The Influence of the Geometrical Features of a Stator with the Crossover Shaped as a Spherical Surface on Pump Performance

Janusz Skrzypacz (), Przemysław Szulc and Witold Lorenz
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Janusz Skrzypacz: Faculty of Mechanical and Power Engineering, Department of Energy Conversion Engineering, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Przemysław Szulc: Faculty of Mechanical and Power Engineering, Department of Energy Conversion Engineering, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Witold Lorenz: Department of Research and Development, Hydro-Vacuum S.A., 86-303 Grudziądz, Poland

Energies, 2022, vol. 15, issue 24, 1-23

Abstract: The paper presents a new approach to designing the stator of a multistage centrifugal pump, which has a simple structure, satisfactory operating parameters, and is easy to manufacture. The stator is distinguished by its lack of a classic diffuser part, with the shape of its crossover being similar to a segment of a spherical surface. This solution was patented in 1989, but to date it is not well known and practically not used. The paper attempts to identify the flow phenomena in such a stator and also to examine the impact of the design features of the stator on the pump’s operating parameters. Both experimental methods and numerical modelling were used in the research.

Keywords: multistage pumps; CFD; stator; guide vanes; LDA (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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