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Centrifugal pump performance deratings for a broadly graded (4-component) slurry
GIWIndustries, United States.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
GIWIndustries, United States.
GIWIndustries, United States.
2017 (English)In: International Conferences on Transport and Sedimentation of Solid Particles 2017, Wydawnictwo Uniwersytetu Przyrodniczego we Wroclawiu , 2017, p. 359-367Conference paper, Published paper (Refereed)
Abstract [en]

A 4-component model for settling slurry pipeline friction loss has been previously described by Wilson and Sellgren. The goal of the present work is to adapt the concepts of this model to the calculation of centrifugal slurry pump performance deratings (i.e. pump solids effect). Tests were carried out using four different graded silica and crushed granite products representing the four model components. These were then combined and tested in permutations from the individual components to the complete mixture at various concentrations. Closed-loop run times were limited to minimize solids degradation. Primary experiments were carried out using a GIW 8×10 LSA-32 pump and selected corresponding experiments were repeated using a smaller GIW 3×4 LCC-12 pump. In all, 40 tests were performed with particle sizes ranging from minus 40 μm to 12.5 mm, dso particle sizes from minus 40 um to 7.5 mm, and delivered solids concentrations from 4% to 38% by volume. Particle size distributions varied from very narrow to very broad, with d85/d50 ratios ranging from 1.3 to 30. A new 4-component model for the pump Head Reduction Factor (solids effect on head) is proposed and compared with the existing mono-sized model described in the Centrifugal Slurry Pump Standard ANSI/HI 12.1-12.6-2016.

Place, publisher, year, edition, pages
Wydawnictwo Uniwersytetu Przyrodniczego we Wroclawiu , 2017. p. 359-367
Series
Zeszyty naukowe Akademii Rolniczej we Wrocławiu Konferencje, ISSN 1232-3071
National Category
Water Engineering
Research subject
Water Resources Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-67158Scopus ID: 2-s2.0-85038102731OAI: oai:DiVA.org:ltu-67158DiVA, id: diva2:1170749
Conference
18th International Conferences on Transport and Sedimentation of Solid Particles, T and S 2017; Prague; Czech Republic; 11-15 September 2017
Available from: 2018-01-04 Created: 2018-01-04 Last updated: 2018-01-09Bibliographically approved

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