc.identifier.other198159cs
dc.identifier.researcheridA-5128-2016cs
dc.identifier.scopus35568432100cs
dc.identifier.urihttps://hdl.handle.net/11012/254475
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofCase Studies in Thermal Engineeringcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2214157X25007506cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2214-157X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectSteam turbineDiffuserDeflectorCFD modelingPressure lossen
dc.titleEffect of asymmetric diffuser deflector on even distribution of steam leaving blade section of steam turbine: comparative computational studyen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.grantNumberinfo:eu-repo/grantAgreement/TA0/TN/TN02000012cs
sync.item.dbidVAV-198159en
sync.item.dbtypeVAVen
sync.item.insts2025.06.20 08:56:52en
sync.item.modts2025.06.20 08:33:47en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
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