Publication result detail

Effect of blade layout on performance of low specific speed pump operating in turbine mode

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

English Title

Effect of blade layout on performance of low specific speed pump operating in turbine mode

Type

Paper in proceedings (conference paper)

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.

English 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

Key words in English

pump, splitters, PaT, simulation, measurements

Authors

ŠTEFAN, D.; CHABANNES, L.; HUDEC, M.; BEZDÍČEK, J.; RUDOLF, P.

RIV year

2023

Released

14.10.2022

Book

IOP Conference Series: Earth and Environmental Science

ISBN

1755-1315

Periodical

IOP Conference Series: Earth and Environmental Science

Volume

1079

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

10

Pages count

10

URL

https://iopscience.iop.org/article/10.1088/1755-1315/1079/1/012071

Full text in the Digital Library

http://hdl.handle.net/

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"
}