Turbines

WE DO RESEARCH, DEVELOPMENT and OPTIMIZATION: hydraulics for turbines / pump turbines / pumps, nozzles, spirals, valves, efficiency, life cycle, water hammer, turbine in- and outtake, surge chamber, penstock, acceptance tests acc. to IEC standards, trouble shooting and refurbishment - covering the range from small to large hydro power plants.


Selection of references

Development of hydraulics for a vertical Kaplan turbine

Development of hydraulics for a vertical Kaplan turbine

  • maximum flow Qmax = 16 m³/s
  • nominal head Hdesign = 3 m
  • nominal speed n = 115 U/min

 

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Entwicklung einer Kaplan-Rohrturbinen-Hydraulik

Entwicklung einer Kaplan-Rohrturbinen-Hydraulik

  • Ausbaudurchfluss QMax = 8,5 m³/s
  • Nennfallhöhe HNenn = 9,45 m
  • Schnellläufigkeit n = 428 U/min

...mehr

Experimentelle Untersuchung einer Durchströmturbine

Experimentelle Untersuchung einer Durchströmturbine

  • Fallhöhe: HNenn = 21.8 m
  • Durchfluss: QMax = 280 l/s
  • Drehzahl: nNenn = 500 U/min

...mehr

Wirkungsgradmessung Wasserkraftwerk: Pelton-Turbine

Wirkungsgradmessung Wasserkraftwerk: Pelton-Turbine

  • Überprüfung der Garantiewerte des Herstellers
  • „Clamp on“-Ultraschall-Messsystems in zweipfadiger V-Messanordnung
  • Anlagenkennlinie und Rohrreibungsbeiwert der Druckrohrleitung

...mehr

Redesign of hydraulics for a Kaplan turbine

Redesign of hydraulics for a Kaplan turbine

  • Basic design, one-dimensional, on 6 partial flow turbine wheels
  • Starting geometry defined by means of the Scholz-Czibere procedure
  • Definition of blade and profile length by means of Thomann`s references

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Numerische Simulation der Einlaufstruktur, Leitapparat sowie Geschwindigkeitsvektoren einer Kaplan-Turbine

Numerische Simulation Einlaufstruktur Kaplan-Z-Turbine

  • Fallhöhe Hmax = 22,50 m
  • Max. Durchfluss  Qmax = 14 m³
  • Drehzahl n = 375 rpm
  • Ziel: Optimierung Strömungsverluste und Kraftfluktuationen im Bereich der Leitbleche/Maschinenwelle

mehr...

Rekonstruktion / Refurbishment von Kaplan-Laufschaufeln

Rekonstruktion von Kaplan-Laufschaufeln

  • Oberflächenscan
  • Geometrische Rekonstruktion
  • Verschleißrücklage

mehr...

CFD calculations for a hydro power plant

CFD calculations for a hydro power plant

3 parallel EOS-700 bulb turbines (with one fixed and one variable blade position, nominal diameter 700 mm)

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Development of new turbine hydraulics for a hydro power plant

Development of new turbine hydraulics for a hydro power plant

Based on the calculation results of the project “CFD calculations for a hydro power plant” new, semi-regulated Kaplan turbine hydraulics for an EOS-700 turbine were developed.

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Development of hydraulics for a Francis turbine with nq=66

Development of hydraulics for a Francis turbine with nq=66

  • The runner hydraulics is based on approaches determined by SIERVO and THOMANN.
  • The blade profiles base on the 4-digit NACA profile NACA-0006.
  • Comparison of the efficiencies of different runner blades.

 

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Refurbishment: Neuentwicklung der Hydraulik einer historischen Francis-Turbine

Hydraulikneuentwicklung einer historischen Francis-Turbine

  • Fallhöhe H = 5m
  • Qnenn (80 %) = 24 m³/s
  • Spezifische Drehzahl nq = 80,26 U/min
  • Ergebnis: Wirkungsgradsteigerung bis zu 14%

mehr...

Examination of pump turbines on test rig acc. to IEC 60193

Examination of pump turbines on test rig acc. to IEC 60193

  • Examination on 4-quadrant test rig acc. to IEC 60193
  • Five variants of runner types
  • turbine operation chart, hydraulic efficiency, cavitation,...

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Experimentelle Untersuchung der „S-Schlag“-Instabilität von Pumpturbinen

Experimentelle Untersuchung der „S-Schlag“-Instabilität von Pumpturbinen

  • Stabilitätsprobleme im Teillastbereich
  • Pumpturbinenmodell am 4-Quadranten-Prüfstand nach IEC 60193
  • Untersuchung mit Highspeed Stereo PIV-Messungen

...mehr

Design of the hydraulics for a Kaplan residual water turbine

Design of the hydraulics for a Kaplan residual water turbine

  • maximum flow QMax=1.5m³/s
  • minimum flow QMin=0.8m³/s
  • specific speed nq=300U/min
  • diameter D=0.65m
  • 7-pole generator

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Rim-lip-seal of a STRAFLO Kaplan turbine

Rim-lip-seal of a STRAFLO Kaplan turbine

Test rig investigation of the wear behaviour of the rim-lip-seal for Straflo Kaplan turbines operated in pure water and in sediment-laden water.


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Pelton distribution pipeline

Pelton turbine: distribution pipeline & cup geometry

  • Geometry development
  • Optimisation cup geometry
  • Optimisation of jet quality

...Read more

Status report on the development of a dynamic pressure machine

Status report on the development of a dynamic pressure machine

  • Field of application: Small Hydro Power and Micro Hydro Power
  • Requirements: streaming waters with low heads and fluctuating water volumes

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Get connected

LinkedIn: Institute of Hydraulic Fluid Machinery (HFM), Graz University of Technolgy
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We do research, development and optimisations for

  • Hydraulics for turbines / pump turbines / pumps
  • Acceptance tests acc.  to IEC standards 
  • Nozzels
  • Spirals
  • Turbine in- and outtakes
  • Valves & fittings
  • Runners, guide vanes
  • Water hammer
  • Seals
  • Surge chamber
  • Penstock
  • Refurbishment
  • Efficiency
  • Life cycle
  • ...

We solve your challenge. Contact us.

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