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TECHNICAL PAPERS

Performance Characteristics of a Centrifugal Pump Impeller With Running Tip Clearance Pumping Solid-Liquid Mixtures

[+] Author and Article Information
Tahsin Engin, Mesut Gur

University of Sakarya, Faculty of Engineering, Department of Mechanical Engineering, Esentepe Campus 54187, Sakarya, Turkey

J. Fluids Eng 123(3), 532-538 (Apr 04, 2001) (7 pages) doi:10.1115/1.1379034 History: Received August 28, 2000; Revised April 04, 2001
Copyright © 2001 by ASME
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References

Stepanoff, A.J., 1965, Pumps and Blowers, Two Phase Flow-Flow and Pumping of Solids in Suspension and Fluid Mixtures, John Wiley, London.
Walker,  C.I., and Goulas,  A., 1984, “Performance Characteristics of Centrifugal Pumps When Handling non Newtonian Homogeneous Slurries,” Proc. Instn. Mech. Engrs., Vol. 198A, No. 1, pp. 41–49.
Vocadlo, J.J., Koo, J.K., and Prang, A.J., 1974, “Performance of Centrifugal Pumps in Slurry Services,” Proc. Hydro Transport-3, paper J2, BHRA Fluid Engineering.
Burges, K.E., and Reizes, A., 1976, “The Effect of Sizing, Specific Gravity and Concentration on the Performance of Centrifugal Pumps,” Proc. Inst. Mechanical Engineering, Vol. 190-36/76, p. 391.
Cave, I., 1976, “Effects of Suspended Solids on the Performance of Centrifugal Pumps,” Proc. Hydro Transport-4, paper H3, BHRA Fluid Engineering.
Sellgren, A., 1979, “Performance of Centrifugal Pumps When Pumping Ores and Industrial Minerals,” Proc. Hydro Transport-6, paper G1, BHRA Fluid Engineering.
Gahlot,  V.K., Seshadri,  V., and Malhotra,  R.C., 1992, “Effect of Density, Size Distribution, and Concentration of Solids on the Characteristics of Centrifugal Pumps,” ASME J. Fluids Eng., 114, pp. 386–389.
Kazim,  K.A., Maiti,  B., and Chand,  P., 1997, “Effect of Particle Size, Particle Size Distribution, Specific Gravity and Solids Concentration on Centrifugal Pump Performance,” Powder Handling and Processing, 9, No. 1, pp. 27–32.
Lakshminarayana,  B., 1970, “Methods of Predicting the Tip Clearance Effects in Axial Flow Machinery,” ASME J. Basic Eng., 92, p. 467–480.
Senoo,  Y., and Ishida,  M., 1981, “On the Pressure Loss Due to the Tip Clearance of Centrifugal Blower,” ASME J. Eng. Power, 103, No. 2, pp. 271–278.
Plutecki, J., and Wajda, A., 1975, “The Influence of an Axial Clearance Between a Semi-Open Impeller and a Casing on a Pump Parameters, By Example of H1-150 Pump,” Vortrage der Konferenz für Stromungsmaschinen, Budapest, 5 , pp. 833–845.
Wood,  G.M., Welna,  H., and Lamers,  R.P., 1965, “Tip Clearance Effects in Centrifugal Pumps,” ASME J. Fluids Eng., 87, pp. 932–940.
Pfleiderer, C., 1961, Die Kreiselpumpen, 5. Auflage, Vol. 99, Springer-Verlag, Berlin.
Engeda, A., Strate, W.P., and Rautenberg, M., 1988, “Correlation of Tip Clearance Effects to Impeller Geometry and Fluid Dynamics,” Gas Turbine and Aeroengine Congress, pp. 1–7, Amsterdam, ASME Paper 88-GT-92.
Cader,  T., Masbernat,  O., and Roco,  M.C., 1992, “LDV Measurements in a Centrifugal Slurry Pump: Water and Dilute Slurry Flow,” ASME J. Fluids Eng., 114, pp. 606–615.
Cader,  T., Masbernat,  O., and Roco,  M.C., 1994, “Two Phase Velocity Distribution and Overall Performance of a Centrifugal Slurry Pump,” ASME J. Fluids Eng., 116, pp. 316–323.
Murakami,  M., and Minemura,  K., 1976, “Effects of Running Clearance of Semi-Open Impeller Pumps under Air Admitting Conditions,” Bull. JSME, 19, No. 136, pp. 1141–1148.
T. Engin, 2000, “Ph.D. Dissertation,” Dept. of Mechanical Engineering, University of Sakarya, Sakarya, Türkiye.
Wilson, K.C., Addie, G.R., Sellgren, A., and Clift, R., 1997, Slurry Transport Using Centrifugal Pumps, 2nd Edition, Blackie A & P, ISBN 0-7514-0408-X.
Minemura,  K., and Murakami,  M., 1986, “Behavior of Solids Particles in a Radial Flow Impeller,” Bull. JSME, 29, No. 253, pp. 2101–2108.

Figures

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Experimental test rig and instrumentation (ISO 2548)
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Meridional profile of the unshrouded impeller with tip clearance arrangement
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Particle size distribution of the materials used
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Effect of tip clearance ratio on the optimal relative performance parameters of the pump
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Effect of tip clearance ratio on the optimal performance parameters of the pump
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Effect of tip clearance ratio on the optimal head ratio for different concentrations of solid materials used
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Effect of tip clearance ratio on the optimal efficiency ratio for different concentrations of solid materials used
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Effect of specific gravity of solids on the average head ratio
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Accuracy of the proposed correlation (Materials: Table 1)
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Comparison between measured and predicted head reduction factors using Eqs. of Refs. 68
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Accuracy of the proposed correlation (Materials: from Refs. 35)

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