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Effects of highly concentrated slurries on the performance of centrifugal pumps
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Luleå tekniska universitet.
1986 (English)In: International Symposium on Slurry Flows : Pres. at the Winter Annual Meeting of the American Society of Mechanical Engineers / [ed] M.C. Roco; W. Wiedenroth, New York: American Society of Mechanical Engineers , 1986, p. 143-148Conference paper, Published paper (Refereed)
Abstract [en]

Clear-water head and efficiency are generally lowered by the presence of solids, the concentration having a predominant influence on efficiency. Experimental results with two mine tailings products pumped at concentrations by weight of up to 60% indicated that the drop in head was limited to about 15% and the reduction in efficiency exceeded the reduction in head if the concentration by weight exceeded 40%. A similar pattern was found with another pump and a coarser mineral, however, the reductional effects were larger. With high concentrations of the finest tailings product (maximum particle size equals 0. 1 mm), the drop in efficiency was reasonably well correlated to the pump Reynolds number and the specific speed. Although the reductional effects are less pronounced in large pumps, the exact scaling criteria are not known at present.

Place, publisher, year, edition, pages
New York: American Society of Mechanical Engineers , 1986. p. 143-148
Series
FED / Fluids Engineering Division. American Society of Mechanical Engineers, ISSN 0888-8116 ; 38
National Category
Water Engineering
Research subject
Water Resources Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-31190Local ID: 54c75580-070a-11dd-97e0-000ea68e967bOAI: oai:DiVA.org:ltu-31190DiVA, id: diva2:1004420
Conference
International Symposium on Slurry Flows, at the Winter Annual Meeting of the American Society of Mechanical Engineers : 07/12/1986 - 12/12/1986
Note
Godkänd; 1986; 20080410 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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