Publication detail

Stability of Q-Y characteristic of centrifugal pump

POCHYLÝ, F. HALUZA, M. DRÁBKOVÁ, S.

Original Title

Stability of Q-Y characteristic of centrifugal pump

Type

conference paper

Language

English

Original Abstract

At the pumps of low specific speed it is possible, that near the point of zero discharge the Q-Y characteristic is unstable. This phenomenon of unstable Q-Y characteristic causes big pressures and discharge pulsations, which are characterized by self- excited oscillations of the systems. It is not recommended to run the pump between points of unstable characteristic. For this pump it is impossible to work in exacting operations (atomic power stations, heating plant stations, chemical industry). The stability conditions (Y,Q) are analyzed on the basis of dissipation function. It is assumed, that power input of the pump is linear function of the discharge.

Keywords

Stability, characteristics, pump, pulsations

Authors

POCHYLÝ, F.; HALUZA, M.; DRÁBKOVÁ, S.

RIV year

2009

Released

11. 5. 2009

Publisher

Akademoie věd České republiky

Location

Praha

ISBN

978-80-86246-35-2

Book

Engineering Mechanics 2009 - book of extended abstracts

Edition

První edice, 2009

Edition number

1

Pages from

208

Pages to

215

Pages count

8

BibTex

@inproceedings{BUT29701,
  author="František {Pochylý} and Miloslav {Haluza} and Sylva {Drábková}",
  title="Stability of Q-Y characteristic of centrifugal pump",
  booktitle="Engineering Mechanics 2009 - book of extended abstracts",
  year="2009",
  series="První edice, 2009",
  number="1",
  pages="208--215",
  publisher="Akademoie věd České republiky",
  address="Praha",
  isbn="978-80-86246-35-2"
}