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dc.contributor.advisorChilds, Dara W
dc.creatorBalke, Nathan Edward
dc.date.accessioned2019-01-25T16:12:50Z
dc.date.created2017-12
dc.date.issued2017-12-04
dc.date.submittedDecember 2017
dc.identifier.urihttp://hdl.handle.net/1969.1/174654
dc.description.abstractData are available for a previously tested annular seal with no swirl brakes (NSB). The NSB seal design was modified by adding slots at the inlet to produce a swirl brake (SB) seal. Tests were conducted to evaluate the static and dynamic characteristics of the modified SB seal. The SB data was then compared to the NSB data to understand how the seal rotordynamic coefficients are affected when swirl brakes are added. The SB and NSB seals had a radial clearance (Cr) of 203.2 um with the diameter of the seals (D) being 102 mm. The length to diameter ratio (L/D) of the NSB seal was 0.50, while the SB seal had an L/D of 0.45 due to the addition of swirl brakes. The SB seal was tested at three different inlet pre-swirl ratios (PSR): high preswirl, medium pre-swirl, and radial injection. During testing, operational conditions were varied by changing differential pressure (?P), running speed (w), and eccentricity ratio (e0). The test points were at w = 2, 4, 6, 8 krpm, ?P = 2.07, 4.14, 6.21, 8.27 bar and e0 = 0.00, 0.27, 0.53, 0.80. The test fluid was ISO VG 2 oil. The static data for SB showed that the flow rate (Q) increased as the imposed PSR increased, meaning the high pre-swirl case produced the highest Q values. Swirl brakes deliver the greatest reduction in PSR compared to that of NSB seals at high ?P, low w, and toward the centered position (e0=0.00). A vector Reynolds number was produced over the range of 1300 to 4400. The flow through the test stand was predicted to be transitional and turbulent.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.subjectSeal
dc.subjectSeals
dc.subjectSwirl Brake
dc.subjectCentrifugal
dc.subjectPump
dc.subjectCompressor
dc.subjectTurbine
dc.subjectPressure Drop
dc.subjectPre-Swirl
dc.subjectCircumferential Flow
dc.subjectFluid Flow
dc.subjectProcess Fluid
dc.subjectESP
dc.subjectElectrical Submersible Pump
dc.subjectStiffness
dc.subjectDamping
dc.subjectVirtual Mass
dc.subjectRotordynamics
dc.subjectDynamics
dc.subjectStatic
dc.subjectTurbomachinery
dc.subjectStator
dc.subjectRotor
dc.subjectEffective Damping
dc.subjectWhirl Frequency Ratio
dc.subjectWFR
dc.subjectOutlet Swirl
dc.subjectOSR
dc.subjectLeakage
dc.subjectEccentricity
dc.subjectClearance
dc.titleAnalyzing the Influence of a Swirl Brake on a Smooth Liquid Annular Seal Through Measuring Static and Rotordynamic Characteristics
dc.typeThesis
thesis.degree.departmentMechanical Engineering
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorTexas A & M University
thesis.degree.nameMaster of Science
thesis.degree.levelMasters
dc.contributor.committeeMemberSan Andres, Luis
dc.contributor.committeeMemberBeason, Lynn
dc.type.materialtext
dc.date.updated2019-01-25T16:12:51Z
local.embargo.terms2019-12-01
local.embargo.lift2019-12-01
local.etdauthor.orcid0000-0002-8794-3575


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