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Means for Improving Pump Efficiency

[+] Author Affiliations
R. Karvinen

Tampere University of Technology, Tampere, Finland

M. Koivikko, S. Virtanen

Sulzer Pumps Finland Oy, Kotka, Finland

Paper No. FEDSM2009-78571, pp. 245-250; 6 pages
doi:10.1115/FEDSM2009-78571
From:
  • ASME 2009 Fluids Engineering Division Summer Meeting
  • Volume 2: Fora
  • Vail, Colorado, USA, August 2–6, 2009
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4373-4 | eISBN: 978-0-7918-3855-6
  • Copyright © 2009 by ASME

abstract

The design of pumps has been mainly based on results obtained from experiments. Because there has been no detailed information concerning very complicated flow fields inside pumps, only by accident have some new ideas been found. At present, numerical modeling of the flow offers an opportunity to understand basic phenomena which make it possible to find new connections between hydraulic and geometric parameters. With the help of numerical modeling in a long-term project, new design instructions have been successfully developed. It seems that some existing ideas on how different factors affect pump performance should be re-evaluated. An important finding is that the effect of specific speed on efficiency is quite small. Also the efficiencies of existing pumps can be clearly improved with proper design.

Copyright © 2009 by ASME
Topics: Pumps

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