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ŠTEFAN, D. CHABANNES, L. HUDEC, M. BEZDÍČEK, J. RUDOLF, P.
Original Title
Effect of blade layout on performance of low specific speed pump operating in turbine mode
Type
conference paper
Language
English
Original Abstract
The very low specific speed pump (nq = 8.9) operated in turbine mode was analyzed. The experimental and numerical studies were carried out in order to show effect of different blade layout on pump-as-turbine (PaT) performance. In total three different impellers were analyzed. One impeller consisting of four main blades and two impellers consisting of four main blades and different arrangement of splitter blades. Either single splitter blade or two splitter blades are placed between each of main blades. While measurements pointed out the main PaT performance, the simulations enable to analyze internal flow fields and point out the mechanisms of performance variation using different impellers. The main aim of this study is to clarify usability of very low specific speed pump for energy recovery in terms of pump as turbine operation or for storage capability in terms of pump-turbine.
Keywords
pump, splitters, PaT, simulation, measurements
Authors
ŠTEFAN, D.; CHABANNES, L.; HUDEC, M.; BEZDÍČEK, J.; RUDOLF, P.
Released
14. 10. 2022
ISBN
1755-1315
Periodical
IOP Conference Series: Earth and Environmental Science
Year of study
1079
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
Pages to
10
Pages count
URL
https://iopscience.iop.org/article/10.1088/1755-1315/1079/1/012071
BibTex
@inproceedings{BUT178345, author="David {Štefan} and Lilian {Chabannes} and Martin {Hudec} and Jiří {Bezdíček} and Pavel {Rudolf}", title="Effect of blade layout on performance of low specific speed pump operating in turbine mode", booktitle="IOP Conference Series: Earth and Environmental Science", year="2022", journal="IOP Conference Series: Earth and Environmental Science", volume="1079", number="1", pages="1--10", doi="10.1088/1755-1315/1079/1/012071", issn="1755-1315", url="https://iopscience.iop.org/article/10.1088/1755-1315/1079/1/012071" }