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The Effect of Viscosity on Performance of a Low Specific Speed Centrifugal Pump
Joint Authors
Torabi, Rouhollah
Nourbakhsh, Seyyed Ahmad
Source
International Journal of Rotating Machinery
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Centrifugal pump delivery head and flow rate drop effectively during the pumping of viscous fluids.
Several methods and correlations have been developed to predict reduction rate in centrifugal pump performance when handling viscous fluids, but their results are not in very good agreement with each other.
In this study, a common industrial low specific speed pump, which is extensively used in different applications, is studied.
The entire pump, including impeller, volute, pipes, front and rear sidewall gaps, and balance holes, is simulated in Computational Fluid Dynamics and 3D full Navier Stokes equations are solved.
CFD results are compared with experimental data such as pump performance curves, static pressure in casing, and disk friction loss.
Dimensionless angular velocity and leakage rate are investigated in sidewall gap and efficiency variation due to viscosity is studied.
The results demonstrate that the behavior of the fluid in sidewall gap is strictly sensitive to viscosity.
Increasing viscosity improves the volumetric efficiency by reducing internal leakage through wear rings and balance holes, causing, however, a significant fall in the disk and overall efficiency.
Results lead to some recommendations for designing centrifugal pumps which may be used in transferring viscous fluids.
American Psychological Association (APA)
Torabi, Rouhollah& Nourbakhsh, Seyyed Ahmad. 2016. The Effect of Viscosity on Performance of a Low Specific Speed Centrifugal Pump. International Journal of Rotating Machinery،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1107015
Modern Language Association (MLA)
Torabi, Rouhollah& Nourbakhsh, Seyyed Ahmad. The Effect of Viscosity on Performance of a Low Specific Speed Centrifugal Pump. International Journal of Rotating Machinery No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1107015
American Medical Association (AMA)
Torabi, Rouhollah& Nourbakhsh, Seyyed Ahmad. The Effect of Viscosity on Performance of a Low Specific Speed Centrifugal Pump. International Journal of Rotating Machinery. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1107015
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107015