Experimental and CFD investigation of a multistage centrifugal pump including leakages and balance holes

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dc.contributor.authorBabayigit, Osman
dc.contributor.authorOzgoren, Muammer
dc.contributor.authorAksoy, Muharrem Hilmi
dc.contributor.authorKocaaslan, Osman
dc.date.accessioned2020-03-26T19:41:45Z
dc.date.available2020-03-26T19:41:45Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe aim of this study is to analyze numerically a multistage pump with some new approaches and compare the results with experimental data. A centrifugal pump, consisting of six backward curved blades, ten vane diffusers and two stages, was used. First, models of an impeller, a diffuser, suction and discharge sections of the centrifugal pump were separately designed by empirical equations. The flow volume of the pump was numerically solved by different turbulence models. Thus, the most accurate results in comparison with experimental data were obtained for the realizable k-epsilon turbulence model. For the purposes of this study, the effect of balance holes and leakages (clearances) on the performance was scrutinized. In most studies, it is not taken into consideration in computational fluid dynamics (CFD) analyses due to the difficulty of meshing these regions. The experimental studies were performed at a computer controlled pump test rig that was established according to the standard TS EN ISO 9906. The results of CFD/experimental analyses for the pump head, hydraulic efficiency and hydraulic power on the design point, having the flow rate of 80 m(3)/h and the revolution of 2,975 rpm, were found to be 81.47/80.70 m, 51.98%/51.42% and 17.94/17.77 kW, respectively. The obtained CFD and experimental results were found to be close agreement for the design flow rate as well as for all tested flow rates. Other characteristics of the pump such as velocity, static pressure, streamline patterns and turbulence kinetic energy were also investigated. In addition, the leakages and balance holes have significantly affected the pump characteristics, which must be considered in CFD analyses in order to find more precise results for true-to-life simulations.en_US
dc.description.sponsorshipMinistry of Science, Industry and Technology of TurkeyMinistry of Science, Industry & Technology - Turkey [01076.STZ.2011-2]; Selcuk University's Scientific Research Project OfficeSelcuk University [14401075]; Sempa Co. boarden_US
dc.description.sponsorshipThis work is supported by SANTEZ program of the Ministry of Science, Industry and Technology of Turkey with number 01076.STZ.2011-2 and Selcuk University's Scientific Research Project Office Contract No.: 14401075. The authors also would like to thank to the partner of the project Sempa Co. board (http://www.sempaltd.com/en/) for their support. This study is a part of Osman Babayigit's PhD Thesis.en_US
dc.identifier.doi10.5004/dwt.2017.20153en_US
dc.identifier.endpage40en_US
dc.identifier.issn1944-3994en_US
dc.identifier.issn1944-3986en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage28en_US
dc.identifier.urihttps://dx.doi.org/10.5004/dwt.2017.20153
dc.identifier.urihttps://hdl.handle.net/20.500.12395/35110
dc.identifier.volume67en_US
dc.identifier.wosWOS:000403569700004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherDESALINATION PUBLen_US
dc.relation.ispartofDESALINATION AND WATER TREATMENTen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectBalance holeen_US
dc.subjectCFDen_US
dc.subjectClearanceen_US
dc.subjectHydraulic efficiencyen_US
dc.subjectLeakagesen_US
dc.subjectMultistage centrifugal pumpen_US
dc.titleExperimental and CFD investigation of a multistage centrifugal pump including leakages and balance holesen_US
dc.typeArticleen_US

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