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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" }