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TECHNICAL PAPERS

Effect of Surfactant Additives on Centrifugal Pump Performance

[+] Author and Article Information
Satoshi Ogata

Graduate School of Engineering, Tokyo Metropolitan University, Department of Mechanical Engineering, 1-1 Minami Ohsawa, Hachiooji-shi, Tokyo 192-0397, Japanogata-satoshi@c.metro-u.ac.jp

Asano Kimura

Graduate School of Engineering, Tokyo Metropolitan University, Department of Mechanical Engineering, 1-1 Minami Ohsawa, Hachiooji-shi, Tokyo 192-0397, Japan

Keizo Watanabe

Graduate School of Technology Management, Tokyo University of Agriculture and Technology, 2–24–16 Nakacho, Koganei–shi, Tokyo, 184–8588, Japan

J. Fluids Eng 128(4), 794-798 (Dec 07, 2005) (5 pages) doi:10.1115/1.2201643 History: Received December 10, 2004; Revised December 07, 2005

Performance of a centrifugal pump when handling surfactant solutions was measured experimentally. It was clarified that the pump efficiency with surfactant solutions was higher than that with tap water and increased with an increase in surfactant concentration. The value of maximum flow rate also increased. The total pump head increased with an increase in concentration, and the shaft power decreased with a decrease in the impeller rotating speed. There was an optimal temperature, which maximizes the efficiency. By combining the data for the piping section and for the pump efficiency, it is possible to accurately predict the energy savings of the pumping power in the pipeline system.

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Copyright © 2006 by American Society of Mechanical Engineers
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Figures

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Figure 1

(a) Experimental apparatus and (b) cross section of test pump

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Figure 2

Apparent viscosity of surfactant solutions

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Figure 3

Pump performance curve at 1300rpm: (a) Pump head, (b) shaft power, and (c) pump efficiency

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Figure 4

Effect of surfactant concentration on total pump head at 1300rpm

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Figure 5

Pumping operation point with surfactant solution

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Figure 6

Effect of rotational speed on pump performance: (a) Head coefficient (b) power coefficient, and (c) pump efficiency

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Figure 7

Effect of Reynolds number on power coefficient (200ppm)

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Figure 8

Effect of surfactant concentration on pump efficiency at 1300rpm

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Figure 9

Relationship between surfactant temperature and pump efficiency at 1300rpm

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