Determination of conversion relations for the use of small hydrodynamic pumps in reverse turbine operation
Laen...
Kuupäev
2018
Kättesaadavus
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
In small
-
scale hydropower, hydrodynamic pumps used in reverse mode are an
important economical alternative to conventional water turbines. E
fficient utilisation of these
devices however requires taking into account all the specifics of the reverse pump operation and
optimise the pump design for maximum utilisation of the hydro
-
technical potential of the
deployment site. The article compares ex
isting conversion models, describes initial theoretical
assumptions and determines new conversion relations for the design of pumps as turbines (PAT)
for the lowest power and specific speed category. The validity of the conversion relations is
experimental
ly verified on a hydraulic test circuit with a radial centrifugal pump tested in both
pump and turbine operation modes. The results of the verification of the new conversion relations
proved better correspondence to reality within this category of machines
than that reported by the
previously used conversion models.
Kirjeldus
Article
Märksõnad
pump as turbine (PAT),, conversion relations, pecific speed, head, flowrate, articles